Interior Lighting; Courtesy Lamps Inoperative - All Lamps - Jeep Wrangler TJ 2006 Diagnostic Manual

Symptom:

*COURTESY LAMPS INOPERATIVE - ALL LAMPS

FUSED B+ CIRCUIT OPEN
INSTRUMENT CLUSTER - COURTESY LAMP OPEN
COURTESY LAMP FEED CIRCUIT OPEN
INTERMITTENT CONDITION
TEST
1 Remove the dome lamp lens.
Remove and ensure the bulb is good.
Using a 12-volt test light connected to ground, check the Fused B+ circuit.
Does the test light illuminate brightly?
Yes → Go To 2
No
2 Disconnect the Instrument Cluster.
Connect a jumper wire between the Courtesy Lamp Feed Circuit and ground.
Observe the Dome Lamp.
Does the test light illuminate brightly?
Yes → Replace the Instrument Cluster.
No
3 Remove the dome lamp bulb.
Disconnect the Instrument Cluster.
Connect a jumper wire between the Courtesy Lamp Feed Circuit in the Instrument
Cluster connector and ground.
Measure resistance of the Courtesy Lamp Feed Circuit from the Dome Lamp to the
Instrument Cluster connector.
Is the resistance below 5.0 ohms?
Yes → Repair the Courtesy Lamp Feed Circuit for an open condition.
No
POSSIBLE CAUSES
ACTION
→ Repair the Fused B+ Circuit for an open condition.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
→ Go To 3
Perform BODY VERIFICATION TEST - VER 1.
→ The condition that caused this symptom is currently not present.
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.

INTERIOR LIGHTING

171
APPLICABILITY
All
All
All