For 1990-2009 cars

# SERVICE MANUAL UPDATE SEC. 8A REVISED DIAG. ABS CODE A003

#### ELECTRICAL

#### SUBJECT: SERVICE MANUAL UPDATE - SECTION 8A, ANTILOCK BRAKES - CODE A003

#### VEHICLES AFFECTED: 1989-91 "W"

Service Manual, Section 8A-44, Antilock Brakes, the Diagnostic Chart for Code A003 on Page 8A-44-19 has been revised. Replace chart with the attached revised copy.

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.