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, disconnect the X1 harness connector at the auxiliary audio jack.
- Ignition ON, test for less than 1 V between the terminals listed below and ground:
- signal terminal 1
- signal terminal 2
- If greater than the specified value, test the circuit for a short to voltage. If the circuit tests normal, replace the multimedia player interface module.
- Ignition OFF, test for infinite resistance between the terminals listed below and ground:
- signal terminal 1
- signal terminal 2
- If less than the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the multimedia player interface module.
- If all of the circuits test normal, replace the auxiliary audio jack.