Test Description

The number below refers to the step number on the diagnostic procedure.

1. 3  - This step determines if the Ignition system is working correctly.
2. 4  - The counter should stop incrementing with the camshaft position signal circuit disconnected and set DTC P0340. If the counter still increments, this indicates that the PCM is malfunctioning.
3. 17  - This step determines if excessive resistance in the AIR supply voltage circuit is the cause for an inoperative AIR pump. Two ohms of resistance on this circuit can prevent the AIR pump from running.
4. 18  - This step determines if excessive resistance in the AIR ground circuit or connection is the cause for an inoperative AIR pump. Two ohms of resistance on this circuit can prevent the AIR pump from running.
5. 19  - This step determines if the AIR system is operating properly.
6. 21  - This step determines if the AIR solenoid is stuck open.