Idle Air Control (IAC) Valve: Inspection
- Check that the IAC valve is half open.
- Connect the IAC valve connector to the IAC valve.
- Disconnect the ECT sensor connector from the ECT sensor.
- Turn the ignition switch ON.
- Check that the IAC valve moves.NOTE: Repeat connecting and disconnecting of IAC valve connector several times and check the operation of the valve.
If operation is not as specified, replace the IAC valve.
- Turn the ignition switch OFF.
- Connect the ECT sensor connector to the ECT sensor.
- Disconnect the IAC valve connector from the IAC valve.