Astro Van L AWD V6-4.3L VIN W (1996)
Idle Speed/Throttle Actuator - Electronic: Service and Repair
Idle Air Control (IAC) Reset Procedure
With Scan Tool
1. Turn the ignition On leaving the engine off.
2. Install a scan tool.
3. Go to the appropriate engine file.
4. F4 Misc. Tests.
5. F3 IAC System.
6. F1 IAC Reset.
7. Use the up arrow in order to reset the IAC.
Without Scan Tool
1. For 10 seconds, disconnect the negative battery cable.
2. Reconnect the negative battery cable.
3. For 5 seconds, turn the engine On leaving the engine off.
4. For 10 seconds, turn the ignition OFF.
5. Start the engine.
6. Check for proper operation.
