Circuit Description

WARNING: This page is about a different car, the 1997 Pontiac Bonneville, 1997 Oldsmobile Regency, 1997 Oldsmobile LSS, 1997 Oldsmobile Eighty-Eight, and 1997 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.

PCM controls fuel injector driver circuit using a General FET Driver (GFD). GFD has ability to detect electrical faults on any injector feed or driver circuits. If an electrical fault is detected, GFD signals PCM to set DTC P1200.

Conditions required to set DTC are:

Incorrect voltage level detected on injector driver circuit(s).
Listed condition present for greater than 5 seconds.