COMPASS INOPERATIVE OR LOSS OF CALIBRATION. Pontiac Bonneville 1989

1989 BONNEVILLE COMPASS - DCS MESSAGE

TWO SEPARATE CONDITIONS ARE BEING ENCOUNTERED ON THE 1989 BONNEVILLE COMPASS. THESE TWO CONDITIONS ARE A RESULT OF TWO DIFFERENT COMPONENTS. TO ELIMINATE CONFUSION ON REPAIR PROCEDURES, FOLLOW THESE GENERAL RULES.

IF THE COMPASS REPEATEDLY LOOSES CALIBRATION, IT IS MOST LIKELY THE RESULT OF THE CALIBRATION MODULE UNDER THE PACKAGE SHELF.

IF THE COMPASS BLACKS OUT AND ALL CONNECTIONS ARE COMPLETE, THE COMPASS DISPLAY PANEL IS THE MOST LIKELY CAUSE.

SERVICE FOR EITHER THE INSTRUMENT PANEL OR THE CALIBRATION MODULE IS HANDLED THROUGH AC-DELCO REPAIR STATIONS.

AS A RESULT OF INCREASED USAGE, SUPPLIES OF EXCHANGE UNITS MAY BE SHORT. DEALERSHIPS SHOULD VERIFY THAT AN EXCHANGE UNIT IS AVAILABLE BEFORE DISASSEMBLING A CUSTOMER'S VEHICLE.

PONTIAC DISCLAIMER

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.