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 harness connector at the rear video display.
- Ignition ON, test for 100-300 Hz at the control circuit terminal 9.
- If not within the specified range, test the control circuit for a short to voltage, short to ground, or an open/high resistance. If the circuit tests normal, replace the radio.
- If all circuits test normal, replace the rear video display.