For 1990-2009 cars

# SERVICE MANUAL UPDATE-SEC.5 ANTI-LOCK BRAKE SYSTEM

#### SUBJECT: SERVICE MANUAL UPDATE - SECTION 5 - ANTI-LOCK BRAKE SYSTEM (ABS DIAGNOSTICS CHARTS)

#### VEHICLES AFFECTED: 1989-1990 C-H MODELS

This Bulletin is a Service Manual Update to correct information in the Antilock Brake Section 5.

The following charts contain corrected ABS DIAGNOSTICS information.

Please update your Service Manuals accordingly.

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.