Diagnostic Aids

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.

Perform a visual inspection for loose or poor connections at all related components. Refer to TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS in Wiring Systems.
In the event that DTC B2625 and DTC B0951 are set at the same time, the diagnostic chart for diagnosing DTC B0951 must be followed first.