Dodge Ram 2004 - Cmtc or Evic Inoperative

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