Symptom:
*FRONT A/C - HEATER CONTROL ILLUMINATION INOPERATIVE -
MTC
POSSIBLE CAUSES
CHECK FOR HVAC DTCS
CHECK FOR BCM DTCS
A/C - HEATER CONTROL MODULE
PANEL LAMPS DRIVER CIRCUIT OPEN
BODY CONTROL MODULE - PANEL LAMPS DRIVER OPEN
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t
, read HVAC DTCs.
Does the DRBIII
t
display any HVAC DTCs?
All
Yes
→
Return to the symptom list and choose the symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
No
→
Go To
2
2
Turn the ignition on.
With the DRBIII
t
, read the BCM DTCs.
Does DRBIII
t
display Headlamp Switch: Mismatch; STG; Open; or Panel Dim
Output Short?
All
Yes
→
Refer to symptoms Headlamp Switch Mismatch, Headlamp
Switch Shorted To Ground, and Headlamp Switch Open in the
Exterior Lighting catagory. Refer to symptom Panel Dimming
Output Short in the Instrument Cluster catagory.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Go To
3
3
Turn the ignition off.
Rotate the Panel Lamps Dimmer switch to the off position.
Disconnect the A/C - Heater Control C1 harness connector.
Turn the Headlamp switch on.
Measure the voltage of the Panel Lamps Driver circuit while rotating the Panel
Lamps Dimmer switch from the off position to the full brightness position.
Does the voltage change from approximately 2.5 volts to 11.5 volts?
All
Yes
→
Replace the A/C - Heater Control Module in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Go To
4
566
HEATING & A/C
Содержание Caravan 2003
Страница 24: ...NOTES xxiv ...
Страница 64: ...NOTES 40 ...
Страница 65: ...7 0 DIAGNOSTIC INFORMATION AND PROCEDURES 41 ...
Страница 1033: ...8 0 COMPONENT LOCATIONS 8 1 AIRBAG SYSTEM C O M P O N E N T L O C A T I O N S 1009 COMPONENT LOCATIONS ...
Страница 1035: ...8 5 HEATING A C 8 5 1 ACTUATORS FRONT LHD 8 5 2 ACTUATOR FRONT LHD C O M P O N E N T L O C A T I O N S 1011 COMPONENT LOCATIONS ...
Страница 1036: ...8 5 3 ACTUATORS FRONT RHD C O M P O N E N T L O C A T I O N S 1012 COMPONENT LOCATIONS 8 5 HEATING A C Continued ...
Страница 1037: ...8 5 4 ACTUATOR FRONT RHD 8 5 5 EVAPORATOR TEMPERATURE SENSOR LHD C O M P O N E N T L O C A T I O N S 1013 COMPONENT LOCATIONS ...
Страница 1039: ...8 5 8 ACTUATORS REAR 8 5 9 REAR A C HEATER UNIT CONNECTOR C O M P O N E N T L O C A T I O N S 1015 COMPONENT LOCATIONS ...
Страница 1043: ...8 9 POWER FOLDING MIRRORS 8 10 POWER LIFTGATE SYSTEM 8 10 1 MODULE C O M P O N E N T L O C A T I O N S 1019 COMPONENT LOCATIONS ...
Страница 1080: ...C O N N E C T O R P I N O U T S 1056 CONNECTOR PINOUTS ...
Страница 1117: ...10 0 SCHEMATIC DIAGRAMS 10 1 AIRBAG SYSTEM S C H E M A T I C D I A G R A M S 1093 SCHEMATIC DIAGRAMS ...
Страница 1118: ...10 2 AUDIO SYSTEM 10 2 1 PREMIUM AUDIO SYSTEM S C H E M A T I C D I A G R A M S 1094 SCHEMATIC DIAGRAMS ...
Страница 1119: ...10 2 2 BASE AUDIO SYSTEM S C H E M A T I C D I A G R A M S 1095 SCHEMATIC DIAGRAMS ...
Страница 1123: ...10 3 3 FRONT ATC RHD S C H E M A T I C D I A G R A M S 1099 SCHEMATIC DIAGRAMS ...
Страница 1125: ...10 4 COMMUNICATION S C H E M A T I C D I A G R A M S 1101 SCHEMATIC DIAGRAMS ...
Страница 1127: ...10 4 3 ECM CABIN HEATER ASSIST COMMUNICATION DIESEL ONLY S C H E M A T I C D I A G R A M S 1103 SCHEMATIC DIAGRAMS ...
Страница 1128: ...10 5 DOOR AJAR SYSTEM 10 5 1 DOOR AJAR SYSTEM WITH POWER SLIDING DOORS S C H E M A T I C D I A G R A M S 1104 SCHEMATIC DIAGRAMS ...
Страница 1129: ...10 5 2 DOOR AJAR WITHOUT POWER SLIDING DOORS S C H E M A T I C D I A G R A M S 1105 SCHEMATIC DIAGRAMS ...
Страница 1130: ...10 6 EXTERIOR LIGHTING S C H E M A T I C D I A G R A M S 1106 SCHEMATIC DIAGRAMS ...
Страница 1131: ...10 7 IGNITION POWER ACCESSORY 10 7 1 HORN SYSTEM S C H E M A T I C D I A G R A M S 1107 SCHEMATIC DIAGRAMS ...
Страница 1132: ...10 7 2 IGNITION SWITCH S C H E M A T I C D I A G R A M S 1108 SCHEMATIC DIAGRAMS 10 7 IGNITION POWER ACCESSORY Continued ...
Страница 1133: ...10 7 3 INTEGRATED POWER MODULE BODY CONTROL MODULE POWER AND GROUNDS S C H E M A T I C D I A G R A M S 1109 SCHEMATIC DIAGRAMS ...
Страница 1134: ...10 8 INSTRUMENT CLUSTER 10 8 1 INSTRUMENT CLUSTER BASE S C H E M A T I C D I A G R A M S 1110 SCHEMATIC DIAGRAMS ...
Страница 1135: ...10 8 2 INSTRUMENT CLUSTER MESSAGE CENTER S C H E M A T I C D I A G R A M S 1111 SCHEMATIC DIAGRAMS ...
Страница 1136: ...10 9 INTERIOR LIGHTING S C H E M A T I C D I A G R A M S 1112 SCHEMATIC DIAGRAMS ...
Страница 1141: ...10 10 5 THREE ZONE REAR MANUAL TEMPERATURE CONTROL SYSTEM S C H E M A T I C D I A G R A M S 1117 SCHEMATIC DIAGRAMS ...
Страница 1142: ...10 10 6 FRONT BLOWER MOTOR S C H E M A T I C D I A G R A M S 1118 SCHEMATIC DIAGRAMS 10 10 MANUAL TEMPERATURE CONTROLS Continued ...
Страница 1143: ...10 10 7 REAR BLOWER MOTOR S C H E M A T I C D I A G R A M S 1119 SCHEMATIC DIAGRAMS ...
Страница 1145: ...10 11 MEMORY SYSTEM S C H E M A T I C D I A G R A M S 1121 SCHEMATIC DIAGRAMS ...
Страница 1146: ...10 12 OVERHEAD CONSOLE S C H E M A T I C D I A G R A M S 1122 SCHEMATIC DIAGRAMS ...
Страница 1147: ...10 13 POWER DOOR LOCKS RKE S C H E M A T I C D I A G R A M S 1123 SCHEMATIC DIAGRAMS ...
Страница 1148: ...10 14 POWER FOLDING MIRROR LHD EXPORT ONLY S C H E M A T I C D I A G R A M S 1124 SCHEMATIC DIAGRAMS ...
Страница 1149: ...10 15 POWER FOLDING MIRROR RHD EXPORT ONLY S C H E M A T I C D I A G R A M S 1125 SCHEMATIC DIAGRAMS ...
Страница 1150: ...10 16 POWER LIFTGATE SYSTEM S C H E M A T I C D I A G R A M S 1126 SCHEMATIC DIAGRAMS ...
Страница 1151: ...10 17 POWER SLIDING DOOR SYSTEM 10 17 1 LEFT POWER SLIDING DOOR S C H E M A T I C D I A G R A M S 1127 SCHEMATIC DIAGRAMS ...
Страница 1153: ...10 18 POWER SLIDING DOOR AND LIFTGATE SWITCHES S C H E M A T I C D I A G R A M S 1129 SCHEMATIC DIAGRAMS ...
Страница 1154: ...10 19 REAR DEFOG HEATED MIRROR FRONT WIPER DE ICE S C H E M A T I C D I A G R A M S 1130 SCHEMATIC DIAGRAMS ...
Страница 1155: ...10 20 VEHICLE THEFT SECURITY SYSTEM S C H E M A T I C D I A G R A M S 1131 SCHEMATIC DIAGRAMS ...
Страница 1157: ...10 21 WIPERS FRONT AND REAR S C H E M A T I C D I A G R A M S 1133 SCHEMATIC DIAGRAMS ...
Страница 1158: ...NOTES 1134 ...
Страница 1159: ...11 0 CHARTS AND GRAPHS 11 1 KDB LAB SCOPE PATTERN C H A R T S A N D G R A P H S 1135 CHARTS AND GRAPHS ...
Страница 1160: ...11 2 PCI BUS LAB SCOPE PATTERN C H A R T S A N D G R A P H S 1136 CHARTS AND GRAPHS ...