GM Service Manual Online
For 1990-2009 cars only

ABS TELLTALE ILLUMINATES DUE TO DECK RELEASE DEPRESSED

SUBJECT: ABS TELLTALE ILLUMINATION DUE TO DECK LID RELEASE SWITCH BEING DEPRESSED (INSTALL DIODE JUMPER)

VEHICLES AFFECTED: 1991 "C" MODEL

Some 1991 DeVilles and Fleetwoods may experience a condition of the amber ABS telltale coming on after the deck lid release switch has been depressed. This condition is caused by a transient in the vehicle's electrical system created by the permanent magnet motor and mechanical switch used to release the deck lid.

CORRECTION:

------------ This condition can be corrected by installing a Diode Jumper, part number 12125864. The jumper is to be plugged in between the existing harness connector and the release motor at the deck lid.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.