Test Description
WARNING: This page is about a different car, the 2002 Pontiac Sunfire, 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The number below refer to the step number on the diagnostic procedure.
- 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 circuits with a ground. On a normal operating system, the test light should not flash while the IAC counts are incrementing.