Interior Lighting; Courtesy Lamp Output Short - Dodge ZB 2005 Service Manual

Symptom:

COURTESY LAMP OUTPUT SHORT

When Monitored and Set Condition:
COURTESY LAMP OUTPUT SHORT
When Monitored: When output is ON.
Set Condition: When output is ON and device current limits.
INTERMITTENT CONDITION
COURTESY LAMP DRIVER CIRCUIT SHORT
BODY CONTROL MODULE
REARVIEW MIRROR
TEST
1 Turn the ignition on.
With the DRBIII , clear all BCM DTC's.
Turn the courtesy lamps on.
With the DRBIII , read the DTC information.
Does the DRBIII read: Courtesy Lamp Output Short?
Yes → Go To 2
→ The condition that caused the symptom is currently not present.
No
2 Turn the ignition off.
Disconnect the Rearview Mirror harness connector.
Disconnect the Body Control Module C3 harness connector.
Measure the resistance of the Courtesy Lamp Driver circuit.
Is the resistance below 5.0 ohms?
Yes → Repair the Courtesy Lamp Driver circuit for a short condition.
→ Go To 3
No
3 Turn the ignition off.
Disconnect the Body Control Module C3 harness connector.
Measure the resistance of the Courtesy Lamp Driver circuit.
Is the resistance below 5.0 ohms?
Yes → Replace the Rearview Mirror assembly.
→ Replace the Body Control Module.
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

287
APPLICABILITY
All
All
All