Idle Learn Procedure

IDLE LEARN PROCEDURE
Any time the battery is disconnected, the programmed position of the Idle Air Control (IAC) valve pintle is lost, and replaced with a "default" value. To return the IAC valve pintle to the correct position, perform the following procedure:

^ Restore battery power.
^ Connect Tech I "Scan" tool.
^ Select "IAC SYSTEM," then select "IDLE LEARN" in the "MISC TEST" mode.
^ Proceed with idle learn as directed.

This procedure allows the Electronic Control Module (ECM) memory to be updated with the correct IAC valve pintle position, for the vehicle, and provide a stable idle speed.