Computer Command Control - Throttle Body Fuel Injection

To reset the Idle Air Control (IAC) valve pintle position, proceed with the following:

1. Block the drive wheels, and apply the parking brake. Select "Engine rpm" on "Scan" tool.
2. Start the engine, and hold the engine speed above 2000 rpm. Select "Field Service Mode" for ten seconds (this will reset the IAC valve pintle position).
3. Exit "Field Service Mode," and allow the engine to return to idle.
4. Turn the ignition "OFF," then restart the engine and check for the proper idle operation.