Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. This step determines if the condition exists.
2. This step tests the control modules ability to supply a ground to the EVAP canister purge valve.
3. This step tests the feedback voltage from the ECM. If a voltage is not available, this indicates an internal ECM condition.
4. This step tests the ignition 1 voltage circuit to the EVAP canister purge valve.