Test Description
WARNING: This page is about a different car, the 2002 GMC Sierra and 2002 Chevrolet Silverado. 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.
- 2
This step determines if the DTC is an intermittent. - 3
This step checks if the IC timing signal from the PCM is available at the ICM.