Idle Air Control (IAC) Reset Procedure

Reset

If the IAC valve is disconnected or disabled with the engine running, the PCM may loose track of the IAC valve position causing erratic or incorrect idle speed. If this occurs, reset the IAC valve by doing the following:

1. The coolant temperature must be above 0°C (32°F)

2. The vehicle must be in Park (P) not Neutral (N)

3. Turn the ignition switch to Lock for 20 seconds