Component Inspection

IDLE AIR CONTROL VALVE (IAC) COMPONENT INSPECTION

1. Inspect Idle Air Control (IAC) valve operation.





(a) Connect the positive (+) lead from the battery to terminal +B and negative (-) lead to terminal RSC, and check that the valve is closed.





(b) Connect the positive (+) lead from the battery to terminal +B and negative (-) lead to terminal RSO, and check that the valve is open.