Circuit/System Testing
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the BEC connector C1. Verify the DTC resets.
- If the DTC does not reset, replace the BEC.
- Test for a short to voltage in the passenger door unlock relay control circuit.
- If all circuits/connections test normal, replace the BCM.