Conditions for Clearing the MIL/DTC
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- A current DTC B2645 clears when the BCM no longer detects an short to battery positive voltage in the ambient light sensor reference voltage circuit.
- A history DTC B2645 clears after 100 consecutive ignition cycles.