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Test Description

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.

The number(s) below refer to the step number(s) on the diagnostic table.

  1. 3. If any of the listed DTCs are set, the PCM will not receive and learn a valid password.
    Fig 1: DTC P1630
    G01718152Courtesy of GENERAL MOTORS CORP.
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