Circuit/System Testing
WARNING: This page is about a different car, the 2011 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, radio OFF, radio B+ fuse removed, disconnect all of the connectors listed below:
- T3 Audio Amplifier X2
- P17 Information Display Module X1 (display screen)
- 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 radio.
- Verify that a test lamp illuminates between the entertainment remote enable circuit terminals listed below and ground:
- T3 Audio Amplifier X2 terminal 14
- P17 Information Display Module X1 terminal 6
- 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.
- Re-connect the X2 harness connector at the T3 audio amplifier. Verify that DTC B1265 does NOT set as current.
- If DTC B1265 sets as current, replace the T3 audio amplifier.
- Re-connect the X1 harness connector at the P17 information display module. Verify that DTC B1265 does NOT set as current.
- If DTC B1265 sets as current, replace the P17 information display module.