All Gauges Inoperative - Dodge Ram 2004 Service Manual

Symptom:

*ALL GAUGES INOPERATIVE

NO RESPONSE - PCI BUS
PCI BUS - POWERTRAIN CONTROL MODULE
PCI BUS - INSTRUMENT CLUSTER
FUSED IGNITION SWITCH OUTPUT CIRCUIT (UNLOCK/RUN) SHORT TO GROUND
INSTRUMENT CLUSTER GROUND CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT SHORT TO GROUND
FUSED IGNITION SWITCH OUTPUT (UNLOCK/RUN) CIRCUIT OPEN
INSTRUMENT CLUSTER
TEST
1 NOTE: Diagnose and repair any MIC, PCM (ECM if diesel equipped), or
Communication DTCs before proceeding with this test.
Turn the ignition on.
With the DRBIII , select System Monitors, then J1850 Module Scan.
Does the DRBIII display MIC PRESENT on the BUS?
Yes → Go To 2
No
2 Turn the ignition on.
With the DRBIII , select Body, MIC, SYSTEM TESTS, PCM Monitor.
Does the DRBIII display PCM INACTIVE on the BUS?
Yes → Refer to the COMMUNICATION category and perform the ap-
No
3 Turn the ignition on.
With the DRBIII , select Body, MIC, MODULE DISPLAY.
Does the DRBIII display NO RESPONSE from MIC?
Yes → Refer to the COMMUNICATION category and perform the ap-
No
POSSIBLE CAUSES
ACTION
→ Refer to the COMMUNICATION category and perform the appro-
priate symptom.
Perform BODY VERIFICATION TEST - VER 1.
propriate symptom.
Perform BODY VERIFICATION TEST - VER 1.
→ Go To 3
propriate symptom.
Perform BODY VERIFICATION TEST - VER 1.
→ Go To 4
INSTRUMENT CLUSTER
441
APPLICABILITY
All
All
All