Circuit/System Testing
WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, radio OFF, radio B+ fuse removed, disconnect the X3 connector at the T3 audio amplifier.
- Reinstall the radio B+ fuse. Ignition ON, radio ON, verify that DTC B1265 is NOT set as current.
- If DTC B1265 is set as current, test the entertainment remote enable circuit for a short to ground. If the circuit tests normal replace the A11 radio.
- Verify that a test lamp illuminates between the entertainment remote enable circuit Audio Amplifier X3 terminal 13 and ground.
- If the test lamp does not illuminate, test the entertainment remote enable circuit for a short to ground or an open/high resistance. If the circuit tests normal replace the Radio.
- If all circuits test normal, replace the T3 audio amplifier.