Circuit/System Testing
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect harness connector at the driver door lock.
- Ignition ON, verify the scan tool Driver Door Ajar Sw parameter is Door Closed.
- If not the specified value, test the signal circuit terminal listed below for a short to ground. If the circuit tests normal, replace the BCM.
- Signal circuit terminal 4 (without RPO AU3)
- Signal circuit terminal 6 (with RPO AU3)
- If not the specified value, test the signal circuit terminal listed below for a short to ground. If the circuit tests normal, replace the BCM.
- If all circuits test normal, test or replace driver door lock.