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 number below refers to the step number in the diagnostic procedures.
- 5
This test will determine the ability of the engine controller and IAC valve circuits to control the IAC valve. - 7
This test will determine the ability of the PCM to provide the IAC valve circuits with a ground. On a normally operating system, the test lamp should not flash while the IAC counts are incrementing.