Powertrain Control Module/Vehicle Control Module: Notes

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 GMC Savana, 2002 Chevrolet Chevy Express, 2001 GMC Savana Special, 2001 GMC Savana Camper Special, and 2001 GMC Savana. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When diagnosing or replacing PCM, remove any debris from PCM connector surfaces before servicing PCM module connector gaskets. Ensure gaskets are installed correctly. Gaskets prevent contamination intrusion into PCM. Replacement PCM must be reprogrammed. See PROGRAMMING .