Diagnostic Aids

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Remove any debris from the PCM connector surfaces before servicing the PCM. Inspect the PCM connector gaskets when diagnosing/replacing the module. Ensure that the gaskets are installed correctly. The gaskets prevent contaminate intrusion into the PCM.

For any test that requires probing the PCM or a component harness connector, use the J 35616 Connector Test Adapter Kit. Using this kit prevents damage to the harness/component terminals. Refer to Using Connector Test Adapters in Wiring Systems.

Ensure that the vehicle is equipped with electronic suspension control (ESC). This DTC sets when the body control module (BCM) is programmed if the regular production option (RPO) for the ESC is selected as active and the vehicle is not equipped with ESC.
For an intermittent condition refer to Symptoms - Engine Controls in Engine Controls-5.7L.