Symptom:
*CMTC OR EVIC INOPERATIVE
POSSIBLE CAUSES
FUSED B(+) CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
GROUND CIRCUIT OPEN
COMPASS/MINI-TRIP COMPUTER
TEST
ACTION
APPLICABILITY
1
NOTE: Diagnose and repair any MIC, FCM, PCM, or Communication DTCs
before proceeding.
Turn the ignition off.
Disconnect the Overhead Console harness connector.
Measure the voltage between the Fused B+ circuit and ground.
Is the voltage above 10.5 volts?
All
Yes
→
Go To
2
No
→
Repair the Fused B+ circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the Overhead Console harness connector.
Turn the ignition on.
Measure the voltage between the Fused Ignition Switch Output circuit and ground.
Is the voltage below 10.5 volts?
All
Yes
→
Repair the Fused Ignition Switch Output circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Go To
3
3
Turn the ignition off.
Disconnect the Overhead Console harness connector.
Measure the resistance between ground and the CMTC ground circuit.
Is the resistance above 5.0 ohms?
All
Yes
→
Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace and configure the CMTC in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
312
COMPASS/MINI-TRIP COMPUTER
Summary of Contents for Ram 2004
Page 14: ...NOTES xiv...
Page 35: ...7 0 DIAGNOSTIC INFORMATION AND PROCEDURES 21...
Page 570: ...NOTES 556...
Page 574: ...NOTES 560...
Page 596: ...C O N N E C T O R P I N O U T S 582 CONNECTOR PINOUTS...
Page 600: ...C O N N E C T O R P I N O U T S 586 CONNECTOR PINOUTS...
Page 602: ...C O N N E C T O R P I N O U T S 588 CONNECTOR PINOUTS...
Page 603: ...C O N N E C T O R P I N O U T S 589 CONNECTOR PINOUTS...
Page 613: ...C O N N E C T O R P I N O U T S 599 CONNECTOR PINOUTS...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 637: ...10 14 WIPERS S C H E M A T I C D I A G R A M S 623 SCHEMATIC DIAGRAMS...
Page 638: ...NOTES 624...
Page 640: ...NOTES 626...
Page 642: ...Dealer Technical Operations 800 Chrysler Drive CIMS 486 02 76 Auburn Hills MI 48326 2757...