Conditions for Running the DTC

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Battery voltage is between 9.0 and 16 volts.
The BCM has received a class 2 message from the DDM and has grounded the left rear power window relay control circuit.