PRNDL/Transfer Case Illumination Lamps Inoperative

Possible Causes are:

• PRNDL OPEN GROUND CONNECTION
• PANEL LAMPS DRIVER CIRCUIT OPEN
• PRNDL ILLUMINATION
• BODY CONTROL MODULE

1. Disconnect the PRNDL/Transfer Case Illumination connector. Connect a test light between the ground circuit and the Panel Lamps Driver circuit in the PRNDL/Transfer Case Illumination connector. Turn on the panel lamps and observe the test light. Did the test light illuminate? If yes, replace the PRNDL/Transfer Case Illumination assembly. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS. If no, go to next step.
2. Turn ignition off. Disconnect the PRNDL/Transfer Case Illumination connector. Measure the resistance of the Ground circuit in the PRNDL connector. Is the resistance less than 5 ohms? If yes, go to next step. If no, repair the open Ground circuit. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS.
3. Turn ignition off. Disconnect the PRNDL/Transfer Case Illumination connector. Disconnect the BCM C1 connector. Measure the resistance of the Panel Lamps Driver circuit between the PRNDL connector and the BCM C1 connector. Is the resistance less than 5 ohms? If yes, go to next step. If no, repair the open in the Panel Lamps Driver Circuit. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS.
4. If there are no possible causes remaining, replace the Body Control Module. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS.