Symptom:
BACKLIGHT DIMMING RX FAILURE (ACTIVE)
When Monitored and Set Condition:
BACKLIGHT DIMMING RX FAILURE (ACTIVE)
When Monitored:
With the ignition on.
Set Condition:
If the A/C - Heater Control Module does not receive the dimming function
message from the Instrument Cluster for more than 5 seconds, then the A/C - Heater
Control Module backlighting will default to full brightness and the DTC will set.
POSSIBLE CAUSES
CHECK FOR INSTRUMENT CLUSTER (MIC) DTCS
DIMMING MESSAGE NOT SEEN AT RATE EXPECTED
A/C - HEATER CONTROL MODULE
MIC - NO DIM MESSAGE TO A/C - HEATER CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t
in Body, Electro/Mech Cluster (MIC), read DTCs.
Does the DRBIII
t
display any DTCs?
All
Yes
→
Refer to the Instrument Cluster category for the related symp-
tom(s).
Perform BODY VERIFICATION TEST - VER 1.
No
→
Go To
2
2
Turn the ignition on.
Turn the Headlamp switch on.
Turn the Blower control to low speed.
If equipped, press the A/C switch on.
If equipped, press the EBL switch on.
If equipped, press the Max switch on.
Rotate the Cargo Dome switch in both directions while watching the A/C (if
equipped), EBL (if equipped), and MAX (if equipped) status indicators on the
A/C-Heater Control Module.
Do the status indicators dim and brighten respectively while rotating the switch?
All
Yes
→
No problem found at this time.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Go To
3
374
HEATING & A/C
Содержание Ram 2004
Страница 14: ...NOTES xiv...
Страница 35: ...7 0 DIAGNOSTIC INFORMATION AND PROCEDURES 21...
Страница 570: ...NOTES 556...
Страница 571: ...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 557 COMPONENT LOCATIONS...
Страница 572: ...8 2 AUDIO 8 2 1 AMPLIFIER 8 3 HEATING A C C O M P O N E N T L O C A T I O N S 558 COMPONENT LOCATIONS...
Страница 574: ...NOTES 560...
Страница 596: ...C O N N E C T O R P I N O U T S 582 CONNECTOR PINOUTS...
Страница 600: ...C O N N E C T O R P I N O U T S 586 CONNECTOR PINOUTS...
Страница 602: ...C O N N E C T O R P I N O U T S 588 CONNECTOR PINOUTS...
Страница 603: ...C O N N E C T O R P I N O U T S 589 CONNECTOR PINOUTS...
Страница 613: ...C O N N E C T O R P I N O U T S 599 CONNECTOR PINOUTS...
Страница 619: ...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 605 SCHEMATIC DIAGRAMS...
Страница 620: ...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 606 SCHEMATIC DIAGRAMS...
Страница 621: ...10 2 2 BASE AUDIO SYSTEM S C H E M A T I C D I A G R A M S 607 SCHEMATIC DIAGRAMS...
Страница 622: ...10 2 3 REMOTE RADIO CONTROLS S C H E M A T I C D I A G R A M S 608 SCHEMATIC DIAGRAMS 10 2 AUDIO SYSTEM Continued...
Страница 623: ...10 3 COMMUNICATION 10 3 1 PCI BUS COMMUNICATION S C H E M A T I C D I A G R A M S 609 SCHEMATIC DIAGRAMS...
Страница 625: ...10 3 4 ECM COMMUNICATION DIESEL S C H E M A T I C D I A G R A M S 611 SCHEMATIC DIAGRAMS...
Страница 626: ...10 4 DOOR AJAR SYSTEM S C H E M A T I C D I A G R A M S 612 SCHEMATIC DIAGRAMS...
Страница 627: ...10 5 ELECTRICALLY HEATED SYSTEMS 10 5 1 HEATED MIRROR SYSTEM S C H E M A T I C D I A G R A M S 613 SCHEMATIC DIAGRAMS...
Страница 629: ...10 6 EXTERIOR LIGHTS S C H E M A T I C D I A G R A M S 615 SCHEMATIC DIAGRAMS...
Страница 630: ...10 7 HEATING A C SYSTEM S C H E M A T I C D I A G R A M S 616 SCHEMATIC DIAGRAMS...
Страница 631: ...10 8 IGNITION POWER ACCESSORY 10 8 1 HORN SYSTEM S C H E M A T I C D I A G R A M S 617 SCHEMATIC DIAGRAMS...
Страница 632: ...10 9 INSTRUMENT CLUSTER S C H E M A T I C D I A G R A M S 618 SCHEMATIC DIAGRAMS...
Страница 633: ...10 10 OVERHEAD CONSOLE S C H E M A T I C D I A G R A M S 619 SCHEMATIC DIAGRAMS...
Страница 634: ...10 11 POWER DOOR LOCKS S C H E M A T I C D I A G R A M S 620 SCHEMATIC DIAGRAMS...
Страница 635: ...10 12 TELECOMMUNICATIONS HANDS FREE SYSTEM S C H E M A T I C D I A G R A M S 621 SCHEMATIC DIAGRAMS...
Страница 636: ...10 13 VEHICLE THEFT SECURITY SYSTEM S C H E M A T I C D I A G R A M S 622 SCHEMATIC DIAGRAMS...
Страница 637: ...10 14 WIPERS S C H E M A T I C D I A G R A M S 623 SCHEMATIC DIAGRAMS...
Страница 638: ...NOTES 624...
Страница 639: ...11 0 CHARTS AND GRAPHS 11 1 DIAGNOSTIC TROUBLE CODE C H A R T S A N D G R A P H S 625 CHARTS AND GRAPHS...
Страница 640: ...NOTES 626...
Страница 642: ...Dealer Technical Operations 800 Chrysler Drive CIMS 486 02 76 Auburn Hills MI 48326 2757...