Circuit/System Testing
WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connectors at the following components:
- Automatic transmission control indicator
- Door lock switch - driver
- Door lock switch - front passenger
- Fog lamp switch
- Hazard Switch
- Heated seat switch - driver
- Heated seat switch - passenger
- HVAC control module
- Instrument panel cluster (IPC)
- Outside rearview mirror switch
- SWC BKLT fuse
- Traction control switch
- Turbo boost gage - with LNF
- Window switch - driver
- Window switch - front passenger
- Ignition ON, with a scan tool clear the DTC and operate the vehicle within the conditions for running the DTC and verify the DTC does not reset.
- If DTC B2625 02 sets as current, test the indicator dimming control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
- Reconnect each component one at a time and verify that the DTC does not reset as current after each component is reconnected.
- If the DTC sets as current, test or replace the component responsible for setting the DTC.