Failure Conditions
WARNING: This page is about a different car, the 1995 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
ISC motor in forward mode. TP sensor at least 9.1 degrees or less and ISC extending for 64 seconds or ISC motor in reverse mode, TP sensor position at 1.3 degrees or greater and ISC retracting for 64 seconds.