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Test Description

WARNING: This page is about a different car, the 2002 Pontiac Montana, 2002 Oldsmobile Silhouette, and 2002 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers in the diagnostic procedures.

  1. 4

    When using the scan tool to increment the EGR valve, increment the valve to 10 percent then to 0 percent. Repeat this process to see if the test lamp turns ON then OFF. If the test lamp stays ON after commanded to 0 percent, the EGR solenoid high control circuit is shorted to voltage.

  2. 5

    This step tests for an open in the ground circuit to the solenoid.

  3. 6

    This step tests if voltage is constantly being applied to the solenoid.
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