For 1990-2009 cars

# ANTI-LOCK BRAKE SERVICE MANUAL DIAGNOSTIC CHARTS

ANTI-LOCK BRAKE SERVICE MANUAL DIAGNOSTIC CHARTS

#### VEHICLES AFFECTED: 1988 A B C D E F G H J K L M N P R S ----------------- T V W X Y Z SERIES

The attached chart updates the diagnostic procedure as published in the 1988 final Service Manual. Please update your Service Manual with this information.

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.