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 tests if the concern is active. - 5
This step verifies that the control module is providing ground to the EVAP purge valve. - 6
This step tests if a ground is constantly being applied to the EVAP purge valve.