Failure Conditions:
WARNING: This page is about a different car, the 1990 Cadillac Seville and 1990 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
ISC plunger extending with TPS position less than or equal to 2 degrees or ISC retracting with TPS position greater than or equal to 14 degrees for 15 seconds.