Exiting ECM Switch Test Mode
WARNING: This page is about a different car, the 1990 Cadillac Fleetwood and 1990 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
To exit ECM switch test mode at any time and return to ".7.0", complete the procedures for clearing ECM or BCM trouble codes. See CLEARING TROUBLE CODES .