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Home >> Jeep >> 2005 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 491 (Body Diagnostic Procedures) >> Diagnostic Information And Procedures >> Interior Lighting >> Symptom: *COURTESY LAMPS INOPERATIVE-ALL LAMPS >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE - COURTESY LAMPS INOPERATIVE-ALL LAMPS

TEST ACTION APPLICABILITY
1 Gain access to the junction block C24 Harness connector.
While back probing, measure the voltage of the Courtesy Lamp Driver circuit.
Is the voltage above 10.0 volts?
Yes --> Go To 2
No --> Replace the Junction Block.
Perform BODY VERIFICATION TEST - VER 1  .		 All
2 Using a jumper wire, test the Courtesy Lamps Driver circuit to the Junction Block C24 connector and ground.
Do the courtesy lamps come on?
Yes --> Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1  .
No --> Repair the Courtesy Lamp Driver circuit for an open condition.
Perform BODY VERIFICATION TEST - VER 1  .		 All
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