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Test Description

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to step numbers in diagnostic procedure.

  1. 4  - This step tests for a short to ground on the ignition 1 voltage supply circuit of the fuel injector.
  2. 5  - This step tests for a short to a PCM ground on the ignition 1 voltage supply circuit of the fuel injector.
  3. 6  - This step tests for an open between the multi-way connector and the fuel injectors.
  4. 7  - This step tests for an open or high resistance between the multi-way connector and the fuel injectors.

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