Test Description

Numbers below refer to the numbers in the Diagnostic Procedure:

1. 1 -  Check to see if solenoid is open or closed. Solenoid is normally de-energized in this step.
2. 2 -  This step checks to determine if the solenoid was open due to an electrical circuit problem or a defective solenoid.
3. 3 -  This should normally energize the solenoid, opening the valve and allowing vacuum to drop (purge On).