Circuit/System Testing
WARNING: This page is about a different car, the 2009 Saturn Outlook, 2009 GMC Acadia, 2009 Chevrolet Traverse, and 2009 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the harness connector at the cargo lamp.
- Connect a test lamp between the courtesy lamp high control circuit terminal C and ground.
- If the test lamp illuminates, locate and repair a short to voltage in the courtesy lamp high control circuit.
- If the test lamp does not illuminate, locate and repair a short to ground in the courtesy lamp high control circuit.
- If all circuits test normal, replace the BCM.