Chrysler 300M 1999 Manual Download Page 273

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TEST 4A

REPAIRING LOW BEAM HEADLAMPS THAT WILL NOT TURN OFF

Perform TEST 1A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

NOTE: FOR LOCATION ENSURE

THE

OF ALL COMPONENTS.

HEADLAMP SWITCH IS

START TEST 4A.

IN THE OFF
POSITION.

SEE GENERAL INFO 4.0

WITH THE DRB

SELECT "SENSORS"

IS THE VOLTAGE

REPLACE THE

AND READ THE

APPROXIMAETLY

HEADLAMP SWITCH.*

HEADLAMP SWITCH

4.5 VOLTS?

VOLTAGE.

YES

REMOVE THE LOW
BEAM HEADLAMP

DID THE LOW BEAM

CONTINUE TEST

RELAY.

HEADLAMPS TURN

4A ON THE NEXT

OFF? PAGE.

FIG. 1

YES

SUBSTIUTE THE LOW

BEAM HEADLAMP

DID THE LOW BEAM

REPLACE THE

RELAY WITH A KNOWN

HEADLAMPS COME ON?

ORIGINAL LOW BEAM

GOOD RELAY.

HEADLAMP RELAY.*

FIG. 1

YES

REMOVE THE LOW

REMOVE THE BODY

BEAM HEADLAMP

CONTROL MODULE

RELAY. FROM

THE JUNCTION

BLOCK.

FIG. 1

WITH AN OHMMETER,

AND ALL OTHER J/B

IS THE RESISTANCE

MEASURE BETWEEN

20-WAY INTERNAL

BELOW 100.0 OHMS

YES

REPLACE THE

THE J/B 20-WAY

CONN TERMINALS.

ON ANY OF THE

JUNCTION BLOCK.*

INTERNAL CONN

MEASUREMENTS?

TERMINAL 14...

FIG. 2

REPLACE THE BODY
CONTROL MODULE.*

E
X

S
Y
S

263

Summary of Contents for 300M 1999

Page 1: ...amp Switch 9 3 7 4 Fog Lamp Control 9 3 8 INTERIOR LIGHTING 9 3 8 1 Courtesy Lamp Control 9 3 8 2 Illuminated Entry 9 3 9 MECHANICAL INSTRUMENT CLUSTER 9 3 10 MEMORY SYSTEM 10 3 10 1 Power Seat 10 3 10 2 Memory Seat Glide 11 3 10 3 Guard Bands 11 3 10 4 Memory Mirrors 11 3 10 5 Heated Seats 11 3 11 OVERHEAD TRAVEL INFORMATION SYSTEM OTIS HOMELINK 11 3 12 POWER DOOR LOCK SYSTEM 12 3 13 SENTRY KEY I...

Page 2: ... 4 12 MEMORY SYSTEM 33 4 13 OTIS 35 4 14 POWER DOOR LOCKS RKE 36 4 15 SENTRY KEY IMMOBILIZER SYSTEM 38 4 16 VEHICLE COMMUNICATION SYSTEM 38 4 17 VEHICLE THEFT SECURITY SYSTEM 40 4 18 WIPER SYSTEM 41 5 0 DISCLAIMERS SAFETY WARNINGS 43 5 1 DISCLAIMERS 43 5 2 SAFETY 43 5 2 1 Technician Safety Information 43 5 2 2 Vehicle Preparation for Testing 43 5 2 3 Servicing Sub Assemblies 43 5 2 4 DRBIIIT Safet...

Page 3: ...ULE REPLACEMENT PROCEDURE 92 AUDIO SYSTEMS 1A IDENTIFYING RADIO PCI BUS PROBLEMS 94 AUTOMATIC TEMPERATURE CONTROL SYSTEM 1A IDENTIFYING AUTOMATIC TEMPERATURE CONTROL PROBLEMS 114 2A REPAIRING AUTOMATIC TEMPERATURE CONTROL HEAD SWITCHES 118 3A REPAIRING 9BLEND DOOR FEEDBACK STALL TEST FAILURE9 TROUBLE CODE 120 4A REPAIRING 9BLEND DOOR OUTPUT SHORTED TO GROUND9 TROUBLE CODE 128 5A REPAIRING 9BLEND M...

Page 4: ...DRIVER SEAT BELT FASTENED 224 9A REPAIRING CHIME SOUNDS WITH DRIVER DOOR OPEN 226 DOOR AJAR SYSTEM 1A IDENTIFYING DOOR AJAR PROBLEMS 228 2A REPAIRING OPEN LEFT FRONT DOOR AJAR CIRCUIT 230 3A REPAIRING SHORTED LEFT FRONT DOOR AJAR CIRCUIT 232 4A REPAIRING OPEN LEFT REAR DOOR AJAR CIRCUIT 234 5A REPAIRING SHORTED DOOR AJAR CIRCUIT 236 6A REPAIRING OPEN RIGHT FRONT DOOR AJAR CIRCUIT 242 7A REPAIRING ...

Page 5: ... LOW WASHER FLUID INDICATOR OPERATING IMPROPERLY 360 19A REPAIRING DOOR AJAR INDICATOR 364 20A REPAIRING TRUNK AJAR INDICATOR 368 INTERIOR LIGHTING SYSTEM 1A INDENTIFYING INTERIOR LIGHTING SYSTEM FAILURES 372 2A REPAIRING COURTESY LAMP OUTPUT SHORT TO BATTERY 374 3A REPAIRING COURTESY LAMPS INOPERATIVE FROM ALL DOORS AND COURTESY LAMP SWITCH 376 4A REPAIRING ONE INOPERATIVE COURTESY LAMP 384 5A RE...

Page 6: ...A REPAIRING 9HORIZONTAL FORWARD POSITION STUCK9 TROUBLE CODE 454 11A REPAIRING 9HORIZONTAL REARWARD POSITION STUCK9 TROUBLE CODE 456 12A REPAIRING 9HORIZONTAL SENSOR OUT OF RANGE LOW9 TROUBLE CODE 458 13A REPAIRING 9HORIZONTAL SENSOR OUT OF RANGE HIGH9 TROUBLE CODE 460 14A REPAIRING 9RECLINER DOWN POSITION STUCK9 TROUBLE CODE 462 15A REPAIRING 9RECLINER UP POSITION STUCK9 TROUBLE CODE 464 16A REPA...

Page 7: ... RANGE HIGH9 TROUBLE CODE 518 37A REPAIRING 9LEFT MIRROR VERTICAL SENSOR OUT OF RANGE LOW9 TROUBLE CODE 520 38A REPAIRING 9LEFT MIRROR VERTICAL SENSOR OUT OF RANGE HIGH9 TROUBLE CODE 522 39A REPAIRING 9RIGHT MIRROR HORIZONTAL SENSOR OUT OF RANGE LOW9 TROUBLE CODE 524 40A REPAIRING 9RIGHT MIRROR HORIZONTAL SENSOR OUT OF RANGE HIGH9 TROUBLE CODE 526 41A REPAIRING 9RIGHT MIRROR VERTICAL SENSOR OUT OF...

Page 8: ...RED WITHOUT PROGRAM REQUEST9 TROUBLE CODE 613 17A REPAIRING 9DECKLID RELEASE SWITCH FAILURE9 TROUBLE CODE 614 18A REPAIRING 9DECKLID RELEASE SOLENOID OUTPUT FAILURE9 TROUBLE CODE 616 VEHICLE COMMUNICATION 1A IDENTIFYING VEHICLE COMMUNICATION PROBLEMS 620 2A REPAIRING AIRBAG CONTROL MODULE 9NO RESPONSE9 622 3A REPAIRING AUTOMATIC TEMPERATURE CONTROL MODULE 9NO RESPONSE9 OR 9ATC MESSAGES NOT RECEIVE...

Page 9: ...RING WIPER ON OFF RELAY CONTROL CIRCUIT SHORTED HIGH 696 5A REPAIRING WIPERS NOT WORKING AT ALL 698 6A REPAIRING WIPERS NOT WORKING IN THE HIGH SPEED MODE 712 7A REPAIRING WIPERS NOT WORKING IN THE LOW SPEED MODE 716 8A REPAIRING WIPERS NOT WORKING IN THE INTERMITTENT MODE 720 9A REPAIRING WIPER WASH FUNCTION NOT WORKING PROPERLY 722 10A REPAIRING WIPERS OPERATE IN HIGH SPEED ONLY 726 11A REPAIRIN...

Page 10: ...MPERATURE CONTROL 745 10 5 CLIMATE CONTROL MANUAL TEMPERATURE CONTROL 746 10 6 DOOR AJAR 746 10 7 EXTERIOR LIGHTING 747 10 8 INSTRUMENT CLUSTER 748 10 9 INTERIOR LIGHTING 748 10 9 INTERIOR LIGHTING 749 10 10 MEMORY SYSTEM 750 10 11 OTIS 751 10 12 POWER DOOR LOCKS RKE 752 10 13 VEHICLE COMMUNICATIONS 753 10 14 VEHICLE THEFT SECURITY SYSTEM 753 10 15 WIPER SYSTEM 754 11 0 REQUIRED TOOLS AND EQUIPMEN...

Page 11: ...o a specific test Side headers are used to direct alphabetically to the specific Systems All locators views are located in Section 4 0 This book reflects many suggested changes from readers of past issues After using this book if you have any comments or recommendations please fill out the form at the back of the book and mail it back to us 1 1 System Coverage This diagnostic procedures manual cov...

Page 12: ...met the ACM sends an electrical signal to deploy the airbag system components The impact sensor is an accelerometer that senses the rate of vehicle deceleration which provides verification of the direction and severity of an impact The impact sensor is calibrated for the specific vehicle and is only serviced as a unit with the ACM The ACM also contains an energy storage capacitor This capacitor st...

Page 13: ...O NOT STORE AT TEMPERATURE EXCEEDING 93 C 200 F Clockspring The clockspring is mounted on the steering column behind the steering wheel This assembly consists of a plastic housing which contains a flat ribbon like electrically conductive tape that winds and unwinds with the steering wheel rotation The clockspring is used to maintain a continuous electrical circuit between the instrument panel wire...

Page 14: ...stem Problems This will direct you to the specific test s that must be performed Active diagnostic trouble codes for the airbag system are not permanent and will change the moment the reason for the code is corrected In certain test procedures within this manual diagnostic trouble codes are used as a diagnostic tool 3 1 2 Active Codes The code becomes active as soon as the malfunction is detected ...

Page 15: ...ts and can be recalled by pressing the optional memory select button located on the drivers door The RBR will have 6 speakers and a 120 watt external amplifier The RBN will have 7 speakers and a 240 watt external amplifier The RAZ will have 9 speakers and a 320 watt external amplifier Depending on the manufacturer some systems have a Front Rear channel system and others have a Left Right channel s...

Page 16: ...es The required information is as follows Engine RPM Engine Temperature Injector on Time and Distance Pulses Vehicle Speed Charging System Failure Engine Temperature Limp In VTSS Arming Status Engine Model 9Check Engine9 lamp status The BCM provides the PCM with information on the A C switch status battery temperature which is determined by the ambient temperature sensor and the 9OK to Start9 or V...

Page 17: ...of 4 seconds to a maximum of 10 sec onds BCM will sound the chime when program ming mode is started Within the 4 10 second range press the panic button while continuing to press the unlock button BCM will sound a second chime after each FOB has been learned a 32 second time out period has elapsed or the vehi cle ignition has been turned off Release both buttons Press any button of FOB S to be lear...

Page 18: ...er short related codes Having only stall trouble codes indicates that there is a problem with an open or short circuit in the wiring a bad actuator a bad HVAC unit door or connecting linkage It is important that the operation of the HVAC door be checked if an actuator is removed This can be checked by rotating each unit door shaft to confirm that the door will stop at both ends of travel The actua...

Page 19: ...4 Fog Lamp Control The body control module controls the operation of the fog lamp relay which controls the fog lamps The fog lamps can only be on if the park or low beam headlamps are on If the high beams are turned on the fog lamps will remain on 3 8 Interior Lighting 3 8 1 Courtesy Lamp Control The body controller has direct control over the majority of the vehicle s courtesy lamps The body comp...

Page 20: ...nt seat position drivers memory seat and mirrors actuate the drivers and passenger heated seat heater and send the memory location over the PCI bus When a memory button is pressed either 1 or 2 on the memory switch the MHSMM sends a message to the BCM which in turn sends a recall message to the MHSMM and the PCI radio They will in turn position the left seat and both mirrors along with setting the...

Page 21: ...sition of the outside mirrors The MHSMM adjusts the mirrors to the appropriate positions when a memory recall message is received from the RKE or is requested from the memory switch The power mirror switch during non memory operation operates both mirrors independently of the MHSMM 3 10 5 Heated Seats The controls for the heated seats are located on the side of each seat The system offers two seat...

Page 22: ...ected to the junction block With this feature RKE can now be added to a non equipped vehicle by installing a module If the vehicle is equipped with the vehicle theft security system RKE will also arm and disarm that system A new 4 button transmitter is used this year which will provide lock unlock decklid release and panic features Decklid release is only operable while the vehicle is in the park ...

Page 23: ... to help distinguish between different node connections The bus is designed to handle a maximum number of nodes to meet all of the bus load and timing requirements The bus resistance and capacitance is designed to provide a maximum level of filtering without distorting the bus symbols This is why extra capacitance and resistance should not be added to the PCI Data Bus circuitry In order for an ele...

Page 24: ...headlamps park and tail lamps and the VTSS indicator lamp Passive arming occurs upon normal vehicle exit by turning the ignition off opening the driver s door locking the doors with the power lock and closing the driver s door or locking the doors with RKE Manual arming occurs by using the key to lock the doors after closing them The indicator lamp on the dash will flash for 15 seconds showing tha...

Page 25: ...g functions to provide the driver selected features 3 16 1 System Features Speed Sensitive Intermittent Wipe Mode There are 6 individual delay times with a minimum delay of 1 2 second to a maximum of 18 seconds When the vehicle speed is under 6 KMH 10 MPH the delay time is doubled providing a range of 1 second to 36 seconds Pulse Wipe The wiper is in the off position and the driver presses the was...

Page 26: ...cuit Shorted to Ground Loss of Ignition Run Only Loss of Ignition Run Start No Cluster Message No Cluster IFR Communication No PCI Communication Passenger Squib Circuit Open Passenger Squib Circuit Shorted Passenger Squib Circuit Shorted to Battery Passenger Squib Circuit Shorted to Ground Power Stage Not Tested Warning Lamp open shorted 3 17 2 Audio Trouble Codes Radio Error CD Error Cass Error S...

Page 27: ...Not Received Mode Door Feedback Failure Mode Door Output Shorted to Battery Mode Door Output Shorted to Ground Mode Door Stall Test Failure OTIS Messages Not Received Pass Door Central lock arm unlock disarm Switch Failure Post Failure RKE Program Mode Entered Without Program Request RKE Unable to Enter Program Mode Recirc Door Output Shorted to Battery Recirc Door Output Shorted to Ground Recircu...

Page 28: ...ition Stuck Rear Riser Sensor Out of Range Low Rear Riser Sensor Out of Range High Recliner Down Position Stuck Recliner Up Position Stuck Recliner Sensor Out of Range Low Recliner Sensor Out of Range High Right Heated Seat Switch Open Shorted to Ground Right Thermistor Out of Range Low Right Thermistor Out of Range High Right Heated Seat Switch Stuck in High State Right Heated Seat Switch Stuck i...

Page 29: ...IIIT Does Not Power Up If the LED s do not light or no sound is emitted at start up check for loose cable connections or a bad cable If all connections are proper between the DRB and the vehicle or other devices and the vehicle battery is fully charged see vehicle communication test 1A 3 21 Display is Not Visible Low temperatures will affect the visibility of the display Adjust the contrast to com...

Page 30: ...NOTES G E N E R A L I N F O R M A T I O N 20 ...

Page 31: ...4 0 SYSTEM COMPONENT LOCATIONS 4 1 Data Link Connector 4 2 Power Distribution Center G E N E R A L I N F O R M A T I O N 21 ...

Page 32: ...4 3 Fuse Block Junction Block 4 4 Airbag System G E N E R A L I N F O R M A T I O N 22 ...

Page 33: ...4 5 Audio System G E N E R A L I N F O R M A T I O N 23 ...

Page 34: ...4 5 Audio System continued G E N E R A L I N F O R M A T I O N 24 ...

Page 35: ...4 6 Body Control Module and Junction Block G E N E R A L I N F O R M A T I O N 25 ...

Page 36: ...4 6 Body Control Module and Junction Block continued 4 7 Climate Control 4 7 1 Auto Temp Control G E N E R A L I N F O R M A T I O N 26 ...

Page 37: ...4 7 2 Manual Temp Control G E N E R A L I N F O R M A T I O N 27 ...

Page 38: ...4 7 2 Manual Temp Control continued 4 7 3 ATC and MTC G E N E R A L I N F O R M A T I O N 28 ...

Page 39: ...4 8 Chime 4 9 Door Ajar G E N E R A L I N F O R M A T I O N 29 ...

Page 40: ...4 9 Door Ajar continued 4 10 Exterior Interior Lighting G E N E R A L I N F O R M A T I O N 30 ...

Page 41: ...G E N E R A L I N F O R M A T I O N 31 ...

Page 42: ...4 11 Instrument Cluster FUEL TANK SENDING UNIT G E N E R A L I N F O R M A T I O N 32 ...

Page 43: ...4 12 Memory System G E N E R A L I N F O R M A T I O N 33 ...

Page 44: ...4 12 Memory System continued G E N E R A L I N F O R M A T I O N 34 ...

Page 45: ...4 13 OTIS G E N E R A L I N F O R M A T I O N 35 ...

Page 46: ...4 13 OTIS continued 4 14 Power Door Locks RKE G E N E R A L I N F O R M A T I O N 36 ...

Page 47: ...G E N E R A L I N F O R M A T I O N 37 ...

Page 48: ...4 15 Sentry Key Immobilizer System 4 16 Vehicle Communication System G E N E R A L I N F O R M A T I O N 38 ...

Page 49: ...ABS PCM TCM G E N E R A L I N F O R M A T I O N 39 ...

Page 50: ...4 17 Vehicle Theft Security System G E N E R A L I N F O R M A T I O N 40 ...

Page 51: ...4 18 Wiper System G E N E R A L I N F O R M A T I O N 41 ...

Page 52: ...4 18 Wiper System continued G E N E R A L I N F O R M A T I O N 42 ...

Page 53: ...vice manual procedures Following these procedures is very important to the safety of individuals performing diagnostic tests 5 2 2 Vehicle Preparation for Testing Make sure the vehicle being tested has a fully charged battery If it does not false diagnostic codes or error messages may occur 5 2 3 Servicing Sub Assemblies Some components of the powertrain system are intended to be serviced in assem...

Page 54: ...ark plug or coil wires to avoid measuring error from outside interference 5 3 Warnings 5 3 1 Vehicle Damage Warnings Before disconnecting any control module make sure the ignition is off Failure to do so could damage the module When testing voltage or continuity at any control module use the terminal side not the wire end of the connector Do not probe a wire through the insulation this will damage...

Page 55: ...6 0 FIELD EXPERIENCE NOTES G E N E R A L I N F O R M A T I O N 45 ...

Page 56: ...NOTES G E N E R A L I N F O R M A T I O N 46 ...

Page 57: ...7 0 DIAGNOSTIC INFORMATION AND PROCEDURES 7 1 GENERAL TROUBLESHOOTING 47 ...

Page 58: ...vailable relating to these items Problem With Perform Airbag System Airbag Test 1A Audio System Audio Test 1A Blank DRB Screen Vehicle Communication Test 1A Chime Warning System Chime Test 1A Climate Control System automatic ATC Test 1A Climate Control System manual MTC Test 1A Door Ajar Indicator System Door Ajar Test 1A Exterior Lighting System Exterior Lighting Test 1A Instrument Cluster Instru...

Page 59: ...Mode Door Stall Test Failure Blend Door Stall Test Failure Mode Door Feedback Failure Blend Door Feedback Failure Recirculation Door Test Failure Automatic or Manual Temperature Control System Test 1A Mode Door Output Shorted to Battery Blend Door Output Shorted to Battery Recirc Door Output Shorted to Battery Common Output Shorted to Ground Mode Door Output Shorted to Ground Recirc Door Output Sh...

Page 60: ...TEST 1A IDENTIFYING AIRBAG SYSTEM PROBLEMS Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding A I R B A G S Y S T E M 50 ...

Page 61: ... TEST 19A With the DRB erase stored codes If there are no active codes present go to Step 4 If any of the following active codes are present perform the test indicated below DIAGNOSTIC TROUBLE CODES DTC DISPLAYED PERFORM Cluster Message Mismatch TEST 2A Driver Squib Circuit Open TEST 3A Driver Squib Circuit Shorted TEST 4A Driver Squib Circuit Shorted to Battery TEST 5A Driver Squib Circuit Shorte...

Page 62: ...TEST 2A REPAIRING CLUSTER MESSAGE MISMATCH Perform TEST 1A Before Proceeding A I R B A G S Y S T E M 52 ...

Page 63: ...RB PERFORM SELECT PASSIVE USING THE DRB DISPLAY YES VEHICLE RESTRAINTS READ THE WARNING MIC LAMP STATE COMMUNICATION AIRBAG AND LAMP STATUS NO RESPONSE TEST 1A MONITOR DISPLAY NO IS THE AIRBAG NO REPLACE THE WARNING LAMP ON INSTRUMENT CLUSTER YES DOES THE DRB DISPLAY YES REPLACE THE MIC LAMP STATE INSTRUMENT OFF CLUSTER NO DOES THE DRB DISPLAY NO PERFORM TEST ACM LAMP REQUEST 19A OFF YES REPLACE T...

Page 64: ...TEST 3A REPAIRING DRIVER SQUIB CIRCUIT OPEN Perform TEST 1A Before Proceeding FIG 1 FIG 2 A I R B A G S Y S T E M 54 ...

Page 65: ... CARE NOT TO DAMAGE WIRE ACROSS DRIVER ENGINE OFF THE CONNECTOR IN AIRBAG LINE 1 AND THE NEXT STEP LINE 2 CKTS RECONNECT THE FIG 1 BATTERY DOES THE DRB WITH THE DRB READ DISPLAY YES REPLACE DRIVER THE ACTIVE CODES DRIVER SQUIB CKT AIRBAG MODULE SHORTED NO DISCONNECT THE CONNECT A JUMPER CKTS AT THE CLOCKSPRING 2 WAY WIRE ACROSS DRIVER CLOCKSPRING 2 WAY HARNESS AIRBAG HARNESS CONNECTOR CONNECTOR LI...

Page 66: ...TEST 3A CONTINUED REPAIRING DRIVER SQUIB CIRCUIT OPEN FIG 1 FIG 2 A I R B A G S Y S T E M 56 ...

Page 67: ...RE THE DRIVER THE DRIVER AIRBAG REPAIR OPEN OR AIRBAG LINE 1 CKT LINE 1 CKT AT THE IS THE RESISTANCE NO HIGH RESISTANCE IN BETWEEN THE ACM CLOCKSPRING 2 WAY BELOW 5 0 OHMS THE DRIVER AIRBAG HARNESS CONNECTOR HARNESS CONNECTOR LINE 1 CIRCUIT AND FIG 2 YES MEASURE THE DRIVER THE DRIVER AIRBAG REPAIR OPEN OR AIRBAG LINE 2 CKT LINE 2 CKT AT THE IS THE RESISTANCE NO HIGH RESISTANCE IN BETWEEN THE ACM C...

Page 68: ...TEST 4A REPAIRING DRIVER SQUIB CIRCUIT SHORTED Perform TEST 1A Before Proceeding FIG 1 A I R B A G S Y S T E M 58 ...

Page 69: ...E SQUIB HARNESS CONNECTOR TURN IGNITION ON DOES THE DRB ENGINE OFF WITH THE DRB READ DISPLAY YES REPLACE DRIVER THE ACTIVE CODES DRIVER SQUIB AIRBAG MODULE RECONNECT THE CIRCUIT OPEN BATTERY NO DISCONNECT THE DOES THE DRB CLOCKSPRING 2 WAY WITH THE DRB READ DISPLAY YES REPLACE THE HARNESS THE ACTIVE CODES DRIVER SQUIB CLOCKSPRING CONNECTOR CIRCUIT OPEN NO TURN IGNITION OFF MEASURE BETWEEN THE CHEC...

Page 70: ...TEST 5A REPAIRING DRIVER SQUIB CIRCUIT SHORTED TO BATTERY Perform TEST 1A Before Proceeding FIG 1 A I R B A G S Y S T E M 60 ...

Page 71: ... THE CIRCUIT SHORTED TO BATTERY BATTERY YES DISCONNECT THE DOES THE DRB CLOCKSPRING 2 WAY WITH THE DRB READ DISPLAY NO REPLACE THE HARNESS THE ACTIVE CODES DRIVER SQUIB CLOCKSPRING CONNECTOR CIRCUIT SHORTED TO BATTERY YES WARNING DISCONNECT DISCONNECT THE TURN THE IGNITION THE BATTERY AND WAIT AIRBAG CONTROL ON 2 MINUTES BEFORE MODULE 23 WAY PROCEEDING HARNESS RECONNECT THE CONNECTOR BATTERY USING...

Page 72: ...TEST 6A REPAIRING DRIVER SQUIB CIRCUIT SHORTED TO GROUND Perform TEST 1A Before Proceeding FIG 1 A I R B A G S Y S T E M 62 ...

Page 73: ...RECONNECT THE CIRCUIT SHORTED TO BATTERY GROUND YES DISCONNECT THE DOES THE DRB CLOCKSPRING 2 WAY WITH THE DRB READ DISPLAY NO REPLACE THE HARNESS THE ACTIVE CODES DRIVER SQUIB CLOCKSPRING CONNECTOR CIRCUIT SHORTED TO GROUND YES WARNING DISCONNECT THE DISCONNECT THE AIRBAG CONTROL RECONNECT THE BATTERY AND WAIT 2 MODULE 23 WAY BATTERY MINUTES BEFORE HARNESS PROCEEDING CONNECTOR USING A OHMMETER BE...

Page 74: ...TEST 7A REPAIRING LOSS OF IGNITION RUN ONLY Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 A I R B A G S Y S T E M 64 ...

Page 75: ... IS THE VOLTAGE NO IGNITION SWITCH IGNITION SWITCH ABOVE 10 0 VOLTS OUTPUT CIRCUIT IF OUTPUT CIRCUIT OK REPLACE THE RUN ONLY FIG 1 IGNITION SWITCH YES WARNING DISCONNECT THE REINSTALL DISCONNECT THE AIRBAG CONTROL FUSE 8 BATTERY AND WAIT 2 MODULE 23 WAY MINUTES BEFORE HARNESS CONNECTOR PROCEEDING FIG 2 TURN IGNITION ON EXIT THE VEHICLE RECONNECT THE BATTERY USING A VOLTMETER MEASURE THE FUSED IS T...

Page 76: ...TEST 7A CONTINUED REPAIRING LOSS OF IGNITION RUN ONLY FIG 1 FIG 2 FIG 3 A I R B A G S Y S T E M 66 ...

Page 77: ...UTPUT BELOW 5 0 OHMS RETEST SYSTEM RUN ONLY CIRCUIT AND GROUND FIG 1 YES WARNING DISCONNECT THE DISCONNECT THE AIRBAG CONTROL BATTERY AND WAIT 2 MODULE 23 WAY MINUTES BEFORE HARNESS CONNECTOR PROCEEDING FIG 2 USING AN OHMMETER REPAIR THE FUSED MEASURE BETWEEN THE IS THE RESISTANCE YES IGNITION SWITCH FUSED IGN SW OUTPUT BELOW 5 0 OHMS OUTPUT RUN ONLY RUN ONLY CKT AND CKT FOR A SHORT TO GROUND FIG ...

Page 78: ...TEST 8A REPAIRING LOSS OF IGNITION RUN START Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 A I R B A G S Y S T E M 68 ...

Page 79: ...SURE THE IGNITION IS THE VOLTAGE NO IGNITION SWITCH SWITCH OUTPUT ABOVE 10 0 VOLTS OUTPUT CKT IF OK CIRCUIT RUN START REPLACE THE FIG 1 IGNITION SWITCH YES WARNING DISCONNECT THE DISCONNECT THE AIRBAG CONTROL INSTALL FUSE 22 BATTERY AND WAIT 2 MODULE 23 WAY MINUTES BEFORE HARNESS CONNECTOR PROCEEDING FIG 2 TURN IGNITION ON EXIT THE VEHICLE RECONNECT THE BATTERY USING A VOLTMETER MEASURE THE FUSED ...

Page 80: ...TEST 8A CONTINUED REPAIRING LOSS OF IGNITION RUN START FIG 1 FIG 2 FIG 3 A I R B A G S Y S T E M 70 ...

Page 81: ...EPLACE THE FUSE FUSED IGN SW OUTPUT BELOW 5 0 OHMS RETEST SYSTEM RUN START CIRCUIT AND GND FIG 1 YES WARNING DISCONNECT THE DISCONNECT THE AIRBAG CONTROL BATTERY AND WAIT 2 MODULE 23 WAY MINUTES BEFORE HARNESS CONNECTOR PROCEEDING FIG 2 USING AN OHMMETER REPAIR THE FUSED MEASURE BETWEEN THE IS THE RESISTANCE YES IGNITION SWITCH FUSED IGN SW OUTPUT BELOW 5 0 OHMS OUTPUT RUN START RUN START CKT AND ...

Page 82: ...TEST 9A REPAIRING NO CLUSTER MESSAGES Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 A I R B A G S Y S T E M 72 ...

Page 83: ...MP STATUS NO PERFORM TEST RESTRAINTS THE LAMP MESSAGES MESSAGES DISPLAY 19A AIRBAG MONITORS FROM THE CLUSTER NO RESP AND YES WARNING DISCONNECT THE DISCONNECT THE DISCONNECT THE AIRBAG CONTROL INSTRUMENT CLUSTER BATTERY AND WAIT 2 MODULE 23 WAY C1 HARNESS MINUTES BEFORE HARNESS CONNECTOR CONNECTOR PROCEEDING FIG 1 USING AN OHMMETER MIC HARNESS MEASURE THE PCI CONNECTOR C1 TO IS THE RESISTANCE YES ...

Page 84: ...TEST 10A REPAIRING NO CLUSTER IFR MESSAGE Perform TEST 1A Before Proceeding A I R B A G S Y S T E M 74 ...

Page 85: ...e Proceeding Perform Verification TEST VER 1A Check connectors Clean repair as necessary PERFORM WITH THE DRB READ DOES THE DRB YES VECHICLE START TEST 10A THE MIC ACTIVE DISPLAY COMMUNICATION DTCS NO RESPONSE TEST 1A NO PERFORM TEST 19A A I R B A G S Y S T E M 75 ...

Page 86: ...TEST 11A REPAIRING NO PCI COMMUNICATION Perform TEST 1A Before Proceeding A I R B A G S Y S T E M 76 ...

Page 87: ... Proceeding Perform Verification TEST VER 1A Check connectors Clean repair as necessary PERFORM WITH THE DRB READ DOES THE DRB YES VECHICLE START TEST 11A THE ACM ACTIVE DISPLAY COMMUNICATION DTCS NO RESPONSE TEST 1A NO PERFORM TEST 19A A I R B A G S Y S T E M 77 ...

Page 88: ...TEST 12A REPAIRING PASSENGER SQUIB CIRCUIT OPEN Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 A I R B A G S Y S T E M 78 ...

Page 89: ...ES THE DRB WITH THE DRB READ DISPLAY YES REPLACE THE RECONNECT THE THE ACTIVE CODES PASSENGER SQUIB PASSENGER AIRBAG BATTERY CKT SHORTED MODULE NO WARNING DISCONNECT THE BATTERY AND WAIT REMOVE THE JUMPER 2 MINUTES BEFORE PROCEEDING DISCONNECT THE AIRBAG CONTROL USE AN OHMMETER IN MODULE 23 WAY THE FOLLOWING HARNESS CONNECTOR STEP FIG 2 MEASURE THE PASSENGER AIRBAG REPAIR OPEN OR PASSENGER AIRBAG ...

Page 90: ...TEST 13A REPAIRING PASSENGER SQUIB CIRCUIT SHORTED Perform TEST 1A Before Proceeding FIG 1 A I R B A G S Y S T E M 80 ...

Page 91: ... NO CONNECT THE AIRBAG MODULE SQUIB DISCONNECTING IN COMPLETELY MODULE HARNESS NEXT STEP CONNECTED CONNECTOR YES DISCONNECT THE USING AN OHMMETER PASSENGER AIRBAG MEASURE BETWEEN THE IS THE RESISTANCE NO REPLACE THE MODULE SQUIB PASSENGER AIRBAG BELOW 5 0 OHMS PASSENGER AIRBAG HARNESS LINE 1 AND LINE 2 MODULE CONNECTOR CKTS FIG 1 YES DISCONNECT THE ACM REPAIR PASSENGER 23 WAY HARNESS AIRBAG WIRING...

Page 92: ...TEST 14A REPAIRING PASSENGER SQUIB CIRCUIT SHORTED TO BATTERY Perform TEST 1A Before Proceeding FIG 1 A I R B A G S Y S T E M 82 ...

Page 93: ...DRB ENGINE OFF WITH THE DRB READ DISPLAY NO REPLACE THE THE ACTIVE CODES PASSENGER SQUIB PASSENGER AIRBAG RECONNECT THE CIRCUIT SHORTED TO MODULE BATTERY BATTERY YES WARNING DISCONNECT DISCONNECT THE THE BATTERY AND WAIT AIRBAG CONTROL 2 MINUTES BEFORE MODULE 23 WAY PROCEEDING HARNESS CONNECTOR TURN IGNITION ON USING A VOLTMETER REPAIR THE PASSENGER MEASURE THE IS THE VOLTAGE YES AIRBAG LINE 1 PAS...

Page 94: ...TEST 15A REPAIRING PASSENGER SQUIB CIRCUIT SHORTED TO GROUND Perform TEST 1A Before Proceeding FIG 1 A I R B A G S Y S T E M 84 ...

Page 95: ... DRB RECONNECT THE WITH THE DRB READ DISPLAY NO REPLACE THE BATTERY THE ACTIVE CODES PASSENGER SQUIB PASSENGER AIRBAG CIRCUIT SHORTED TO MODULE GROUND YES WARNING DISCONNECT DISCONNECT THE THE BATTERY AND WAIT AIRBAG CONTROL 2 MINUTES BEFORE MODULE 23 WAY PROCEEDING HARNESS CONNECTOR USING AN OHMMETER REPAIR THE PASSENGER RECONNECT THE MEASURE BETWEEN THE IS THE RESISTANCE YES AIRBAG LINE 1 BATTER...

Page 96: ...TEST 16A REPAIRING POWER STAGE NOT TESTED Perform TEST 1A Before Proceeding A I R B A G S Y S T E M 86 ...

Page 97: ...GNITION AIRBAG CODE SHOULD OFF AND ON START TEST 16A BE REPAIRED BEFORE WAIT 2 MINUTES PROCEEDING WITH BEFORE PROCEEDING THIS CODE TO VERIFY THAT IS USING THE DRB POWER STAGE NOT POWER STAGE NOT NO PERFORM TEST READ ACTIVE TESTED CODE IS TESTED 1A CODES ACTIVE CODE PRESENT YES ARE ANY OTHER YES PERFORM TEST ACTIVE CODES 1A PRESENT NO PERFORM TEST 19A A I R B A G S Y S T E M 87 ...

Page 98: ...TEST 17A REPAIRING WARNING LAMP OPEN SHORTED Perform TEST 1A Before Proceeding A I R B A G S Y S T E M 88 ...

Page 99: ...ATION CLUSTER MIC THE MIC TEST 1A NO WITH THE DRB DOES THE DRB SELECT PASSIVE USING THE DRB DISPLAY NO REPLACE THE RESTRAINTS READ THE WARNING MIC BULB STATE INSTRUMENT AIRBAG AND LAMP STATUS OK CLUSTER MONITOR DISPLAY YES DOES THE DRB DISPLAY NO REPLACE THE MIC DRIVER STATE INSTRUMENT OK CLUSTER YES TURN IGNITION OFF DID THE AIRBAG OBSERVE THE AIRBAG WAIT 5 MIN WARNING LAMP COME YES PERFORM TEST ...

Page 100: ...TEST 18A REPAIRING STORED TROUBLE CODES Perform TEST 1A Before Proceeding A I R B A G S Y S T E M 90 ...

Page 101: ...system Refer to General Information Section 4 0 for system component location and connector pinouts 2 If a stored trouble code becomes active perform TEST 1A 3 If a stored code is reproducible Repair or replace the wiring harness Repair or replace the harness connector or terminals Replace the component as necessary Refer to the specific diagnostic tests for trouble code set parameters and possibl...

Page 102: ...TEST 19A AIRBAG CONTROL MODULE REPLACEMENT PROCEDURE Perform TEST 1A Before Proceeding A I R B A G S Y S T E M 92 ...

Page 103: ...s necessary WARNING MAKE SURE THE BATTERY IS START TEST 19A DISCONNECTED AND WAIT 2 MINUTES BEFORE PROCEEDING WARNING IF THE REFER TO SECTION AIRBAG CONTROL 8M OF THE FOR REPLACEMENT OF REPLACE THE AIRBAG MODULE IS DROPPED APPROPRIATE THE AIRBAG CONTROL CONTROL MODULE AT ANY TIME IT SERVICE MANUAL MODULE ACM MUST BE REPLACED A I R B A G S Y S T E M 93 ...

Page 104: ...TEST 1A IDENTIFYING RADIO PCI BUS PROBLEMS Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding MIDLINE SYSTEM PREMIUM SYSTEM PREMIUM 2 SYSTEM A U D I O S Y S T E M S 94 ...

Page 105: ...uble codes perform TEST 1B 2 If any of the following radio failures exist exchange the radio AM FM Switch Inoperative Balance Dial Inoperative CD Eject Switch Inoperative Fader Dial Inoperative FF RW Switch Inoperative Hour Minute Switch Inoperative PWR Switch Inoperative Pause Play Switch Inoperative Scan Switch Inoperative Seek Switch Inoperative Set Switch Inoperative Tape Eject Switch Inoperat...

Page 106: ...TEST 1B IDENTIFYING RADIO PCI BUS DIAGNOSTIC TROUBLE CODES DTC s Perform TEST 1A Before Proceeding MIDLINE SYSTEM PREMIUM SYSTEM PREMIUM 2 SYSTEM A U D I O S Y S T E M S 96 ...

Page 107: ...parately or in various combinations When diagnosing a radio with trouble codes perform the indicated action or test make the required repairs and verify that the problem has been corrected DIAGNOSTIC TROUBLE CODE DTC DISPLAYED PERFORM Radio Error Replace the Radio CD Error Replace the Radio CAS Error Replace the Radio Shorted Front Channel TEST 1C Shorted Rear Channel TEST 1D Shorted Left Channel ...

Page 108: ...TEST 1C REPAIRING SHORTED FRONT CHANNEL Perform TEST 1A Before Proceeding FIG 1 FIG 2 A U D I O S Y S T E M S 98 ...

Page 109: ... 0 1K CIRCUIT FOR A RADIO C1 HARNESS SPEAKER OHMS SHORT TO GROUND CONNECTOR CIRCUIT FIG 1 NO USING AN OHMMETER REPAIR THE RF MEASURE BETWEEN IS THE RESISTANCE YES SPEAKER GROUND AND THE RF BELOW 1000 0 1K CIRCUIT FOR A SPEAKER OHMS SHORT TO GROUND CIRCUIT FIG 1 NO USING AN OHMMETER REPAIR THE LF DISCONNECT THE MEASURE BETWEEN IS THE RESISTANCE YES SPEAKER RADIO C2 HARNESS GROUND AND THE LF BELOW 1...

Page 110: ...TEST 1C CONTINUED REPAIRING SHORTED FRONT CHANNEL FIG 1 FIG 2 A U D I O S Y S T E M S 100 ...

Page 111: ...THE RF RF SPEAKER CKT BELOW 1000 0 1K SPEAKER CIRCUITS AND THE RF SPEAKER OHMS SHORTED TOGETHER CKT FIG 1 2 NO USING AN OHMMETER AND THE RF SPEAKER IS THE RESISTANCE REPAIR THE LF MEASURE BETWEEN AND BELOW 1000 0 1K YES SPEAKER THE LF SPEAKER CIRCUITS OHMS ON EITHER CIRCUIT SHORTED TO CKT MEASUREMENT EITHER RF SPEAKER FIG 1 2 CIRCUITS NO USING AN OHMMETER AND THE RF SPEAKER IS THE RESISTANCE REPAI...

Page 112: ...TEST 1D REPAIRING SHORTED REAR CHANNEL Perform TEST 1A Before Proceeding FIG 1 A U D I O S Y S T E M S 102 ...

Page 113: ...D THE LR BELOW 1000 0 1K CIRCUIT FOR A RADIO C1 HARNESS SPEAKER OHMS SHORT TO GROUND CONNECTOR CIRCUIT FIG 1 NO USING AN OHMMETER REPAIR THE RR MEASURE BETWEEN IS THE RESISTANCE YES SPEAKER GROUND AND THE RR BELOW 1000 0 1K CIRCUIT FOR A SPEAKER OHMS SHORT TO GROUND CIRCUIT FIG 1 NO USING AN OHMMETER REPAIR THE LR MEASURE BETWEEN IS THE RESISTANCE YES SPEAKER GROUND AND THE LR BELOW 1000 0 1K CIRC...

Page 114: ...TEST 1D CONTINUED REPAIRING SHORTED REAR CHANNEL FIG 1 A U D I O S Y S T E M S 104 ...

Page 115: ... THE RR RR SPEAKER CKT BELOW 1000 0 1K SPEAKER CIRCUITS AND THE RR SPEAKER OHMS SHORTED TOGETHER CKT FIG 1 NO USING AN OHMMETER AND THE RR SPEAKER IS THE RESISTANCE REPAIR THE LR MEASURE BETWEEN AND BELOW 1000 0 1K YES SPEAKER THE LR SPEAKER CIRCUITS OHMS ON EITHER CIRCUIT SHORTED TO CKT MEASUREMENT EITHER RR SPEAKER FIG 1 CIRCUITS NO USING AN OHMMETER AND THE RR SPEAKER IS THE RESISTANCE REPAIR T...

Page 116: ...TEST 1E REPAIRING SHORTED LEFT CHANNEL Perform TEST 1A Before Proceeding FIG 1 FIG 2 A U D I O S Y S T E M S 106 ...

Page 117: ... 1K CIRCUIT FOR A RADIO C1 HARNESS SPEAKER OHMS SHORT TO GROUND CONNECTOR CIRCUIT FIG 1 NO USING AN OHMMETER REPAIR THE LR MEASURE BETWEEN IS THE RESISTANCE YES SPEAKER GROUND AND THE LR BELOW 1000 0 1K CIRCUIT FOR A SPEAKER OHMS SHORT TO GROUND CIRCUIT FIG 1 NO USING AN OHMMETER REPAIR THE LR MEASURE BETWEEN IS THE RESISTANCE YES SPEAKER GROUND AND THE LR BELOW 1000 0 1K CIRCUIT FOR A SPEAKER OHM...

Page 118: ...TEST 1E CONTINUED REPAIRING SHORTED LEFT CHANNEL FIG 1 FIG 2 A U D I O S Y S T E M S 108 ...

Page 119: ... THE LR LR SPEAKER CKT BELOW 1000 0 1K SPEAKER CIRCUITS AND THE LR SPEAKER OHMS SHORTED TOGETHER CKT FIG 1 NO USING AN OHMMETER AND THE LR SPEAKER IS THE RESISTANCE REPAIR THE LF MEASURE BETWEEN AND BELOW 1000 0 1K YES SPEAKER THE LF SPEAKER CIRCUITS OHMS ON EITHER CIRCUIT SHORTED TO CKT MEASUREMENT EITHER LR SPEAKER FIG 1 CIRCUITS NO USING AN OHMMETER AND THE LR SPEAKER IS THE RESISTANCE REPAIR T...

Page 120: ...TEST 1F REPAIRING SHORTED RIGHT CHANNEL Perform TEST 1A Before Proceeding FIG 1 FIG 2 A U D I O S Y S T E M S 110 ...

Page 121: ...0 1K CIRCUIT FOR A RADIO C1 HARNESS SPEAKER OHMS SHORT TO GROUND CONNECTOR CIRCUIT FIG 1 NO USING AN OHMMETER REPAIR THE RR MEASURE BETWEEN IS THE RESISTANCE YES SPEAKER GROUND AND THE RR BELOW 1000 0 1K CIRCUIT FOR A SPEAKER OHMS SHORT TO GROUND CIRCUIT FIG 1 NO USING AN OHMMETER REPAIR THE RR MEASURE BETWEEN IS THE RESISTANCE YES SPEAKER GROUND AND THE RR BELOW 1000 0 1K CIRCUIT FOR A SPEAKER OH...

Page 122: ...TEST 1F CONTINUED REPAIRING SHORTED RIGHT CHANNEL FIG 1 FIG 2 A U D I O S Y S T E M S 112 ...

Page 123: ...R THE RR RR SPEAKER CKT BELOW 1000 0 1K SPEAKER CIRCUITS AND THE RR SPEAKER OHMS SHORTED TOGETHER CKT FIG 1 NO USING AN OHMMETER AND THE RR SPEAKER IS THE RESISTANCE REPAIR THE RF MEASURE BETWEEN AND BELOW 1000 0 1K YES SPEAKER THE RF SPEAKER CIRCUITS OHMS ON EITHER CIRCUIT SHORTED TO CKT MEASUREMENT EITHER RR SPEAKER FIG 1 CIRCUITS NO USING AN OHMMETER AND THE RR SPEAKER IS THE RESISTANCE REPAIR ...

Page 124: ...TEST 1A IDENTIFYING AUTOMATIC TEMPERATURE CONTROL PROBLEMS Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 114 ...

Page 125: ...munication TEST 14A 3 With the DRB select Body System Body Computer Read DTCs If any climate related codes are present perform TEST 1B 4 With the DRB select Body System Auto Temp Ctrl If the DRB shows No Response perform Vehicle Communication TEST 1A PROBLEM WITH No Trouble Codes PERFORM A C Clutch Operations TEST 14A Blend Door Inoperative TEST 15A Blower Motor Inoperative TEST 16A Blower Speeds ...

Page 126: ...TEST 1B IDENTIFYING CLIMATE CONTROL TROUBLE CODES Perform TEST 1A Before Proceeding NOTES A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 116 ...

Page 127: ... If a short to battery code is set all 4 Output Shorted to Battery codes will appear It will then be necessary to isolate each circuit to determine which circuit is at fault 4 If no codes are seen observe the climate system performance then continue TEST 1A DIAGNOSTIC TROUBLE CODE DTC PERFORM Ambient Temperature Sensor Failure OTIS Test 2A ATC Messages Not Received Vehicle Communication Test 3A AT...

Page 128: ...TEST 2A REPAIRING AUTOMATIC TEMPERATURE CONTROL HEAD SWITCHES Perform TEST 1B Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 118 ...

Page 129: ...LECT REPLACE THE BODY COMPUTER WITH THE DRB READ DOES THE DRB NO AUTOMATIC AUTOMATIC TEMP THE INOPERATIVE DISPLAY SWITCH TEMPERATURE CONTROL THEN ATC SWITCH OPEN CONTROL HEAD INPUT OUTPUTS YES REPLACE THE PUSH AND HOLD THE WITH THE DRB READ DOES THE DRB YES AUTOMATIC INOPERATIVE SWITCH THE INOPERATIVE DISPLAY SWITCH TEMPERATURE ON THE ATC HEAD ATC SWITCH OPEN CONTROL HEAD NO THE SWITCH IS OPERATIN...

Page 130: ...TEST 3A REPAIRING BLEND DOOR FEEDBACK STALL TEST FAILURE TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 FIG 2 FIG 3 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 120 ...

Page 131: ...NCE YES SUPPLY CIRCUIT FOR CONTROL MODULE C1 GROUND AND THE BELOW 5 0 OHMS A SHORT TO C2 HARNESS 5 VOLT SUPPLY CKT GROUND CONNECTORS FIG 1 FIG 2 NO MEASURE THE USE AN OHMMETER IN RESISTANCE BETWEEN IS THE RESISTANCE NO REPLACE THE BODY THE FOLLOWING THE 5 VOLT SUPPLY BELOW 2000 0 OHMS CONTROL MODULE STEPS CKT AND THE SENSOR GROUND CKT FIG 3 YES DISCONNECT THE MEASURE THE BLEND DOOR RESISTANCE BETW...

Page 132: ...TEST 3A CONTINUED REPAIRING BLEND DOOR FEEDBACK STALL TEST FAILURE TROUBLE CODE FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 122 ...

Page 133: ... 3A ON THE NEXT PAGE NO KEY OFF MEASURE THE REPAIR THE BLEND USE AN OHMMETER IN RESISTANCE BETWEEN IS THE RESISTANCE YES DOOR FEEDBACK THE FOLLOWING GROUND AND THE BLEND BELOW 5 0 OHMS SIGNAL CIRCUIT FOR STEPS DOOR FEEDBACK SIGNAL A SHORT TO CKT FIG 1 GROUND NO MEASURE THE AND THE BLEND DOOR REPAIR THE BLEND RESISTANCE BETWEEN FEEDBACK SIGNAL IS THE REISISTANCE YES DOOR FEEDBACK SIGNAL THE SENSOR ...

Page 134: ...TEST 3A CONTINUED REPAIRING BLEND DOOR FEEDBACK STALL TEST FAILURE TROUBLE CODE FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 124 ...

Page 135: ... TEST LIGHT DID THE TEST LIGHT LIGHT WHILE PRESSING SHOULD FLASH WHILE FLASH BETWEEN 67 NO CONTINUE TEST TURNING THE TEMP IN THE 67 TO 81 AND 81 DEGREES 3A ON THE NEXT SWITCH TO THE FULL DEGREEE RANGE APPROXIMATELY 5 PAGE HOT HI POSTION ATC DISPLAY RANGE SECONDS FOR MTC YES CONNECT A TEST WITH THE LIGHT BETWEEN THE TEMPERATURE IN THE COMMON DOOR DRIVER FULL HOT HI CIRCUIT AND POSTION GROUND FIG 1 ...

Page 136: ...TEST 3A CONTINUED REPAIRING BLEND DOOR FEEDBACK STALL TEST FAILURE TROUBLE CODE FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 126 ...

Page 137: ...HE PREVIOUS BODY CONTROL PAGE MODULE C1 HARNESS CONNECTOR WITH AN OHMMETER BETWEEN THE BCM REPAIR THE OPEN MEASURE THE DRIVER AND THE BLEND DOOR IS THE RESISTANCE NO DRIVER CIRCUIT CIRCUIT THAT DID ACTUATOR BELOW 5 0 OHMS BETWEEN THE BLEND NOT LIGHT THE TEST DOOR ACTUATOR AND LIGHT FIGS 1 2 THE BCM YES REPLACE THE BODY CONTROL MODULE A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E ...

Page 138: ...TEST 4A REPAIRING BLEND DOOR OUTPUT SHORTED TO GROUND TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 128 ...

Page 139: ...S GROUND AND THE BELOW 5 0 OHMS CIRCUIT FOR A CONNECTOR BLEND DOOR DRIVER SHORT TO GROUND CIRCUIT FIG 1 NO WITH AN OHMMETER MEASURE BETWEEN THE IS THE RESISTANCE NO REPLACE THE BODY SENSOR GROUND CKT BELOW 5 0 OHMS CONTROL MODULE AND THE BLEND DOOR DRIVER CKT FIG 1 YES DISCONNECT THE WITH AN OHMMETER BLEND DOOR MEASURE BETWEEN THE IS THE RESISTANCE NO REPLACE THE BLEND ACTUATOR HARNESS SENSOR GROU...

Page 140: ...TEST 5A REPAIRING BLEND MODE RECIRC DOOR OR COMMON OUTPUT SHORTED TO BATTERY TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 130 ...

Page 141: ...METER IN DOOR DRIVER CIRCUIT IS THE VOLTAGE YES DOOR DRIVER THE FOLLOWING ABOVE 10 0 VOLTS CIRCUIT FOR A STEPS SHORT TO BATTERY FIG 1 NO MEASURE THE REPAIR THE RECIRCULATION DOOR IS THE VOLTAGE YES RECIRCULATION DOOR DRIVER CIRCUIT ABOVE 10 0 VOLTS DRIVER CIRCUIT FOR A SHORT TO FIG 1 BATTERY NO MEASURE THE COMMON REPAIR THE COMMON DOOR DRIVER CIRCUIT IS THE VOLTAGE YES DOOR DRIVER ABOVE 10 0 VOLTS...

Page 142: ...TEST 5A CONTINUED REPAIRING BLEND MODE RECIRC DOOR OR COMMON OUTPUT SHORTED TO BATTERY TROUBLE CODE FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 132 ...

Page 143: ...ODE DOOR PAGE DRIVER CKT AND THE OTHER DOOR DRIVER IS THE RESISTANCE CIRCUITS CAVITIES BELOW 5 0 OHMS ON YES PERFORM TEST 2 AND 10 ANY OF THE OTHER 5B DRIVER CIRCUITS FIG 1 NO USING AN OHMMETER COMMON DOOR DRIVER MEASURE BETWEEN CIRCUIT CAVITY 10 IS THE RESISTANCE YES PERFORM TEST THE RECIRCULATION BELOW 5 0 OHMS 5B DOOR DRIVER CKT AND THE FIG 1 NO REPLACE THE BODY CONTROL MODULE A U T O M A T I C...

Page 144: ...TEST 5B REPAIRING BLEND MODE RECIRC DOOR OR COMMON OUTPUT SHORTED TO BATTERY TROUBLE CODE Perform TEST 5A Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 134 ...

Page 145: ...CIRCUIT AND DRIVER CIRCUITS THE FIG 1 YES DISCONNECT THE MEASURE THE BLEND DOOR RESISTANCE BETWEEN ACTUATOR HARNESS THE BLEND DOOR CONNECTOR DRIVER CIRCUIT AND THE OTHER DOOR DRIVER IS THE RESISTANCE CIRCUITS CAVITIES BELOW 5 0 OHMS ON NO REPLACE THE BLEND 2 9 AND 10 ANY OF THE OTHER DOOR ACTUATOR DRIVER CIRCUITS FIG 1 YES DISCONNECT THE MEASURE THE RECIRCULATION DOOR RESISTANCE BETWEEN ACTUATOR H...

Page 146: ...TEST 6A REPAIRING COMMON OUTPUT SHORTED TO GROUND TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 136 ...

Page 147: ...EASURE BETWEEN THE IS THE RESISTANCE NO REPLACE THE BODY SENSOR GROUND CKT BELOW 5 0 OHMS CONTROL MODULE AND THE COMMON DOOR DRIVER CKT FIG 1 YES DISCONNECT THE LEAVE THE OHMMETER BLEND DOOR IS THE RESISTANCE NO REPLACE THE BLEND CONNECTED FOR THE ACTUATOR HARNESS STILL BELOW 5 0 DOOR ACTUATOR FOLLOWING STEPS CONNECTOR OHMS YES DISCONNECT THE MODE DOOR ACTUATOR IS THE RESISTANCE NO REPLACE THE MOD...

Page 148: ...TEST 7A REPAIRING EVAPORATOR TEMPERATURE SENSOR FAILURE TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 138 ...

Page 149: ...JUMPER WITH THE DRB READ REPLACE THE WIRE BETWEEN THE THE EVAPORATOR IS THE VOLTAGE NO EVAPORATOR EVAP TEMP SENSOR TEMPERATURE SENSOR ABOVE 4 9 VOLTS TEMPERATURE SIGNAL SENSOR VOLTAGE SENSOR GND CKTS FIG 1 YES CONNECT A JUMPER WITH THE DRB READ WIRE BETWEEN THE THE EVAPORATOR IS THE VOLTAGE NO REPAIR THE OPEN EVAP TEMP SENSOR TEMPERATURE SENSOR ABOVE 4 9 VOLTS GROUND CIRCUIT SIGNAL CKT AND VOLTAGE...

Page 150: ...TEST 7A CONTINUED REPAIRING EVAPORATOR TEMPERATURE SENSOR FAILURE TROUBLE CODE FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 140 ...

Page 151: ...DISCONNECT USING AN OHMMETER REPAIR THE THE BODY CONTROL MEASURE BETWEEN IS THE RESISTANCE YES EVAPORATOR MODULE C2 HARNESS GROUND THE EVAP BELOW 5 0 OHMS TEMPERATURE SENSOR CONNECTOR TEMP SENSOR SIGNAL SIGNAL CIRCUIT FOR A SEE GENERAL INFO 4 0 CKT FIG 1 SHORT TO GROUND NO WITH AN OHMMETER TEMPERATURE SENSOR REPAIR THE EVAP TEMP MEASURE BETWEEN SIGNAL CIRCUIT IS THE RESISTANCE YES SENSOR SIGNAL TH...

Page 152: ...TEST 7A CONTINUED REPAIRING EVAPORATOR TEMPERATURE SENSOR FAILURE TROUBLE CODE A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 142 ...

Page 153: ...Y WITH THE DRB READ TEMPERATURE SENSOR YES EVAPORATOR COMPUTER TROUBLE THE BODY COMPUTER TROUBLE CODE TEMPERATURE CODES TROUBLE CODES RETURN SENSOR NO TURN THE A C SYSTEM ON FOR 5 MINUTES SO START THE ENGINE WATER WILL FORM ON THE EVAPORATOR TEMPERATURE SENSOR DID THE EVAPORATOR REPLACE THE WITH THE DRB READ TEMPERATURE SENSOR YES EVAPORATOR THE BODY COMPUTER TROUBLE CODE TEMPERATURE TROUBLE CODES...

Page 154: ...EST 8A REPAIRING ATC ASPIRATOR OR IN CAR TEMPERATURE SENSOR FAILURE TROUBLE CODE Perform TEST 1B OR 1A Before Proceeding FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 144 ...

Page 155: ...R YES KEY OFF STAY IN THE WAIT 3 MINUTES DOES THE ASPIRATOR VEHICLE AND CLOSE OPEN AND CLOSE THE MOTOR RUN FOR APPROX NO PERFORM TEST ALL DOORS AND ENSURE LEFT FRONT DOOR 30 SECONDS AFTER THE 8D COURTESY LAMPS ARE AND OBSERVE THE COURTESY LAMPS HAVE OFF ASPIRATOR MOTOR DIMMED OUT YES DISCONNECT THE ATC USING A VOLTMETER REPAIR THE IN CAR CONTROL MODULE MEASURE THE IN CAR IS THE VOLTAGE YES TEMP SE...

Page 156: ...TEST 8A CONTINUED REPAIRING ATC ASPIRATOR OR IN CAR TEMPERATURE SENSOR FAILURE TROUBLE CODE FIG 1 FIG 2 FIG 3 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 146 ...

Page 157: ... CAR TEMP SENSOR A SHORT TO SIGNAL CKT FIG 1 GROUND NO USING AN OHMMETER AND THE IN CAR REPAIR THE IN CAR MEASURE BETWEEN TEMP SENSOR SIGNAL IS THE RESISTANCE YES TEMP SENSOR SIGNAL THE SENSOR GROUND CIRCUIT BELOW 5 0 OHMS CIRCUIT FOR A SHORT CIRCUIT TO THE SENSOR GROUND FIG 2 CIRCUIT NO USING A VOLTMETER BACKPROBE THE RECONNECT THE BCM IN CAR TEMP SENSOR C2 HARNESS SIGNAL CIRCUIT CONNECTOR FIG 3 ...

Page 158: ...TEST 8B REPAIRING ATC ASPIRATOR OR IN CAR TEMPERATURE SENSOR FAILURE TROUBLE CODE Perform TEST 8A Before Proceeding FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 148 ...

Page 159: ...S CONTINUE TEST MINUTE MAKE SURE GROUND THE SENSOR BELOW 10 0 OHMS 8B ON THE NEXT THE COURTESY LAMPS GROUND CIRCUIT PAGE ARE OFF FIG 1 NO DISCONNECT THE BODY USING AN OHMMETER CONTROL MODULE C1 BACKPROBE THE HARNESS CONNECTOR SENSOR GROUND CKT AT BCM C1 CONN SEE GENERAL INFO 4 0 FIG 2 RECONNECT THE BCM C1 HARNESS CONNECTOR CONNECT THE OTHER IS THE RESISTANCE YES REPAIR THE OPEN OHMMETER LEAD TO BE...

Page 160: ...TEST 8B CONTINUED REPAIRING ATC ASPIRATOR OR IN CAR TEMPERATURE SENSOR FAILURE TROUBLE CODE A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 150 ...

Page 161: ...AGE HARNESS CONNECTOR USING THE DRB TURN IGNITION ON ERASE THE BODY ENGINE OFF COMPUTER TROUBLE CODES WAIT 15 SECONDS DOES THE DRB WITH THE DRB READ DISPLAY YES REPLACE THE IN CAR THE BODY COMPUTER IN CAR TEMP TEMPERATURE TROUBLE CODES SENSOR FAILURE SENSOR NO DOES THE DRB YES PERFORM TEST DISPLAY ANY OTHER 1B FAULTS NO THE SYSTEM IS OPERATIONAL WITH NO TROUBLE FOUND A U T O M A T I C T E M P E R ...

Page 162: ...TEST 8C REPAIRING ATC ASPIRATOR MOTOR Perform TEST 8A Before Proceeding FIG 1 FIG 2 FIG 3 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 152 ...

Page 163: ...ES MOTOR DRIVER CKT FOR ASPIRATOR MOTOR ABOVE 10 0 VOLTS A SHORT TO BATTERY DRIVER CKT IF OK REPLACE THE FIG 1 BCM NO KEY OFF USING AN OHMMETER DISCONNECT THE MEASURE ASPIRATOR IS THE RESISTANCE NO REPAIR THE OPEN BODY CONTROL MOTOR DR CKT BETWEEN BELOW 5 0 OHMS ASPIRATOR MOTOR MODULE C2 HARNESS BCM ATC HARNESS DRIVER CIRCUIT CONNECTOR CONNS FIG 2 YES CONNECT A JUMPER RECONNECT THE ATC WIRE BETWEE...

Page 164: ...TEST 8D REPAIRING ATC ASPIRATOR MOTOR Perform TEST 8A Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 154 ...

Page 165: ... C1 DID THE ASPIRATOR NO ASPIRATOR MOTOR CONTINUING TO RUN HARNESS CONNECTOR MOTOR STOP DRIVER CIRCUIT FOR WITH IGN KEY OFF RUNNING A SHORT TO AND DOORS CLOSED SEE GENERAL INFO 4 0 GROUND YES WITH AN OHMMETER REPAIR THE ASPIRATOR DISCONNECT THE ATC MEASURE BETWEEN THE IS THE RESISTANCE YES MOTOR DRIVER CKT FOR HARNESS SENSOR GROUND CKT BELOW 5 0 OHMS A SHORT TO THE CONNECTOR AND THE ASPIRATOR SENS...

Page 166: ...TEST 9A REPAIRING MODE DOOR STALL FEEDBACK FAILURE TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 FIG 2 FIG 3 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 156 ...

Page 167: ... IS THE RESISTANCE YES SUPPLY CIRCUIT FOR MODULE C1 C2 GROUND AND THE BELOW 5 0 OHMS A SHORT TO HARNESS 5 VOLT SUPPLY CKT GROUND CONNECTORS FIG 1 FIG 2 NO MEASURE THE USE AN OHMMETER IN RESISTANCE BETWEEN IS THE RESISTANCE NO REPLACE THE BODY THE FOLLOWING THE 5 VOLT SUPPLY BELOW 2000 0 OHMS CONTROL MODULE STEPS CKT AND SENSOR GROUND CKT FIG 3 YES DISCONNECT THE MEASURE THE MODE DOOR ACTUATOR RESI...

Page 168: ...TEST 9A CONTINUED REPAIRING MODE DOOR STALL FEEDBACK FAILURE TROUBLE CODE FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 158 ...

Page 169: ...ON THE NEXT PAGE NO KEY OFF MEASURE THE REPAIR THE MODE USE AN OHMMETER IN RESISTANCE BETWEEN IS THE RESISTANCE YES DOOR FEEDBACK THE FOLLOWING GROUND AND THE BELOW 5 0 OHMS SIGNAL CIRCUIT FOR STEPS MODE DOOR FEEDBACK A SHORT TO SIGNAL CKT FIG 1 GROUND NO MEASURE THE AND THE MODE DOOR REPAIR THE MODE DOOR RESISTANCE BETWEEN FEEDBACK SIGNAL IS THE RESISTANCE YES FEEDBACK SIGNAL CKT THE SENSOR GROUN...

Page 170: ...TEST 9A CONTINUED REPAIRING MODE DOOR STALL FEEDBACK FAILURE TROUBLE CODE FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 160 ...

Page 171: ...CUIT FIG 1 YES WITH THE DRB DISCONNECT THE BCM COMMON DOOR DRIVER ERASE ALL BODY C1 HARNESS CIRCUIT RECONNECT THE BCM COMPUTER TROUBLE CONNECTOR C1 HARNESS CODES USING A TEST LIGHT CONNECTOR BACKPROBE THE FIG 2 TURN IGNITION ON OBSERVE THE TEST ENGINE OFF LIGHT NOTE WAIT 10 TURN RECIRC SW OFF DID THE TEST LIGHT SECONDS BETWEEN TURN PANEL SW ON ILLUMINATE FOR YES CONTINUE TEST SWITCHING THE TURN RE...

Page 172: ...TEST 9A CONTINUED REPAIRING MODE DOOR STALL FEEDBACK FAILURE TROUBLE CODE FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 162 ...

Page 173: ...ILLUMINATE FOR YES CONTINUE TEST CIRCUIT BI LEVEL SWITCHES APPROXIMATELY 5 9A ON THE NEXT ON CONTROL HEAD SECONDS PAGE NO KEY OFF DISCONNECT RECONNECT THE BCM NOTE WAIT 10 THE BCM C1 HARNESS C1 HARNESS SECONDS BETWEEN CONN WITH A TEST CONNECTOR SWITCHING THE LIGHT BACKPROBE THE TURN IGNITION ON SWITCHES MODE DOOR DR CKT FIG 2 PUSH TURN PANEL DID THE TEST LIGHT WHILE BACKPROBING THEN DEFROST THEN I...

Page 174: ...TEST 9A CONTINUED REPAIRING MODE DOOR STALL FEEDBACK FAILURE TROUBLE CODE FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 164 ...

Page 175: ... THE PREVIOUS BODY CONTROL PAGE MODULE C1 HARNESS CONNECTOR DISCONNECT THE MODE DOOR ACTUATOR USING AN OHMMETER HARNESS MEASURE THE COMMON CONNECTOR DOOR DRIVER CKT BETWEEN THE BCM AND THE MODE DOOR IS THE RESISTANCE NO REPAIR THE OPEN ACTUATOR BELOW 5 0 OHMS COMMON DOOR DRIVER CIRCUIT FIG 1 YES REPLACE THE MODE DOOR ACTUATOR A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 165 ...

Page 176: ...TEST 10A REPAIRING MODE DOOR OUTPUT SHORTED TO GROUND TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 166 ...

Page 177: ...ESS GROUND AND THE BELOW 5 0 OHMS CIRCUIT FOR A CONNECTOR MODE DOOR DRIVER SHORT TO GROUND CIRCUIT FIG 1 NO WITH AN OHMMETER MEASURE BETWEEN THE IS THE RESISTANCE NO REPLACE THE BODY SENSOR GROUND CKT BELOW 5 0 OHMS CONTROL MODULE AND THE MODE DOOR DRIVER CKT FIG 1 YES DISCONNECT THE WITH AN OHMMETER MODE DOOR ACTUATOR MEASURE BETWEEN THE IS THE RESISTANCE NO REPLACE THE MODE HARNESS SENSOR GROUND...

Page 178: ...TEST 11A REPAIRING RECIRC DOOR OUTPUT SHORTED TO GROUND TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 168 ...

Page 179: ...ENTS AND ENSURE THE START TEST 11A COURTESY LAMPS ARE OFF SEE GENERAL INFO 4 0 DISCONNECT THE WITH AN OHMMETER BODY CONTROL MEASURE BETWEEN IS THE RESISTANCE NO REPLACE THE BODY MODULE C1 HARNESS GROUND AND THE BELOW 5 0 OHMS CONTROL MODULE CONNECTOR RECIRCULATION DOOR DRIVER CKT FIG 1 YES REPAIR THE RECIRCULATION DOOR DRIVER CIRCUIT FOR A SHORT TO GROUND A U T O M A T I C T E M P E R A T U R E C ...

Page 180: ...TEST 12A REPAIRING RECIRCULATION DOOR TEST FAILURE TROUBLE CODE INOPERATIVE OR STALL Perform TEST 1B Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 170 ...

Page 181: ...OOR BETWEEN GROUND AND ACTUATOR HARNESS THE COMMON DOOR CONNECTOR DRIVER CKT TURN IGNITION ON FIG 1 TURN THE DID THE TEST LIGHT RECIRCULATE SWITCH ILLUMINATE FOR NO PERFORM TEST ON AND MONITOR THE APPROXIMATELY 6 12B TEST LIGHT SECONDS YES CONNECT A TEST LIGHT TURN THE DID THE TEST LIGHT BETWEEN GROUND AND RECIRCULATE SWITCH ILLUMINATE FOR NO PERFORM TEST THE RECIRCULATION OFF AND MONITOR APPROXIM...

Page 182: ...TEST 12B REPAIRING RECIRCULATION DOOR TEST FAILURE TROUBLE CODE INOPERATIVE OR STALL Perform TEST 12A Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 172 ...

Page 183: ... MODULE C1 HARNESS CODES CONNECTOR SEE GENERAL INFO 4 0 BACKPROBE A TEST RECONNECT THE BCM LIGHT BETWEEN GROUND C1 HARNESS AND THE COMMON DOOR CONNECTOR DRIVER CKT TURN IGNITION ON FIG 1 FIG 1 TURN THE DID THE TEST LIGHT TURN THE RECIRCULATE SWITCH ILLUMINATE FOR NO REPLACE THE BODY RECIRCULATE SWITCH ON AND MONITOR THE APPROXIMATELY 6 CONTROL MODULE OFF TEST LIGHT SECONDS YES REPAIR THE OPEN COMM...

Page 184: ...TEST 12C REPAIRING RECIRCULATION DOOR TEST FAILURE TROUBLE CODE INOPERATIVE OR STALL Perform TEST 12A Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 174 ...

Page 185: ... C1 HARNESS CODES CONNECTOR SEE GENERAL INFO 4 0 BACKPROBE A TEST RECONNECT THE BCM LIGHT BETWEEN C1 HARNESS GROUND AND THE CONNECTOR RECIRCULATION DOOR TURN IGNITION ON DRIVER CKT FIG 1 FIG 1 TURN THE DID THE TEST LIGHT TURN THE RECIRCULATE SWITCH ILLUMINATE FOR NO REPLACE THE BODY RECIRCULATE SWITCH OFF AND MONITOR APPROXIMATELY 6 CONTROL MODULE ON THE TEST LIGHT SECONDS YES REPAIR THE OPEN RECI...

Page 186: ...TEST 13A REPAIRING SUN LOAD SENSOR FAILURE TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 176 ...

Page 187: ... CONNECTOR THE SUN SENSOR VOLTAGE YES DISCONNECT THE USING AN OHMMETER REPAIR THE SUN BODY CONTROL MEASURE BETWEEN IS THE RESISTANCE YES SENSOR SIGNAL MODULE C1 C2 GROUND AND THE SUN BELOW 60 0 OHMS CIRCUIT FOR A HARNESS SENSOR SIGNAL CKT SHORT TO GROUND CONNECTORS FIG 1 NO WITH AN OHMMETER REPAIR THE SUN MEASURE BETWEEN THE IS THE RESISTANCE YES SENSOR SIGNAL SENSOR GROUND CKT BELOW 5 0 OHMS CIRC...

Page 188: ...TEST 14A REPAIRING COMPRESSOR CLUTCH CIRCUIT Perform TEST 1A Before Proceeding NOTES A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 178 ...

Page 189: ...D PRESSED YES WITH THE DRB SELECT CLIMATE START THE ENGINE CONTROL SYSTEM TESTS A C ON TO BCM NOTE MAKE SURE NOTE LOOK FOR ON THE A C SWITCH IS OR OFF MESSAGE IN DOES THE DRB NO REPLACE THE BODY TURNED ON AT THIS THE FOLLOWING STEP DISPLAY CONTROL MODULE TIME DISREGARD NR A C BCM ON MESSAGE IF SEEN YES DOES THE DRB NO REPLACE THE DISPLAY POWERTRAIN CONTROL PCM ON MODULE YES REFER TO THE APPROPRIAT...

Page 190: ...TEST 15A REPAIRING INOPERATIVE TEMP BLEND AIR DOOR Perform TEST 1A Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 180 ...

Page 191: ...UIT AND THE FULL COLD LO GROUND FIG 1 POSITION MONITOR THE TEST NOTE THE TEST LIGHT DID THE TEST LIGHT LIGHT WHILE PRESSING SHOULD FLASH WHILE FLASH BETWEEN 67 NO CONTINUE TEST TURNING THE TEMP IN THE 67 TO 81 AND 81 DEGREES 15A ON THE NEXT SWITCH TO THE FULL DEGREE RANGE APPROXIMATELY 5 PAGE HOT HI POSITION ATC DISPLAY RANGE SECONDS FOR MTC YES CONNECT A TEST WITH THE LIGHT BETWEEN THE TEMPERATUR...

Page 192: ...TEST 15A CONTINUED REPAIRING INOPERATIVE TEMP BLEND AIR DOOR FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 182 ...

Page 193: ...US BODY CONTROL PAGE MODULE C1 HARNESS CONNECTOR WITH AN OHMMETER BETWEEN THE BCM REPAIR THE OPEN MEASURE THE DRIVER AND THE BLEND DOOR IS THE RESISTANCE NO DRIVER CIRCUIT CIRCUIT THAT DID ACTUATOR BELOW 5 0 OHMS BETWEEN THE BLEND NOT LIGHT THE TEST DOOR ACTUATOR AND LIGHT FIGS 1 2 THE BCM YES REPLACE THE BODY CONTROL MODULE A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 183 ...

Page 194: ...TEST 16A REPAIRING INOPERATIVE BLOWER MOTOR Perform TEST 1A Before Proceeding FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 184 ...

Page 195: ...ECTOR REPLACE FUSE 23 SEE GENERAL INFO 4 0 USE THE FOLLOWING CONNECT A JUMPER CONNECT A JUMPER STEPS TO CHECK FOR WIRE BETWEEN B WIRE BETWEEN GROUND PROPER BLOWER AND THE DG WIRE ON AND THE BLACK WIRE MOTOR OPERATION THE BLOWER MOTOR ON THE BLOWER MOTOR CONNECTOR CONNECTOR TURN THE IGNITION DID THE BLOWER ON FOR 10 SECONDS MOTOR OPERATE AT YES REPLACE THE ATC THEN TURN THE HIGH SPEED WITHOUT POWER...

Page 196: ...TEST 16A CONTINUED REPAIRING INOPERATIVE BLOWER MOTOR FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 186 ...

Page 197: ...TPUT CKT CIRCUIT SEE GENERAL INFO 4 0 FIG 2 YES KEY OFF USING AN OHMMETER IS THE RESISTANCE NO REPAIR THE OPEN MEASURE BETWEEN BELOW 5 0 OHMS GROUND CIRCUIT GROUND AND THE GROUND CKT FIG 2 YES USING AN OHMMETER REPAIR THE BLOWER MEASURE BETWEEN IS THE RESISTANCE YES MOTOR CONTROL GROUND AND THE BELOW 5 0 OHMS CIRCUIT FOR A SHORT BLOWER MOTOR CONTROL TO GROUND IF OK CKT FIG 2 REPLACE THE BCM NO DIS...

Page 198: ...TEST 16A CONTINUED REPAIRING INOPERATIVE BLOWER MOTOR A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 188 ...

Page 199: ...PERATION CONNECT A JUMPER TURN THE IGNITION WIRE BETWEEN B OFF AND THE DG WIRE ON THE BLOWER MOTOR CONNECTOR CONNECT A JUMPER TURN THE IGNITION WIRE BETWEEN GROUND ON FOR 10 SECONDS DID THE BLOWER YES REPLACE THE ATC AND THE BLACK WIRE THEN TURN THE MOTOR OPERATE AT POWER MODULE ON THE BLOWER MOTOR IGNITION OFF HIGH SPEED CONNECTOR NO REPLACE THE BLOWER MOTOR A U T O M A T I C T E M P E R A T U R ...

Page 200: ...TEST 17A REPAIRING INCORRECT BLOWER MOTOR SPEEDS Perform TEST 1A Before Proceeding FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 190 ...

Page 201: ...THE OK REPLACE THE SEE GENERAL INFO 4 0 J B INT CONN FIG 1 JUNCTION BLOCK YES USING AN OHMMETER REPAIR THE OPEN MEASURE BETWEEN GND IS THE RESISTANCE NO GROUND CIRCUIT TO AND THE GROUND CKT BELOW 5 0 OHMS JUNCTION BLOCK IF TERMINAL 1 IN THE OK REPLACE THE J B INT CONN FIG 1 JUNCTION BLOCK YES DISCONNECT THE ATC POWER MODULE 4 WAY TURN IGNITION ON HARNESS CONNECTOR ENGINE OFF SEE GENERAL INFO 4 0 U...

Page 202: ...TEST 17A CONTINUED REPAIRING INCORRECT BLOWER MOTOR SPEEDS FIG 1 FIG 2 FIG 3 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 192 ...

Page 203: ...UIT SPEED FIG 1 YES TURN IGNITION OFF DISCONNECT THE ATC POWER MODULE 4 WAY HARNESS REMOVE THE JUMPER CONNECTOR WIRE USING AN OHMMETER CONNECTOR AND THE MEASURE THE BLOWER BCM C2 HARNESS IS THE RESISTANCE NO REPAIR THE OPEN MOTOR CONTROL CONNECTOR BELOW 5 0 OHMS BLOWER MOTOR CIRCUIT BETWEEN THE CONTROL CIRCUIT POWER MODULE FIG 2 YES USING AN OHMMETER MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE...

Page 204: ...TEST 18A REPAIRING CONTROL MODULE HEAD ILLUMINATION Perform TEST 1A Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 194 ...

Page 205: ...ROL HARNESS CONNECTOR WITH AN OHMMETER MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN GROUND AND THE BELOW 5 0 OHMS GROUND CIRCUIT GROUND CIRCUIT CAVITY 3 FIG 1 YES USING A VOLTMETER TURN THE PARK MEASURE THE PANEL LAMPS ON LAMPS DRIVER CKT FIG 1 ROTATE THE DIMMER DOES THE VOLTAGE REPLACE THE SWITCH THUMB WHEEL RANGE FROM BELOW YES AUTOMATIC AND OBSERVE THE 3 5 TO ABOVE 9 0 TEMPERATURE VOLTA...

Page 206: ...TEST 19A REPAIRING INOPERATIVE MODE DOOR Perform TEST 1A Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 196 ...

Page 207: ...ED TEMPERATURE EACH SWITCH ON THE WHEN THE SWITCHES CONTROL HEAD ATC ARE DEPRESSED YES DISCONNECT THE BCM COMMON DOOR DRIVER C1 HARNESS CIRCUIT CONNECTOR RECONNECT THE BCM C1 USING A TEST LIGHT HARNESS CONNECTOR BACKPROBE THE FIG 1 TURN IGNITION ON OBSERVE THE TEST ENGINE OFF LIGHT NOTE WAIT 10 TURN RECIRC SW OFF DID THE TEST LIGHT SECONDS BETWEEN TURN PANEL SW ON ILLUMINATE FOR YES CONTINUE TEST ...

Page 208: ...TEST 19A CONTINUED REPAIRING INOPERATIVE MODE DOOR FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 198 ...

Page 209: ...FOR YES CONTINUE TEST CIRCUIT BI LEVEL SWITCHES APPROXIMATELY 5 19A ON THE NEXT ON CONTROL HEAD SECONDS PAGE NO KEY OFF DISCONNECT RECONNECT THE BCM NOTE WAIT 10 THE BCM C1 HARNESS C1 HARNESS SECONDS BETWEEN CONN WITH A TEST CONNECTOR SWITCHING THE LIGHT BACKPROBE THE TURN IGNITION ON SWITCHES MODE DOOR DR CKT FIG 2 PUSH TURN PANEL DID THE TEST LIGHT WHILE BACKPROBING THEN DEFROST THEN ILLUMINATE ...

Page 210: ...TEST 19A CONTINUED REPAIRING INOPERTIVE MODE DOOR FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 200 ...

Page 211: ...S BODY CONTROL PAGE MODULE C1 HARNESS CONNECTOR DISCONNECT THE USING AN OHMMETER MODE DOOR ACTUATOR MEASURE THE COMMON HARNESS DOOR DRIVER CKT CONNECTOR BETWEEN THE BCM AND THE MODE DOOR ACTUATOR IS THE RESISTANCE NO REPAIR THE OPEN BELOW 5 0 OHMS COMMON DOOR DRIVER CIRCUIT FIG 1 YES REPLACE THE MODE DOOR ACTUATOR A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 201 ...

Page 212: ...TEST 20A REPAIRING REAR WINDOW DEFOGGER Perform TEST 1A Before Proceeding FIG 1 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 202 ...

Page 213: ...S N OHMMETER REPAIR THE OPEN BACKPROBE IS THE RESISTANCE NO GROUND CIRCUIT TO TURN IGNITION OFF G ND BELOW 5 0 OHMS THE REAR WINDOW DEFOGGER GLASS ELEMENTS YES TURN IGNITION ON USING A VOLTMETER REPAIR THE REAR TURN THE REAR BACKPROBE THE REAR IS THE VOLTAGE YES WINDOW DEFROSTER WINDOW DEFOGGER DEFOGGER RELAY ABOVE 10 0 VOLTS BROKEN ELEMENT S SWITCH ON OUTPUT CKT AT RIGHT AS NECESSARY REAR GLASS G...

Page 214: ...TEST 20A CONTINUED REPAIRING REAR WINDOW DEFOGGER FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 204 ...

Page 215: ... TEST JUMPER WIRE LIGHT BETWEEN THE FUSED B AND THE REAR DEFOGGER NOTE MAKE SURE REAR DOES THE TEST RELAY CONTROL CKTS DEFROSTER SWITCH IS LIGHT ILLUMINATE YES REPLACE THE REAR CAVITIES 2 AND 4 STILL TURNED ON BY WHEN THE SWITCH IS WINDOW DEFOGGER SEEING LED INDICATOR ON RELAY FIG 1 ON THE SWITCH NO KEY OFF CONNECT A JUMPER DISCONNECT THE BODY WIRE FROM REAR CONTROL MODULE C4 DEFOGGER RELAY HARNES...

Page 216: ...TEST 20B REPAIRING REAR WINDOW DEFOGGER Perform TEST 20A Before Proceeding FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 206 ...

Page 217: ...REPAIR THE FUSED MEASURE BETWEEN IS THE RESISTANCE YES B CKT FOR A GROUND AND BOTH BELOW 5 0 OHMS SHORT TO GROUND FUSED B CIRCUITS AND REPLACE THE FIG 2 PDC EBL FUSE NO REPLACE THE PDC REINSTALL THE REAR EBL FUSE WINDOW DEFOGGER RELAY TURN IGNITION ON DID THE REAR REPAIR REAR DEFOGGER ENGINE OFF DEFOGGER OPERATE NO RELAY OUTPUT CKT FOR OK WITHOUT BLOWING A SHORT TO GROUND TURN THE REAR THE FUSE AN...

Page 218: ...TEST 21A REPAIRING INCORRECT TEMPERATURE CONTROL IN SUN OR SHADE Perform TEST 1A Before Proceeding FIG 1 FIG 2 A U T O M A T I C T E M P E R A T U R E C O N T R O L S Y S T E M 208 ...

Page 219: ... IF OK CIRCUIT FIG 1 REPLACE THE BCM NO CONNECT A JUMPER DOES THE DRB WIRE BETWEEN THE DISPLAY YES REPLACE THE SUN SUN SENSOR SIGNAL SUN SENSOR BELOW SENSOR CKT AND SENSOR 0 2 VOLT GROUND CKT FIG 1 NO CONNECT A JUMPER DOES THE DRB DISCONNECT THE WIRE BETWEEN SUN DISPLAY YES REPAIR THE OPEN JUMPER WIRE SENSOR SIGNAL CKT SUN SENSOR BELOW SENSOR GROUND AND GROUND 0 2 VOLT CIRCUIT FIG 1 NO KEY OFF REM...

Page 220: ...TEST 1A IDENTIFYING CHIME SYSTEM PROBLEMS Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding C H I M E S Y S T E M 210 ...

Page 221: ...and perform the indicated tests PROBLEM WITH PERFORM Chime Inoperative at all times TEST 2A Chime inoperative with exterior lamps on TEST 3A Chime inoperative with driver s seat belt unfastened TEST 4A Chime inoperative with key in ignition and drivers door open TEST 5A Chime beep request inoperative TEST 6A Chime inoperative with vehicle speed above 75 mph 120 kmh Gulf Coast countries only TEST 7...

Page 222: ...TEST 2A REPAIRING CHIME INOPERATIVE AT ALL TIMES Perform TEST 1A Before Proceeding C H I M E S Y S T E M 212 ...

Page 223: ...nectors Clean repair as necessary TURN THE IGNITION START TEST 2A ON WITH THE DRB ENTER INSURE ALL DOORS BODY COMPUTER DOES THE CHIME NO REPLACE THE BODY ARE CLOSED THEN ACTUATOR SOUND CONTROL MODULE TESTS AND ACTUATE THE CHIME YES TURN THE IGNITION THE SYSTEM IS OFF OPERATIONAL WITH NO TROUBLE FOUND C H I M E S Y S T E M 213 ...

Page 224: ...TEST 3A REPAIRING CHIME INOPERATIVE WITH EXTERIOR LAMPS ON Perform TEST 1A Before Proceeding C H I M E S Y S T E M 214 ...

Page 225: ...ERLY YES DOES THE DRB OPEN THE DRIVERS WITH THE DRB READ DISPLAY NO PERFORM DOOR THE DOOR AJAR DRDOOR AJAR DOOR AJAR STATUS SWITCH CLOSED TEST 1A YES DOES THE DRB REMOVE THE WITH THE DRB READ DISPLAY NO PERFORM TEST IGNITION KEY THE KEY IN KEY IN IGNITION 9A IGNITION STATUS SW OPEN YES TURN THE PARK DOES THE CHIME NO REPLACE THE BODY LAMPS ON SOUND CONTROL MODULE YES TURN THE HEADLAMPS DOES THE CH...

Page 226: ...TEST 4A REPAIRING CHIME INOPERATIVE WITH DRIVER SEAT BELT UNFASTENED Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 C H I M E S Y S T E M 216 ...

Page 227: ...TO SEAT BELT SWITCH MEASURE THE SEAT IS THE VOLTAGE YES VOLTAGE IN THE SEAT HARNESS BELT SWITCH SENSE ABOVE 5 3 VOLTS BELT SW SENSE CKT CONNECTOR CKT IF OK REPLACE BODY FIG 1 CONTROL MODULE NO CONNECT A JUMPER DOES THE DRB WIRE BETWEEN THE DISPLAY YES REPLACE THE SEAT SEAT BELT SWITCH SEAT BELT SWITCH BELT SWITCH SENSE CKT AND THE CLOSED GROUND CKT FIG 1 NO CONNECT A JUMPER DOES THE DRB WIRE BETWE...

Page 228: ...TEST 5A REPAIRING CHIME INOPERATIVE WITH KEY IN IGNITION AND DRIVER DOOR OPEN Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 C H I M E S Y S T E M 218 ...

Page 229: ...ODY IN THE IGNITION IGNITION SWITCH KEY IN IGNITION CONTROL MODULE SWITCH STATUS SW CLOSED NO DISCONNECT THE CONNECT A JUMPER DOES THE DRB IGNITION SWITCH WIRE BETWEEN THE DISPLAY YES REPLACE THE HARNESS KEY IN IGNITION SW KEY IN IGNITION IGNITION SWITCH CONNECTOR SENSE CKT AND THE SW CLOSED GROUND CKT FIG 1 NO CONNECT A JUMPER DOES THE DRB WIRE BETWEEN THE DISPLAY YES REPAIR THE OPEN KEY IN IGNIT...

Page 230: ...TEST 6A REPAIRING CHIME BEEP REQUEST INOPERATIVE Perform TEST 1A Before Proceeding C H I M E S Y S T E M 220 ...

Page 231: ...DY COMPUTER THE BCM TEST 1A YES PERFORM WITH THE DRB ENTER WERE YOU ABLE TO NO VEHICLE AUTOMATIC TEMP COMUNICATE WITH COMMUNICATION CONTROL THE ATC TEST 1A YES PERFORM WITH THE DRB ENTER WERE YOU ABLE TO NO VEHICLE OTIS COMUNICATE WITH COMMUNICATION THE OTIS TEST 1A YES WITH THE DRB ENTER BODY COMPUTER DID THE CHIME NO REPLACE THE BODY THEN ACTUACTOR SOUND CONTROL MODULE TESTS AND ACTUATE THE CHIM...

Page 232: ...TEST 7A CHIME INOPERATIVE WITH VEHICLE SPEED ABOVE 75 MPH 120 KMH GULF COAST COUNTRIES ONLY Perform TEST 1A Before Proceeding NOTES C H I M E S Y S T E M 222 ...

Page 233: ...SURE THE CORRECT COUNTRY CODE NO COAST COUNTRY CODE ON COUNTRY CODE HAS SELECTED FOR THE FOR THE BODY BEEN SELECTED FOR BCM CONTROL MODULE THE BCM YES USING THE DRB REFER TO THE CHECK THE PCM FOR ARE ANY VEHICLE YES POWERTRAIN ANY VEHCILE SPEED SPEED SENSOR CODES DIAGNOSTIC MANUAL SENSOR CODES PRESENT FOR THE APPROIATE TEST NO WITH THE DRB ENTER BODY COMPUTER DID THE CHIME NO REPLACE THE BODY THEN...

Page 234: ...TEST 8A REPAIRING CHIME SOUNDS WITH DRIVER SEAT BELT FASTENED Perform TEST 1A Before Proceeding FIG 1 C H I M E S Y S T E M 224 ...

Page 235: ... THE DRB WITH THE DRB READ DISPLAY NO REPLACE THE BODY THE SEAT BELT SEAT BELT SWITCH CONTROL MODULE SWITCH STATUS CLOSED YES DISCONNECT THE DOES THE DRB SEAT BELT SWITCH WITH THE DRB READ DISPLAY NO REPLACE THE SEAT HARNESS THE SEAT BELT SEAT BELT SWITCH BELT SWITCH CONNECTOR SWITCH STATUS CLOSED YES KEY OFF WITH AN OHMMETER DISCONNECT THE MEASURE BETWEEN IS THE RESISTANCE NO REPLACE THE BODY BOD...

Page 236: ...TEST 9A REPAIRING CHIME SOUNDS WITH DRIVER DOOR OPEN Perform TEST 1A Before Proceeding FIG 1 C H I M E S Y S T E M 226 ...

Page 237: ... DOES THE DRB THE KEY IN DISPLAY NO REPLACE THE BODY IGNITION SWITCH KEY IN IGNITION CONTROL MODULE STATUS SWITCH CLOSED YES DISCONNECT THE WITH THE DRB READ DOES THE DRB IGNITION SWITCH THE KEY IN DISPLAY NO REPLACE THE HARNESS IGNITION SWITCH KEY IN IGNITION IGNITION SWITCH CONNECTOR STATUS SWITCH CLOSED YES DISCONNECT THE WITH AN OHMMETER BODY CONTROL MEASURE BETWEEN IS THE RESISTANCE NO REPLAC...

Page 238: ...TEST 1A IDENTIFYING DOOR AJAR PROBLEMS Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding D O O R A J A R S Y S T E M 228 ...

Page 239: ...e all doors are aligned and close properly 3 With the DRB in inputs outputs read the door ajar switches If the ajar switch state is Closed when the door is closed perform the appropriate Shorted test If the ajar switch state is Open when the door is open perform the appropriate Open test PROBLEM WITH PERFORM Open Left Front Door Ajar Circuit TEST 2A Shorted Left Front Door Ajar Circuit TEST 3A Ope...

Page 240: ...TEST 2A REPAIRING OPEN LEFT FRONT DOOR AJAR CIRCUIT Perform TEST 1A Before Proceeding FIG 1 FIG 2 D O O R A J A R S Y S T E M 230 ...

Page 241: ...H HARNESS GROUND CIRCUIT CONNECTOR FIG 1 YES CONNECT A JUMPER WITH THE DRB READ DOES THE DRB WIRE BETWEEN THE THE LEFT FRONT DISPLAY YES REPLACE THE LEFT DOOR AJAR SW SENSE DR DOOR AJAR DRDOOR AJAR FRONT DR DOOR CKT GND SWITCH STATUS SWITCH CLOSED LATCH ASSEMBLY FIG 1 NO LEAVE JUMPER WIRE USING AN OHMMETER REPAIR THE OPEN CONNECTED MEASURE BETWEEN IS THE RESISTANCE NO LEFT FRONT DR DISCONNECT THE ...

Page 242: ...TEST 3A REPAIRING SHORTED LEFT FRONT DOOR AJAR CIRCUIT Perform TEST 1A Before Proceeding FIG 1 D O O R A J A R S Y S T E M 232 ...

Page 243: ...OR LOCK THE LEFT FRONT DISPLAY NO REPLACE THE LEFT MOTOR AJAR SWITCH DR DOOR AJAR DRDOOR AJAR FRONT DR DOOR HARNESS CONNECTOR SWITCH STATUS SWITCH CLOSED LATCH ASSEMBLY YES DISCONNECT THE USING AN OHMMETER REPAIR THE LEFT BODY CONTROL MEASURE BETWEEN IS THE RESISTANCE YES FRONT DR DOOR MODULE C4 HARNESS GROUND AND THE LEFT BELOW 5 0 OHMS AJAR SWITCH SENSE CONNECTOR FRONT DR AJAR SW CIRCUIT FOR A S...

Page 244: ...TEST 4A REPAIRING OPEN LEFT REAR DOOR AJAR CIRCUIT Perform TEST 1A Before Proceeding FIG 1 FIG 2 D O O R A J A R S Y S T E M 234 ...

Page 245: ...T SWITCH HARNESS GROUND CIRCUIT CONNECTOR FIG 1 YES CONNECT A JUMPER WITH THE DRB READ DOES THE DRB WIRE BETWEEN THE THE LEFT REAR DOOR DISPLAY YES REPLACE THE LEFT DOOR AJAR SW SENSE AJAR SWITCH DOOR AJAR SWITCH REAR DOOR LATCH CKT GND STATUS CLOSED ASSEMBLY FIG 1 NO LEAVE JUMPER WIRE USING AN OHMMETER REPAIR THE OPEN CONNECTED MEASURE BETWEEN IS THE RESISTANCE NO LEFT REAR DOOR DISCONNECT THE BO...

Page 246: ...TEST 5A REPAIRING SHORTED DOOR AJAR CIRCUIT Perform TEST 1A Before Proceeding FIG 1 FIG 2 D O O R A J A R S Y S T E M 236 ...

Page 247: ... 5 0 OHMS 5B SENSE CIRCUIT FIG 1 NO MEASURE BETWEEN GROUND AND THE RR IS THE RESISTANCE YES PERFORM TEST DOOR AJAR SWITCH BELOW 5 0 OHMS 5C SENSE CIRCUIT FIG 1 NO MEASURE BETWEEN GROUND AND THE LR IS THE RESISTANCE NO REPLACE THE BODY DOOR AJAR SWITCH BELOW 5 0 OHMS CONTROL MODULE SENSE CIRCUIT FIG 1 YES DISCONNECT THE MEASURE BETWEEN REPAIR THE LEFT LEFT REAR DOOR GROUND AND THE IS THE RESISTANCE...

Page 248: ...TEST 5B REPAIRING SHORTED RIGHT FRONT DOOR AJAR CIRCUIT Perform TEST 5A Before Proceeding FIG 1 D O O R A J A R S Y S T E M 238 ...

Page 249: ...COMPONENTS START TEST 5B SEE GENERAL INFO 4 0 DISCONNECT THE USING AN OHMMETER REPAIR THE RIGHT RIGHT FRONT DOOR MEASURE BETWEEN IS THE RESISTANCE YES FRONT DOOR AJAR LOCK MOTOR AJAR GROUND AND THE BELOW 5 0 OHMS SWITCH SENSE SWITCH HARNESS DOOR AJAR SWITCH CIRCUIT FOR A CONNECTOR SENSE CKT FIG 1 SHORT TO GROUND NO REPLACE THE RIGHT FRONT DOOR LATCH ASSEMBLY D O O R A J A R S Y S T E M 239 ...

Page 250: ...TEST 5C REPAIRING SHORTED RIGHT REAR DOOR AJAR CIRCUIT Perform TEST 5A Before Proceeding FIG 1 D O O R A J A R S Y S T E M 240 ...

Page 251: ... COMPONENTS START TEST 5C SEE GENERAL INFO 4 0 DISCONNECT THE USING AN OHMMETER REPAIR THE RIGHT RIGHT REAR DOOR MEASURE BETWEEN IS THE RESISTANCE YES REAR DOOR AJAR LOCK MOTOR AJAR GROUND AND THE BELOW 5 0 OHMS SWITCH SENSE SWITCH HARNESS DOOR AJAR SWITCH CIRCUIT FOR A CONNECTOR SENSE CKT FIG 1 SHORT TO GROUND NO REPLACE THE RIGHT REAR DOOR LATCH ASSEMBLY D O O R A J A R S Y S T E M 241 ...

Page 252: ...TEST 6A REPAIRING OPEN RIGHT FRONT DOOR AJAR CIRCUIT Perform TEST 1A Before Proceeding FIG 1 FIG 2 D O O R A J A R S Y S T E M 242 ...

Page 253: ... SWITCH HARNESS GROUND CIRCUIT CONNECTOR FIG 1 YES CONNECT A JUMPER WITH THE DRB READ DOES THE DRB WIRE BETWEEN THE THE RIGHT FRONT DISPLAY YES REPLACE THE RIGHT DOOR AJAR SW SENSE DOOR AJAR SWITCH DOOR AJAR SWITCH FRONT DOOR LATCH CKT GND STATUS CLOSED ASSEMBLY FIG 1 NO LEAVE JUMPER WIRE USING AN OHMMETER REPAIR THE OPEN CONNECTED MEASURE BETWEEN IS THE RESISTANCE NO RIGHT FRONT DOOR DISCONNECT T...

Page 254: ...TEST 7A REPAIRING OPEN RIGHT REAR DOOR AJAR CIRCUIT Perform TEST 1A Before Proceeding FIG 1 FIG 2 D O O R A J A R S Y S T E M 244 ...

Page 255: ... SWITCH HARNESS GROUND CIRCUIT CONNECTOR FIG 1 YES CONNECT A JUMPER WITH THE DRB READ DOES THE DRB WIRE BETWEEN THE THE RIGHT REAR DISPLAY YES REPLACE THE RIGHT DOOR AJAR SW SENSE DOOR AJAR SWITCH DOOR AJAR SWITCH REAR DOOR LATCH CKT GND STATUS CLOSED ASSEMBLY FIG 1 NO LEAVE JUMPER WIRE USING AN OHMMETER REPAIR THE OPEN CONNECTED MEASURE BETWEEN IS THE RESISTANCE NO RIGHT REAR DOOR DISCONNECT THE ...

Page 256: ...TEST 1A IDENTIFYING EXTERIOR LIGHTING SYSTEM FAILURES Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding E X T E R I O R L I G H T I N G S Y S T E M 246 ...

Page 257: ...cle Communication TEST 1A 2 With the DRB select Read DTCs If the code Headlamp Switch Input Failure is present perform TEST 2A PROBLEM WITH PERFORM Low Beam Headlamps that will not turn On TEST 3A Low Beam Headlamps that will not turn Off TEST 4A Parklamps that will not turn On TEST 5A Parklamps that will not turn Off TEST 6A High Beam Headlamps that will not turn On TEST 7A High Beam Headlamps th...

Page 258: ...TEST 2A REPAIRING HEADLAMP SWITCH INPUT FAILURE Perform TEST 1A Before Proceeding FIG 1 FIG 2 E X T E R I O R L I G H T I N G S Y S T E M 248 ...

Page 259: ...CONNECTOR SWITCH MUX CIRCUIT VOLTAGE IF OK FIG 1 REPLACE THE BCM NO CONNECT A JUMPER CAVITIES 6 12 DOES THE DRB WIRE BETWEEN THE DISPLAY YES REPLACE THE HEADLAMP SWITCH HEADLAMP SWITCH HEADLAMP SWITCH 13 WAY HARNESS VOLTAGE CONN FIG 1 0 0 VOLTS NO REMOVE THE JUMPER HEADLAMP SWITCH DOES THE DRB WIRE 13 WAY HARNESS DISPLAY YES CONTINUE TEST CONNECT A JUMPER CONNECTOR HEADLAMP SWITCH 2A ON THE NEXT W...

Page 260: ...TEST 2A CONTINUED REPAIRING HEADLAMP SWITCH INPUT FAILURE FIG 1 FIG 2 E X T E R I O R L I G H T I N G S Y S T E M 250 ...

Page 261: ...THE CONTINUED FROM BODY CONTROL THE PREVIOUS MODULE C2 HARNESS PAGE CONNECTOR USING AN OHMMETER HEADLAMP SWITCH MEASURE THE AND THE BCM IS THE RESISTANCE NO REPAIR THE OPEN HEADLAMP SWITCH BELOW 5 0 OHMS HEADLAMP SWITCH RETURN CIRCUIT RETURN CIRCUIT BETWEEN THE FIGS 1 2 YES REPLACE THE BODY CONTROL MODULE E X T E R I O R L I G H T I N G S Y S T E M 251 ...

Page 262: ...TEST 2B REPAIRING HEADLAMP SWITCH INPUT FAILURE Perform TEST 2A Before Proceeding FIG 1 E X T E R I O R L I G H T I N G S Y S T E M 252 ...

Page 263: ...S REPLACE THE START TEST 2B 13 WAY HARNESS SWITCH VOLTAGE HEADLAMP SWITCH CONNECTOR 5 0 VOLTS OR 0 2 NO DISCONNECT THE USING AN OHMMETER REPAIR THE BODY CONTROL MEASURE BETWEEN IS THE RESISTANCE YES HEADLAMP SWITCH MODULE C2 HARNESS GROUND AND THE BELOW 5 0 OHMS MUX CIRCUIT FOR A CONNECTOR HEADLAMP SWITCH MUX SHORT TO GROUND CIRCUIT FIG 1 NO REPLACE THE BODY CONTROL MODULE E X T E R I O R L I G H ...

Page 264: ...TEST 3A REPAIRING LOW BEAM HEADLAMPS THAT WILL NOT TURN ON Perform TEST 1A Before Proceeding FIG 1 FIG 2 E X T E R I O R L I G H T I N G S Y S T E M 254 ...

Page 265: ...E YES CONTINUE TEST APPROPRIATE IS THE FUSE OPEN 3A ON THE NEXT INOPERATIVE LAMP PAGE FIG 1 NO REINSTALL THE FUSE USING A VOLTMETER REPAIR THE OPEN AND DISCONNECT THE MEASURE THE FUSED IS THE VOLTAGE NO FUSED LOW BEAM INOPERATIVE LOW BEAM RELAY ABOVE 10 0 VOLTS RELAY OUTPUT HEADLAMP HARNESS OUTPUT CIRCUIT CIRCUIT CONNECTOR FIG 2 YES USING AN OHMMETER TURN ALL LIGHTS MEASURE BETWEEN IS THE RESISTAN...

Page 266: ...TEST 3A CONTINUED REPAIRING LOW BEAM HEADLAMPS THAT WILL NOT TURN ON FIG 1 E X T E R I O R L I G H T I N G S Y S T E M 256 ...

Page 267: ...LOW BEAM DID THE HEADLAMP YES HEADLAMPS ON COME ON WITHOUT REPAIR COMPLETE BLOWING THE FUSE NO TURN THE HEADLAMPS USING AN OHMMETER REPAIR THE FUSED OFF MEASURE BETWEEN IS THE RESISTANCE YES LOW BEAM RELAY DISCONNECT THE GROUND AND THE FUSED BELOW 5 0 OHMS OUTPUT CIRCUIT FOR APPROPRIATE HEADLAMP LOW BEAM RELAY A SHORT TO HARNESS CONNECTOR OUTPUT CKT FIG 1 GROUND NO REPLACE THE HEADLAMP E X T E R I...

Page 268: ...TEST 3B REPAIRING LOW BEAM HEADLAMPS THAT WILL NOT TURN ON Perform TEST 3A Before Proceeding FIG 1 E X T E R I O R L I G H T I N G S Y S T E M 258 ...

Page 269: ...PS OFF VOLTAGE YES DID THE LOW BEAM USING THE DRB HEADLAMP RELAY NO PERFORM TEST ACTUATE THE CLICK DURING 3C HEADLAMP RELAY ACTUATION YES REMOVE THE LOW BEAM USING A VOLTMETER REPAIR THE OPEN HEADLAMP RELAY MEASURE THE FUSED IS THE VOLTAGE NO FUSED B B CIRCUIT ABOVE 10 0 VOLTS CIRCUIT IF OK CAVITY 62 REPLACE THE FIG 1 FIG 1 JUNCTION BLOCK YES CONNECT A JUMPER REPAIR THE OPEN WIRE BETWEEN LOW DID T...

Page 270: ...TEST 3C REPAIRING LOW BEAM HEADLAMPS THAT WILL NOT TURN ON Perform TEST 3A Before Proceeding FIG 1 FIG 2 E X T E R I O R L I G H T I N G S Y S T E M 260 ...

Page 271: ...1 IF OK REPLACE THE FIG 1 FIG 1 JUNCTION BLOCK YES CONNECT A TEST LIGHT BETWEEN WITH THE DRB DID THE TEST LIGHT YES REPLACE THE LOW ACTUATE THE FLASH DURING BEAM HEADLAMP HEADLAMP RELAY ACTUATION RELAY NO REMOVE THE BODY CONTROL MODULE FROM THE JUNCTION BLOCK USING AN OHMMETER AND THE J B 20 WAY MEASURE BETWEEN INTERNAL CONNECTOR IS THE RESISTANCE NO REPLACE THE THE LOW BEAM TERMINAL 14 BELOW 5 0 ...

Page 272: ...TEST 4A REPAIRING LOW BEAM HEADLAMPS THAT WILL NOT TURN OFF Perform TEST 1A Before Proceeding FIG 1 FIG 2 E X T E R I O R L I G H T I N G S Y S T E M 262 ...

Page 273: ...EADLAMP DID THE LOW BEAM NO CONTINUE TEST RELAY HEADLAMPS TURN 4A ON THE NEXT OFF PAGE FIG 1 YES SUBSTIUTE THE LOW BEAM HEADLAMP DID THE LOW BEAM NO REPLACE THE RELAY WITH A KNOWN HEADLAMPS COME ON ORIGINAL LOW BEAM GOOD RELAY HEADLAMP RELAY FIG 1 YES REMOVE THE LOW REMOVE THE BODY BEAM HEADLAMP CONTROL MODULE RELAY FROM THE JUNCTION BLOCK FIG 1 WITH AN OHMMETER AND ALL OTHER J B IS THE RESISTANCE...

Page 274: ...TEST 4A CONTINUED REPAIRING LOW BEAM HEADLAMPS THAT WILL NOT TURN OFF E X T E R I O R L I G H T I N G S Y S T E M 264 ...

Page 275: ...NOTE FOR LOCATION CONTINUED FROM OF ALL COMPONENTS THE PREVIOUS PAGE SEE GENERAL INFO 4 0 DISCONNECT THE MULTI FUNCTION DID THE LOW BEAM YES REPLACE THE SWITCH HARNESS HEADLAMPS TURN MULTI FUNCTION CONNECTOR OFF SWITCH NO REPAIR THE LOW BEAM RELAY OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE IF OK REPLACE THE J B E X T E R I O R L I G H T I N G S Y S T E M 265 ...

Page 276: ...TEST 5A REPAIRING PARK LAMPS THAT WILL NOT TURN ON Perform TEST 1A Before Proceeding FIG 1 E X T E R I O R L I G H T I N G S Y S T E M 266 ...

Page 277: ...ITCH VOLTAGE 0 5 VOLT FOG LAMPS OFF YES USING THE DRB DID THE PARK LAMP NO CONTINUE TEST ACTUATE THE PARK RELAY CLICK DURING 5A ON THE NEXT LAMP RELAY ACTUATION PAGE YES REMOVE THE PARK USING A VOLTMETER REPAIR THE OPEN LAMP RELAY MEASURE THE FUSED IS THE VOLTAGE NO FUSED B B CIRCUIT ABOVE 10 0 VOLTS CIRCUIT IF OK CAVITY 54 REPLACE THE FIG 1 FIG 1 JUNCTION BLOCK YES CONNECT A JUMPER WIRE BETWEEN T...

Page 278: ...TEST 5A CONTINUED REPAIRING PARK LAMPS THAT WILL NOT TURN ON FIG 1 FIG 2 E X T E R I O R L I G H T I N G S Y S T E M 268 ...

Page 279: ...TY 53 PAGE FIG 1 FIG 1 YES CONNECT A TEST LIGHT BETWEEN WITH THE DRB DID THE TEST LIGHT YES REPLACE THE PARK RELAY ACTUATE THE PARK FLASH DURING LAMP RELAY CON LAMP RELAY ACTUATION NO REMOVE THE BODY CONTROL MODULE FROM THE JUNCTION BLOCK USING AN OHMMETER AND THE J B 20 WAY MEASURE BETWEEN INTERNAL CONNECTOR IS THE RESISTANCE NO REPLACE THE THE PARK LAMP TERMINAL 16 BELOW 5 0 OHMS JUNCTION BLOCK ...

Page 280: ...TEST 5A CONTINUED REPAIRING PARK LAMPS THAT WILL NOT TURN ON FIG 1 FIG 2 E X T E R I O R L I G H T I N G S Y S T E M 270 ...

Page 281: ...EN IS THE RESISTANCE YES REPLACE THE GROUND AND THE PARK BELOW 5 0 OHMS JUNCTION BLOCK LAMP RELAY CONN CAVITY 53 FIG 2 NO USING AN OHMMETER MEASURE BETWEEN IS THE RESISTANCE NO GROUND AND THE BELOW 5 0 OHMS REPLACE THE FUSE PARK LAMP RELAY CAVITY 55 FIG 2 YES REMOVE THE BODY WITH THE OHMMETER CONTROL MODULE IS THE RESISTANCE NO REPLACE THE BODY STILL CONNECTED FROM THE JUNCTION BELOW 5 0 OHMS CONT...

Page 282: ...TEST 6A REPAIRING PARK LAMPS THAT WILL NOT TURN OFF Perform TEST 1A Before Proceeding FIG 1 FIG 2 E X T E R I O R L I G H T I N G S Y S T E M 272 ...

Page 283: ...EMOVE THE PARK LAMP RELAY DID THE PARK LAMPS NO CONTINUE TEST TURN OFF 6A ON THE NEXT PAGE FIG 1 YES SUBSITUTE THE PARK LAMP RELAY WITH A DID THE PARK LAMPS NO REPLACE THE KNOWN GOOD RELAY COME ON ORIGINAL PARK LAMP RELAY FIG 1 YES REMOVE THE PARK REMOVE THE BODY LAMP RELAY CONTROL MODULE FROM THE JUNCTION BLOCK FIG 1 WITH AN OHMMETER AND ALL OTHER J B IS THE RESISTANCE MEASURE BETWEEN 20 WAY INTE...

Page 284: ...TEST 6A CONTINUED REPAIRING PARK LAMPS THAT WILL NOT TURN OFF FIG 1 FIG 2 E X T E R I O R L I G H T I N G S Y S T E M 274 ...

Page 285: ...LAMP MEASURE THE PARK IS THE VOLTAGE YES RELAY OUTPUT CIRCUIT LAMP RELAY OUTPUT ABOVE 0 5 VOLTS FOR A SHORT TO CIRCUIT CAV 55 VOLTAGE IF OK FIG 1 REPLACE THE J B NO WITH AN OHMMETER AND ALL OTHER J B IS THE RESISTANCE MEASURE BETWEEN 20 WAY INTERNAL BELOW 100 0 OHMS YES REPLACE THE THE J B 20 WAY CONN TERMINALS ON ANY OF THE JUNCTION BLOCK INTERNAL CONN MEASUREMENTS TERMINAL 6 FIG 2 NO REPLACE THE...

Page 286: ...TEST 7A REPAIRING HIGH BEAM HEADLAMPS THAT WILL NOT TURN ON Perform TEST 1A Before Proceeding FIG 1 E X T E R I O R L I G H T I N G S Y S T E M 276 ...

Page 287: ...ICK 7A ON THE NEXT TURN THE HEADLAMPS THE HIGH BEAM SWITCH PAGE ON ON AND OFF YES REMOVE THE HIGH BEAM USING A VOLTMETER CHECK FUSE C IN PDC HEADLAMP RELAY MEASURE THE FUSED IS THE VOLTAGE NO CHECK FOR A OPEN B CIRCUIT ABOVE 10 0 VOLTS FUSED B CIRCUIT CAVITY 58 IF OK REPLACE THE FIG 1 FIG 1 JUNCTION BLOCK YES CONNECT A JUMPER REPAIR THE OPEN WIRE BETWEEN HIGH DID THE HIGH BEAM NO HIGH BEAM RELAY B...

Page 288: ...TEST 7A CONTINUED REPAIRING HIGH BEAM HEADLAMPS THAT WILL NOT TURN ON FIG 1 FIG 2 E X T E R I O R L I G H T I N G S Y S T E M 278 ...

Page 289: ...EN THE HIGH LIGHT WHILE LIGHT FLASH WHEN YES RELAY GROUND BEAM RELAY CONN CYCLEING THE HIGH SWITCHING THE HIGH CIRCUIT IF OK CAVITY 57 AND A GOOD BEAM SWITCH ON AND BEAM SWITCH ON AND REPLACE THE GROUND FIG 1 OFF OFF JUNCTION BLOCK NO DISCONNECT THE USING A VOLTMETER REPAIR THE OPEN MULTI FUNCTION MEASURE THE FUSED IS THE VOLTAGE NO FUSED LOW BEAM RELAY SWITCH HARNESS LOW BEAM RELAY ABOVE 10 0 VOL...

Page 290: ...TEST 7A CONTINUED REPAIRING HIGH BEAM HEADLAMPS THAT WILL NOT TURN ON FIG 1 FIG 2 FIG 3 E X T E R I O R L I G H T I N G S Y S T E M 280 ...

Page 291: ...SED BELOW 5 0 OHMS CKT FOR A SHORT TO LOW BEAM RELAY GROUND IF OK OUTPUT CKT FIG 1 REPLACE THE J B NO USING AN OHMMETER MEASURE BETWEEN IS THE RESISTANCE NO REPLACE THE GROUND AND THE SW BELOW 5 0 OHMS MULTI FUNCTION HIGH BEAM RELAY SWITCH CONTROL CKT FIG 2 YES REMOVE THE HIGH BEAM WITH THE OHMMETER HEADLAMP RELAY IS THE RESISTANCE NO REPLACE THE HIGH STILL CONNECTED STILL BELOW 5 0 BEAM HEADLAMP ...

Page 292: ...TEST 8A REPAIRING HIGH BEAM HEADLAMPS THAT WILL NOT TURN OFF Perform TEST 1A Before Proceeding FIG 1 FIG 2 E X T E R I O R L I G H T I N G S Y S T E M 282 ...

Page 293: ...A SHORT TO OFF VOLTAGE IF OK FIG 1 REPLACE THE J B YES MEASURE THE SWITCHED USE A VOLTMETER IN HIGH BEAM RELAY IS THE VOLTAGE NO REPLACE THE HIGH THE FOLLOWING CONTROL CIRCUIT ABOVE 1 0 VOLT BEAM HEADLAMP STEPS CAVITY 57 RELAY FIG 1 YES DISCONNECT THE MEASURE THE REPAIR THE SWITCHED MULTI FUNCTION SWITCHED HIGH BEAM IS THE VOLTAGE YES HIGH BEAM RELAY SWITCH HARNESS RELAY CONTROL ABOVE 1 0 VOLT CON...

Page 294: ...TEST 9A REPAIRING FOG LAMPS THAT WILL NOT TURN ON Perform TEST 1A Before Proceeding FIG 1 E X T E R I O R L I G H T I N G S Y S T E M 284 ...

Page 295: ...OLTS VOLTAGE YES USING THE DRB DID THE FOG LAMP NO CONTINUE TEST ACTUATE THE FOG RELAY CLICK DURING 9A ON THE NEXT LAMP RELAY ACTUATION PAGE YES REMOVE THE FOG USING A VOLTMETER REPAIR THE OPEN LAMP RELAY MEASURE THE FUSED IS THE VOLTAGE NO FUSED B B CIRCUIT ABOVE 10 0 VOLTS CIRCUIT IF OK CAVITY 66 REPLACE THE FIG 1 FIG 1 JUNCTION BLOCK YES CONNECT A JUMPER REPAIR THE OPEN WIRE BETWEEN THE DID THE...

Page 296: ...TEST 9A CONTINUED REPAIRING FOG LAMPS THAT WILL NOT TURN ON FIG 1 FIG 2 FIG 3 E X T E R I O R L I G H T I N G S Y S T E M 286 ...

Page 297: ...E FIG 1 NO REMOVE THE FOG USING A VOLTMETER LAMP RELAY MEASURE THE FUSED IS THE VOLTAGE NO REPLACE THE B CIRCUIT ABOVE 10 0 VOLTS JUNCTION BLOCK CAVITY 65 FIG 2 FIG 2 YES CONNECT A TEST LIGHT BETWEEN WITH THE DRB DID THE TEST LIGHT YES REPLACE THE FOG RELAY ACTUATE THE FOG FLASH DURING LAMP RELAY CON LAMP RELAY ACTUATION NO REMOVE THE BODY CONTROL MODULE FROM THE JUNCTION BLOCK USING AN OHMMETER A...

Page 298: ...TEST 9A CONTINUED REPAIRING FOG LAMPS THAT WILL NOT TURN ON FIG 1 E X T E R I O R L I G H T I N G S Y S T E M 288 ...

Page 299: ... OHMMETER MEASURE BETWEEN IS THE RESISTANCE YES REPLACE THE GROUND AND THE FOG BELOW 5 0 OHMS JUNCTION BLOCK LAMP RELAY CONN CAVITY 66 FIG 1 NO WITH AN OHMMETER REPAIR THE FOG LAMP MEASURE BETWEEN IS THE RESISTANCE YES RELAY OUTPUT CIRCUIT GROUND AND THE FOG BELOW 5 0 OHMS FOR A SHORT TO LAMP RELAY CONN GROUND IF OK CAVITY 67 FIG 1 REPLACE THE J B NO REPLACE THE FUSE E X T E R I O R L I G H T I N ...

Page 300: ...TEST 10A REPAIRING FOG LAMPS THAT WILL NOT TURN OFF Perform TEST 1A Before Proceeding FIG 1 FIG 2 E X T E R I O R L I G H T I N G S Y S T E M 290 ...

Page 301: ...G LAMP LAMP RELAY DID THE FOG LAMPS NO RELAY OUTPUT CIRCUIT TURN OFF FOR A SHORT TO VOLTAGE IF OK FIG 1 REPLACE THE J B YES SUBSITUTE THE FOG LAMP RELAY WITH A DID THE FOG LAMPS NO REPLACE THE KNOWN GOOD RELAY TURN ON ORIGINAL FOG LAMP RELAY FIG 1 YES REMOVE THE FOG REMOVE THE BODY LAMP RELAY CONTROL MODULE FROM THE JUNCTION BLOCK FIG 1 WITH AN OHMMETER AND ALL OTHER J B IS THE RESISTANCE MEASURE ...

Page 302: ...TEST 11A REPAIRING HEADLAMP TIME DELAY Perform TEST 1A Before Proceeding E X T E R I O R L I G H T I N G S Y S T E M 292 ...

Page 303: ...lean repair as necessary DO THE HEADLAMPS NO PERFORM TEST START TEST 11A OPERATE PROPERLY 1A YES WITH THE DRB IN PERFORM TURN THE IGNITION SENSORS READ IS THE VOLTAGE NO VEHICLE ON THE IGNITION ABOVE 10 0 VOLTS COMMUNICATION VOLTAGE TEST 14A YES REPLACE THE BODY CONTROL MODULE E X T E R I O R L I G H T I N G S Y S T E M 293 ...

Page 304: ...TEST 1A IDENTIFYING INSTRUMENT CLUSTER PROBLEMS Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding I N S T R U M E N T C L U S T E R 294 ...

Page 305: ...n TEST 5A If DRB displays BCM Bus Communication Failure perform Vehicle Communication TEST 4A 5 With the DRB select Body Computer then Read DTCs If the DRB displays Fuel Level Sending Unit Failure perform TEST 2A If DRB displays Dimming Level Switch Failure perform TEST 3A Diagnostics for the instrument cluster are separated into six groups Verify the failure or the customer s complaint and make s...

Page 306: ...TEST 2A REPAIRING FUEL LEVEL SENDING UNIT FAILURE Perform TEST 1A Before Proceeding FIG 1 FIG 2 I N S T R U M E N T C L U S T E R 296 ...

Page 307: ... MEASURE THE FUEL ABOVE 10 0 VOLTS 2A ON THE NEXT CONNECTOR LEVEL SENSOR SIGNAL PAGE CIRCUIT FIG 2 YES WITH A TEST LIGHT REPAIR THE FUEL CONNECTED TO GROUND IS THE TEST LIGHT YES LEVEL SENSOR SIGNAL PROBE THE FUEL LEVEL ILLUMINATED CIRCUIT FOR A SHORT SENSOR SIGNAL TO VOLTAGE IF OK CIRCUIT FIG 2 REPLACE BCM NO KEY OFF WITH AN OHMMETER MEASURE IS THE RESISTANCE NO REPAIR THE OPEN BETWEEN GROUND AND...

Page 308: ...TEST 2A CONTINUED REPAIRING FUEL LEVEL SENDING UNIT FAILURE I N S T R U M E N T C L U S T E R 298 ...

Page 309: ...tors Clean repair as necessary TEST 2A WITH THE DRB ENTER CONTINUED FROM BODY COMPUTER IS THE VOLTAGE NO REPLACE THE BODY THE PREVIOUS THEN SENSORS AND ABOVE 9 0 VOLTS CONTROL MODULE PAGE READ THE FUEL LEVEL VOLTAGE YES REPAIR THE OPEN FUEL LEVEL SENSOR SIGNAL CIRCUIT I N S T R U M E N T C L U S T E R 299 ...

Page 310: ...TEST 3A REPAIRING DIMMING LEVEL SWITCH FAILURE Perform TEST 1A Before Proceeding FIG 1 FIG 2 I N S T R U M E N T C L U S T E R 300 ...

Page 311: ...LTAGE YES REPLACE THE VOLTAGE ON THE HARNESS APPROXIMATELY 5 0 HEADLAMP SWITCH DRB CONNECTOR VOLTS NO DISCONNECT THE WITH AN OHMMETER REPAIR THE PANEL BODY CONTROL MEASURE BETWEEN IS THE RESISTANCE YES LAMP DIMMER SIGNAL MODULE C2 HARNESS GROUND AND THE PANEL BELOW 5 0 OHMS CIRCUIT FOR A CONNECTOR LAMP DIMMER SIGNAL SHORT TO GROUND FIG 1 CIRCUIT FIG 2 NO WITH AN OHMMETER AND THE PANEL LAMP REPAIR ...

Page 312: ...TEST 3A CONTINUED REPAIRING DIMMING LEVEL SWITCH FAILURE FIG 1 I N S T R U M E N T C L U S T E R 302 ...

Page 313: ...0 OHMS RETURN CIRCUIT IF OFF AND ALL LAMPS HEADLAMP SWITCH OK REPLACE THE ARE TURNED OFF RETURN CKT FIG 1 BCM YES KEY ON REPAIR THE OPEN WITH A VOLTMETER IS THE VOLTAGE NO PANEL LAMPS DIMMER MEASURE THE PANEL ABOVE 10 0 VOLTS SIGNAL CIRCUIT IF LAMPS DIMMER SIGNAL OK REPLACE THE CIRCUIT FIG 1 BCM YES WITH A TEST LIGHT REPAIR THE PANEL CONNECTED TO GROUND IS THE TEST LIGHT YES LAMPS DIMMER SIGNAL PR...

Page 314: ...TEST 4A REPAIRING ALL GAUGES NOT OPERATING PROPERLY Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 I N S T R U M E N T C L U S T E R 304 ...

Page 315: ...ISCONNECT THE WITH AN OHMMETER INSTRUMENT CLUSTER MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN C1 HARNESS GROUND AND THE BELOW 5 0 OHMS GROUND CIRCUIT CONNECTOR GROUND CIRCUIT FIG 2 YES DISCONNECT THE WITH AN OHMMETER INSTRUMENT CLUSTER MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN C2 HARNESS GROUND AND THE BELOW 5 0 OHMS GROUND CIRCUIT CONNECTOR GROUND CIRCUIT FIG 3 YES INSTALL FUS...

Page 316: ...TEST 5A IDENTIFYING THE INOPERATIVE GAUGE Perform TEST 1A Before Proceeding FIG 1 I N S T R U M E N T C L U S T E R 306 ...

Page 317: ...POSITION NOTE THIS SHOULD TO START MIC SELF ACTUATE THE DID THE SELF TEST NO PERFORM TEST TEST RELEASE THE SPECIFIED GAUGE TO PASS FOR EACH 10A BUTTON ITS CALIBRATION GAUGE POINTS FIG 1 YES NOTE IDENTIFY THE FAULTY GAUGE AND IS THE TEMPERATURE NO PERFORM TEST PERFORM THE GAUGE OPERATING 11A INDICATED TEST CORRECTLY YES IS THE FUEL GAUGE NO PERFORM TEST OPERATING 12A CORRECTLY YES IS THE SPEEDOMETE...

Page 318: ...TEST 5A CONTINUED IDENTIFYING THE INOPERATIVE GAUGE NOTES I N S T R U M E N T C L U S T E R 308 ...

Page 319: ...VEHICLE START THE ENGINE ENGINE COMMUNICATE WITH COMMUNICATION THE PCM TEST 1A YES WITH THE DRB ENTER SENSORS DOES THE DRB NO REPLACE THE AND READ ENGINE DISPLAY ENGINE RPM POWERTRAIN CONTROL RPM ABOVE 400 RPM MODULE YES WITH THE DRB ENTER THEN PCI BUS BODY BODY ENGINE INFO AND DOES THE DRB NO REPLACE THE BODY COMPUTER READ THE ENGINE DISPLAY ENGINE RPM CONTROL MODULE MONITOR RPM ABOVE 400 RPM DIS...

Page 320: ...TEST 6A REPAIRING ODOMETER NOT OPERATING PROPERLY Perform TEST 1A Before Proceeding I N S T R U M E N T C L U S T E R 310 ...

Page 321: ...URN THE IGNITION THE ODOMETER TURN DID ALL SEGMENTS NO REPLACE THE TO THE FULL OFF IGNITION TO THE ILLUMINATE INSTRUMENT POSITION RUN POSITION CLUSTER YES WITH THE DRB ENTER PERFORM BODY THEN DOES THE DRB YES VEHICLE ELECTRO MECH DISPLAY COMMUNICATION CLUSTER MIC NO RESPONSE TEST 1A NO DOES THE DRB PERFORM WITH THE DRB READ DISPLAY YES VEHICLE THE INSTRUMENT EATX BUS COMMUNICATION CLUSTER DTC S CO...

Page 322: ...TEST 7A IDENTIFYING WARNING LAMP PROBLEMS Perform TEST 1A Before Proceeding NOTES I N S T R U M E N T C L U S T E R 312 ...

Page 323: ...D3L Lamp TEST 14A Coolant Temperature LED TEST 11A Low Fuel LED TEST 12A Oil Warning LED TEST 15A Seat Belt LED TEST 16A Park Brake Warning LED TEST 17A Airbag Warning LED Perform Airbag TEST 1A Washer Fluid LED TEST 18A Door Ajar LED TEST 19A ABS LED Refer to ABS Diagnostic Manual Traction Control Active Bulb Refer to ABS Diagnostic Manaul Traction Control Off LED Refer to ABS Diagnostic Manual T...

Page 324: ...TEST 7B REPAIRING INSTRUMENT CLUSTER PRINTED CIRCUIT BOARD WARNING LAMP Perform TEST 7A Before Proceeding I N S T R U M E N T C L U S T E R 314 ...

Page 325: ... connectors Clean repair as necessary TURN IGNITION OFF IS THE INOPERATIVE NO REPLACE THE START TEST 7B REMOVE THE LAMP CRUISE OR INSTRUMENT INSTRUMENT TRAC ON CLUSTER CLUSTER YES REMOVE AND INSPECT IS THE LAMP NO THE INOPERATIVE CONDITION OK REPLACE THE LAMP WARNING LAMP YES REPLACE THE INSTRUMENT CLUSTER I N S T R U M E N T C L U S T E R 315 ...

Page 326: ...TEST 8A REPAIRING PRND3L INDICATOR MALFUNCTIONS Perform TEST 1A Before Proceeding I N S T R U M E N T C L U S T E R 316 ...

Page 327: ...UMENT CLUSTER FROM OFF TO RUN SAME TIME ILLUMINATE CIRCUIT BOARD YES WITH THE DRB WITH THE DRB SELECT SELECT MONITOR TRANSMISSION DISPLAY THEN CONTROL MODULE SHIFT LEVER NOTE ENGAGE THE MONITOR THE SLP PARKING BRAKE AT STATE OF THE SHIFT THIS TIME BEFORE LEVER STATUS PROCEEDING DOES THE SLP MOVE THE GEAR SHIFT READING MATCH THE YES REPLACE THE LEVER THROUGH ALL STATE OF THE INSTRUMENT DIFFERENT PO...

Page 328: ...TEST 9A REPAIRING CLUSTER AND PANEL ILLUMINATION PROBLEMS Perform TEST 1A Before Proceeding I N S T R U M E N T C L U S T E R 318 ...

Page 329: ...DY COMMUNICATE WITH COMMUNICATION ELECTRO MECH THE MIC TEST 1A CLUSTER MIC YES WITH THE DRB ENTER DOES THE DRB BODY COMPUTER THEN ROTATE THE DIMMER DISPLAY CHANGE NO PERFORM TEST SENSORS AND READ SWITCH TO LOW BETWEEN 3A THE DIMMING LEVEL THEN MOVE TO HIGH APPROXIMATELY 0 2 VOLTAGE AND 3 0 VOLTS YES WHILE OBSERVING TURN THE PARK THE PANEL LAMPS ARE PANEL LAMPS YES PERFORM TEST LAMPS ON ROTATE DIMM...

Page 330: ...TEST 9B REPAIRING PANEL ILLUMINATION SHORTED TO BATTERY Perform TEST 9A Before Proceeding I N S T R U M E N T C L U S T E R 320 ...

Page 331: ... CONNECTOR DIMMER SWITCH UP DIMMER SWITCH SHORT TO BATTERY AND DOWN NO DISCONNECT THE ASH OBSERVE THE PANEL DID THE PANEL REPAIR OR REPLACE RECEIVER LAMP LAMPS WHILE LAMPS FUNCTION YES THE ASH RECEIVER HARNESS ADJUSTING THE PROPERLY WITH THE FOR A SHORT TO CONNECTOR DIMMER SWITCH UP DIMMER SWITCH BATTERY AND DOWN NO DISCONNECT THE OBSERVE THE PANEL DID THE PANEL REPAIR OR REPLACE AUTO TEMP CONTROL...

Page 332: ...TEST 9B CONTINUED REPAIRING PANEL ILLUMINATION SHORTED TO BATTERY FIG 1 I N S T R U M E N T C L U S T E R 322 ...

Page 333: ... THE PANEL DISCONNECT THE LAMPS WHILE LAMPS FUNCTION YES REPAIR OR REPLACE CLOCK HARNESS ADJUSTING THE PROPERLY WITH THE THE CLOCK FOR A CONNECTOR DIMMER SWITCH UP DIMMER SWITCH SHORT TO BATTERY AND DOWN NO DISCONNECT THE KEY ON USING A REPAIR THE PANEL INSTRUMENT CLUSTER VOLTMETER MEASURE IS THE VOLTAGE YES LAMP DRIVER CKT FOR C1 HARNESS THE PANEL LAMPS ABOVE 10 0 VOLTS A SHORT TO VOLTAGE CONNECT...

Page 334: ...TEST 9C REPAIRING PANEL ILLUMINATION SHORTED TO GROUND Perform TEST 9A Before Proceeding FIG 1 I N S T R U M E N T C L U S T E R 324 ...

Page 335: ...CONTROL MEASURE BETWEEN IS THE RESISTANCE NO THE TRACTION SWITCH HARNESS GROUND AND THE BELOW 5 0 OHMS CONTROL SWITCH FOR CONNECTOR PANEL LAMPS DRIVER A SHORT TO CIRCUIT FIG 1 GROUND YES USING AN OHMMETER DISCONNECT THE MEASURE BETWEEN IS THE RESISTANCE NO REPAIR OR REPLACE RADIO C2 HARNESS GROUND AND THE BELOW 5 0 OHMS THE RADIO FOR A CONNECTOR PANEL LAMPS DRIVER SHORT TO GROUND CIRCUIT FIG 1 YES...

Page 336: ...TEST 9C CONTINUED REPAIRING PANEL ILLUMINATION SHORTED TO GROUND FIG 1 I N S T R U M E N T C L U S T E R 326 ...

Page 337: ...HE BELOW 5 0 OHMS THE PRND3L FOR A FLOOR SHIFTER IF PANEL LAMPS DRIVER SHORT TO GROUND EQUIPPED CIRCUIT FIG 1 YES USING AN OHMMETER DISCONNECT THE MEASURE BETWEEN IS THE RESISTANCE NO REPAIR OR REPLACE CLOCK HARNESS GROUND AND THE BELOW 5 0 OHMS THE CLOCK FOR A CONNECTOR PANEL LAMPS DRIVER SHORT TO GROUND CIRCUIT FIG 1 YES DISCONNECT THE USING AN OHMMETER REPAIR OR REPLACE HEADLAMP SWITCH MEASURE ...

Page 338: ...TEST 10A REPAIRING FAULTY GAUGE Perform TEST 5A Before Proceeding NOTES I N S T R U M E N T C L U S T E R 328 ...

Page 339: ...ectors Clean repair as necessary REPLACE THE CIRCUIT INSPECT THE PRINTED IS THE CONDITION NO BOARD ON THE START TEST 10A CIRCUIT BOARD ON THE OF THE CIRCUIT INSTRUMENT CLUSTER INSTRUMENT CLUSTER BOARD OK AND RECALIBRATE THE GAUGES YES REPLACE THE SUBDIAL ASSEMBLY 4 GAUGES I N S T R U M E N T C L U S T E R 329 ...

Page 340: ...TEST 11A REPAIRING TEMPERATURE GAUGE LED OPERATION Perform TEST 5A Before Proceeding NOTES I N S T R U M E N T C L U S T E R 330 ...

Page 341: ...HE IGNITION PERFORM ON CAN YOU NO VEHICLE WITH THE DRB COMMUNICATE WITH COMMUNICATION ENTER ENGINE THE PCM TEST 1A YES DOES THE DRB REFER TO THE WITH THE DRB IN DISPLAY ANY ECT YES APPROPRIATE ENGINE ENTER SENSOR TROUBLE POWERTRAIN READ DTC S CODES DIAGNOSTIC MANUAL NO WITH THE DRB THEN PCI BUS DOES THE DRB ENTER BODY ENGINE INFO AND DISPLAY NO REPLACE THE BODY BODY COMPUTER READ COOLANT APPROXIMA...

Page 342: ...TEST 12A REPAIRING FUEL GAUGE LED OPERATION Perform TEST 5A Before Proceeding FIG 1 FIG 2 FIG 3 I N S T R U M E N T C L U S T E R 332 ...

Page 343: ...HARNESS DISCONNECT THE GAUGE DISPLAYING CONNECTOR BY BODY HARNESS FULL AT ALL TIMES REMOVEING THE REAR CONNECTOR SEAT CUSHION FIG 1 WITH THE DRB ENTER TURN THE IGNITION BODY COMPUTER IS THE VOLTAGE YES CONTINUE TEST ON THEN SENSORS AND ABOVE 9 0 VOLTS 12A ON THE NEXT READ THE FUEL PAGE LEVEL VOLTAGE NO KEY OFF DISCONNECT USING AN OHMMETER REPAIR THE FUEL THE BODY CONTROL MEASURE BETWEEN IS THE RES...

Page 344: ...TEST 12A CONTINUED REPAIRING FUEL GAUGE LED OPERATION I N S T R U M E N T C L U S T E R 334 ...

Page 345: ...r as necessary TEST 12A CONTINUED FROM OBSERVE THE FUEL DID THE FUEL GAUGE NO REPLACE THE THE PREVIOUS GAUGE GO TO EMPTY INSTRUMENT PAGE CLUSTER YES CHECK THE FUEL PUMP JUMPER HARNESS BETWEEN TANK AND BODY CONNECTOR FOR A SHORT TO GROUND IF OK REPLACE THE FUEL LEVEL SENDING UNIT I N S T R U M E N T C L U S T E R 335 ...

Page 346: ...TEST 12B REPAIRING INACCURATE FUEL GAUGE Perform TEST 12A Before Proceeding FIG 1 FIG 2 FIG 3 I N S T R U M E N T C L U S T E R 336 ...

Page 347: ...DD OR MEASURE BETWEEN MATCH THE TABLE YES INSTRUMENT CLUSTER REMOVE 5 GALLONS GROUND AND THE IN FIG 3 ON BOTH FOR A INACCURATE OF FUEL THEN FUEL LEVEL SENSOR ATTEMPTS FUEL GAUGE REPEAT SIGNAL CKT FIG 2 NO LOWER THE FUEL CHECK THE FUEL TANK IS THE TANK AND TANK AND REMOVE FOR FOREIGN MATERIAL SENDING UNIT NO REPAIR OR REPLACE THE FUEL TANK AND SENDING UNIT FOR VISUAL CONDITION AS NECESSARY SENDING ...

Page 348: ...TEST 12C REPAIRING FUEL GAUGE LAMP OPERATION EMPTY AT ALL TIMES Perform TEST 12A Before Proceeding FIG 1 FIG 2 I N S T R U M E N T C L U S T E R 338 ...

Page 349: ...NG RETEST NO WITH THE DRB READ IS THE FUEL LEVEL YES PERFROM TEST THE BODY COMPUTER SENDING UNIT 2A CODES FAILURE CODE SET NO REMOVE THE REAR SEAT CONNECT A JUMPER CUSHION WIRE BETWEEN GROUND DID THE FUEL GAUGE NO REPLACE THE DISCONNECT THE BODY AND THE FUEL LEVEL READING GO TO INSTRUMENT HARNESS CONNECTOR SENSOR SIGNAL CKT FULL CLUSTER FIG 1 FIG 2 YES REMOVE FUEL PUMP MODULE ASSEMBLY REPLACE THE ...

Page 350: ...TEST 13A REPAIRING SPEEDOMETER OPERATION Perform TEST 5A Before Proceeding NOTES I N S T R U M E N T C L U S T E R 340 ...

Page 351: ...F GROUND EQUIPPED WITH PLACE THE GEAR AND PROPERLY START THE ENGINE TRACTION CONTROL SHIFT LEVER IN SUPPORT THE THE TRACTION CONTROL DRIVE VEHICLE MUST BE DISABLED OBSERVE THE DOES THE DRB DISPLAY REFER TO THE WITH THE DRB IN VEHICLE SPEED THE VEHICLE SPEED NO APPROPRIATE ENGINE ENTER WHILE INCREASING POWERTRAIN SENSORS ACCELERATING PROPORTIONALLY AS DIAGNOSTIC YOU ACCELERATE MANUAL YES WITH THE D...

Page 352: ...TEST 14A REPAIRING COMMUNICATION WITH TRANSMISSION CONTROL MODULE Perform TEST 1A Before Proceeding I N S T R U M E N T C L U S T E R 342 ...

Page 353: ...ORS INSTRUMENT CLUSTER FROM OFF TO RUN SAME TIME ILLUMINATE CIRCUIT BOARD YES WITH THE DRB WITH THE DRB SELECT SELECT MONITOR TRANSMISSION DISPLAY THEN CONTROL MODULE SHIFT LEVER NOTE ENGAGE THE MONITOR THE SLP PARKING BRAKE AT STATE OF THE SHIFT THIS TIME BEFORE LEVER STATUS PROCEEDING DOES THE SLP MOVE THE GEAR SHIFT READING MATCH THE YES REPLACE THE LEVER THROUGH ALL STATE OF THE INSTRUMENT DIF...

Page 354: ...TEST 15A REPAIRING OIL PRESSURE WARNING LAMP OPERATING IMPROPERLY Perform TEST 1A Before Proceeding FIG 1 I N S T R U M E N T C L U S T E R 344 ...

Page 355: ...THE IGNITION DID THE OIL NO CONTINUE TEST SWITCH HARNESS ON WARNING LAMP TURN 15A ON THE NEXT CONNECTOR OFF PAGE FIG 1 YES REMOVE THE OIL INSTALL AN OIL PRESSURE SWITCH PRESSURE GAUGE IN ITS PLACE REFER TO THE START AND IDLE THE IS THE GAUGE NO APPROPRIATE ENGINE READING 4 0 PSI OR SERVICE MANUAL TO GREATER AT IDLE DIAGNOSE LOW OIL PRESSURE YES ALLOW THE ENGINE IS GAUGE READING REFER TO THE TO REA...

Page 356: ...TEST 15A CONTINUED REPAIRING OIL PRESSURE WARNING LAMP OPERATING IMPROPERLY FIG 1 I N S T R U M E N T C L U S T E R 346 ...

Page 357: ...15A KEY OFF CONTINUED FROM DISCONNECT THE THE PREVIOUS INSTRUMENT CLUSTER PAGE C2 HARNESS CONNECTOR WITH AN OHMMETER REPAIR THE OIL MEASURE BETWEEN IS THE RESISTANCE YES PRESSURE SWITCH GROUND AND THE OIL BELOW 5 0 OHMS SENSE CIRCUIT FOR PRESSURE SWITCH A SHORT TO SENSE CKT FIG 1 GROUND NO REPLACE THE INSTRUMENT CLUSTER I N S T R U M E N T C L U S T E R 347 ...

Page 358: ...TEST 15B REPAIRING OIL PRESSURE WARNING LAMP OPERATING IMPROPERLY Perform TEST 15A Before Proceeding FIG 1 FIG 2 I N S T R U M E N T C L U S T E R 348 ...

Page 359: ...TWEEN THE OIL DID THE OIL YES REPLACE THE OIL PRESSURE SWITCH WARNING LAMP PRESSURE SWITCH SENSE CKT AND GND LIGHT FIG 1 NO NOTE KEEP THE DISCONNECT THE JUMPER WIRE INSTRUMENT CLUSTER CONNECTED DURING C2 HARNESS THE NEXT STEP CONNECTOR WITH AN OHMMETER REPAIR THE OPEN MEASURE BETWEEN IS THE RESISTANCE NO OIL PRESSURE GROUND AND THE OIL BELOW 5 0 OHMS SWITCH SENSE PRESSURE SWITCH CIRCUIT SENSE CKT ...

Page 360: ...TEST 16A REPAIRING SEAT BELT LED Perform TEST 1A Before Proceeding NOTES I N S T R U M E N T C L U S T E R 350 ...

Page 361: ...ir as necessary WHILE OBSERVING START TEST 16A THE SEAT BELT INDICATOR TURN THE KEY TO DID THE SEAT BELT THE SEAT BELT THE FULL OFF INDICATOR YES INDICATOR IS POSITION THEN BACK ILLUMINATE FOR OPERATING PROPERLY ON APPROXIMATELY 6 TO AT THIS TIME 10 SECONDS NO REPLACE THE INSTRUMENT CLUSTER I N S T R U M E N T C L U S T E R 351 ...

Page 362: ...TEST 17A REPAIRING PARK BRAKE WARNING LAMP OPERATING IMPROPERLY Perform TEST 1A Before Proceeding NOTES I N S T R U M E N T C L U S T E R 352 ...

Page 363: ...OPERATION INTERFERENCE NO ARE YOU IN THIS TEST BECAUSE WARNING LAMP YES PERFORM TEST DID NOT LIGHT WITH 17B AN EMPTY BRAKE FLUID RESERVOIR NO TURN IGNITION ON IS THE PARKING YES PERFORM TEST ENGINE OFF BRAKE LAMP ON 17D AFTER BULB CHECK NO DEPRESS THE DID THE PARKING NO PERFORM TEST PARKING BRAKE BRAKE LAMP TURN 17C LEVER ON YES CRANK THE ENGINE RELEASE THE WHILE MONITORING DID THE PARKING NO REPL...

Page 364: ...TEST 17B REPAIRING PARK BRAKE WARNING LAMP OPERATING IMPROPERLY Perform TEST 17A Before Proceeding FIG 1 FIG 2 FIG 3 I N S T R U M E N T C L U S T E R 354 ...

Page 365: ...EVEL DRIVER CKT AND ON SWITCH GROUND CKT FIG 2 NO CONNECT A JUMPER DISCONNECT THE WIRE BETWEEN THE RED DID THE PARKING YES REPAIR THE OPEN JUMPER WIRE BRAKE WARNING LAMP BRAKE LAMP COME GROUND CIRCUIT DRIVER CIRCUIT AND ON GROUND FIG 2 NO KEEP THE JUMPER TURN THE IGNITION WIRE CONNECTED OFF DISCONNECT THE USING AN OHMMETER REPAIR THE OPEN INSTRUMENT CLUSTER MEASURE BETWEEN IS THE RESISTANCE NO RED...

Page 366: ...TEST 17C REPAIRING PARK BRAKE WARNING LAMP OPERATING IMPROPERLY Perform TEST 17A Before Proceeding FIG 1 FIG 2 I N S T R U M E N T C L U S T E R 356 ...

Page 367: ...D DID THE PARKING YES REPLACE THE BRAKE WARNING LAMP BRAKE LAMP COME PARKING BRAKE DRIVER CIRCUIT AND ON SWITCH GROUND FIG 1 NO KEEP THE JUMPER TURN THE IGNITION WIRE CONNECTED OFF DISCONNECT THE USING AN OHMMETER REPAIR THE OPEN INSTRUMENT CLUSTER MEASURE BETWEEN IS THE RESISTANCE NO RED BRAKE WARNING C2 HARNESS GROUND AND THE RED BELOW 5 0 OHMS LAMP DRIVER CONNECTOR BRAKE WARNING LAMP CIRCUIT DR...

Page 368: ...TEST 17D REPAIRING PARK BRAKE WARNING LAMP OPERATING IMPROPERLY Perform TEST 17A Before Proceeding FIG 1 I N S T R U M E N T C L U S T E R 358 ...

Page 369: ...S REPLACE THE PARK SWITCH HARNESS WARNING LAMP GO BRAKE SWITCH CONNECTOR OUT NO DISCONNECT THE BRAKE FLUID LEVEL DID THE BRAKE YES REPLACE THE BRAKE SWITCH HARNESS WARNING LAMP GO FLUID LEVEL CONNECTOR OUT SWITCH NO TURN IGNITION OFF USING AN OHMMETER DISCONNECT THE MEASURE BETWEEN IS THE RESISTANCE NO REPLACE THE INSTRUMENT CLUSTER GROUND AND THE RED BELOW 5 0 OHMS INSTRUMENT C2 HARNESS BRAKE WAR...

Page 370: ...TEST 18A REPAIRING LOW WASHER FLUID INDICATOR OPERATING IMPROPERLY Perform TEST 1A Before Proceeding FIG 1 I N S T R U M E N T C L U S T E R 360 ...

Page 371: ...ONITOR THE IS THE LOW WASHER NO SYSTEM IS ENGINE OFF INSTRUMENT FLUID INDICATOR OPERATING PROPERLY WAIT 60 SECONDS CLUSTER ON AT THIS TIME YES DISCONNECT THE WASHER FLUID LEVEL DID THE LOW WASHER YES REPLACE THE WASHER SWITCH HARNESS FLUID INDICATOR FLUID LEVEL CONNECTOR TURN OFF SWITCH NO KEY OFF USING AN OHMMETER REPAIR THE WASHER DISCONNECT THE MEASURE BETWEEN IS THE RESISTANCE YES FLUID SWITCH...

Page 372: ...TEST 18B REPAIRING LOW WASHER FLUID INDICATOR OPERATING IMPROPERLY Perform TEST 18A Before Proceeding FIG 1 FIG 2 I N S T R U M E N T C L U S T E R 362 ...

Page 373: ...OES THE DRB BODY AND READ THE DISPLAY YES REPLACE THE WASHER ELECTRO MECH WASHER FUILD WASH FLUID FLUID LEVEL CLUSTER MIC SWITCH STATUS CLOSED SWITCH INPUT OUPUT NO CONNECT A JUMPER DOES THE DRB DISCONNECT THE WIRE BETWEEN THE DISPLAY YES REPAIR THE OPEN JUMPER WIRE WASHER FLUID SW WASH FLUID GROUND CIRCUIT SENSE CKT AND CLOSED GROUND FIG 1 NO GAIN ACCESS TO THE BACKPROBE A JUMPER DOES THE DRB REP...

Page 374: ...TEST 19A REPAIRING DOOR AJAR INDICATOR Perform TEST 1A Before Proceeding I N S T R U M E N T C L U S T E R 364 ...

Page 375: ...URING INSTRUMENT BULB CHECK CLUSTER YES DOES THE DOOR AJAR YES CONTINUE TEST INDICATOR STAY ON 19A ON THE NEXT PAGE NO WITH THE DRB ENTER DOES THE DRB BODY COMPUTER THEN OPEN THE DRIVER DISPLAY BOTH DOOR NO PERFORM DOOR INPUT OUTPUT AND AND PASSENGER AJAR STATES AJAR TEST 1A READ THE DOOR AJAR DOORS CLOSED STATES YES IS THE DOOR AJAR YES SYSTEM IS INDICATOR ON OPERATIONAL WITH NO PROBLEM FOUND NO ...

Page 376: ...TEST 19A CONTINUED REPAIRING DOOR AJAR INDICATOR NOTES I N S T R U M E N T C L U S T E R 366 ...

Page 377: ...s necessary TEST 19A CONTINUED FROM MAKE SURE ALL THE PREVIOUS DOORS ARE CLOSED PAGE WITH THE DRB ENTER DOES THE DRB BODY COMPUTER THEN DISPLAY BOTH DOOR NO PERFORM DOOR INPUT OUTPUT AND AJAR STATES AJAR TEST 1A READ THE DOOR AJAR OPEN STATES YES REPLACE THE INSTRUMENT CLUSTER I N S T R U M E N T C L U S T E R 367 ...

Page 378: ...TEST 20A REPAIRING TRUNK AJAR INDICATOR Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 I N S T R U M E N T C L U S T E R 368 ...

Page 379: ... DECKLID RELEASE WIRE BETWEEN GROUND DID THE TRUNK AJAR YES REPLACE THE SOLENOID DECKLID AND THE DECKLID AJAR INDICATOR DECKLID AJAR AJAR HARNESS SWITCH SENSE CKT ILLUMINATE SWITCH CONNECTOR FIG 1 NO WITH JUMPER WIRE USING AN OHMMETER REPAIR THE OPEN STILL CONNECTED MEASURE BETWEEN IS THE RESISTANCE NO DECKLID AJAR DISCONNECT THE GROUND AND THE BELOW 5 0 OHMS SWITCH SENSE INSTRUMENT CLUSTER DECKLI...

Page 380: ...TEST 20A CONTINUED REPAIRING TRUNK AJAR INDICATOR FIG 1 I N S T R U M E N T C L U S T E R 370 ...

Page 381: ...RN THE IGNITION DECKLID RELEASE IS THE TRUNK AJAR NO REPLACE THE OFF SOLENOID DECKLID INDICATOR ON DECKLID AJAR AJAR HARNESS SWITCH CONNECTOR YES DISCONNECT THE USING AN OHMMETER REPAIR THE DECKLID INSTRUMENT CLUSTER MEASURE BETWEEN IS THE RESISTANCE YES AJAR SWITCH SENSE C2 HARNESS GROUND AND THE BELOW 5 0 OHMS CIRCUIT FOR A CONNECTOR DECKLID AJAR SWITCH SHORT TO GROUND SENSE CKT FIG 1 NO REPLACE...

Page 382: ...TEST 1A INDENTIFYING INTERIOR LIGHTING SYSTEM FAILURES Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding I N T E R I O R L I G H T I N G S Y S T E M 372 ...

Page 383: ...ed perform Vehicle Communication TEST 1A 2 With the DRB select Read DTCs If the code Headlamp Switch Input Failure is present perform Exterior Lighting TEST 1A PROBLEM WITH PERFORM Courtesy Lamp output to short to battery TEST 2A Courtesy Lamps inoperative from all Doors and Courtesy Lamp Switch TEST 3A One inoperative Courtesy Lamp TEST 4A Courtesy Lamps remain on TEST 5A Courtesy Lamp Switch ino...

Page 384: ...TEST 2A REPAIRING COURTESY LAMP OUTPUT SHORT TO BATTERY Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 I N T E R I O R L I G H T I N G S Y S T E M 374 ...

Page 385: ...IG 2 YES NOTE IT MAY BE REMOVE THE LEFT NECESSARY TO FRONT DOOR REMOVE EACH COURTESY LAMP COURTESY LAMP TO PERFORM THIS STEP REPLACE THE 2 AMP CONNECT ONE END OF FUSE IN THE JUMPER THE FUSED JUMPER WIRE WIRE TO GROUND AND WITH THE OTHER END PROBE THE NO REPLACE THE COURTESY LAMP DID THE FUSE OPEN SHORTED COURTESY DRIVER CIRCUIT LAMP BULB FIG 3 YES REMOVE EACH AND OBSERVE THE 2 DID THE FUSE REPLACE...

Page 386: ...TEST 3A REPAIRING COURTESY LAMPS INOPERATIVE FROM ALL DOORS AND COURTESY LAMP SWITCH Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 I N T E R I O R L I G H T I N G S Y S T E M 376 ...

Page 387: ...TESY LAMP SWITCH HEADLINER HARNESS IS OFF FOR THE CONNECTOR FOLLOWING STEPS FIG 1 WITH A VOLTMETER BACKPROBE THE IS THE VOLTAGE NO REPLACE THE FUSED B ABOVE 10 0 VOLTS JUNCTION BLOCK CIRCUIT CAVITY 6 FIG 2 YES WITH A VOLTMETER REPAIR THE OPEN GAIN ACCESS TO THE MEASURE THE FUSED IS THE VOLTAGE NO FUSED B LEFT REAR DOOR B CIRCUIT ABOVE 10 0 VOLTS CIRCUIT BETWEEN COURTESY LAMP THE J B AND THE FIG 3 ...

Page 388: ...TEST 3A CONTINUED REPAIRING COURTESY LAMPS INOPERATIVE FROM ALL DOORS AND COURTESY LAMPS SWITCH I N T E R I O R L I G H T I N G S Y S T E M 378 ...

Page 389: ... repair as necessary TEST 3A CONTINUED FROM STOP THE COURTESY THE PREVIOUS LAMP ACTUATION PAGE TEST WITH THE DRB ENTER DOES THE DRB OPEN THE DRIVER INPUT OUTPUT AND DISPLAY YES REPLACE THE BODY DOOR READ THE DRIVER DRDOOR AJAR SW CONTROL MODULE DOOR AJAR SWITCH CLOSED STATUS NO PERFORM DOOR AJAR TEST 1A I N T E R I O R L I G H T I N G S Y S T E M 379 ...

Page 390: ...TEST 3B REPAIRING COURTESY LAMPS INOPERATIVE FROM ALL DOORS AND COURTESY LAMPS SWITCH Perform TEST 3A Before Proceeding FIG 1 I N T E R I O R L I G H T I N G S Y S T E M 380 ...

Page 391: ...tors Clean repair as necessary REMOVE THE BODY CONTROL MODULE START TEST 3B FROM THE JUNCTION BLOCK AND WITH THE OTHER USING A JUMPER END PROBE THE J B DID THE COURTESY YES REPLACE THE BODY WIRE CONNECT ONE 20 WAY INTERNAL LAMPS LIGHT CONTROL MODULE END TO GROUND CONNECTOR CAVITY 2 FIG 1 NO REPLACE THE JUNCTION BLOCK I N T E R I O R L I G H T I N G S Y S T E M 381 ...

Page 392: ...TEST 3C REPAIRING INOPERATIVE FRONT DOOR COURTESY LAMPS Perform TEST 3A Before Proceeding FIG 1 FIG 2 FIG 3 I N T E R I O R L I G H T I N G S Y S T E M 382 ...

Page 393: ...CONNECTOR FUSED B CIRCUIT ABOVE 10 0 VOLTS JUNCTION BLOCK CAVITY 5 FIG 1 FIG 2 YES GAIN ACCESS TO THE WITH A VOLTMETER REPAIR THE OPEN LEFT DOOR COURTESY MEASURE THE FUSED IS THE VOLTAGE NO FUSED B LAMP HARNESS B CIRCUIT ABOVE 10 0 VOLTS CIRCUIT BETWEEN CONNECTOR THE J B AND THE FIG 3 SPLICE YES CONNECT A JUMPER C6 HARNESS CONNECTOR REPAIR THE OPEN WIRE BETWEEN CAVITY 8 COURTESY DID THE COURTESY N...

Page 394: ...TEST 4A REPAIRING ONE INOPERATIVE COURTESY LAMP Perform TEST 1A Before Proceeding FIG 1 I N T E R I O R L I G H T I N G S Y S T E M 384 ...

Page 395: ...ry NOTE FOR LOCATION OF ALL COMPONENTS START TEST 4A SEE GENERAL INFO 4 0 REMOVE THE YES INOPERATIVE BULB IS THE BULB OPEN REPLACE THE BULB NO USING A VOLTMETER MESURE THE FUSED IS THE VOLTAGE YES REPAIR THE OPEN B CIRCUIT ABOVE 10 0 VOLTS COURTESY LAMP DRIVER CIRCUIT FIG 1 NO REPAIR THE OPEN FUSED B CIRCUIT I N T E R I O R L I G H T I N G S Y S T E M 385 ...

Page 396: ...TEST 5A REPAIRING COURTESY LAMPS ON AT ALL TIMES Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 I N T E R I O R L I G H T I N G S Y S T E M 386 ...

Page 397: ... AJAR TEST 1A DOOR AJAR SWITCH CLOSED STATUS NO WITH THE DRB READ DOES THE DRB THE OTHER DOOR DISPLAY YES PERFORM DOOR AJAR SWITCH DOOR AJAR SW AJAR TEST 1A STATUS CLOSED NO REMOVE THE BODY CONTROL MODULE DID THE COURTESY YES REPLACE THE BODY FROM THE JUNCTION LAMPS GO OFF CONTROL MODULE BLOCK NO DISCONNECT THE DISCONNECT THE JUNCTION BLOCK C6 JUNCTION BLOCK AND C7 HARNESS HEADLINER HARNESS CONNEC...

Page 398: ...TEST 5A CONTINUED REPAIRING COURTESY LAMPS ON AT ALL TIMES FIG 1 I N T E R I O R L I G H T I N G S Y S T E M 388 ...

Page 399: ...DRIVER CIRCUIT FOR OTHER CAVITY 5 A SHORT TO FUSED B CKT GROUND NO WITH AN OHMMETER REPAIR THE REMOVE THE JUMPER MEASURE BETWEEN J B IS THE RESISTANCE YES COURTESY LAMP WIRE HEADLINER HARNESS BELOW 5 0 OHMS DRIVER CIRCUIT FOR CONN CAVITIES 8 1 A SHORT TO THE FIG 1 GROUND CIRCUIT NO WITH AN OHMMETER REPAIR THE MEASURE BETWEEN J B IS THE RESISTANCE YES COURTESY LAMP HEADLINER HARNESS BELOW 5 0 OHMS ...

Page 400: ...TEST 6A REPAIRING COURTESY LAMP SWITCH INOPERATIVE Perform TEST 1A Before Proceeding I N T E R I O R L I G H T I N G S Y S T E M 390 ...

Page 401: ... necessary ENSURE ALL DOOR ARE CLOSED AND THE START TEST 6A COURTESY LAMPS ARE OFF WITH THE DRB ENTER INPUT OUTPUT AND TURN THE COURTESY IS THE COURTESY YES REPLACE THE BODY READ THE COURTESY LAMP SWITCH TO THE LAMPS STATUS ON CONTROL MODULE LAMP SWITCH ON POSITION STATUS NO REPLACE THE HEADLAMP SWITCH I N T E R I O R L I G H T I N G S Y S T E M 391 ...

Page 402: ...TEST 1A IDENTIFYING MANUAL TEMPERATURE CONTROL PROBLEMS Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding FIG 1 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 392 ...

Page 403: ...not show battery voltage when the ignition key is on perform Vehicle Communication TEST 14A 3 With the DRB select Body System Body Computer Read DTCs If any climate related codes are present perform TEST 1B PROBLEM WITH No Trouble Codes PERFORM A C Clutch Operations ATC TEST 14A Blend Door Inoperative ATC TEST 15A Blower Motor Inoperative TEST 8A Blower Speeds Incorrect TEST 9A Control Head Illumi...

Page 404: ...TEST 1B IDENTIFYING CLIMATE CONTROL TROUBLE CODES Perform TEST 1A Before Proceeding M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 394 ...

Page 405: ...is at fault 3 If no codes are seen observe the climate system performance then continue TEST 1A DIAGNOSTIC TROUBLE CODE DTC PERFORM Ambient Temperature Sensor Failure OTIS TEST 2A A C Control A C Switch Failure TEST 2A A C Control EBL Switch Failure TEST 3A A C Control Blend Input Open or Shorted to Ground TEST 4A A C Control Blend Door Input Shorted to Battery TEST 5A A C Control Mode Door Input ...

Page 406: ...TEST 2A REPAIRING A C CONTROL A C SWITCH FAILURE TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 396 ...

Page 407: ...SERVE THE MODE IS THE VOLTAGE YES REPLACE THE C1 12 WAY HARNESS SWITCH MUX APPROXIMATELY 5 0 A C HEATER CONTROL CONNECTOR VOLTAGE VOLTS HEAD FIG 1 NO DISCONNECT THE BODY KEY OFF USING AN REPAIR THE MODE CONTROL MODULE C2 OHMMETER MEASURE IS THE RESISTANCE YES SWITCH MUX CIRCUIT CONNECTOR BETWEEN GROUND AND BELOW 100 0 OHMS FOR A SHORT TO THE MODE SWITCH GROUND EE GENERAL INFO 4 0 MUX CKT FIG 1 NO ...

Page 408: ...TEST 2A CONTINUED REPAIRING A C CONTROL A C SWITCH FAILURE TROUBLE CODE M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 398 ...

Page 409: ... TIMES TIMES HEAD NO WITH THE BUTTON WITH THE DRB READ RELEASED IS THE NO REPLACE THE THE MODE SWITCH VOLTAGE A C HEATER CONTROL MUX VOLTAGE APPROXIMATELY 4 2 HEAD VOLTS YES PRESS AND HOLD THE THE SWITCH IS A C SWITCH ON THE OBSERVE THE MODE IS THE VOLTAGE YES OPERATING PROPERLY A C HEATER CONTROL SWITCH MUX APPROXIMATELY 0 45 AT THIS TIME HEAD VOLTAGE VOLTS RETRY THE SYSTEM AND RECHECK DTC s NO R...

Page 410: ...TEST 3A REPAIRING A C CONTROL EBL SWITCH FAILURE TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 400 ...

Page 411: ...SERVE THE MODE IS THE VOLTAGE YES REPLACE THE C1 12 WAY HARNESS SWITCH MUX APPROXIMATELY 5 0 A C HEATER CONTROL CONNECTOR VOLTAGE VOLTS HEAD FIG 1 NO DISCONNECT THE BODY KEY OFF USING AN REPAIR THE MODE CONTROL MODULE C2 OHMMETER MEASURE IS THE RESISTANCE YES SWITCH MUX CIRCUIT CONNECTOR BETWEEN GROUND AND BELOW 100 0 OHMS FOR A SHORT TO THE MODE SWITCH GROUND EE GENERAL INFO 4 0 MUX CKT FIG 1 NO ...

Page 412: ...TEST 3A CONTINUED REPAIRING A C CONTROL EBL SWITCH FAILURE TROUBLE CODE M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 402 ...

Page 413: ... TIMES TIMES HEAD NO WITH THE BUTTON WITH THE DRB READ RELEASED IS THE NO REPLACE THE THE MODE SWITCH VOLTAGE A C HEATER CONTROL MUX VOLTAGE APPROXIMATELY 4 2 HEAD VOLTS YES PRESS AND HOLD THE THE SWITCH IS REAR DEFOGGER OBSERVE THE MODE IS THE VOLTAGE YES OPERATING PROPERLY SWITCH ON THE SWITCH MUX APPROXIMATELY 0 25 AT THIS TIME A C HEATER CONTROL VOLTAGE VOLTS RETRY THE SYSTEM HEAD AND RECHECK ...

Page 414: ...TEST 4A REPAIRING A C CONTROL BLEND DOOR INPUT OPEN OR SHORTED TO GROUND TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 FIG 2 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 404 ...

Page 415: ...O 4 0 FIG 1 GROUND NO WITH AN OHMMETER REPAIR THE MEASURE BETWEEN IS THE RESISTANCE YES TEMPERATURE SELECT SENSOR GROUND CKT BELOW 5 0 OHMS SIGNAL CIRCUIT FOR AND THE TEMP SELECT A SHORT TO SENSOR SIGNAL CKT FIG 1 GROUND CIRCUIT NO CONNECT A JUMPER USING AN OHMMETER WIRE BETWEEN THE MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN TEMPERATURE SELECT GROUND AND THE BELOW 5 0 OHMS TEMPERATURE SE...

Page 416: ...TEST 5A REPAIRING A C CONTROL BLEND DOOR INPUT SHORTED TO BATTERY TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 FIG 2 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 406 ...

Page 417: ...EASURE THE IS THE VOLTAGE NO REPLACE THE HARNESS CONNECTOR TEMPERATURE SELECT ABOVE 0 5 VOLTS A C HEATER CONTROL SIGNAL CIRCUIT HEAD FIG 1 FIG 1 YES DISCONNECT THE BODY USING A VOLTMETER REPAIR THE CONTROL MODULE C2 MEASURE THE IS THE VOLTAGE YES TEMPERATURE SELECT HARNESS CONNECTOR TEMPERATURE SELECT ABOVE 0 2 VOLTS SIGNAL CIRCUIT FOR SIGNAL CIRCUIT A SHORT TO SEE GENERAL INFO 4 0 FIG 2 VOLTAGE N...

Page 418: ...TEST 6A REPAIRING A C CONTROL MODE DOOR INPUT OPEN OR SHORTED TO BATTERY TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 FIG 2 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 408 ...

Page 419: ...H MUX CIRCUIT ENGINE OFF SWITCH MUX ABOVE 0 5 VOLTS FOR A SHORT TO CIRCUIT BATTERY FIG 2 NO KEY OFF CONNECT A USING AN OHMMETER JUMPER WIRE FROM THE MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN MODE SWITCH MUX GROUND AND THE MODE BELOW 5 0 OHMS MODE SWITCH MUX CIRCUIT TO GROUND SWITCH MUX CIRCUIT CIRCUIT FIG 2 FIG 1 YES REMOVE THE JUMPER RECONNECT THE BODY WIRE CONTROL MODULE C2 HARNESS CO...

Page 420: ...TEST 7A REPAIRING A C CONTROL MODE DOOR INPUT SHORTED TO GROUND TROUBLE CODE Perform TEST 1B Before Proceeding FIG 1 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 410 ...

Page 421: ...ORT TO THE SENSOR CONNECTOR AND THE MODE SWITCH GROUND CKT IF OK FIG 1 MUX CKT FIG 1 REPLACE THE BCM NO USING AN OHMMETER MEASURE BETWEEN IS THE RESISTANCE NO REPLACE THE GROUND AND THE MODE BELOW 100 0 OHMS A C HEATER CONTROL SWITCH MUX CIRCUIT HEAD FIG 1 YES DISCONNECT THE BODY USING AN OHMMETER REPAIR THE MODE CONTROL MODULE C2 MEASURE BETWEEN IS THE RESISTANCE YES SWITCH MUX CIRCUIT HARNESS CO...

Page 422: ...TEST 8A REPAIRING INOPERATIVE BLOWER MOTOR Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 412 ...

Page 423: ...N THE BLOWER HARNESS CONNECTOR SWITCH OFF SEE GENERAL INFO 4 0 USING A VOLTMETER REPAIR THE OPEN MEASURE THE FUSED IS THE VOLTAGE NO FUSED IGNITION IGNITION SWITCH ABOVE 10 0 VOLTS SWITCH OUTPUT OUTPUT CIRCUIT CIRCUIT FIG 2 YES RECONNECT THE USING A VOLTMETER BLOWER MOTOR BACKPROBE AND IS THE VOLTAGE NO REPLACE THE BLOWER RESISTOR HARNESS MEASURE THE FUSED ABOVE 10 0 VOLTS MOTOR RESISTOR CONNECTOR...

Page 424: ...TEST 8A CONTINUED REPAIRING INOPERATIVE BLOWER MOTOR FIG 1 FIG 2 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 414 ...

Page 425: ...E THE JUMPER A C HEATER CONTROL WIRE C2 10 WAY HARNESS CONNECTOR FIG 2 CONNECT A JUMPER WIRE BETWEEN THE HI NOTE THE IGNITION DID THE BLOWER NO CONTINUE TEST BLOWER MOTOR DRIVER IS STILL ON MOTOR RUN ON HIGH 8A ON THE NEXT CIRCUIT AND GROUND ENGINE OFF SPEED PAGE FIG 2 YES USING AN OHMMETER TURN THE IGNITION MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN OFF GROUND AND THE BELOW 5 0 OHMS GRO...

Page 426: ...TEST 8A CONTINUED REPAIRING INOPERATIVE BLOWER MOTOR FIG 1 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 416 ...

Page 427: ...OTOR THE PREVIOUS RESISTOR HARNESS PAGE CONNECTOR USING AN OHMMETER THE BLOWER MOTOR MEASURE THE HI RESISTOR AND THE IS THE RESISTANCE NO REPAIR THE OPEN HI BLOWER MOTOR A C HEATER C2 BELOW 5 0 OHMS BLOWER MOTOR DRIVER CIRCUIT HARNESS CONNECTORS DRIVER CIRCUIT BETWEEN FIG 1 YES REPLACE THE BLOWER MOTOR RESISTOR M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 417 ...

Page 428: ...TEST 8B REPAIRING SHORTED BLOWER MOTOR CIRCUIT Perform TEST 8A Before Proceeding FIG 1 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 418 ...

Page 429: ...R USING AN OHMMETER MOTOR AND RESISTOR BACKPROBE AND IS THE RESISTANCE YES CONTINUE TEST ARE STILL MEASURE BETWEEN GND BELOW 5 0 OHMS 8B ON THE NEXT CONNECTED THE BLOWER MOTOR PAGE DRIVER CKT FIG 1 NO TURN IGNITION ON ENGINE OFF DOES THE BLOWER NO REPLACE THE BLOWER REPLACE FUSE 23 OPERATE WITHOUT MOTOR TURN BLOWER ON BLOWING FUSE HIGH SPEED YES REPAIR COMPLETE M A N U A L T E M P E R A T U R E C ...

Page 430: ...TEST 8B CONTINUED REPAIRING SHORTED BLOWER MOTOR CIRCUIT FIG 1 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 420 ...

Page 431: ...FROM BLOWER MOTOR THE PREVIOUS RESISTOR HARNESS PAGE CONNECTOR FIG 1 USING AN OHMMETER REPAIR THE FUSED MEASURE BETWEEN IS THE RESISTANCE YES IGNITION SWITCH GROUND AND THE FUSED BELOW 5 0 OHMS OUTPUT CIRCUIT FOR IGNITION SWITCH A SHORT TO OUTPUT CKT FIG 1 GROUND NO REPLACE THE BLOWER MOTOR AND FUSE 23 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 421 ...

Page 432: ...TEST 9A REPAIRING INCORRECT BLOWER MOTOR SPEEDS Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 422 ...

Page 433: ...MOTOR DRIVER CKTS 10 BK TN HI BLO MTR ON EACH CIRCUIT HEAD LISTED FIG 1 DRIVER FIG 1 NO KEY OFF DISCONNECT THE BLOWER MOTOR USE AN OHMMETER IN RESISTOR HARNESS THE FOLLOWING CONNECTOR STEPS FIG 2 MEASURE THE RESISTANCE OF THE ABOVE 10 0 VOLTS CIRCUIT S THAT IN THE PREVIOUS DID NOT MEASURE STEP FROM THE TO THE BLOWER IS THE RESISTANCE REPAIR THE OPEN A C HEATER CONTROL MOTOR RESISTOR BELOW 5 0 OHMS...

Page 434: ...TEST 10A REPAIRING CONTROL HEAD ILLUMINATION Perform TEST 1A Before Proceeding FIG 1 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 424 ...

Page 435: ... NO REPAIR THE OPEN GROUND AND THE BELOW 5 0 OHMS GROUND CIRCUIT GROUND CIRCUIT CAV 3 FIG 1 YES USING A VOLTMETER TURN THE PARK MEASURE THE PANEL LAMPS ON LAMPS DRIVER CIRCUIT FIG 1 ROTATE THE DIMMER DOES THE VOLTAGE SWITCH THUMB WHEEL RANGE FROM BELOW YES REPLACE THE BULBS AND OBSERVE THE 3 5 TO ABOVE 9 0 IN THE A C HEATER VOLTAGE VOLTS WHEN THUMB CONTROL HEAD WHEEL IS ROTATED NO REPAIR THE OPEN ...

Page 436: ...TEST 11A REPAIRING INOPERATIVE CONTROL HEAD SWITCH Perform TEST 1A Before Proceeding M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 426 ...

Page 437: ...EST 11A WITH THE A C 11A ON THE NEXT SWITCH PAGE NO USING THE DRB ENTER BODY OBSERVE THE MODE COMPUTER THEN SWITCH MUX SENSORS AND VOLTAGE DID THE VOLTAGE DROP PRESS AND HOLD THE TO APPROXIMATELY 0 2 NO REPLACE THE REAR DEFOGGER VOLTS WHEN THE A C HEATER CONTROL SWITCH SWITCH WAS PRESSED HEAD YES SWITCH IS OPERATING PROPERLY AT THIS TIME M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M ...

Page 438: ...TEST 11A CONTINUED REPAIRING INOPERATIVE CONTROL HEAD SWITCH M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 428 ...

Page 439: ...ER THEN PAGE SENSORS AND DID THE VOLTAGE DROP OBSERVE THE MODE PRESS AND HOLD THE TO APPROXIMATELY 0 4 NO REPLACE THE SWITCH MUX A C SWITCH VOLTS WHEN THE A C HEATER CONTROL VOLTAGE SWITCH WAS PRESSED HEAD YES SWITCH IS OPERATING PROPERLY AT THIS TIME CHECK THE FAN OFF CKT FOR AN OPEN CKT IF BCM THINKS FAN IS OFF IT WILL NOT TURN ON A C LED M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E...

Page 440: ...TEST 12A REPAIRING REAR WINDOW DEFOGGER Perform TEST 1A Before Proceeding FIG 1 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 430 ...

Page 441: ...R REPAIR THE OPEN BACKPROBE IS THE RESISTANCE NO GROUND CIRCUIT TO TURN IGNITION OFF G ND BELOW 5 0 OHMS THE REAR WINDOW DEFOGGER GLASS ELEMENTS YES TURN IGNITION ON USING A VOLTMETER REPAIR THE REAR TURN THE REAR BACKPROBE THE REAR IS THE VOLTAGE YES WINDOW DEFROSTER WINDOW DEFOGGER DEFOGGER RELAY ABOVE 10 0 VOLTS BROKEN ELEMENT S SWITCH ON OUTPUT CKT AT RIGHT AS NECESSARY REAR GLASS GRID NO DISC...

Page 442: ...TEST 12A CONTINUED REPAIRING REAR WINDOW DEFOGGER FIG 1 FIG 2 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 432 ...

Page 443: ...T A TEST JUMPER WIRE LIGHT BETWEEN THE FUSED B AND THE REAR DEFOGGER NOTE MAKE SURE REAR DOES THE TEST RELAY CONTROL CKTS DEFROSTER SWITCH IS LIGHT ILLUMINATE YES REPLACE THE REAR CAVITIES 2 AND 4 STILL TURNED ON BY WHEN THE SWITCH IS WINDOW DEFOGGER SEEING LED INDICATOR ON RELAY FIG 1 ON THE SWITCH NO KEY OFF CONNECT A JUMPER DISCONNECT THE BODY WIRE FROM REAR CONTROL MODULE C4 DEFOGGER RELAY HAR...

Page 444: ...TEST 12B REPAIRING REAR WINDOW DEFOGGER Perform TEST 12A Before Proceeding FIG 1 FIG 2 M A N U A L T E M P E R A T U R E C O N T R O L S Y S T E M 434 ...

Page 445: ...ER REPAIR THE FUSED MEASURE BETWEEN IS THE RESISTANCE YES B CKT FOR A GROUND AND BOTH BELOW 5 0 OHMS SHORT TO GROUND FUSED B CIRCUITS AND REPLACE THE FIG 2 PDC EBL FUSE NO REPLACE THE PDC REINSTALL THE REAR EBL FUSE WINDOW DEFOGGER RELAY TURN IGNITION ON DID THE REAR REPAIR REAR DEFOGGER ENGINE OFF DEFOGGER OPERATE NO RELAY OUTPUT CKT FOR OK WITHOUT BLOWING A SHORT TO GROUND TURN THE REAR THE FUSE...

Page 446: ...es are present record the codes then erase them Monitor the DRB for DTC s and operate all movements from the switches and the RKE reset both memory positions and operate the seat heaters When the first code appears stop and perform the respected repair procedure from the list below If there are no codes present proceed to step 3 TROUBLE CODE PERFORM EEPROM Refresh Failure Replace MHSMM Ignition St...

Page 447: ... Switch Stuck in High State TEST 31A Right Heated Seat Switch Open Shorted to Ground TEST 32A Right Thermistor Out of Range Low TEST 33A Right Thermistor Out of Range High TEST 34A Left Mirror Horizontal Sensor Out of Range Low TEST 35A Left Mirror Horizontal Sensor Out of Range High TEST 36A Left Mirror Vertical Sensor Out of Range Low TEST 37A Left Mirror Vertical Sensor Out of Range High TEST 3...

Page 448: ...TEST 2A REPAIRING FRONT RISER DOWN POSITION STUCK TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 438 ...

Page 449: ...METER POWER SEAT SWITCH MEASURE THE SEAT IS THE VOLTAGE NO REPLACE THE POWER 10 WAY HARNESS FRONT DOWN SWITCH ABOVE 0 5 VOLTS SEAT SWITCH CONNECTOR SENSE CKT CAV 6 FIG 1 YES USING A VOLTMETER DISCONNECT THE MEASURE THE SEAT IS THE VOLTAGE NO REPLACE THE MEMORY MHSMM C1 HARNESS FRONT DOWN SWITCH ABOVE 0 5 VOLTS HEATED SEAT MIRROR CONNECTOR SENSE CKT CAV 6 MODULE FIG 1 YES REPAIR THE SEAT FRONT DOWN...

Page 450: ...TEST 3A REPAIRING FRONT RISER UP POSITION STUCK TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 440 ...

Page 451: ...LTMETER POWER SEAT SWITCH MEASURE THE SEAT IS THE VOLTAGE NO REPLACE THE POWER 10 WAY HARNESS FRONT UP SWITCH ABOVE 0 5 VOLTS SEAT SWITCH CONNECTOR SENSE CKT CAV 9 FIG 1 YES USING A VOLTMETER DISCONNECT THE MEASURE THE SEAT IS THE VOLTAGE NO REPLACE THE MEMORY MHSMM C1 HARNESS FRONT UP SWITCH ABOVE 0 5 VOLTS HEATED SEAT MIRROR CONNECTOR SENSE CKT CAV 9 MODULE FIG 1 YES REPAIR THE SEAT FRONT UP SWI...

Page 452: ...TEST 4A REPAIRING FRONT RISER SENSOR OUT OF RANGE LOW TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 442 ...

Page 453: ...RNESS MEMORY SEAT CONNECTOR MODULE AND SENSORS READ THE FRONT IS THE VOLTAGE NO REPLACE THE MEMORY RISER POS SENSOR BELOW 0 7 VOLTS HEATED SEAT MIRROR VOLTAGE MODULE YES DISCONNECT THE USING AN OHMMETER REPAIR THE FRONT FRONT RISER MEASURE THE FRONT IS THE RESISTANCE YES RISER POSITION POSITION SENSOR RISER POS SIGNAL CKT BELOW 1000 1K SIGNAL CKT FOR A HARNESS CAV B TO GROUND OHMS SHORT TO GROUND ...

Page 454: ...TEST 5A REPAIRING FRONT RISER SENSOR OUT OF RANGE HIGH TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 444 ...

Page 455: ...1 HARNESS MEMORY SEAT CONNECTOR MODULE AND SENSORS READ THE FRONT IS THE VOLTAGE NO REPLACE THE MEMORY RISER POS SENSOR ABOVE 4 5 VOLTS HEATED SEAT MIRROR VOLTAGE MODULE YES DISCONNECT THE USING A VOLTMETER REPAIR THE FRONT FRONT RISER MEASURE THE FRONT IS THE VOLTAGE YES RISER POSITION POSITION SENSOR RISER POS SIGNAL CKT ABOVE 0 2 VOLTS SIGNAL CKT FOR A HARNESS CAV B TO GROUND SHORT TO VOLTAGE C...

Page 456: ...TEST 6A REPAIRING REAR RISER DOWN POSITION STUCK TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 446 ...

Page 457: ...TER POWER SEAT SWITCH MEASURE SEAT REAR IS THE VOLTAGE NO REPLACE THE POWER 10 WAY HARNESS DOWN SWITCH SENSE ABOVE 0 5 VOLTS SEAT SWITCH CONNECTOR CKT CAV 7 TO GND FIG 1 YES USING A VOLTMETER DISCONNECT THE MEASURE SEAT REAR IS THE VOLTAGE NO REPLACE THE MEMORY MHSMM C1 HARNESS DOWN SWITCH SENSE ABOVE 0 5 VOLTS HEATED SEAT MIRROR CONNECTOR CKT CAV 7 TO GND MODULE FIG 1 YES REPAIR THE SEAT REAR DOW...

Page 458: ...TEST 7A REPAIRING REAR RISER UP POSITION STUCK TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 448 ...

Page 459: ...ER POWER SEAT SWITCH MEASURE SEAT REAR UP IS THE VOLTAGE NO REPLACE THE POWER 10 WAY HARNESS SWITCH SENSE CKT ABOVE 0 5 VOLTS SEAT SWITCH CONNECTOR CAV 8 TO GROUND FIG 1 YES USING A VOLTMETER DISCONNECT THE MEASURE SEAT REAR UP IS THE VOLTAGE NO REPLACE THE MEMORY MHSMM C1 HARNESS SWITCH SENSE CKT ABOVE 0 5 VOLTS HEATED SEAT MIRROR CONNECTOR CAV 8 TO GROUND MODULE FIG 1 YES REPAIR THE SEAT REAR UP...

Page 460: ...TEST 8A REPAIRING REAR RISER SENSOR OUT OF RANGE LOW TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 450 ...

Page 461: ... HARNESS MEMORY SEAT CONNECTOR MODULE AND SENSORS READ THE REAR IS THE VOLTAGE NO REPLACE THE MEMORY RISER POS SENSOR BELOW 0 6 VOLTS HEATED SEAT MIRROR VOLTAGE MODULE YES DISCONNECT THE USING AN OHMMETER REPAIR THE REAR REAR RISER MEASURE THE REAR IS THE RESISTANCE YES RISER POSITION POSITION SENSOR RISER POSITION SIG BELOW 1000 1K SIGNAL CKT FOR A HARNESS CKT CAV B TO GND OHMS SHORT TO GROUND CO...

Page 462: ...TEST 9A REPAIRING REAR RISER SENSOR OUT OF RANGE HIGH TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 452 ...

Page 463: ...1 HARNESS MEMORY SEAT CONNECTOR MODULE AND SENSORS READ THE REAR IS THE VOLTAGE NO REPLACE THE MEMORY RISER POS SENSOR ABOVE 4 5 VOLTS HEATED SEAT MIRROR VOLTAGE MODULE YES DISCONNECT THE USING AN VOLTMETER REPAIR THE REAR REAR RISER MEASURE THE REAR IS THE VOLTAGE YES RISER POSITION POSITION SENSOR RISER POS SIGNAL CKT ABOVE 0 2 VOLTS SIGNAL CKT FOR A HARNESS CAV B TO GROUND SHORT TO VOLTAGE CONN...

Page 464: ...TEST 10A REPAIRING HORIZONTAL FORWARD POSITION STUCK TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 454 ...

Page 465: ...WER SEAT SWITCH MEASURE SEAT HORIZ IS THE VOLTAGE NO REPLACE THE POWER 10 WAY HARNESS FORWARD SW SENSE CKT ABOVE 0 5 VOLTS SEAT SWITCH CONNECTOR CAV 10 TO GROUND FIG 1 YES USING A VOLTMETER DISCONNECT THE MEASURE SEAT HORIZ IS THE VOLTAGE NO REPLACE THE MEMORY MHSMM C1 HARNESS FORWARD SWITCH SENSE ABOVE 0 5 VOLTS HEATED SEAT MIRROR CONNECTOR CKT CAV 10 TO GND MODULE FIG 1 YES REPAIR THE SEAT HORIZ...

Page 466: ...TEST 11A REPAIRING HORIZONTAL REARWARD POSITION STUCK TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 456 ...

Page 467: ... POWER SEAT SWITCH MEASURE SEAT HORIZ IS THE VOLTAGE NO REPLACE THE POWER 10 WAY HARNESS REARWARD SW SENSE ABOVE 0 5 VOLTS SEAT SWITCH CONNECTOR CKT CAV 3 TO GND FIG 1 YES USING A VOLTMETER DISCONNECT THE MEASURE SEAT HORIZ IS THE VOLTAGE NO REPLACE THE MEMORY MHSMM C1 HARNESS REARWARD SW SENSE ABOVE 0 5 VOLTS HEATED SEAT MIRROR CONNECTOR CKT CAV 3 TO GND MODULE FIG 1 YES REPAIR THE SEAT HORIZONTA...

Page 468: ...TEST 12A REPAIRING HORIZONTAL SENSOR OUT OF RANGE LOW TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 458 ...

Page 469: ...RNESS MEMORY SEAT CONNECTOR MODULE AND SENSORS READ THE HORIZ IS THE VOLTAGE NO REPLACE THE MEMORY POSITION SENSOR BELOW 0 6 VOLTS HEATED SEAT MIRROR VOLTAGE MODULE YES DISCONNECT THE USING AN OHMMETER REPAIR THE SEAT HORIZONTAL MEASURE SEAT HORIZ IS THE RESISTANCE YES HORIZONTAL POSITION SENSOR POSITION SIGNAL CKT BELOW 1000 1K POSITION SIGNAL HARNESS CAV B TO GROUND OHMS CKT FOR A SHORT TO CONNE...

Page 470: ...TEST 13A REPAIRING HORIZONTAL SENSOR OUT OF RANGE HIGH TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 460 ...

Page 471: ... HARNESS MEMORY SEAT CONNECTOR MODULE AND SENSORS READ THE HORIZ IS THE VOLTAGE NO REPLACE THE MEMORY POSITION SENSOR ABOVE 4 8 VOLTS HEATED SEAT MIRROR VOLTAGE MODULE YES DISCONNECT THE USING A VOLTMETER REPAIR THE SEAT HORIZONTAL MEASURE SEAT HORIZ IS THE VOLTAGE YES HORIZONTAL POSITION SENSOR POSITION SIGNAL CKT ABOVE 0 2 VOLTS POSITION SIGNAL HARNESS CAV B TO GROUND CKT FOR A SHORT TO CONNECTO...

Page 472: ...TEST 14A REPAIRING RECLINER DOWN POSITION STUCK TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 462 ...

Page 473: ...R POWER SEAT SWITCH MEASURE THE RECLINER IS THE VOLTAGE NO REPLACE THE POWER 10 WAY HARNESS DOWN SWITCH SENSE ABOVE 0 5 VOLTS SEAT SWITCH CONNECTOR CKT CAV 2 TO GND FIG 1 YES USING A VOLTMETER DISCONNECT THE MEASURE THE RECLINER IS THE VOLTAGE NO REPLACE THE MEMORY MHSMM C1 HARNESS DOWN SWITCH SENSE ABOVE 0 5 VOLTS HEATED SEAT MIRROR CONNECTOR CKT CAV 2 TO GND MODULE FIG 1 YES REPAIR THE RECLINER ...

Page 474: ...TEST 15A REPAIRING RECLINER UP POSITION STUCK TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 464 ...

Page 475: ... POWER SEAT SWITCH MEASURE THE RECLINER IS THE VOLTAGE NO REPLACE THE POWER 10 WAY HARNESS UP SWITCH SENSE CKT ABOVE 0 5 VOLTS SEAT SWITCH CONNECTOR CAV 4 TO GROUND FIG 1 YES USING A VOLTMETER DISCONNECT THE MEASURE THE RECLINER IS THE VOLTAGE NO REPLACE THE MEMORY MHSMM C1 HARNESS UP SWITCH SENSE CKT ABOVE 0 5 VOLTS HEATED SEAT MIRROR CONNECTOR CAV 4 TO GROUND MODULE FIG 1 YES REPAIR THE RECLINER...

Page 476: ...TEST 16A REPAIRING RECLINER SENSOR OUT OF RANGE LOW TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 466 ...

Page 477: ...HARNESS MEMORY SEAT CONNECTOR MODULE AND SENSORS READ THE RECLINER IS THE VOLTAGE NO REPLACE THE MEMORY POSITION SENSOR BELOW 0 6 VOLTS HEATED SEAT MIRROR VOLTAGE MODULE YES DISCONNECT THE USING AN OHMMETER REPAIR THE RECLINER POSITION MEASURE THE RECLINER IS THE RESISTANCE YES RECLINER POSITION SENSOR HARNESS POSITION SIGNAL CKT BELOW 1000 1K SIGNAL CKT FOR A CONNECTOR CAV B TO GROUND OHMS SHORT ...

Page 478: ...TEST 17A REPAIRING RECLINER SENSOR OUT OF RANGE HIGH TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 468 ...

Page 479: ...C1 HARNESS MEMORY SEAT CONNECTOR MODULE AND SENSORS READ THE RECLINER IS THE VOLTAGE NO REPLACE THE MEMORY POSITION SENSOR ABOVE 4 8 VOLTS HEATED SEAT MIRROR VOLTAGE MODULE YES DISCONNECT THE USING A VOLTMETER REPAIR THE RECLINER POSITION MEASURE THE RECLINER IS THE VOLTAGE YES RECLINER POSITION SENSOR HARNESS POSITION SIGNAL CKT ABOVE 0 2 VOLTS SIGNAL CKT FOR A CONNECTOR CAV B TO GROUND SHORT TO ...

Page 480: ...TEST 18A REPAIRING MEMORY POSITION 1 STUCK TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 470 ...

Page 481: ... SWITCH SELECT BODY HARNESS MEMORY SEAT CONNECTOR MODULE INPUT OUTPUT READ THE DOES THE DRB YES REPLACE THE MEMORY MEMORY POS 1 DISPLAY OPEN SWITCH STATUS NO KEY OFF USING AN OHMMETER DISCONNECT THE MEASURE THE MEMORY IS THE RESISTANCE NO REPLACE THE MEMORY MHSMM C1 HARNESS POS 1 SW SENSE CKT BELOW 1000 1K HEATED SEAT MIRROR CONNECTOR CAV 6 TO GROUND OHMS MODULE FIG 1 YES REPAIR THE MEMORY POSITIO...

Page 482: ...TEST 19A REPAIRING MEMORY POSITION 2 STUCK TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 472 ...

Page 483: ... SWITCH SELECT BODY HARNESS MEMORY SEAT CONNECTOR MODULE INPUT OUTPUT READ THE DOES THE DRB YES REPLACE THE MEMORY MEMORY POS 2 DISPLAY OPEN SWITCH STATUS NO KEY OFF USING AN OHMMETER DISCONNECT THE MEASURE THE MEMORY IS THE RESISTANCE NO REPLACE THE MEMORY MHSMM C1 HARNESS POS 2 SW SENSE CKT BELOW 1000 1K HEATED SEAT MIRROR CONNECTOR CAV 4 TO GROUND OHMS MODULE FIG 1 YES REPAIR THE MEMORY POSITIO...

Page 484: ...TEST 20A REPAIRING MEMORY SET S POSITION STUCK TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 474 ...

Page 485: ...B MEMORY SWITCH SELECT BODY HARNESS MEMORY SEAT CONNECTOR MODULE INPUT OUTPUT READ THE DOES THE DRB YES REPLACE THE MEMORY MEMORY SET DISPLAY OPEN SWITCH STATUS NO KEY OFF USING AN OHMMETER DISCONNECT THE MEASURE THE MEMORY IS THE RESISTANCE NO REPLACE THE MEMORY MHSMM C1 HARNESS SET SW SENSE CKT BELOW 1000 1K HEATED SEAT MIRROR CONNECTOR CAV 5 TO GROUND OHMS MODULE FIG 1 YES REPAIR THE MEMORY SET...

Page 486: ...TEST 21A REPAIRING LEFT SEAT HEAT OUTPUT OPEN TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 M E M O R Y S Y S T E M 476 ...

Page 487: ...IRROR CONNECTOR DRIVER CAV 12 MODULE FIG 1 NO DISCONNECT THE LEFT USING AN OHMMETER SEAT CUSHION HEATER MEASURE THE LEFT 4 WAY HARNESS SEAT HEATER B CONNECTOR DRIVER CIRCUIT FIG 2 BETWEEN THE MHSMM C3 CONN REPAIR THE OPEN AND LEFT SEAT IS THE RESISTANCE NO LEFT SEAT HEATER CUSHION HEATER 4 WAY BELOW 5 0 OHMS B DRIVER CONN HARNESS SIDE CIRCUIT FIG 3 YES USING AN OHMMETER AND THE HEATED MEASURE BETW...

Page 488: ...TEST 21A CONTINUED REPAIRING LEFT SEAT HEAT OUTPUT OPEN TROUBLE CODE FIG 1 FIG 2 M E M O R Y S Y S T E M 478 ...

Page 489: ...TOR USING AN OHMMETER TO THE SEAT BACK MEASURE THE HEATED HEATER 2 WAY IS THE RESISTANCE NO REPAIR THE OPEN SEAT DRIVER CIRCUIT CONNECTOR BELOW 5 0 OHMS HEATED SEAT DRIVER FROM SEAT CUSHION CIRCUIT 4 WAY CONNECTOR FIG 1 YES USING AN OHMMETER AND GROUND MEASURE BETWEEN CIRCUITS CAVITIES IS THE RESISTANCE NO REPLACE THE SEAT THE HEATED SEAT A B BELOW 2 5 OHMS BACK DRIVER FIG 2 YES REPAIR THE OPEN GR...

Page 490: ...TEST 22A REPAIRING LEFT SEAT HEAT OUTPUT SHORTED TO GROUND TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 M E M O R Y S Y S T E M 480 ...

Page 491: ...TION ON DOES THE LEFT ENGINE OFF SEAT HEAT OUTPUT NO CONTINUE TEST USING THE DRB OPEN TROUBLE CODE 22A ON THE NEXT SELECT READ APPEAR PAGE DTC s YES DISCONNECT THE SEAT USING AN OHMMETER BACK HEATER 2 WAY MEASURE LEFT SEAT IS THE RESISTANCE YES REPLACE THE SEAT HARNESS CONNECTOR HEATER B DRIVER BELOW 1000 0 1K CUSHION CAV A TO GROUND OHMS FIG 2 FIG 3 NO USING AN OHMMETER REPAIR THE HEATED MEASURE ...

Page 492: ...TEST 22A CONTINUED REPAIRING LEFT SEAT HEAT OUTPUT SHORTED TO GROUND TROUBLE CODE FIG 1 M E M O R Y S Y S T E M 482 ...

Page 493: ...pair as necessary TEST 22A TURN IGNITION OFF CONTINUED FROM THE PREVIOUS USING AN PAGE OHMMETER MEASURE THE LEFT SEAT HEATER B IS THE RESISTANCE NO REPLACE THE MEMORY DRIVER CKT CAV A BELOW 1000 0 1K HEATED SEAT MIRROR TO GROUND OHMS MODULE FIG 1 YES REPAIR THE LEFT SEAT HEATER B DRIVER CKT FOR A SHORT TO GROUND M E M O R Y S Y S T E M 483 ...

Page 494: ...TEST 23A REPAIRING LEFT HEATED SEAT SWITCH STUCK IN LOW STATE TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 484 ...

Page 495: ...UBLE HARNESS CONNECTOR CODE FIG 1 TURN IGNITION OFF TURN IGNITION ON DOES THE LEFT ENGINE OFF HEATED SEAT SWITCH YES REPLACE THE SEAT USING THE DRB OPEN SHORTED TO HEATER SWITCH SELECT READ GROUND TROUBLE DTC s CODE APPEAR NO USING A VOLTMETER REPAIR THE LEFT DISCONNECT THE MEASURE LEFT SEAT IS THE VOLTAGE YES SEAT HEATER SWITCH MHSMM C1 HARNESS HEATER SW MUX CKT ABOVE 0 2 VOLTS MUX CIRCUIT FOR A ...

Page 496: ...TEST 24A REPAIRING LEFT HEATED SEAT SWITCH STUCK IN HIGH STATE TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 486 ...

Page 497: ...OUBLE HARNESS CONNECTOR CODE FIG 1 TURN IGNITION OFF TURN IGNITION ON DOES THE LEFT ENGINE OFF HEATED SEAT SWITCH YES REPLACE THE SEAT USING THE DRB OPEN SHORTED TO HEATER SWITCH SELECT READ GROUND TROUBLE DTC s CODE APPEAR NO USING A VOLTMETER REPAIR THE LEFT DISCONNECT THE MEASURE LEFT SEAT IS THE VOLTAGE YES SEAT HEATER SWITCH MHSMM C1 HARNESS HEATER SW MUX CKT ABOVE 0 2 VOLTS MUX CIRCUIT FOR A...

Page 498: ...TEST 25A REPAIRING LEFT HEATED SEAT SWITCH OPEN SHORTED TO GROUND TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 488 ...

Page 499: ...ED SEAT MIRROR CONNECTOR CAV 18 TO GROUND MODULE FIG 1 NO DISCONNECT THE LEFT USING AN OHMMETER REPAIR THE LEFT SEAT HEATER SWITCH MEASURE LEFT SEAT IS THE RESISTANCE YES SEAT HEATER SWITCH HARNESS CONNECTOR HEATER SWITCH MUX BELOW 100 0 OHMS MUX CKT FOR A CKT CAV 3 TO GND SHORT TO GROUND FIG 2 FIG 2 NO CONNECT A JUMPER USING AN OHMMETER WIRE FROM THE LEFT MEASURE LEFT SEAT IS THE RESISTANCE NO RE...

Page 500: ...TEST 26A REPAIRING LEFT THERMISTOR OUT OF RANGE LOW TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 490 ...

Page 501: ...ASURE THE CONNECTOR LEFT SEAT TEMPERTURE SENSOR IS THE RESISTANCE NO REPLACE THE MEMORY INPUT CKT CAV 4 BELOW 100 0 OHMS HEATED SEAT MIRROR TO GROUND MODULE FIG 1 YES DISCONNECT THE LEFT SEAT CUSHION USING AN OHMMETER HEATER 4 WAY MEASURE THE HARNESS CONNECTOR LEFT SEAT TEMPERTURE SENSOR IS THE RESISTANCE NO REPLACE THE LEFT INPUT CKT CAV C BELOW 1000 0 1k SEAT CUSHION TO GROUND OHMS FIG 2 YES REP...

Page 502: ...TEST 27A REPAIRING LEFT THERMISTOR OUT OF RANGE HIGH TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 492 ...

Page 503: ...FT SEAT CUSHION ENGINE OFF HEATER 4 WAY HARNESS TURN THE LEFT SEAT CONNECTOR HEATER ON USING A VOLTMETER MEASURE LEFT SEAT IS THE VOLTAGE YES CONTINUE TEST TEMPERATURE 5 VOLT ABOVE 5 5 VOLTS 27A ON THE NEXT SUPPLY CKT CAV D PAGE FIG 1 NO USING A VOLTMETER REPAIR THE LEFT MEASURE LEFT SEAT IS THE VOLTAGE YES SEAT TEMPERATURE TEMPERATURE SENSOR ABOVE 0 5 VOLTS SENSOR INPUT CKT INPUT CKT CAV C FOR A ...

Page 504: ...TEST 27A CONTINUED REPAIRING LEFT THERMISTOR OUT OF RANGE HIGH TROUBLE CODE FIG 1 M E M O R Y S Y S T E M 494 ...

Page 505: ... TEST 27A CONTINUED FROM DISCONNECT THE THE PREVIOUS MHSMM C2 HARNESS PAGE CONNECTOR USING A VOLTMETER REPAIR THE LEFT MEASURE THE LEFT IS THE VOLTAGE YES SEAT TEMPERATURE SEAT TEMPERATURE 5 ABOVE 0 3 VOLTS SENSOR 5 VOLT VOLT SUPPLY CKT SUPPLY CKT FOR A FIG 1 SHORT TO BATTERY NO REPLACE THE MEMORY HEATED SEAT MIRROR MODULE M E M O R Y S Y S T E M 495 ...

Page 506: ...TEST 28A REPAIRING RIGHT SEAT HEAT OUTPUT OPEN TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 M E M O R Y S Y S T E M 496 ...

Page 507: ...RROR CONNECTOR DRIVER CAV 6 MODULE FIG 1 NO DISCONNECT THE RIGHT USING AN OHMMETER SEAT CUSHION HEATER MEASURE THE RIGHT 4 WAY HARNESS SEAT HEATER B CONNECTOR DRIVER CIRCUIT FIG 2 BETWEEN THE MHSMM C3 CONN REPAIR THE OPEN AND RIGHT SEAT IS THE RESISTANCE NO RIGHT SEAT HEATER CUSHION HEATER 4 WAY BELOW 5 0 OHMS B DRIVER CONN HARNESS SIDE CIRCUIT FIG 3 YES USING AN OHMMETER AND THE HEATED MEASURE BE...

Page 508: ...TEST 28A CONTINUED REPAIRING RIGHT SEAT HEAT OUTPUT OPEN TROUBLE CODE FIG 1 FIG 2 M E M O R Y S Y S T E M 498 ...

Page 509: ...CTOR USING AN OHMMETER TO THE SEAT BACK MEASURE THE HEATED HEATER 2 WAY IS THE RESISTANCE NO REPAIR THE OPEN SEAT DRIVER CIRCUIT CONNECTOR BELOW 5 0 OHMS HEATED SEAT DRIVER FROM SEAT CUSHION CIRCUIT 4 WAY CONNECTOR FIG 1 YES USING AN OHMMETER AND GROUND MEASURE BETWEEN CIRCUITS CAVITIES IS THE RESISTANCE NO REPLACE THE SEAT THE HEATED SEAT A B BELOW 2 5 OHMS BACK DRIVER FIG 2 YES REPAIR THE OPEN G...

Page 510: ...TEST 29A REPAIRING RIGHT SEAT HEAT OUTPUT SHORTED TO GROUND TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 M E M O R Y S Y S T E M 500 ...

Page 511: ...TION ON DOES THE RIGHT ENGINE OFF SEAT HEAT OUTPUT NO CONTINUE TEST USING THE DRB OPEN TROUBLE CODE 29A ON THE NEXT SELECT READ APPEAR PAGE DTC s YES DISCONNECT THE SEAT USING AN OHMMETER BACK HEATER 2 WAY MEASURE RIGHT SEAT IS THE RESISTANCE YES REPLACE THE SEAT HARNESS CONNECTOR HEATER B DRIVER BELOW 1000 0 1K CUSHION CAV A TO GROUND OHMS FIG 2 FIG 3 NO USING AN OHMMETER REPAIR THE HEATED MEASUR...

Page 512: ...TEST 29A CONTINUED REPAIRING RIGHT SEAT HEAT OUTPUT SHORTED TO GROUND TROUBLE CODE FIG 1 M E M O R Y S Y S T E M 502 ...

Page 513: ...pair as necessary TEST 29A TURN IGNITION OFF CONTINUED FROM THE PREVIOUS USING AN PAGE OHMMETER MEASURE THE RIGHT SEAT HEATER B IS THE RESISTANCE NO REPLACE THE MEMORY DRIVER CKT CAV A BELOW 1000 0 1K HEATED SEAT MIRROR TO GROUND OHMS MODULE FIG 1 YES REPAIR THE LEFT SEAT HEATER B DRIVER CKT FOR A SHORT TO GROUND M E M O R Y S Y S T E M 503 ...

Page 514: ...TEST 30A REPAIRING RIGHT HEATED SEAT HEAT SWITCH STUCK IN LOW STATE TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 504 ...

Page 515: ...ROUBLE HARNESS CONNECTOR CODE FIG 1 TURN IGNITION OFF TURN IGNITION ON DOES THE RIGHT ENGINE OFF HEATED SEAT SWITCH YES REPLACE THE SEAT USING THE DRB OPEN SHORTED TO HEATER SWITCH SELECT READ GROUND TROUBLE DTC s CODE APPEAR NO USING A VOLTMETER REPAIR THE RIGHT DISCONNECT THE MEASURE RIGHT SEAT IS THE VOLTAGE YES SEAT HEATER SWITCH MHSMM C1 HARNESS HEATER SW MUX CKT ABOVE 0 2 VOLTS MUX CIRCUIT F...

Page 516: ...TEST 31A REPAIRING RIGHT HEATED SEAT HEAT SWITCH STUCK IN HIGH STATE TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 506 ...

Page 517: ...TROUBLE HARNESS CONNECTOR CODE FIG 1 TURN IGNITION OFF TURN IGNITION ON DOES THE RIGHT ENGINE OFF HEATED SEAT SWITCH YES REPLACE THE SEAT USING THE DRB OPEN SHORTED TO HEATER SWITCH SELECT READ GROUND TROUBLE DTC s CODE APPEAR NO USING A VOLTMETER REPAIR THE RIGHT DISCONNECT THE MEASURE RIGHT SEAT IS THE VOLTAGE YES SEAT HEATER SWITCH MHSMM C1 HARNESS HEATER SW MUX CKT ABOVE 0 2 VOLTS MUX CIRCUIT ...

Page 518: ...TEST 32A REPAIRING RIGHT HEATED SEAT SWITCH OPEN SHORTED TO GROUND TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 508 ...

Page 519: ...D SEAT MIRROR CONNECTOR CAV 5 TO GROUND MODULE FIG 1 NO DISCONNECT THE RIGHT USING AN OHMMETER REPAIR THE RIGHT SEAT HEATER SWITCH MEASURE RIGHT SEAT IS THE RESISTANCE YES SEAT HEATER SWITCH HARNESS CONNECTOR HEATER SWITCH MUX BELOW 100 0 OHMS MUX CKT FOR A CKT CAV 6 TO GND SHORT TO GROUND FIG 2 FIG 2 NO CONNECT A JUMPER USING AN OHMMETER WIRE FROM THE RIGHT MEASURE RIGHT SEAT IS THE RESISTANCE NO...

Page 520: ...TEST 33A REPAIRING RIGHT THERMISTOR OUT OF RANGE LOW TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 510 ...

Page 521: ...URE THE CONNECTOR RIGHT SEAT TEMPERTURE SENSOR IS THE RESISTANCE NO REPLACE THE MEMORY INPUT CKT CAV 17 BELOW 100 0 OHMS HEATED SEAT MIRROR TO GROUND MODULE FIG 1 YES DISCONNECT THE RIGHT SEAT CUSHION USING AN OHMMETER HEATER 4 WAY MEASURE THE HARNESS CONNECTOR RIGHT SEAT TEMPERTURE SENSOR IS THE RESISTANCE NO RELACE THE RIGHT INPUT CKT CAV C BELOW 1000 0 1k SEAT CUSHION TO GROUND OHMS FIG 2 YES R...

Page 522: ...TEST 34A REPAIRING RIGHT THERMISTOR OUT OF RANGE HIGH TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 512 ...

Page 523: ...T SEAT CUSHION ENGINE OFF HEATER 4 WAY HARNESS TURN THE RIGHT CONNECTOR SEAT HEATER ON USING A VOLTMETER MEASURE RIGHT SEAT IS THE VOLTAGE YES CONTINUE TEST TEMPERATURE 5 VOLT ABOVE 5 5 VOLTS 34A ON THE NEXT SUPPLY CKT CAV D PAGE FIG 1 NO USING A VOLTMETER REPAIR THE RIGHT MEASURE RIGHT SEAT IS THE VOLTAGE YES SEAT TEMPERATURE TEMPERATURE SENSOR ABOVE 0 5 VOLTS SENSOR INPUT CKT INPUT CKT CAV C FOR...

Page 524: ...TEST 34A CONTINUED REPAIRING RIGHT THERMISTOR OUT OF RANGE HIGH TROUBLE CODE FIG 1 M E M O R Y S Y S T E M 514 ...

Page 525: ... TEST 34A CONTINUED FROM DISCONNECT THE THE PREVIOUS MHSMM C2 HARNESS PAGE CONNECTOR USING A VOLTMETER REPAIR THE RIGHT MEASURE THE RIGHT IS THE VOLTAGE YES SEAT TEMPERATURE SEAT TEMPERATURE 5 ABOVE 0 3 VOLTS SENSOR 5 VOLT VOLT SUPPLY CKT SUPPLY CKT FOR A FIG 1 SHORT TO BATTERY NO REPLACE THE MEMORY HEATED SEAT MIRROR MODULE M E M O R Y S Y S T E M 515 ...

Page 526: ...TEST 35A REPAIRING LEFT MIRROR HORIZONTAL SENSOR OUT OF RANGE LOW TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 516 ...

Page 527: ... THE MEASURE THE LEFT IS THE RESISTANCE NO REPLACE THE MEMORY MHSMM C1 HARNESS MIRROR HORIZ POS BELOW 0 7 OHMS HEATED SEAT MIRROR CONNECTOR SIGNAL CKT CAV 20 MODULE MHSMM FIG 1 YES DISCONNECT THE LEFT USING AN OHMMETER REPAIR THE LEFT MEMORY MIRROR MEASURE THE LEFT IS THE RESISTANCE YES MIRROR HORIZONTAL HARNESS CONNECTOR MIRROR HORIZ POS BELOW 1000 0 OHMS POSITION SIGNAL SIGNAL CKT CAV 9 CKT FOR ...

Page 528: ...TEST 36A REPAIRING LEFT MIRROR HORIZONTAL SENSOR OUT OF RANGE HIGH TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 518 ...

Page 529: ...C1 HARNESS MEASURE THE LEFT IS THE VOLTAGE NO REPLACE THE MEMORY CONNECTOR MIRROR HORIZ POS ABOVE 4 5 VOLTS HEATED SEAT MIRROR TURN IGNITION ON SIGNAL CKT CAV 20 MODULE MHSMM ENGINE OFF FIG 1 YES DISCONNECT THE LEFT USING A VOLTMETER REPAIR THE LEFT MEMORY MIRROR MEASURE THE LEFT IS THE VOLTAGE YES MIRROR HORIZONTAL HARNESS CONNECTOR MIRROR HORIZ POS ABOVE 0 2 VOLTS POSITION SIGNAL SIGNAL CKT CAV ...

Page 530: ...TEST 37A REPAIRING LEFT MIRROR VERTICAL SENSOR OUT OF RANGE LOW TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 520 ...

Page 531: ...E MEASURE THE LEFT IS THE RESISTANCE NO REPLACE THE MEMORY MHSMM C1 HARNESS MIRROR VERTICAL POS BELOW 0 7 OHMS HEATED SEAT MIRROR CONNECTOR SIGNAL CKT CAV 7 MODULE MHSMM FIG 1 YES DISCONNECT THE LEFT USING AN OHMMETER REPAIR THE LEFT MEMORY MIRROR MEASURE THE LEFT IS THE RESISTANCE YES MIRROR VERTICAL HARNESS CONNECTOR MIRROR VERTICAL POS BELOW 1000 0 OHMS POSITION SIGNAL SIGNAL CKT CAV 7 CKT FOR ...

Page 532: ...TEST 38A REPAIRING LEFT MIRROR VERTICAL SENSOR OUT OF RANGE HIGH TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 522 ...

Page 533: ... HARNESS MEASURE THE LEFT IS THE VOLTAGE NO REPLACE THE MEMORY CONNECTOR MIRROR VERTICAL POS ABOVE 4 5 VOLTS HEATED SEAT MIRROR TURN IGNITION ON SIGNAL CKT CAV 7 MODULE MHSMM ENGINE OFF FIG 1 YES DISCONNECT THE LEFT USING A VOLTMETER REPAIR THE LEFT MEMORY MIRROR MEASURE THE LEFT IS THE VOLTAGE YES MIRROR VERTICAL HARNESS CONNECTOR MIRROR VERTICAL POS ABOVE 0 2 VOLTS POSITION SIGNAL SIGNAL CKT CAV...

Page 534: ...TEST 39A REPAIRING RIGHT MIRROR HORIZONTAL SENSOR OUT OF RANGE LOW TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 524 ...

Page 535: ...HE MEASURE THE RIGHT IS THE RESISTANCE NO REPLACE THE MEMORY MHSMM C1 HARNESS MIRROR HORIZ POS BELOW 0 7 OHMS HEATED SEAT MIRROR CONNECTOR SIGNAL CKT CAV 19 MODULE MHSMM FIG 1 YES DISCONNECT THE RIGHT USING AN OHMMETER REPAIR THE RIGHT MEMORY MIRROR MEASURE THE RIGHT IS THE RESISTANCE YES MIRROR HORIZONTAL HARNESS CONNECTOR MIRROR HORIZ POS BELOW 1000 0 OHMS POSITION SIGNAL SIGNAL CKT CAV 9 CKT FO...

Page 536: ...TEST 40A REPAIRING RIGHT MIRROR HORIZONTAL SENSOR OUT OF RANGE HIGH TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 526 ...

Page 537: ... HARNESS MEASURE THE RIGHT IS THE VOLTAGE NO REPLACE THE MEMORY CONNECTOR MIRROR HORIZ POS ABOVE 4 5 VOLTS HEATED SEAT MIRROR TURN IGNITION ON SIGNAL CKT CAV 19 MODULE MHSMM ENGINE OFF FIG 1 YES DISCONNECT THE RIGHT USING A VOLTMETER REPAIR THE RIGHT MEMORY MIRROR MEASURE THE RIGHT IS THE VOLTAGE YES MIRROR HORIZONTAL HARNESS CONNECTOR MIRROR HORIZ POS ABOVE 0 2 VOLTS POSITION SIGNAL SIGNAL CKT CA...

Page 538: ...TEST 41A REPAIRING RIGHT MIRROR VERTICAL SENSOR OUT OF RANGE LOW TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 528 ...

Page 539: ...MEASURE THE RIGHT IS THE RESISTANCE NO REPLACE THE MEMORY MHSMM C1 HARNESS MIRROR VERTICAL POS BELOW 0 7 OHMS HEATED SEAT MIRROR CONNECTOR SIGNAL CKT CAV 6 MODULE MHSMM FIG 1 YES DISCONNECT THE RIGHT USING AN OHMMETER REPAIR THE RIGHT MEMORY MIRROR MEASURE THE RIGHT IS THE RESISTANCE YES MIRROR VERTICAL HARNESS CONNECTOR MIRROR VERTICAL POS BELOW 1000 0 OHMS POSITION SIGNAL SIGNAL CKT CAV 7 CKT FO...

Page 540: ...TEST 42A REPAIRING RIGHT MIRROR VERTICAL SENSOR OUT OF RANGE HIGH TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 530 ...

Page 541: ...ARNESS MEASURE THE RIGHT IS THE VOLTAGE NO REPLACE THE MEMORY CONNECTOR MIRROR VERTICAL POS ABOVE 4 5 VOLTS HEATED SEAT MIRROR TURN IGNITION ON SIGNAL CKT CAV 6 MODULE MHSMM ENGINE OFF FIG 1 YES DISCONNECT THE RIGHT USING A VOLTMETER REPAIR THE RIGHT MEMORY MIRROR MEASURE THE RIGHT IS THE VOLTAGE YES MIRROR VERTICAL HARNESS CONNECTOR MIRROR VERTICAL POS ABOVE 0 2 VOLTS POSITION SIGNAL SIGNAL CKT C...

Page 542: ...TEST 43A REPAIRING INOPERATIVE MEMORY SWITCH Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 532 ...

Page 543: ...T CAVITY 3 BELOW 5 0 OHMS GROUND CIRCUIT CONNECTOR TO GROUND FIG 1 YES USING A VOLTMETER MEASURE THE MEMORY IS THE VOLTAGE NO CONTINUE TEST SET SWITCH SENSE CKT ABOVE 0 5 VOLTS 43A ON THE NEXT CAV 5 TO GROUND PAGE FIG 1 YES USING A VOLTMETER MEASURE THE MEMORY IS THE VOLTAGE NO PERFORM TEST POS 1 SWITCH SENSE ABOVE 0 5 VOLTS 43B CKT CAV 6 TO GND FIG 1 YES USING A VOLTMETER MEASURE THE MEMORY IS TH...

Page 544: ...TEST 43A CONTINUED REPAIRING INOPERATIVE MEMORY SWITCH FIG 1 FIG 2 M E M O R Y S Y S T E M 534 ...

Page 545: ...TING CONNECT A A KNOWN GOOD PAGE JUMPER WIRE GROUND FROM CONNECT A JUMPER DISCONNECT THE WIRE FROM MEMORY SET MHSMM C1 HARNESS SWITCH SENSE CKT CONNECTOR CAV 5 TO GROUND FIG 1 USING AN OHMMETER MEASURE THE MEMORY IS THE RESISTANCE NO REPAIR THE OPEN SET SWITCH SENSE CKT BELOW 5 0 OHMS MEMORY SET SWITCH CAV 13 TO GROUND SENSE CIRCUIT FIG 2 YES REPLACE THE MEMORY HEATED SEAT MIRROR MODULE MHSMM M E ...

Page 546: ...TEST 43B REPAIRING INOPERATIVE MEMORY SWITCH Perform TEST 43A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 536 ...

Page 547: ...CONNECT A A KNOWN GOOD JUMPER WIRE GROUND FROM CONNECT A JUMPER DISCONNECT THE WIRE FROM MEMORY POS MHSMM C1 HARNESS 1 SWITCH SENSE CKT CONNECTOR CAV 6 TO GROUND FIG 1 USING AN OHMMETER CAVITY 12 TO REPAIR THE OPEN MEASURE THE MEMORY GROUND IS THE RESISTANCE NO MEMORY POSITION 1 POSITION 1 SWITCH BELOW 5 0 OHMS SWITCH SENSE SENSE CKT CIRCUIT FIG 2 YES REPLACE THE MEMORY HEATED SEAT MIRROR MODULE M...

Page 548: ...TEST 43C REPAIRING INOPERATIVE MEMORY SWITCH Perform TEST 43A Before Proceeding FIG 1 FIG 2 M E M O R Y S Y S T E M 538 ...

Page 549: ...CONNECT A A KNOWN GOOD JUMPER WIRE GROUND FROM CONNECT A JUMPER DISCONNECT THE WIRE FROM MEMORY POS MHSMM C1 HARNESS 2 SWITCH SENSE CKT CONNECTOR CAV 4 TO GROUND FIG 1 USING AN OHMMETER CAVITY 25 TO REPAIR THE OPEN MEASURE THE MEMORY GROUND IS THE RESISTANCE NO MEMORY POSITION 2 POSITION 2 SWITCH BELOW 5 0 OHMS SWITCH SENSE SENSE CKT CIRCUIT FIG 2 YES REPLACE THE MEMORY HEATED SEAT MIRROR MODULE M...

Page 550: ...TEST 44A REPAIRING LEFT MIRROR INOPERATIVE FROM MEMORY Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 540 ...

Page 551: ... OPEN THE LEFT POSITION VOLTS WHEN THE LEFT MIRROR LEFT AND OBSERVE THE SWITCH WAS DRIVER CIRCUIT VOLTMETER PRESSED YES USING A VOLTMETER PRESS THE LEFT DID THE VOLTAGE MEASURE THE LEFT MIRROR SWITCH TO READ ABOVE 10 0 NO REPAIR THE OPEN MIRROR UP DRIVER THE UP POSITION VOLTS WHEN THE LEFT MIRROR UP CKT CAVITY 5 AND OBSERVE THE SWITCH WAS DRIVER CIRCUIT FIG 1 VOLTMETER PRESSED YES USING A VOLTMETE...

Page 552: ...TEST 45A REPAIRING RIGHT MIRROR INOPERATIVE FROM MEMORY Perform TEST 1A Before Proceeding FIG 1 M E M O R Y S Y S T E M 542 ...

Page 553: ...PEN THE LEFT POSITION VOLTS WHEN THE RIGHT MIRROR LEFT AND OBSERVE THE SWITCH WAS DRIVER CIRCUIT VOLTMETER PRESSED YES USING A VOLTMETER PRESS THE RIGHT DID THE VOLTAGE MEASURE THE RIGHT MIRROR SWITCH TO READ ABOVE 10 0 NO REPAIR THE OPEN MIRROR UP DRIVER THE UP POSITION VOLTS WHEN THE RIGHT MIRROR UP CKT CAVITY 13 AND OBSERVE THE SWITCH WAS DRIVER CIRCUIT FIG 1 VOLTMETER PRESSED YES USING A VOLTM...

Page 554: ...TEST 1A IDENTIFYING OVERHEAD TRAVEL INFORMATION SYSTEM PROBLEM Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding O V E R H E A D T R A V E L I N F O R M A T I O N S Y S T E M 544 ...

Page 555: ...nd observe the OTIS screen A If any of the segments fail to light up replace the OTIS Module B If the OTIS screen show FAIL replace the OTIS Module C If the OTIS screen does not show any communication numbered values replace the BCM PROBLEM WITH PERFORM OTIS Outside Temperature Shows SC or shows OC TEST 2A Ambient Temperature Sensor Failure TEST 2A Incorrect Ambient Temperature Reading TEST 3A OTI...

Page 556: ...TEST 2A REPAIRING AMBIENT TEMPERATURE SENSOR FAILURE Perform TEST 1A Before Proceeding FIG 1 O V E R H E A D T R A V E L I N F O R M A T I O N S Y S T E M 546 ...

Page 557: ...DRB READ REPLACE THE AMBIENT THE AMBIENT IS THE VOLTAGE YES AMBIENT TEMPERATURE SENSOR TEMPERATURE SENSOR APPROXIMATELY 5 0 TEMPERATURE HARNESS VOLTAGE VOLTS SENSOR CONNECTOR NO KEY OFF USING AN OHMMETER REPAIR THE AMBIENT DISCONNECT THE MEASURE BETWEEN IS THE RESISTANCE YES TEMPERATURE SENSOR BODY CONTROL GROUND AND THE BELOW 5 0 OHMS SIGNAL CIRCUIT FOR MODULE C3 HARNESS AMBIENT TEMP SENSOR A SHO...

Page 558: ...TEST 2A CONTINUED REPAIRING AMBIENT TEMPERATURE SENSOR FAILURE FIG 1 FIG 2 O V E R H E A D T R A V E L I N F O R M A T I O N S Y S T E M 548 ...

Page 559: ...BIENT AMBIENT TEMP SENSOR BELOW 0 2 VOLTS TEMPERATURE HARNESS CONN CAVS SENSOR 1 2 FIG 1 NO REMOVE THE JUMPER AMBIENT WIRE TEMPERATURE SENSOR CONNECT A JUMPER SIGNAL CIRCUIT WIRE BETWEEN GROUND AND THE FIG 1 IS THE VOLTAGE YES REPAIR THE OPEN BELOW 0 2 VOLTS SENSOR GROUND CIRCUIT NO LEAVE THE JUMPER DISCONNECT THE WIRE CONNECTED BODY CONTROL FROM THE PREVIOUS MODULE C3 HARNESS STEP CONNECTOR WITH ...

Page 560: ...TEST 3A REPAIRING INCORRECT AMBIENT TEMPERATURE READING Perform TEST 1A Before Proceeding TYPICAL FIG 1 FIG 2 FIG 3 O V E R H E A D T R A V E L I N F O R M A T I O N S Y S T E M 550 ...

Page 561: ...E AMBIENT TEMPERATURE SENSOR USING AN OHMMETER REPLACE THE MEASURE THE COMPARE READING DOES THE READING NO AMBIENT RESISTANCE OF THE WITH THE CHART IN COMPARE WITH THE TEMPERATURE AMBIENT TEMPERATURE FIGURE 2 CHART SENSOR SENSOR FIG 1 YES KEY OFF CLOSE ALL USING AN OHMMETER DOORS INSURE ALL MEASURE BETWEEN IS THE RESISTANCE YES PERFORM TEST LIGHTS ARE OFF GROUND AND THE BELOW 30 0 OHMS 3B WAIT 1 M...

Page 562: ...TEST 3A CONTINUED REPAIRING INCORRECT AMBIENT TEMPERATURE READING FIG 1 O V E R H E A D T R A V E L I N F O R M A T I O N S Y S T E M 552 ...

Page 563: ...ND CONTINUED FROM INSPECT THE BODY THE PREVIOUS CONTROL MODULE C3 PAGE HARNESS CONNECTOR USING AN OHMMETER REPAIR OPEN OR MEASURE BETWEEN IS THE RESISTANCE NO HIGH RESISTANCE IN GROUND AND THE BELOW 5 0 OHMS THE SENSOR GROUND SENSOR GROUND CIRCUIT CIRCUIT FIG 1 YES REPLACE THE BODY CONTROL MODULE O V E R H E A D T R A V E L I N F O R M A T I O N S Y S T E M 553 ...

Page 564: ...TEST 3B REPAIRING INCORRECT AMBIENT TEMPERATURE READING Perform TEST 3A Before Proceeding FIG 1 O V E R H E A D T R A V E L I N F O R M A T I O N S Y S T E M 554 ...

Page 565: ...TIAL SHORT TO CAV 10 500 000 OHMS GROUND NO MEASURE BETWEEN REPAIR THE AMBIENT USE AN OHMMETER IN GROUND AND THE IS THE RESISTANCE YES TEMPERATURE SENSOR THE FOLLOWING AMBIENT TEMPERATURE BELOW 50K 50 000 SIGNAL CKT FOR A STEPS SENSOR SIGNAL OHMS PARTIAL SHORT TO CIRCUIT FIG 1 GROUND NO MEASURE BETWEEN THE REPAIR THE AMBIENT AMBIENT TEMP SENSOR IS THE RESISTANCE YES TEMP SENSOR SIGNAL SIGNAL CIRCU...

Page 566: ...TEST 4A REPAIRING OTIS MILEAGE AND DISTANCE FUNCTIONS Perform TEST 1A Before Proceeding NOTES O V E R H E A D T R A V E L I N F O R M A T I O N S Y S T E M 556 ...

Page 567: ...EST 4A PROPERLY ELASPED INFORMATION SYSTEM TIME ETC OTIS MODULE SEE GENERAL INFO 4 0 YES REFER TO THE USING THE DRB ARE ANY ENGINE YES APPROPRIATE ENTER ENGINE AND TROUBLE CODES POWERTRAIN READ THE DTC S PRESENT DIAGNOSTIC MANUAL NO OTHER POSSIBLE PROBLEM AREAS TO VERIFY TO BE CORRECT INJECTOR PULSE DIAGNOSE THESE PINION FACTOR ACCORDING TO FUEL FILL THEIR APPROPRIATE PROCEDURE AND MANUALS CORRECT...

Page 568: ...TEST 5A REPAIRING OTIS SWITCHES Perform TEST 1A Before Proceeding NOTES O V E R H E A D T R A V E L I N F O R M A T I O N S Y S T E M 558 ...

Page 569: ... THE CHIME NO PERFORM FRONT DOOR SOUND CHIME SYSTEM TEST 1A YES PRESS EACH BUTTON ON WAS A BEEP HEARD REPLACE THE TURN IGNITION ON THE OTIS AND AT THE BODY NO OVERHEAD TRAVEL CLOSE THE DRIVER S LISTEN FOR AN CONTROL MODULE INFORMATION SYSTEM FRONT DOOR AUDIBLE BEEP AT THE EACH TIME A BUTTON OTIS MODULE BODY CONTROL MODULE WAS PRESSED YES SWITCHES ARE WORKING PROPERLY RETURN TO OTIS MENU FOR SPECIF...

Page 570: ...TEST 1A IDENTIFYING POWER DOOR LOCK PROBLEMS Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding P O W E R D O O R L O C K S Y S T E M 560 ...

Page 571: ... Program Mode Entered W O Program Request TEST 16A Decklid Release Switch Failure TEST 17A Decklid Release Solenoid Output Failure TEST 18A PROBLEM WITH PERFORM All doors failing to lock and unlock from any switch TEST 2A One door failing to lock and unlock from any switch TEST 3A All doors failing to lock and unlock from one switch TEST 4A All doors failing to lock from any switch TEST 5A Left fr...

Page 572: ...TEST 2A REPAIRING ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY SWITCH Perform TEST 1A Before Proceeding FIG 1 P O W E R D O O R L O C K S Y S T E M 562 ...

Page 573: ...CH VOLTAGE NO IS THE VOLTAGE WITH THE DRB READ PRESS THE DOOR ABOVE 1 7 VOLTS YES REPLACE THE BODY THE DOOR LOCK LOCK SWITCH TO THE WITH THE SWITCH CONTROL MODULE SWITCH VOLTAGE LOCK POSITION PRESSED NO DISCONNECT THE RIGHT REMOVE THE RIGHT DOOR LOCK SWITCH FRONT DOOR TRIM HARNESS CONNECTOR PANEL FIG 1 WITH A VOLTMETER MEASURE THE FUSED IS THE VOLTAGE NO REPAIR THE OPEN B CIRCUIT ABOVE 10 0 VOLTS ...

Page 574: ...TEST 2A CONTINUED REPAIRING ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY SWITCH FIG 1 FIG 2 P O W E R D O O R L O C K S Y S T E M 564 ...

Page 575: ... LF BELOW 5 0 OHMS DOOR LOCK SWITCH CONNECTOR DOOR SWITCH MUX FIG 1 CKT FIG 1 YES DISCONNECT THE WITH AN OHMMETER REPAIR THE LF DOOR BODY CONTROL MEASURE BETWEEN IS THE RESISTANCE YES SWITCH MUX CIRCUIT MODULE C4 HARNESS GROUND AND THE LF BELOW 5 0 OHMS FOR A SHORT TO CONNECTOR DOOR SWITCH MUX GROUND CKT FIG 2 NO WITH AN OHMMETER REPAIR THE RF DOOR MEASURE BETWEEN IS THE RESISTANCE YES SWITCH MUX ...

Page 576: ...TEST 2B REPAIRING ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY SWITCH Perform TEST 2A Before Proceeding FIG 1 FIG 2 FIG 3 P O W E R D O O R L O C K S Y S T E M 566 ...

Page 577: ... RESISTANCE ACROSS BELOW 5 0 OHMS CIRCUIT BREAKER THE CIRCUIT BREAKER TERMINALS FIG 2 YES INSTALL THE WITH A VOLTMETER CIRCUIT BREAKER MEASURE THE FUSED IS THE VOLTAGE NO REPLACE THE REMOVE THE DOOR B CIRCUIT ABOVE 10 0 VOLTS JUNCTION BLOCK LOCK RELAY CAVITY 82 FIG 3 FIG 3 YES WITH A VOLTMETER REPAIR THE OPEN MEASURE THE FUSED IS THE VOLTAGE NO FUSED B B CIRCUIT ABOVE 10 0 VOLTS CIRCUIT IF OK CAVI...

Page 578: ...TEST 2B CONTINUED REPAIRING ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY SWITCH FIG 1 FIG 2 P O W E R D O O R L O C K S Y S T E M 568 ...

Page 579: ...LIGHT BETWEEN CAVITIES 83 AND 85 OF THE DOOR LOCK FIG 1 RELAY CONN FIG 1 DOES THE TEST WITH THE DRB LIGHT FLASH ON AND YES REPLACE THE ACTUATE THE DOOR OFF AS THE RELAY JUNCTION BLOCK LOCK RELAY IS ACTUATED NO CONNECT A JUMPER REMOVE THE BCM WIRE BETWEEN GROUND FROM THE JUNCTION AND THE DOOR LOCK BLOCK RELAY CONNECTOR CAVITY 85 FIG 1 WITH AN OHMMETER 20 WAY INTERNAL MEASURE BETWEEN CONNECTOR IS TH...

Page 580: ...TEST 2C REPAIRING ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY SWITCH Perform TEST 2A Before Proceeding FIG 1 FIG 2 FIG 3 P O W E R D O O R L O C K S Y S T E M 570 ...

Page 581: ...IGHT DOOR LOCK FRONT DOOR TRIM SWITCH HARNESS PANEL CONNECTOR FIG 2 WITH THE DRB READ IS THE VOLTAGE NO REPLACE THE RIGHT THE DOOR LOCK ABOVE 0 2 VOLTS FRONT DOOR LOCK SWITCH VOLTAGE SWITCH YES KEY OFF KEY ON REPAIR THE LF DOOR DISCONNECT THE USING A VOLTMETER IS THE VOLTAGE YES SWITCH MUX CIRCUIT BODY CONTROL MEASURE THE LF DOOR ABOVE 0 2 VOLTS FOR A SHORT TO MODULE C4 HARNESS SWITCH MUX CKT VOLT...

Page 582: ...TEST 3A REPAIRING ONE DOOR FAILING TO LOCK AND UNLOCK FROM ANY SWITCH Perform TEST 1A Before Proceeding FIG 1 P O W E R D O O R L O C K S Y S T E M 572 ...

Page 583: ...S BETWEEN GROUND AND CONNECTOR THE LOCK RELAY OUTPUT CIRCUIT FIG 1 FIG 1 DOES THE TEST REPAIR THE OPEN PRESS THE DOOR LIGHT TURN ON WITH NO LOCK RELAY OUTPUT LOCK SWITCH TO THE THE DOOR LOCK CIRCUIT IF OK LOCK POSITION SWITCH DEPRESSED REPLACE THE JUNCTION BLOCK YES CONNECT A TEST LIGHT DOES THE TEST REPAIR THE OPEN BETWEEN GROUND AND PRESS THE DOOR LIGHT TURN ON WITH NO UNLOCK RELAY THE UNLOCK RE...

Page 584: ...TEST 3A CONTINUED REPAIRING ONE DOOR FAILING TO LOCK AND UNLOCK FROM ANY SWITCH FIG 1 P O W E R D O O R L O C K S Y S T E M 574 ...

Page 585: ...CK CONN CAVITY 88 FIG 1 YES WITH AN OHMMETER MEASURE BETWEEN IS THE RESISTANCE NO REPLACE THE GROUND AND THE LF BELOW 5 0 OHMS JUNCTION BLOCK DOOR UNLOCK RELAY CONN CAV 89 FIG 1 YES SUBSITUTE THE LF DOOR UNLOCK RELAY OPERATE THE DOOR DOES THE LF DOOR YES REPLACE THE WITH A KNOWN GOOD LOCKS LOCK OPERATE ORIGINAL LF DOOR RELAY PROPERLY UNLOCK RELAY FIG 1 NO REMOVE THE LF DOOR CONNECT A TEST LIGHT UN...

Page 586: ...TEST 3A CONTINUED REPAIRING ONE DOOR FAILING TO LOCK AND UNLOCK FROM ANY SWITCH FIG 1 FIG 2 P O W E R D O O R L O C K S Y S T E M 576 ...

Page 587: ...WEEN PRESS THE DOOR LIGHT TURN ON WITH NO LOCK RELAY OUTPUT GROUND AND THE LOCK SWITCH TO THE THE DOOR LOCK CIRCUIT IF OK LOCK RELAY OUTPUT LOCK POSITION SWITCH DEPRESSED REPLACE THE CIRCUIT FIG 2 JUNCTION BLOCK YES CONNECT A TEST LIGHT DOES THE TEST REPAIR THE OPEN LF BETWEEN GROUND AND PRESS THE DOOR LIGHT TURN ON WITH NO DOOR UNLOCK RELAY THE LF DOOR UNLOCK LOCK SWITCH TO THE THE DOOR UNLOCK OU...

Page 588: ...TEST 3B REPAIRING ONE DOOR FAILING TO LOCK AND UNLOCK FROM ANY SWITCH Perform TEST 3A Before Proceeding FIG 1 FIG 2 P O W E R D O O R L O C K S Y S T E M 578 ...

Page 589: ...HE BODY CONTROL MODULE START TEST 3B FROM THE JUNCTION BLOCK CONNECT A JUMPER WITH AN OHMMETER WIRE BETWEEN GROUND MEASURE BETWEEN AND THE LF DOOR GROUND AND THE UNLOCK RELAY CONN JUNCTION BLOCK CAV 90 FIG 1 20 WAY INTERNAL CONNECTOR IS THE RESISTANCE NO REPLACE THE CAVITY 13 BELOW 5 0 OHMS JUNCTION BLOCK FIG 2 YES REPLACE THE BODY CONTROL MODULE P O W E R D O O R L O C K S Y S T E M 579 ...

Page 590: ...TEST 4A REPAIRING ALL DOORS FAILING TO LOCK AND UNLOCK FROM ONE SWITCH Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 P O W E R D O O R L O C K S Y S T E M 580 ...

Page 591: ...EN B CIRCUIT ABOVE 10 0 VOLTS FUSED B CIRCUIT FIGS 1 OR 2 YES CONNECT A JUMPER WITH THE DRB ENTER WIRE BETWEEN THE BODY COMPUTER IS THE VOLTAGE YES REPLACE THE DOOR FUSED B AND THE THEN SENSORS AND ABOVE 9 0 VOLTS LOCK SWITCH DOOR SWITCH MUX READ THE DOOR LOCK CKTS FIGS 1 OR 2 SWITCH VOLTAGE NO DISCONNECT THE BODY USING A VOLTMETER CONTROL MODULE C4 MEASURE THE HARNESS CONNECTOR APPROPRIATE DOOR S...

Page 592: ...TEST 4A CONTINUED REPAIRING ALL DOORS FAILING TO LOCK AND UNLOCK FROM ONE SWITCH FIG 1 FIG 2 FIG 3 P O W E R D O O R L O C K S Y S T E M 582 ...

Page 593: ...ND THE VTSS BELOW 5 0 OHMS CIRCUIT FOR A SHORT ARM DISARM SENSE TO GROUND IF OK CKT FIGS 1 OR 2 REPLACE THE BCM NO CONNECT A JUMPER WITH THE DRB ENTER WIRE BETWEEN THE BODY COMPUTER THEN IS THE VOLTAGE YES REPLACE THE DOOR FUSED B AND VTSS SENSORS AND READ ABOVE 10 0 VOLTS KEY CYLINDER ARM DISARM SENSE THE APPROPRIATE DOOR SWITCH CKTS FIGS 1 OR 2 ARM DISARM SW VOLTS NO DISCONNECT THE BODY USING A ...

Page 594: ...TEST 5A REPAIRING ALL DOORS FAILING TO LOCK FROM ANY SWITCH Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 FIG 4 P O W E R D O O R L O C K S Y S T E M 584 ...

Page 595: ...LAY OUTPUT THE LF DOOR UNLOCK GROUND AND THE LOCK BELOW 20 0 OHMS CKTS FOR A SHORT TO RELAY RELAY OUTPUT CIRCUIT GROUND IF OK FIGS 2 3 CAVITY 81 FIG 1 REPLACE THE J B NO CONNECT A TEST LIGHT WITH THE DRB DOES THE TEST BETWEEN CAVITIES 83 ACTUATE THE DOOR LIGHT FLASH ON AND NO CONTINUED TEST 85 OF THE DOOR LOCK RELAY AND OFF WHEN THE RELAY 5A ON THE NEXT LOCK RELAY CONN OBSERVE THE TEST IS ACTUATED...

Page 596: ...TEST 5A CONTINUED REPAIRING ALL DOORS FAILING TO LOCK FROM ANY SWITCH FIG 1 FIG 2 P O W E R D O O R L O C K S Y S T E M 586 ...

Page 597: ... CONTROL MODULE THE PREVIOUS FROM THE JUNCTION PAGE BLOCK CONNECT A JUMPER WITH AN OHMMETER WIRE BETWEEN GROUND MEASURE BETWEEN AND THE DOOR LOCK GROUND AND THE RELAY CONN JUNCTION BLOCK CAVITY 85 FIG 1 20 WAY INTERNAL CONNECTOR IS THE RESISTANCE NO REPLACE THE CAVITY 15 BELOW 5 0 OHMS JUNCTION BLOCK FIG 2 YES REPLACE THE BODY CONTROL MODULE P O W E R D O O R L O C K S Y S T E M 587 ...

Page 598: ...TEST 6A REPAIRING LEFT FRONT DOOR FAILING TO LOCK FROM ANY SWITCH Perform TEST 1A Before Proceeding FIG 1 P O W E R D O O R L O C K S Y S T E M 588 ...

Page 599: ...R 2A Check connectors Clean repair as necessary REMOVE THE LF DOOR UNLOCK RELAY START TEST 6A FIG 1 USING AN OHMMETER MEASURE BETWEEN IS THE RESISTANCE NO REPLACE THE GROUND AND THE LF BELOW 5 0 OHMS JUNCTION BLOCK DOOR UNLOCK RELAY CONN CAV 89 FIG 1 YES REPLACE THE LF DOOR UNLOCK RELAY P O W E R D O O R L O C K S Y S T E M 589 ...

Page 600: ...TEST 7A REPAIRING ALL DOORS FAILING TO UNLOCK FROM ANY SWITCH Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 FIG 4 P O W E R D O O R L O C K S Y S T E M 590 ...

Page 601: ...FOR A SHORT RELAY UNLOCK RELAY OUTPUT TO GROUND IF OK FIGS 2 3 CKT CAV 76 FIG 1 REPLACE THE J B NO CONNECT A TEST LIGHT WITH THE DRB DOES THE TEST BETWEEN CAVITIES 78 ACTUATE THE DOOR LIGHT FLASH ON AND NO CONTINUE TEST 80 OF THE DOOR UNLOCK RELAY AND OFF WHEN THE RELAY 7A ON THE NEXT UNLOCK RELAY CONN OBSERVE THE TEST IS ACTUATED PAGE FIG 1 LIGHT YES USING AN OHMMETER STOP THE MEASURE BETWEEN IS ...

Page 602: ...TEST 7A CONTINUED REPAIRING ALL DOORS FAILING TO UNLOCK FROM ANY SWITCH FIG 1 FIG 2 P O W E R D O O R L O C K S Y S T E M 592 ...

Page 603: ... CONTROL MODULE THE PREVIOUS FROM THE JUNCTION PAGE BLOCK CONNECT A JUMPER WITH AN OHMMETER WIRE BETWEEN GROUND MEASURE BETWEEN AND THE DOOR UNLOCK GROUND AND THE RELAY CONN JUNCTION BLOCK CAVITY 80 FIG 1 20 WAY INTERNAL CONNECTOR IS THE RESISTANCE NO REPLACE THE CAVITY 19 BELOW 5 0 OHMS JUNCTION BLOCK FIG 2 YES REPLACE THE BODY CONTROL MODULE P O W E R D O O R L O C K S Y S T E M 593 ...

Page 604: ...TEST 8A REPAIRING LEFT FRONT DOOR FAILING TO UNLOCK FROM ANY SWITCH Perform TEST 1A Before Proceeding FIG 1 FIG 2 P O W E R D O O R L O C K S Y S T E M 594 ...

Page 605: ...ST BETWEEN CAVITIES 88 ACTUATE THE LF LIGHT FLASH ON AND YES REPLACE THE LF 90 OF THE LF DOOR DOOR UNLOCK RELAY OFF WHEN THE RELAY DOOR UNLOCK UNLOCK RELAY CONN AND OBSERVE THE IS ACTUATED RELAY FIG 1 TEST LIGHT NO STOP THE ACTUATION CONNECT A JUMPER REMOVE THE BODY WIRE BETWEEN GROUND CONTROL MODULE FROM AND THE LF DOOR THE JUNCTION BLOCK UNLOCK RELAY CONN CAVITY 90 FIG 1 WITH AN OHMMETER 20 WAY ...

Page 606: ...TEST 9A REPAIRING DOOR LOCK INHIBIT Perform TEST 1A Before Proceeding FIG 1 FIG 2 P O W E R D O O R L O C K S Y S T E M 596 ...

Page 607: ...ITION SWITCH CLOSED NO DISCONNECT THE USING AN OHMMETER IGNITION SWITCH MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN HARNESS GROUND AND THE BELOW 5 0 OHMS GROUND CIRCUIT CONNECTOR GROUND CIRCUIT FIG 1 YES CONNECT A JUMPER WITH THE DRB READ DOES THE DRB WIRE BETWEEN THE THE KEY IN DISPLAY YES REPLACE THE KEY IN IGNITION SW IGNITION SWITCH KEY IN IGN IGNITION SWITCH SENSE AND GROUND STATUS C...

Page 608: ...TPUT AND DISPLAY YES PERFORM DOOR DOORS ARE CLOSED READ THE DRIVER S DRDOOR AJAR AJAR TEST 1A DOOR AJAR STATUS CLOSED NO WITH THE DRB READ ALL OTHER DOOR DOES THE DRB YES PERFORM DOOR AJAR SWITCH DISPLAY ANY DOOR AJAR TEST 1A STATES AJAR CLOSED NO WITH THE DRB READ TURN IGNITION ON PCI BUS ENGINE ENGINE OFF INFO UNDER MONITORS DOES THE TPS THE TP SENSOR IS OBSERVE THE TPS PERCENTAGE NO INOPERATIVE...

Page 609: ...E ALL DOORS PLACE TRANSMISSION BE SURE IT IS IN DRIVE GEAR TURNED OFF WITH THE DRB READ DOES THE KMH MPH THE VSS SIGNAL IS PCI BUS ENGINE OBSERVE THE VSS INCREASE AS THE NO INOPERATIVE INFO WHILE THE WHEELS THROTTLE IS OPENED ARE ROTATING SLIGHTLY FOR 15 DIAGNOSE USING UNDER MONITORS SECONDS YES THE APPROPRIATE POWERTRAIN DIAGNOSTIC MANUAL DID THE DOOR LOCKS YES KEY OFF SYSTEM IS LOCK OPERATING PR...

Page 610: ...lock or unlock button on the transmitter If the RKE responded correctly replace and program a new transmitter If the RKE is inoperative or operates improperly replace RKE module and program all the vehicles transmitters Programming a transmitter 11B Horn chirp inoperative 11C Cancel horn chirp Customer Programmable or use DRB Change decklid to single button depression Customer Programmable Only P ...

Page 611: ...nsmitter batteries are approximately 3 2 volts each 2 Turn the ignition on engine off and ensure the vehicle is in the park position 3 Using the DRB select Miscellaneous Program RKE The BCM will chime 4 Press any button on the transmitter The BCM will chime 5 Press any button on the next transmitter The BCM will chime A Repeat for all other transmitters that will be used up to a total of 4 per veh...

Page 612: ...TEST 11C REPAIRING INOPERATIVE HORN CHIRP Perform TEST 11A Before Proceeding FIG 1 P O W E R D O O R L O C K S Y S T E M 602 ...

Page 613: ...ENABLE HORN MISCELLANEOUS DISABLED CHIRP NO REPLACE THE BODY USING THE DRB DID THE HORN SOUND YES CONTROL MODULE TO ACTUATE THE HORN DURING ACTUATION CORRECT HORN CHIRP RELAY INOPERATIVE NO REMOVE THE BODY INSPECT THE 20 WAY CONTROL MODULE FROM INTERNAL CONNECTOR ARE ANY TERMINALS YES REPAIR OR REPLACE THE JUNCTION BLOCK FOR DAMAGE DAMAGED THE JUNCTION BLOCK AS NECESSARY SEE GENERAL INFO 4 0 FIG 1...

Page 614: ...TEST 12A REPAIRING INOPERATIVE DECKLID RELEASE Perform TEST 1A Before Proceeding FIG 1 FIG 2 P O W E R D O O R L O C K S Y S T E M 604 ...

Page 615: ...HMS GROUND CIRCUIT CONNECTOR GROUND CIRCUIT FIG 1 FIG 1 YES CONNECT A TEST GROUND CIRCUITS LIGHT BETWEEN THE CAVITIES 1 3 DECKLID RELEASE CONTROL AND FIG 1 PRESS THE DECKLID DID THE TEST LIGHT RELEASE SWITCH AND ILLUMINATE WHEN YES REPLACE THE OBSERVE THE TEST THE SWITCH WAS DECKLID RELEASE LIGHT PRESSED SOLENOID NO DISCONNECT THE LEAVE THE TEST DECKLID RELEASE LIGHT CONNECTED SWITCH HARNESS CONNE...

Page 616: ...TEST 12A CONTINUED REPAIRING INOPERATIVE DECKLID RELEASE FIG 1 FIG 2 FIG 3 FIG 4 P O W E R D O O R L O C K S Y S T E M 606 ...

Page 617: ... CONNECTED MEASURE THE DECKLID IS THE VOLTAGE NO DECKLID RELEASE DISCONNECT THE BCM RELEASE SWITCH ABOVE 10 0 VOLTS SWITCH OUTPUT C1 HARNESS CONN OUTPUT CIRCUIT CIRCUIT SEE GENERAL INFO 4 0 FIG 2 YES CONNECT A JUMPER DISCONNECT THE WIRE BETWEEN THE JUMPER WIRE AND DECKLID RELEASE THE TEST LIGHT CONTROL CKT AND GROUND FIG 3 REMOVE THE BODY CONNECT A TEST LIGHT REPAIR THE OPEN CONTROL MODULE BETWEEN...

Page 618: ...TEST 13A REPAIRING DR DOOR CENTRAL LOCK ARM UNLOCK DISARM SWITCH FAILURE TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 P O W E R D O O R L O C K S Y S T E M 608 ...

Page 619: ... CONTINUE SLOWLY DOES THE VOLTAGE TURNING THE SWITCH CHANGE FROM 0 0 TO YES SWITCH IS AND OBSERVE THE ABOVE 3 0 VOLTS AND OPERATING PROPERLY VOLTAGE ON THE RETURN TO 0 0 IN AT THIS TIME DRB NEUTRAL POSITION NO REMOVE LEFT FRONT USING THE DRB DOOR TRIM PANEL READ THE LT DOOR IS ANY VOLTAGE NO REPLACE THE DOOR DISCONNECT THE DOOR ARM DISARM SW PRESENT KEY CYLINDER KEY CYL SW HARNESS VOLTAGE SWITCH C...

Page 620: ...TEST 14A REPAIRING PASS DOOR CENTRAL LOCK ARM UNLOCK DISARM SWITCH FAILURE TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 P O W E R D O O R L O C K S Y S T E M 610 ...

Page 621: ... CONTINUE SLOWLY DOES THE VOLTAGE TURNING THE SWITCH CHANGE FROM 0 0 TO YES SWITCH IS AND OBSERVE THE ABOVE 3 0 VOLTS AND OPERATING PROPERLY VOLTAGE ON THE RETURN TO 0 0 IN AT THIS TIME DRB NEUTRAL POSITION NO REMOVE RIGHT FRONT USING THE DRB DOOR TRIM PANEL READ THE RT DOOR IS ANY VOLTAGE NO REPLACE THE DOOR DISCONNECT THE DOOR ARM DISARM SW PRESENT KEY CYLINDER KEY CYL SW HARNESS VOLTAGE SWITCH ...

Page 622: ...TEST 15A REPAIRING RKE UNABLE TO ENTER PROGRAM MODE TROUBLE CODE Perform TEST 1A Before Proceeding P O W E R D O O R L O C K S Y S T E M 612 ...

Page 623: ...ING RKE PROGRAM MODE ENTERED WITHOUT PROGRAM REQUEST TROUBLE CODE Perform TEST 1A Before Proceeding Perform Verification TEST VER 2A Check connectors Clean repair as necessary P O W E R D O O R L O C K S Y S T E M 613 ...

Page 624: ...TEST 17A REPAIRING DECKLID RELEASE SWITCH FAILURE TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 P O W E R D O O R L O C K S Y S T E M 614 ...

Page 625: ...THE IGNITION USING THE DRB SWITCH OFF THEN ERASE THE TROUBLE ON CODE WAIT AT LEAST 30 SECONDS DID THE DECKLID USING THE DRB RELEASE SWITCH NO REPLACE THE READ DTC s FAILURE CODE DECKLID RELEASE REAPPEAR SWITCH YES DISCONNECT THE USING A VOLTMETER REPAIR THE DECKLID BODY CONTROL MEASURE THE IS ANY VOLTAGE YES RELEASE SWITCH MODULE C1 HARNESS DECKLID RELEASE PRESENT OUTPUT CIRCUIT FOR CONNECTOR SWIT...

Page 626: ...TEST 18A REPAIRING DECKLID RELEASE SOLENOID OUTPUT FAILURE TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 P O W E R D O O R L O C K S Y S T E M 616 ...

Page 627: ... TEST LEAVE THE TEST ACTUATE THE LIGHT FLASH ON AND YES REPLACE THE LIGHT CONNECTED DECKLID RELEASE OFF AS THE DECKLID RELEASE SWITCH SOLENOID IS SOLENOID ACTUATED NO STOP THE WITH AN OHMMETER REPAIR THE DECKLID ACTUATION MEASURE BETWEEN IS THE RESISTANCE YES RELEASE CONTROL TURN THE IGNITION GROUND AND THE BELOW 5 0 OHMS CIRCUIT FOR A SHORT OFF DECKLID RELEASE TO GROUND IF OK CONTROL CKT FIG 1 RE...

Page 628: ...TEST 18A CONTINUED REPAIRING DECKLID RELEASE SOLENOID OUTPUT FAILURE TROUBLE CODE P O W E R D O O R L O C K S Y S T E M 618 ...

Page 629: ...LEAVE THE TEST CONTINUED FROM LIGHT CONNECTED THE PREVIOUS FROM THE PREVIOUS PAGE PAGE KEY OFF REMOVE REPAIR THE DECKLID THE BODY CONTROL TURN THE IGNITION IS THE TEST LIGHT YES RELEASE CONTROL MODULE FROM THE ON ILLUMINATED CIRCUIT FOR A SHORT JUNCTION BLOCK TO VOLTAGE IF OK REPLACE THE J B NO REPLACE THE BODY CONTROL MODULE P O W E R D O O R L O C K S Y S T E M 619 ...

Page 630: ...TEST 1A IDENTIFYING VEHICLE COMMUNICATION PROBLEMS Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding FIG 1 V E H I C L E C O M M U N I C A T I O N 620 ...

Page 631: ... is displaying NO BUS attempt to communicate with the instrument cluster and follow the appropriate test listed below NO RESPONSE FROM PERFORM Airbag Control Module ACM TEST 2A Automatic Temperature Control ATC TEST 3A Body Control Module BCM Also diagnostic trouble code Battery Power to Module Disconnected TEST 4A Controller Anti Lock Brakes CAB TEST 5A Mechanical Instrument Cluster MIC TEST 6A O...

Page 632: ...TEST 2A REPAIRING AIRBAG CONTROL MODULE NO RESPONSE Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 V E H I C L E C O M M U N I C A T I O N 622 ...

Page 633: ...2 OK REPLACE THE FIG 1 JUNCTION BLOCK YES WARNING MAKE SURE REINSTALL THE FUSE THE IGNITION IS DISCONNECT THE OFF AND WAIT 2 AIRBAG CONTROL TURN IGNITION ON MINUTES BEFORE MODULE HARNESS PROCEEDING CONNECTOR FIG 2 OUTPUT RUN START REPAIR THE OPEN USING A VOLTMETER CIRCUIT CAV 14 IS THE VOLTAGE NO FUSED IGNITION MEASURE THE FUSED ABOVE 10 0 VOLTS SWITCH OUTPUT CKT IGNITION SWITCH RUN START FIG 3 YE...

Page 634: ...TEST 2A CONTINUED REPAIRING AIRBAG CONTROL MODULE NO RESPONSE FIG 1 FIG 2 V E H I C L E C O M M U N I C A T I O N 624 ...

Page 635: ...N PAGE USING A VOLTMETER MEASURE THE PCI IS THE VOLTAGE YES PERFORM BUS CIRCUIT ABOVE 0 5 VOLTS AIRBAG SYSTEM TEST 19A FIG 1 NO USING AN OHMMETER DISCONNECT THE MEASURE THE PCI BUS BATTERY CABLES CIRCUIT BETWEEN THE ACM HARNESS CONNECTOR AND THE DATA LINK CONNECTOR IS THE RESISTANCE YES PERFORM BELOW 5 0 OHMS AIRBAG SYSTEM TEST 19A FIGS 1 AND 2 NO REPAIR OPEN PCI BUS ACM CIRCUIT V E H I C L E C O ...

Page 636: ...TEST 2B REPAIRING AIRBAG CONTROL MODULE NO RESPONSE Perform TEST 2A Before Proceeding FIG 1 V E H I C L E C O M M U N I C A T I O N 626 ...

Page 637: ...FIG 1 THE JUNCTION BLOCK YES WARNING TURN USING AN OHMMETER IGNITION OFF AND MEASURE BETWEEN GND IS THE RESISTANCE NO REPLACE THE FUSE WAIT 2 MINUTES AND THE FUSED IGN SW BELOW 5 0 OHMS RETEST SYSTEM BEFORE PROCEEDING OUTPUT RUN START AT FUSE 22 FIG 1 YES DISCONNECT THE USING AN OHMMETER REPAIR THE FUSED AIRBAG CONTROL MEASURE BETWEEN GND IS THE RESISTANCE YES IGNITION SWITCH MODULE HARNESS AND TH...

Page 638: ...TEST 3A REPAIRING AUTOMATIC TEMPERATURE CONTROL MODULE NO RESPONSE OR ATC MESSAGES NOT RECEIVED TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 V E H I C L E C O M M U N I C A T I O N 628 ...

Page 639: ...HE NEXT PAGE FIG 1 YES USING AN OHMMETER MEASURE BETWEEN IS THE RESISTANCE NO GROUND AND THE FUSED BELOW 5 0 OHMS REPLACE FUSE 17 IGNITION SWITCH OUTPUT CKT FIG 1 YES DISCONNECT THE USING AN OHMMETER REPAIR THE FUSED AUTOMATIC MEASURE BETWEEN IS THE RESISTANCE YES IGNITION SWITCH TEMPERATURE CONTROL GROUND AND THE FUSED BELOW 5 0 OHMS OUTPUT CIRCUIT FOR A ATC HEAD HARNESS IGNITION SWITCH SHORT TO ...

Page 640: ...TEST 3A CONTINUED REPAIRING AUTOMATIC TEMPERATURE CONTROL MODULE NO RESPONSE OR ATC MESSAGES NOT RECEIVED TROUBLE CODE FIG 1 FIG 2 V E H I C L E C O M M U N I C A T I O N 630 ...

Page 641: ...PAIR THE OPEN AUTOMATIC VOLTMETER MEASURE IS THE VOLTAGE NO FUSED IGNITION TEMPERATURE CONTROL THE FUSED IGNITION ABOVE 10 0 VOLTS SWITCH OUTPUT ATC HEAD HARNESS SWITCH OUTPUT CKT BETWEEN THE FUSE CONNECTOR FIG 2 AND THE ATC HEAD YES KEY OFF USING AN OHMMETER CLOSE ALL DOORS MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN AND MAKE SURE GROUND AND BOTH BELOW 5 0 OHMS FOR GROUND COURTESY LAMPS ...

Page 642: ...TEST 4A REPAIRING BODY CONTROL MODULE NO RESPONSE OR BATTERY POWER TO MODULE DISCONNECTED TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 V E H I C L E C O M M U N I C A T I O N 632 ...

Page 643: ...EST START TEST 4A READ THE BCM BATTERY POWER TO 4A ON THE NEXT DTC S MODULE PAGE DISCONNECTED DTC YES KEY OFF REMOVE THE BODY CONTROL MODULE FROM THE JUNCTION BLOCK KEY ON JUNCTION BLOCK USING A VOLTMETER 20 WAY INTERNAL IS THE VOLTAGE NO REPLACE THE MEASURE THE FUSED CONNECTOR ABOVE 10 0 VOLTS JUNCTION BLOCK B CIRCUIT AT THE FIG 1 YES REPLACE THE BODY CONTROL MODULE NOTE FOR LOCATION OF ALL COMPO...

Page 644: ...TEST 4A CONTINUED REPAIRING BODY CONTROL MODULE NO RESPONSE FIG 1 FIG 2 V E H I C L E C O M M U N I C A T I O N 634 ...

Page 645: ...LINK CONNECTOR FIG 1 NO IS THE VOLTAGE YES PERFORM TEST BELOW 0 2 VOLTS 13A NO REMOVE THE BODY ENSURE THAT THE CONTROL MODULE JUNCTION BLOCK TURN IGNITION ON TURN IGNITION OFF FROM THE JUNCTION CONNECTORS ARE ENGINE OFF BLOCK CONNECTED USING A VOLTMETER JUNCTION BLOCK MEASURE THE FUSED 20 WAY INTERNAL IS THE VOLTAGE NO REPLACE THE B CIRCUIT AT CONNECTOR ABOVE 10 0 VOLTS JUNCTION BLOCK THE FIG 2 YE...

Page 646: ...TEST 4A CONTINUED REPAIRING BODY CONTROL MODULE NO RESPONSE FIG 1 V E H I C L E C O M M U N I C A T I O N 636 ...

Page 647: ...CUIT IF MEASURE BETWEEN INTERNAL BELOW 5 0 OHMS OK REPLACE THE GND AND THE GROUND CONNECTOR JUNCTION BLOCK CKT CAV 1 FIG 1 YES USING AN OHMMETER AT THE JUNCTION REPAIR THE OPEN MEASURE BETWEEN BLOCK 20 WAY IS THE RESISTANCE NO GROUND CIRCUIT IF GND AND THE GROUND INTERNAL BELOW 5 0 OHMS OK REPLACE THE CKT CAV 20 CONNECTOR JUNCTION BLOCK FIG 1 YES REPLACE THE BODY CONTROL MODULE NOTE FOR LOCATION O...

Page 648: ...TEST 5A REPAIRING CONTROLLER ANTI LOCK BRAKES MODULE NO RESPONSE Perform TEST 1A Before Proceeding FIG 1 FIG 2 V E H I C L E C O M M U N I C A T I O N 638 ...

Page 649: ...CUITS AT FIG 1 YES USING A VOLTMETER MEASURE THE FUSED IS THE VOLTAGE NO PERFORM TEST B CIRCUIT ABOVE 10 0 VOLTS 5B CAVITY 9 FIG 1 YES FUSED IGNITION TURN IGNITION ON SWITCH OUTPUT IS THE VOLTAGE YES CONTINUE TEST USING A VOLTMETER CIRCUIT ABOVE 10 0 VOLTS 5A ON THE NEXT MEASURE THE CAVITY 23 PAGE FIG 1 NO REMOVE AND INSPECT REPAIR THE OPEN FUSE 17 ABS YES FUSED IGNITION FUSE IN THE IS THE FUSE OK...

Page 650: ...TEST 5A CONTINUED REPAIRING CONTROLLER ANTI LOCK BRAKES MODULE NO RESPONSE FIG 1 FIG 2 V E H I C L E C O M M U N I C A T I O N 640 ...

Page 651: ...necessary TEST 5A CONTINUED FROM THE PREVIOUS TURN IGNITION OFF PAGE USING AN OHMMETER THE CAB HARNESS REPLACE THE MEASURE THE PCI CONN AND THE BCM IS THE RESISTANCE YES CONTROLLER BUS CIRCUIT C3 HARNESS CONN BELOW 5 0 OHMS ANTILOCK BRAKE BETWEEN CAB FIGS 1 AND 2 NO REPAIR THE OPEN PCI BUS CIRCUIT V E H I C L E C O M M U N I C A T I O N 641 ...

Page 652: ...TEST 5B REPAIRING CONTROLLER ANTI LOCK BRAKES MODULE NO RESPONSE Perform TEST 5A Before Proceeding FIG 1 FIG 2 V E H I C L E C O M M U N I C A T I O N 642 ...

Page 653: ...repair as necessary REMOVE AND INSPECT FUSE H IN THE YES REPAIR THE OPEN START TEST 5B PDC IS THE FUSE OK FUSED B CIRCUIT FIG 1 NO USING AN OHMMETER MEASURE BETWEEN IS THE RESISTANCE YES REPAIR THE FUSED GROUND AND THE BELOW 5 0 OHMS B CIRCUIT FOR A FUSED B CIRCUIT SHORT TO GROUND CAV 9 FIG 2 NO REPLACE THE FUSE V E H I C L E C O M M U N I C A T I O N 643 ...

Page 654: ...TEST 6A REPAIRING INSTRUMENT CLUSTER MODULE NO RESPONSE Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 V E H I C L E C O M M U N I C A T I O N 644 ...

Page 655: ...TER IS THE RESISTANCE NO REPAIR THE OPEN MEASURE BETWEEN BELOW 5 0 OHMS GROUND CIRCUIT GROUND AND THE GROUND CKT FIG 1 YES USING AN OHMMETER MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN GROUND AND THE BELOW 5 0 OHMS GROUND CIRCUIT GROUND CIRCUIT FIG 2 YES DISCONNECT THE USING AN OHMMETER BODY CONTROL MEASURE THE PCI BUS MODULE C1 HARNESS CIRCUIT BETWEEN THE CONNECTOR BCM C1 HARNESS CONNECT...

Page 656: ...TEST 7A REPAIRING BLANK SCREEN OR NO RESPONSE CONDITION ON OTIS Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 V E H I C L E C O M M U N I C A T I O N 646 ...

Page 657: ... MEASURE THE PCI DOES THE VOLTAGE YES OVERHEAD TRAVEL BUS CIRCUIT MODULATE ABOVE 0 3 INFORMATION SYSTEM VOLTS OTIS MODULE NO DISCONNECT THE USING A VOLTMETER REPAIR THE OPEN HEADLINER J B MEASURE THE PCI DOES THE VOLTAGE YES PCI BUS CIRCUIT HARNESS BUS CIRCUIT MODULATE ABOVE 0 3 BETWEEN THE CONNECTOR PIN 4 VOLTS JUNCTION BLOCK AND FIG 2 FIG 2 THE OTIS NO REMOVE THE BODY JUNCTION BLOCK CONTROL MODU...

Page 658: ...TEST 8A REPAIRING POWERTRAIN CONTROL MODULE NO RESPONSE CONDITION Perform TEST 1A Before Proceeding FIG 1 V E H I C L E C O M M U N I C A T I O N 648 ...

Page 659: ...YES START TEST NS 6A AND READ THE PCM DISPLAY NO IN THE POWERTRAIN DTC S RESPONSE BOOK NO DISCONNECT THE POWERTRAIN CONTROL TURN IGNITION OFF MODULE C2 HARNESS CONNECTOR MEASURE THE PCI BUS USE AN OHMMETER IN CKT FROM DATA LINK IS THE RESISTANCE NO REPAIR THE OPEN THE FOLLOWING CONN TO POWERTRAIN BELOW 5 0 OHMS PCI BUS CIRCUIT STEP CONTROL MODULE C2 CONN FIG 1 YES REPLACE THE POWERTRAIN CONTROL MO...

Page 660: ...TEST 9A REPAIRING RADIO NO RESPONSE CONDITION Perform TEST 1A Before Proceeding FIG 1 FIG 2 V E H I C L E C O M M U N I C A T I O N 650 ...

Page 661: ... MEASURE THE FUSED IS THE VOLTAGE NO REPAIR THE OPEN DISCONNECT THE B CIRCUIT ABOVE 10 0 VOLTS FUSED B RADIO C2 HARNESS CIRCUIT CONNECTOR FIG 2 YES USING A VOLTMETER REPAIR THE OPEN MEASURE THE FUSED IS THE VOLTAGE NO FUSED IGNITION TURN IGNITION ON IGNITION SWITCH ABOVE 10 0 VOLTS SWITCH OUTPUT OUTPUT CIRCUIT CIRCUIT FIG 2 YES INSPECT THE RADIO IS THE GROUND GROUND STRAP AND STRAP AND ANTENNA NO ...

Page 662: ...TEST 9A CONTINUED REPAIRING RADIO NO RESPONSE CONDITION FIG 1 V E H I C L E C O M M U N I C A T I O N 652 ...

Page 663: ...9A DISCONNECT THE PCI CONTINUED FROM HARNESS CONNECTOR THE PREVIOUS C3 ON THE BACK PAGE OF THE RADIO USING A VOLTMETER TURN IGNITION ON MEASURE THE PCI DOES THE VOLTAGE YES REPLACE THE ENGINE OFF BUS CIRCUIT MODULATE ABOVE 0 3 RADIO OPEN ALL DOORS VOLTS FIG 1 NO REPAIR THE OPEN PCI BUS CIRCUIT V E H I C L E C O M M U N I C A T I O N 653 ...

Page 664: ...TEST 9B REPAIRING RADIO NO RESPONSE CONDITION Perform TEST 9A Before Proceeding FIG 1 V E H I C L E C O M M U N I C A T I O N 654 ...

Page 665: ...IGNITION OFF DISCONNECT THE START TEST 9B RADIO C2 HARNESS CONNECTOR USING AN OHMMETER REPAIR THE FUSED MEASURE BETWEEN IS THE RESISTANCE YES IGNITION SWITCH GROUND AND THE FUSED BELOW 5 0 OHMS OUTPUT CKT FOR A IGNITION SWITCH SHORT TO GROUND OUTPUT CKT FIG 1 REPLACE THE FUSE NO REPLACE THE RADIO AND REPLACE THE FUSE V E H I C L E C O M M U N I C A T I O N 655 ...

Page 666: ...TEST 10A REPAIRING TRANSMISSION CONTROL MODULE NO RESPONSE CONDITION Perform TEST 1A Before Proceeding FIG 1 V E H I C L E C O M M U N I C A T I O N 656 ...

Page 667: ...T CIRCUIT FIG 1 YES USING A VOLTMETER MEASURE THE FUSED IS THE VOLTAGE NO REPAIR THE OPEN B CIRCUIT ABOVE 10 0 VOLTS FUSED B CIRCUIT FIG 1 YES USING AN OHMMETER MEASURE BETWEEN IS THE RESISTENCE NO REPAIR THE OPEN TURN IGNITION OFF GROUND AND BOTH BELOW 5 0 OHMS ON GROUND GROUND CIRCUITS BOTH CIRCUITS CIRCUIT S FIG 1 YES USING A VOLTMETER TURN IGNITION ON MEASURE THE PCI DOES THE VOLTAGE NO REPAIR...

Page 668: ...EST 11A REPAIRING MEMORY HEATED SEAT MIRROR MODULE NO RESPONSE OR MHSMM MESSAGES NOT RECEIVED TROUBLE CODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 FIG 3 V E H I C L E C O M M U N I C A T I O N 658 ...

Page 669: ...PS GROUND AND THE BELOW 5 0 OHMS GROUND CIRCUIT OFF GROUND CIRCUIT CAVITY 1 FIG 1 YES DISCONNECT THE MHSMM C1 HARNESS TURN THE IGNITION CONNECTOR HEADLAMPS AND COURTESY LAMPS ON FIG 2 USING A VOLTMETER MEASURE THE PCI DOES THE VOLTAGE YES REPLACE THE MEMORY BUS CIRCUIT MODULATE ABOVE 0 3 HEATED SEAT MIRROR VOLTS MODULE FIG 2 NO KEY OFF CONNECT A JUMPER DISCONNECT THE BCM WIRE BETWEEN C4 HARNESS GR...

Page 670: ...TEST 12A REPAIRING PCI BUS CIRCUIT SHORTED TO BATTERY Perform TEST 1A Before Proceeding V E H I C L E C O M M U N I C A T I O N 660 ...

Page 671: ...DISCONNECT THE DOES THE DRB POWERTRAIN CONTROL DISPLAY NO REPLACE THE MODULE PCM BUS SHORT TO POWERTRAIN CONTROL HARNESS BATTERY MODULE PCM CONNECTORS YES DISCONNECT THE DOES THE DRB REPLACE THE CONTROLLER DISPLAY NO CONTROLLER ANTILOCK BRAKE BUS SHORT TO ANTILOCK BRAKE CAB HARNESS BATTERY CAB CONNECTOR YES DISCONNECT THE DOES THE DRB REPLACE THE OVERHEAD TRAVEL DISPLAY NO OVERHEAD TRAVEL INFORMAT...

Page 672: ...TEST 12A CONTINUED REPAIRING PCI BUS CIRCUIT SHORTED TO BATTERY V E H I C L E C O M M U N I C A T I O N 662 ...

Page 673: ...LAY NO REPLACE THE SENTRY IMMOBILIZER MODULE BUS SHORT TO KEY IMMOBILIZER SKIM HARNESS CONN BATTERY MODULE SKIM IF EQUIPPED YES DOES THE DRB DISCONNECT THE DISPLAY NO REPLACE THE RADIO C3 HARNESS BUS SHORT TO RADIO CONNECTOR BATTERY YES DISCONNECT THE DOES THE DRB INSTRUMENT CLUSTER DISPLAY NO REPLACE THE C1 HARNESS BUS SHORT TO INSTRUMENT CLUSTER CONNECTOR BATTERY MIC YES WARNING TURN THE DISCONN...

Page 674: ...TEST 12A CONTINUED REPAIRING PCI BUS CIRCUIT SHORTED TO BATTERY FIG 1 FIG 2 FIG 3 FIG 4 V E H I C L E C O M M U N I C A T I O N 664 ...

Page 675: ...TED BLOCK WITH A VOLTMETER IS THE VOLTAGE TURN THE IGNITION MEASURE EACH OF THE ABOVE 8 0 VOLTS ON YES REPAIR THE PCI BUS ON PCI BUS CIRCUITS ANY OF THE CIRCUIT FOR A CIRCUITS SHORT TO BATTERY FIGS 1 2 3 NO WITH A VOLTMETER REPAIR THE PCI BUS MEASURE CAVITY 10 OF IS THE VOLTAGE YES CIRCUIT OTIS FOR A THE JUNCTION BLOCK ABOVE 8 0 VOLTS SHORT TO BATTERY IF 20 WAY INTERNAL OK REPLACE THE CONNECTOR FI...

Page 676: ...TEST 13A REPAIRING PCI BUS CIRCUIT SHORTED TO GROUND Perform TEST 1A Before Proceeding FIG 1 V E H I C L E C O M M U N I C A T I O N 666 ...

Page 677: ...ANSMISSION DISPLAY NO TRANSMISSION ON CONTROL MODULE BUS SHORT TO CONTROL MODULE TCM HARNESS GROUND TCM CONNECTOR YES DISCONNECT THE DOES THE DRB POWERTRAIN CONTROL DISPLAY NO REPLACE THE MODULE PCM BUS SHORT TO POWERTRAIN CONTROL HARNESS GROUND MODULE PCM CONNECTORS YES DISCONNECT THE DOES THE DRB REPLACE THE CONTROLLER DISPLAY NO CONTROLLER ANTILOCK BRAKE BUS SHORT TO ANTILOCK BRAKE CAB HARNESS ...

Page 678: ...TEST 13A CONTINUED REPAIRING PCI BUS CIRCUT SHORTED TO GROUND V E H I C L E C O M M U N I C A T I O N 668 ...

Page 679: ...ISPLAY NO REPLACE THE SENTRY IMMOBILIZER MODULE BUS SHORT TO KEY IMMOBILIZER SKIM HARNESS CONN GROUND MODULE SKIM IF EQUIPPED YES DOES THE DRB DISCONNECT THE DISPLAY NO REPLACE THE RADIO C3 HARNESS BUS SHORT TO RADIO CONNECTOR GROUND YES DISCONNECT THE DOES THE DRB INSTRUMENT CLUSTER DISPLAY NO REPLACE THE C1 HARNESS BUS SHORT TO INSTRUMENT CONNECTOR GROUND CLUSTER YES WARNING TURN THE DISCONNECT ...

Page 680: ...TEST 13A CONTINUED REPAIRING PCI BUS CIRCUIT SHORTED TO GROUND FIG 1 FIG 2 FIG 3 FIG 4 V E H I C L E C O M M U N I C A T I O N 670 ...

Page 681: ...K WITH AN OHMMETER IS THE RESISTANCE MEASURE BETWEEN BELOW 5 0 OHMS ON YES REPAIR THE PCI BUS GROUND AND EACH OF ANY OF THE CIRCUIT FOR A THE PCI BUS CKTS CIRCUITS SHORT TO GROUND FIGS 1 2 3 NO WITH AN OHMMETER OF THE JUNCTION REPAIR THE PCI BUS MEASURE BETWEEN BLOCK 20 WAY IS THE RESISTANCE YES CIRCUIT OTIS FOR GROUND AND INTERNAL CONNECTOR BELOW 5 0 OHMS A SHORT TO GROUND CAVITY 10 IF OK REPLACE...

Page 682: ...TEST 14A REPAIRING FUSED IGNITION SWITCH OUTPUT TO BCM Perform TEST 1A Before Proceeding FIG 1 FIG 2 V E H I C L E C O M M U N I C A T I O N 672 ...

Page 683: ... THE FUSED IGN BELOW 5 0 OHMS OUTPUT CKT FOR A SWITCH OUTPUT CKT AT SHORT TO GND BETWEEN SEE GENERAL INFO 4 0 FUSE 14 FIG 1 OTIS AND J B YES DISCONNECT THE USING AN OHMMETER CHECK SCHEMATIC JUNCTION BLOCK C4 MEASURE BETWEEN GND IS THE RESISTANCE NO FOR OTHER AND C7 HARNESS AND THE FUSED IGN BELOW 5 0 OHMS ACCESSORIES THAT CONNECTORS SWITCH OUTPUT CKT AT ARE ON THIS SEE GENERAL INFO 4 0 FUSE 14 FIG...

Page 684: ...TEST 14A CONTINUED REPAIRING FUSED IGNITION SWITCH OUTPUT TO BCM FIG 1 FIG 2 V E H I C L E C O M M U N I C A T I O N 674 ...

Page 685: ...OVE 10 0 VOLTS CKT FROM IGNITION PAGE OUTPUT CKT AT FUSE SWITCH TO THE 14 FIG 1 JUNCTION BLOCK YES KEY OFF ENSURE THAT ALL REINSTALL FUSE REMOVE THE BODY JUNCTION BLOCK 14 CONTROL MODULE CONNECTORS ARE FROM THE JUNCTION STILL CONNECTED BLOCK USING A VOLTMETER TURN IGNITION ON MEASURE THE FUSED IS THE VOLTAGE NO REPLACE THE ENGINE OFF IGNITION SWITCH ABOVE 10 0 VOLTS JUNCTION BLOCK OUTPUT CKT CAV 5...

Page 686: ...TEST 1A IDENTIFYING VEHICLE THEFT SECURITY SYSTEM PROBLEMS Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding V E H I C L E T H E F T S E C U R I T Y S Y S T E M 676 ...

Page 687: ...he horn should sound twice and the headlights and VTSS indicator should flash If the horn fails to sound perform TEST 4A If the VTSS indicator lamp fails to flash perform TEST 5A If the headlamps park lamps fail to flash perform Exterior Lighting TEST 1A 6 Remove the key from the ignition switch Perform each action and if the horn doesn t sound after each action perform the test indicated below Op...

Page 688: ...TEST 2A DISARMING THE SYSTEM Perform TEST 1A Before Proceeding V E H I C L E T H E F T S E C U R I T Y S Y S T E M 678 ...

Page 689: ...EN CURRENT MODE 1A MONITORS READ DISARMED THE VTSS STATUS NO PUT KEY IN RIGHT FRONT DOOR AND TURN TO THE UNLOCK TURN IGNITION ON POSITION PERFORM AGAIN WITH THE DOES THE DRB YES POWER DOOR DRB READ THE VTSS DISPLAY CURRENT LOCK SYSTEM STATUS MODE DISARMED TEST 13A NO PERFORM USING THE RKE WITH THE DRB READ DOES THE DRB YES POWER DOOR TRANSMITTER THE VTSS STATUS DISPLAY CURRENT LOCK SYSTEM UNLOCK T...

Page 690: ...TEST 3A REPAIRING VTSS INDICATOR LAMP STAYS ON Perform TEST 1A Before Proceeding FIG 1 FIG 2 V E H I C L E T H E F T S E C U R I T Y S Y S T E M 680 ...

Page 691: ...INDER MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN SWITCH 2 WAY GROUND AND THE BELOW 30 0 OHMS GROUND CIRCUIT HARNESS GROUND CIRCUIT CONNECTOR FIG 1 YES JUMPER THE DECKLID AGAIN WITH THE SECURITY SWITCH DRB READ THE DOES THE SWITCH YES REPAIR REPLACE THE SENSE CIRCUIT TO DECKLID CYLINDER STATUS READ DECKLID CYLINDER GROUND AT 2 WAY SWITCH STATUS PRESENT SWITCH HARNESS CONN FIG 1 NO DISCONN...

Page 692: ...TEST 3A CONTINUED REPAIRING VTSS INDICATOR LAMP STAYS ON FIG 1 V E H I C L E T H E F T S E C U R I T Y S Y S T E M 682 ...

Page 693: ...repair as necessary TEST 3A DISCONNECT THE REPAIR THE VTSS CONTINUED FROM BCM C2 HARNESS IS THE VTSS YES INDICATOR LAMP THE PREVIOUS CONNECTOR INDICATOR LAMP DRIVER CIRCUIT FOR PAGE STILL ILLUMINATED A SHORT TO FIG 1 GROUND NO REPLACE THE BODY CONTROL MODULE V E H I C L E T H E F T S E C U R I T Y S Y S T E M 683 ...

Page 694: ...TEST 4A REPAIRING HORN CIRCUIT Perform TEST 1A Before Proceeding FIG 1 V E H I C L E T H E F T S E C U R I T Y S Y S T E M 684 ...

Page 695: ...RING WHEEL REPAIR YES WITH THE DRB ENTER BODY OBSERVE THE DOES THE DRB NO PERFORM TEST COMPUTER THEN DECKLID CYLINDER DISPLAY SWITCH 3A INPUT OUTPUT SWITCH STATUS PRESENT YES REMOVE THE BODY CONNECT A JUMPER CONTROL MODULE WIRE BETWEEN GROUND DOES THE HORN NO REPLACE THE FROM THE JUNCTION AND THE HORN RELAY SOUND JUNCTION BLOCK BLOCK CONTROL CIRCUIT CAV 18 FIG 1 YES REPLACE THE BODY CONTROL MODULE...

Page 696: ...TEST 5A REPAIRING VTSS INDICATOR LAMP DRIVER CIRCUIT Perform TEST 1A Before Proceeding FIG 1 FIG 2 V E H I C L E T H E F T S E C U R I T Y S Y S T E M 686 ...

Page 697: ...ATOR LAMP LAMP 10 0 VOLTS DRIVER CKT FIG 1 NO WITH A VOLTMETER MEASURE THE FUSED IS THE VOLTAGE NO REPAIR THE OPEN B CIRCUIT ABOVE 10 0 VOLTS FUSED B CIRCUIT FIG 1 YES USING A VOLTMETER REPAIR THE VTSS MEASURE THE VTSS IS THE VOLTAGE YES INDICATOR LAMP INDICATOR LAMP ABOVE 1 0 VOLT DRIVER CIRCUIT FOR A DRIVER CIRCUIT SHORT TO VOLTAGE IF FIG 1 OK REPLACE BCM NO KEY OFF DISCONNECT THE BCM C2 HARNESS...

Page 698: ...TEST 1A IDENTIFYING WINDSHIELD WIPER SYSTEM PROBLEMS Perform TEST SYMPTOM IDENTIFICATION 1A Before Proceeding W I N D S H I E L D W I P E R S Y S T E M 688 ...

Page 699: ...re or the customer s complaint and make sure the vehicle is experiencing the problem at this time Check for DTC s first if no codes are present proceed to the following symptoms listed below DIAGNOSTIC TROUBLE CODES PERFORM Wiper On Off Relay Control Circuit Open or Short Low TEST 2A Wiper Park Switch Failure Wipers Run Continuously TEST 3A Wiper On Off Relay Control Circuit Short High TEST 4A WIP...

Page 700: ...TEST 2A REPAIRING WIPER ON OFF RELAY CONTROL CIRCUIT OPEN OR SHORTED LOW Perform TEST 1A Before Proceeding FIG 1 FIG 2 W I N D S H I E L D W I P E R S Y S T E M 690 ...

Page 701: ...TITUTE WITH A TURN THE WIPERS ON OPERATE ON LOW ORIGINAL WIPER KNOWN GOOD RELAY LOW SPEED SPEED ON OFF RELAY FIG 1 NO KEY OFF USING A VOLTMETER IS THE VOLTAGE MEASURE BOTH FUSED ABOVE 10 0 VOLTS NO REPAIR OPEN FUSE REMOVE THE WIPER B CIRCUITS FOR BOTH OR OPEN FUSED B ON OFF RELAY MEASUREMENTS CIRCUIT S FIG 1 YES DISCONNECT BCM REINSTALL THE C3 HARNESS WIPER ON OFF CONNECTOR RELAY USING A JUMPER WI...

Page 702: ...TEST 3A REPAIRING WIPER PARK SWITCH FAILURE WIPERS RUN CONTINUOUSLY Perform TEST 1A Before Proceeding FIG 1 FIG 2 W I N D S H I E L D W I P E R S Y S T E M 692 ...

Page 703: ...N OHMMETER GAIN ACCESS TO THE BACKPROBE AND BODY CONTROL MEASURE BETWEEN GND MODULE C3 AND THE WIPER PARK CONNECTOR SW SENSE CKT FIG 1 TURN IGNITION ON DURING THE WIPER AND WIPER SWITCH OPERATION OBSERVE DOES THE YES REPLACE THE BODY TO THE LOW SPEED THE RESISTANCE OF RESISTANCE CONTROL MODULE POSITION THE PARK SWITCH PULSATE SENSE CKT NO CONNECT A JUMPER WIRE BETWEEN WIPER TURN IGNITION OFF PARK ...

Page 704: ...TEST 3A CONTINUED REPAIRING WIPER PARK SWITCH FAILURE WIPERS RUN CONTINUOUSLY FIG 1 W I N D S H I E L D W I P E R S Y S T E M 694 ...

Page 705: ... WIPERS ON DID WIPERS TURN ON YES REPLACE THE LOW SPEED FOR FIVE AND OFF ORIGINAL WIPER SECONDS THEN TURN ON OFF RELAY WIPERS OFF NO KEY OFF REMOVE THE WIPER DISCONNECT THE ON OFF RELAY BCM C3 HARNESS CONNECTOR FIG 1 USING AN OHMMETER REPAIR THE WIPER MEASURE BETWEEN IS THE RESISTANCE YES ON OFF RELAY GROUND AND WIPER BELOW 5 0 OHMS CONTROL CIRCUIT ON OFF RELAY CONTROL FOR A SHORT TO CKT FIG 1 GRO...

Page 706: ...TEST 4A REPAIRING WIPER ON OFF RELAY CONTROL CIRCUIT SHORTED HIGH Perform TEST 1A Before Proceeding FIG 1 W I N D S H I E L D W I P E R S Y S T E M 696 ...

Page 707: ...GNITION ON USING A VOLTMETER MEASURE THE WIPER IS THE VOLTAGE NO REPLACE THE WIPER TURN THE WIPER ON OFF RELAY ABOVE 1 O VOLT ON OFF RELAY SWITCH TO THE LOW CONTROL CKT SPEED POSITION FIG 1 YES KEY OFF KEY ON USING A REPAIR WIPER DISCONNECT THE VOLTMETER MEASURE IS THE VOLTAGE YES ON OFF RELAY BCM C3 HARNESS THE WIPER ON OFF ABOVE 1 O VOLT CONTROL CIRCUIT CONNECTOR RELAY CONTROL CKT SHORTED TO FIG...

Page 708: ...TEST 5A REPAIRING WIPERS NOT WORKING AT ALL Perform TEST 1A Before Proceeding FIG 1 W I N D S H I E L D W I P E R S Y S T E M 698 ...

Page 709: ...G 1 NO REMOVE THE WIPER USING A VOLTMETER REPAIR THE OPEN FUSE MEASURE THE B IS THE VOLTAGE NO B CIRCUIT FROM CKT AT PDC ABOVE 10 0 VOLTS BATTERY TO THE WIPER FUSE FIG 1 FIG 1 YES REINSTALL THE USING A VOLTMETER REPAIR THE OPEN WIPER FUSE MEASURE THE FUSED IS THE VOLTAGE NO FUSED B CIRCUIT DISCONNECT THE B CKT CAVITY D ABOVE 10 0 VOLTS BETWEEN THE FUSE ON OFF WIPER IN THE WIPER ON OFF AND THE WIPE...

Page 710: ...TEST 5A CONTINUED REPAIRING WIPERS NOT WORKING AT ALL FIG 1 W I N D S H I E L D W I P E R S Y S T E M 700 ...

Page 711: ...IRE IS STILL MEASURE THE COMMON IS THE VOLTAGE NO CIRCUIT BETWEEN CONNECTED BETWEEN CKT CAVITY B IN ABOVE 10 0 VOLTS THE WIPER ON OFF CAV B AND D OF THE HI LO RELAY AND WIPER HI LOW WIPER ON OFF RELAY CONNECTOR FIG 1 RELAYS YES DISCONNECT THE CONNECT A JUMPER DOES THE WIPER JUMPER WIRE IN THE WIRE BETWEEN WIPER MOTOR OPERATE IN NO PERFORM TEST WIPER ON OFF RELAY ON OFF RELAY CAV D THE LOW SPEED 5E...

Page 712: ...TEST 5B REPAIRING WIPERS NOT WORKING AT ALL Perform TEST 5A Before Proceeding FIG 1 FIG 2 W I N D S H I E L D W I P E R S Y S T E M 702 ...

Page 713: ... THE FUSE USING A VOLTMETER REPAIR THE OPEN DISCONNECT THE MEASURE THE FUSED IS THE VOLTAGE NO FUSED IGNITION MULTI FUNCTION IGNITION SWITCH ABOVE 10 0 VOLTS SWITCH OUTPUT SWITCH HARNESS OUTPUT CIRCUIT CIRCUIT CONNECTOR FIG 1 YES DISCONNECT THE TURN IGNITION OFF BCM C2 HARNESS CONNECTOR USING AN OHMMETER MULTI FUNCTION MEASURE THE WIPER SWITCH HARNESS IS THE RESISTANCE NO REPAIR THE OPEN SWITCH MU...

Page 714: ...TEST 5B CONTINUED REPAIRING WIPERS NOT WORKING AT ALL FIG 1 W I N D S H I E L D W I P E R S Y S T E M 704 ...

Page 715: ...NESS IS THE RESISTANCE YES IGNITION SWITCH GROUND AND THE FUSED CONNECTOR BELOW 5 0 OHMS OUTPUT CIRCUIT FOR IGNITION SWITCH A SHORT TO OUTPUT CKT AT THE FIG 1 GROUND NO REPLACE THE JB FUSE 5 USING AN OHMMETER MULTI FUNCTION REPAIR WIPER SWITCH MEASURE BETWEEN SWITCH HARNESS IS THE RESISTANCE YES MUX CKT BETWEEN THE GROUND AND THE WIPER CONNECTOR BELOW 5 0 OHMS SWITCH AND BODY SWITCH MUX SIGNAL CON...

Page 716: ...TEST 5C REPAIRING WIPERS NOT WORKING AT ALL Perform TEST 5A Before Proceeding FIG 1 W I N D S H I E L D W I P E R S Y S T E M 706 ...

Page 717: ...BETWEEN REPAIR WIPER RELAY GROUND AND CAVITY IS THE RESISTANCE YES COMMON CIRCUIT FOR B IN THE WIPER BELOW 5 0 OHMS A SHORT TO GROUND ON OFF RELAY CONN AND REPLACE THE FIG 1 WIPER FUSE NO DISCONNECT THE MEASURE BETWEEN REPAIR HI LO WIPER WIPER MOTOR GROUND AND CAVITY IS THE RESISTANCE YES RELAY LOW SPEED HARNESS E IN THE WIPER BELOW 5 0 OHMS OUTPUT CIRCUIT FOR A CONNECTOR HI LO RELAY CONN SHORT TO...

Page 718: ...TEST 5D REPAIRING WIPERS NOT WORKING AT ALL Perform TEST 5A Before Proceeding FIG 1 FIG 2 W I N D S H I E L D W I P E R S Y S T E M 708 ...

Page 719: ...ING A VOLTMETER MEASURE CAVITY A IS THE VOLTAGE NO REPAIR OPEN FUSED TURN IGNITION ON OF THE WIPER ABOVE 10 0 VOLTS B CIRCUIT ON OFF RELAY CONN FIG 1 YES REINSTALL THE WIPER ON OFF RELAY DISCONNECT THE BCM C3 HARNESS CONNECTOR FIG 1 CONNECT A JUMPER WIRE BETWEEN THE DOES THE WIPER YES REPLACE THE BODY WIPER ON OFF RELAY MOTOR OPERATE CONTROL MODULE CONTROL CKT GND FIG 2 NO REPLACE THE WIPER ON OFF...

Page 720: ...TEST 5E REPAIRING WIPERS NOT WORKING AT ALL Perform TEST 5A Before Proceeding FIG 1 FIG 2 W I N D S H I E L D W I P E R S Y S T E M 710 ...

Page 721: ... THE WIPER IS THE VOLTAGE NO WIPER HI LO RELAY STILL CONNECTED HI LO WIPER RLY LOW ABOVE 10 0 VOLTS LOW SPEED OUTPUT CKT BETWEEN THE TWO SPEED OUTPUT CKT BETWEEN HI LO RELAY RELAY CONNECTORS CAV E FIG 1 AND WIPER MOTOR YES NOTE ENSURE USING AN OHMMETER IGNITION ALL MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN LIGHTS AND GROUND AND THE BELOW 5 0 OHMS GROUND CIRCUIT ACCESSORIES ARE GROUND CI...

Page 722: ...TEST 6A REPAIRING WIPERS NOT WORKING IN THE HIGH SPEED MODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 W I N D S H I E L D W I P E R S Y S T E M 712 ...

Page 723: ...HE WIPER MEASURE CAV A OF IS THE VOLTAGE NO REPAIR THE OPEN SWITCH TO THE LOW THE WIPER HI LO ABOVE 10 0 VOLTS FUSED B SPEED SETTING RELAY CONNECTOR CIRCUIT FIG 1 YES CONNECT A JUMPER WITH THE JUMPER WIRE BETWEEN CAV WIRE CONNECTED YES CONTINUE TEST B AND D OF THE DOES THE WIPER 6A ON THE NEXT WIPER HI LO RELAY MOTOR OPERATE PAGE CONNECTOR FIG 1 NO DISCONNECT THE NOTE THE JUMPER WIPER MOTOR WIRE M...

Page 724: ...TEST 6A CONTINUED REPAIRING WIPERS NOT WORKING IN THE HIGH SPEED MODE FIG 1 FIG 2 FIG 3 W I N D S H I E L D W I P E R S Y S T E M 714 ...

Page 725: ...CM NO DISCONNECT THE BCM TURN IGNITION OFF C3 HARNESS CONNECTOR CONNECT A JUMPER USING AN OHMMETER WIRE BETWEEN THE MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN WIPER HI LO RELAY GROUND AND CAV C BELOW 5 0 OHMS WIPER HI LO RELAY CONTROL CKT AND OF THE WIPER HI LO CONTROL CIRCUIT GROUND FIG 2 RELAY CONN FIG 1 YES TURN IGNITION ON DISCONNECT THE BCM AND THE WIPER C2 HARNESS SWITCH TO THE HIG...

Page 726: ...TEST 7A REPAIRING WIPERS NOT WORKING IN THE LOW SPEED MODE Perform TEST 1A Before Proceeding FIG 1 FIG 2 W I N D S H I E L D W I P E R S Y S T E M 716 ...

Page 727: ...NITION ON BETWEEN THE WIPER AND WIPER SWITCH IS THE TEST LIGHT NO REPLACE THE BODY ON OFF RELAY TO LOW SPEED ON CONTROL MODULE CONNECTOR CAVITIES SETTING A AND C FIG 1 YES REMOVE THE WIPER REMOVE THE TEST HI LO RELAY LIGHT FIG 1 KEY OFF USING AN OHMMETER REPAIR THE WIPER TURN THE WIPER MEASURE BETWEEN IS THE RESISTANCE YES HI LO RELAY SWITCH TO THE LOW GROUND AND THE WIPER BELOW 100 0 OHMS CONTROL...

Page 728: ...TEST 7A CONTINUED REPAIRING WIPERS NOT WORKING IN THE LOW SPEED MODE FIG 1 W I N D S H I E L D W I P E R S Y S T E M 718 ...

Page 729: ...NECT THE CONTINUED FROM WIPER MOTOR THE PREVIOUS HARNESS PAGE CONNECTOR NOTE THE JUMPER USING A TEST REPAIR THE OPEN WIRE MUST STILL BE LIGHT PROBE THE IS THE TEST LIGHT NO WIPER RELAY LO CONNECTED FOR THE WIPER RELAY LO ILLUMINATED SPEED OUTPUT NEXT STEP SPEED OUTPUT CKT CIRCUIT FIG 1 YES REPLACE THE WIPER MOTOR W I N D S H I E L D W I P E R S Y S T E M 719 ...

Page 730: ...TEST 8A REPAIRING WIPERS NOT WORKING IN THE INTERMITTENT MODE Perform TEST 1A Before Proceeding W I N D S H I E L D W I P E R S Y S T E M 720 ...

Page 731: ... WIPER ARE THE WIPERS SWITCH THROUGH ALL INOPERATIVE IN ALL NO REPLACE THE SIX DIFFERENT INTERMITTENT MULTI FUNCTION INTERMITTENT WIPER POSITIONS SWITCH POSITIONS YES USING THE DRB DOES THE VOLTAGE SELECT SENSORS OF THE CHANGE YES REPLACE THE BODY AND MONITOR THE INTERMITTENT WIPER PROPORTIONABLY IN CONTROL MODULE INTERMITTENT WIPER POSITIONS EACH INTERMITTENT VOLTAGE AT EACH POSITION NO REPLACE T...

Page 732: ...TEST 9A REPAIRING WIPER WASH FUNCTION NOT WORKING PROPERLY Perform TEST 1A Before Proceeding W I N D S H I E L D W I P E R S Y S T E M 722 ...

Page 733: ... 0 TURN IGNITION ON MOMENTARILY PUSH DID THE WASHER NO CONTINUE TEST AND THEN RELEASE PUMP OPERATE 9A ON THE NEXT THE WASH BUTTON ON PAGE THE WIPER SWITCH YES DID THE WIPERS YES SYSTEM IS OPERATE OPERATING PROPERLY NO WITH THE DRB DOES THE WASHER ENTER BODY MONITOR THE WASHER SWITCH TOGGLE FROM YES REPLACE THE BODY COMPUTER THEN SWITCH INPUT WHILE RELEASED TO CONTROL MODULE INPUT OUTPUT PUSHING SW...

Page 734: ...TEST 9A CONTINUED REPAIRING WIPERS WASH FUNCTION NOT WORKING PROPERLY FIG 1 FIG 2 W I N D S H I E L D W I P E R S Y S T E M 724 ...

Page 735: ...ROUND CIRCUIT WASHER MOTOR GROUND CIRCUIT FIG 1 YES KEY ON USING A MONITOR THE VOLTMETER MEASURE VOLTMETER WHILE IS THE VOLTAGE YES REPLACE THE WASHER THE WASHER MOTOR PRESSING THE ABOVE 10 0 VOLTS MOTOR CONTROL CIRCUIT WASHER SWITCH FIG 1 NO CONNECT A JUMPER WIRE BETWEEN THE WASHER MOTOR CONTROL CKT AND GROUND FIG 1 DISCONNECT THE USING A OHMMETER MULTI FUNCTION MEASURE BETWEEN IS THE RESISTANCE ...

Page 736: ...TEST 10A REPAIRING WIPERS OPERATE IN HIGH SPEED ONLY Perform TEST 1A Before Proceeding FIG 1 FIG 2 W I N D S H I E L D W I P E R S Y S T E M 726 ...

Page 737: ...OPERATING PROPERLY OPERATING ON LOW WITH NO PROBLEM SPEED FOUND NO REMOVE THE WIPER TURN THE WIPER HI LO RELAY ARE THE WIPERS NO CONTINUE TEST SWITCH TO THE HI STILL OPERATING 10A ON THE NEXT SPEED SETTING PAGE FIG 1 YES KEY OFF KEY ON USING A REPAIR THE WIPER DISCONNECT THE VOLTMETER MEASURE IS THE VOLTAGE YES HI SPEED OUTPUT WIPER MOTOR THE WIPER HI SPEED ABOVE 1 0 VOLT CIRCUIT FOR A HARNESS OUT...

Page 738: ...TEST 10A CONTINUED REPAIRING WIPERS OPERATE IN HIGH SPEED ONLY FIG 1 FIG 2 W I N D S H I E L D W I P E R S Y S T E M 728 ...

Page 739: ...OD IN ALL SPEEDS OPERATE PROPERLY ORIGINAL WIPER RELAY HI LO RELAY FIG 1 NO REMOVE THE WIPER WITH AN OHMMETER REPAIR THE WIPER HI LO RELAY MEASURE BETWEEN IS THE RESISTANCE YES HI LO RELAY CONTROL GROUND AND THE WIPER BELOW 5 0 OHMS CIRCUIT FOR A SHORT HI LO RELAY CONN TO GROUND IF OK FIG 1 CAVITY C FIG 1 REPLACE THE BCM NO DISCONNECT THE CONNECT A JUMPER WIPER MOTOR WIRE BETWEEN GROUND HARNESS AN...

Page 740: ...TEST 11A REPAIRING HEADLAMP WASHERS NOT WORKING PROPERLY Perform TEST 1A Before Proceeding FIG 1 FIG 2 W I N D S H I E L D W I P E R S Y S T E M 730 ...

Page 741: ...LOW SPEED BUTTON ON THE WASHERS OPERATE 1A SETTING WIPER SWITCH PROPERLY YES SYSTEM IS DID THE HEADLAMP YES OPERATEING WASHERS TURN ON PROPERLY WITH NO PROBLEM FOUND NO SUBSITUTE THE WITH THE HEADLAMPS HEADLAMP WASHER ON PUSH THE WASH DID THE HEADLAMP YES REPLACE THE RELAY WITH A KNOWN BUTTON ON THE WASHERS TURN ON ORIGINAL HEADLAMP GOOD RELAY WIPER SWITCH WASHER RELAY FIG 1 NO DISCONNECT THE WITH...

Page 742: ...TEST 11A CONTINUED REPAIRING HEADLAMP WASHERS NOT WORKING PROPERLY FIG 1 FIG 2 FIG 3 W I N D S H I E L D W I P E R S Y S T E M 732 ...

Page 743: ... VOLTAGE NO REPAIR THE OPEN B CIRCUITS ABOVE 10 0 VOLTS FUSED B ON BOTH CIRCUITS CIRCUITS FIG 2 YES CONNECT A JUMPER WITH AN OHMMETER REPAIR THE OPEN WIRE BETWEEN GROUND MEASURE BETWEEN GND IS THE RESISTANCE NO HEADLAMP WASHER AND CAVITY 4 OF THE AND THE HEADLAMP BELOW 5 0 OHMS MOTOR CONTROL HEADLAMP WASHER WASHER MOTOR CONTROL CIRCUIT RELAY CONN FIG 2 CKT FIG 1 YES CONNECT A JUMPER WIRE BETWEEN G...

Page 744: ...t software available 4 Use the DRB to erase the stored codes 5 Turn the ignition off and wait 15 seconds before turning the ignition on 6 Wait one minute and read the active codes 7 Does the DRB display any active codes YES Perform Airbag Test 1A NO Perform step number 8 8 With the DRB read the stored codes 9 Does the DRB display any stored codes YES Perform Airbag Test 1A NO System operating prop...

Page 745: ... using the DRB recalibrate the HVAC doors 4 Ensure that the ignition is on and with the DRB erase all diagnostic trouble codes 5 Turn ignition off and wait 5 seconds 6 Turn ignition on and fully operate the system that was malfunctioning If the system is operating properly continue to step 7 If the system is not operating properly repeat Symptom ID TEST 1A 7 With the DRB read body control module t...

Page 746: ...ors trunk and hood are closed Open driver s door Remove the ignition key but keep it in hand Lock the doors with the power door lock switch Close the driver s door If the instrument panel VTSS indicator lamp flashed the system is operational and verified If not perform VTSS TEST 1A V E R I F I C A T I O N T E S T 736 ...

Page 747: ...n is on and using the DRB erase the memory system trouble codes 3 Operate the power seat in all positions 4 Reset the seat and mirrors in both memory positions 5 Operate both seat heaters low and high 6 Using the DRB read DTC s No DTC s repair complete DTC s present perform Memory System TEST 1A V E R I F I C A T I O N T E S T 737 ...

Page 748: ...TEST VER 4A VERIFICATION TEST MEMORY SYSTEM NOTES V E R I F I C A T I O N T E S T 738 ...

Page 749: ...with a Sentry Key Immobilizer Module SKIM Secret Key data must be updated to enable starting Refer to the Powertrain Diagnostic Procedures Manual for additional information For Airbag system ACTION 1 Enter correct VIN and Mileage in PCM 2 Erase codes in Airbag module 9 0 SPECIFICATIONS 9 1 Setting the Compass The compass in the OTIS module is self calibrating and requires no manual adjustment If c...

Page 750: ...button to select the proper variance zone number 1 15 Each variance zone represents a 4 degree shift in magnetic variation from central zone 8 which has no variation from true north 4 After selecting the proper variance zone number press the RESET switch The new variance zone is then set and the OTIS will resume normal operation If further problems with the compass are encountered see the appropri...

Page 751: ...10 0 SCHEMATIC DIAGRAMS 10 1 Airbag System G E N E R A L I N F O R M A T I O N 741 ...

Page 752: ...10 2 Body Control Module G E N E R A L I N F O R M A T I O N 742 ...

Page 753: ...10 3 Audio Systems Midline Premium G E N E R A L I N F O R M A T I O N 743 ...

Page 754: ...10 3 Audio Systems Premium 2 10 4 Chime Warning System G E N E R A L I N F O R M A T I O N 744 ...

Page 755: ...10 5 Climate Control Automatic Temperature Control G E N E R A L I N F O R M A T I O N 745 ...

Page 756: ...10 5 Climate Control Manual Temperature Control 10 6 Door Ajar G E N E R A L I N F O R M A T I O N 746 ...

Page 757: ...10 7 Exterior Lighting G E N E R A L I N F O R M A T I O N 747 ...

Page 758: ...10 8 Instrument Cluster 10 9 Interior Lighting G E N E R A L I N F O R M A T I O N 748 ...

Page 759: ...10 9 Interior Lighting G E N E R A L I N F O R M A T I O N 749 ...

Page 760: ...10 10 Memory System G E N E R A L I N F O R M A T I O N 750 ...

Page 761: ...10 11 OTIS G E N E R A L I N F O R M A T I O N 751 ...

Page 762: ...10 12 Power Door Locks RKE G E N E R A L I N F O R M A T I O N 752 ...

Page 763: ...10 13 Vehicle Communications 10 14 Vehicle Theft Security System G E N E R A L I N F O R M A T I O N 753 ...

Page 764: ...10 15 Wiper System G E N E R A L I N F O R M A T I O N 754 ...

Page 765: ...gger HVAC heater ventilation air conditioning MIC mechanical instrument cluster MTC manual temperature control OTIS overhead travel information system ODO odometer PAB passenger airbag PCI Programmable Communication Interface vehicle communication bus PCM powertrain control module PDC power distribution center PWM pulse width modulated RKE remote keyless entry SKIM sentry key immobilizer module SK...

Page 766: ...756 ...

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Summary of Contents for 300M 1999

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Chrysler 300M 1999, Manual, Page: 273 / 766

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Summary of Contents for 300M 1999

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