Interior Lighting; Mic-Cargo Lamp Output Circuit Shorted Or Open - Dodge Ram 2004 Service Manual

Symptom:

MIC-CARGO LAMP OUTPUT CIRCUIT SHORTED OR OPEN

INTERMITTENT CONDITION
HEADLAMP SWITCH
CARGO LAMP OUTPUT CIRCUIT SHORT TO GROUND
INSTRUMENT CLUSTER
TEST
1 Turn the ignition on.
With the DRBIII , clear all MIC DTC's.
Turn the Cargo Lamps on.
With the DRBIII , read the DTC information.
Does the DRBIII read: Cargo Lamp Output Circuit Short/Open?
Yes → Go To 2
→ The condition that caused the symptom is currently not present.
No
2 Disconnect the Headlamp Switch connector.
Turn the ignition on.
Does the DRBIII display Headlamp Switch 5.0 volts?
Yes → Go To 3
→ Replace the Headlamp Switch.
No
3 Turn the ignition off.
Disconnect the Headlamp Switch connector.
Disconnect the Instrument Cluster C1 connector.
Measure the resistance of the Cargo Lamp Output circuit to ground.
Is the resistance below 5.0 ohms?
Yes → Repair the Cargo Lamp Output circuit..
→ Replace the Instrument Cluster.
No
POSSIBLE CAUSES
ACTION
Inspect the related wiring for a possible intermittent condition.
Look for any chafed, pierced, pinched, or partially broken wires.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.

INTERIOR LIGHTING

457
APPLICABILITY
All
All
All