For 1990-2009 cars

# SERVICE MANUAL UPDATE SEC. 8A ELECTRICAL TROUBLESHOOTING

SERVICE MANUAL UPDATE

#### SECTION 8A - 76

MULTI-FUNCTION ALARM MODULE

1990 AND 1991 ALL J/N CARLINES

1. THE FASTEN BELTS INDICATOR TEST NEEDS TO BE UPDATED TO REFLECT A FAULT IN THE AUTOMATIC SAFETY BELT CIRCUIT. IF THE FASTEN BELTS INDICATOR REMAINS LIT AFTER PERFORMING TEST "D" IN SECTION 8A-76, CHECK FOR AN OPENING IN THE 528 CKT BETWEEN TERM "B" OF THE MULTI-FUNCTION ALARM MODULE AND SPLICE S246 (BUICK ONLY) SPLICE S237 FOR ALL OTHER CARLINES.

2. THE CIRCUIT OPERATION FOR THE FASTEN BELTS INDICATOR NEEDS TO INCLUDE THE STATEMENT: THE FASTEN BELTS INDICATOR WILL REMAIN LIT IF THERE IS A FAULT IN THE AUTOMATIC SAFETY BELT CIRCUIT.

PLEASE NOTE YOUR COPIES OF THE ABOVE SERVICE MANUALS.

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.

COPYRIGHT 1991 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.