Circuit/System Testing
WARNING: This page is about a different car, the 2011 GMC Acadia, 2011 Chevrolet Traverse, and 2011 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the X1 harness connector at the appropriate outside rearview mirror.
- Connect a test lamp between control circuit terminal 1 and control circuit terminal 2.
- Command the Mirror Fold to Retract and Extend with a scan tool. The test lamp should turn ON when commanding the retract and extend states.
- If the test lamp remains OFF during either of the commands, test for a short to voltage, short to ground, or an open/high resistance on either control circuit. If the circuits test normal, replace the door module.
- If all circuits test normal, test or replace the outside rearview mirror.