For 1990-2009 cars

# SERVICE MANUAL UPDATE SEC. 5E1 ABS TRACTION CONTROL SYSTEM

#### SUBJECT: SMU - SECTION 5E1-ANTILOCK BRAKES/TRACTION CONTROL SYSTEM (REV'D) INLET OUTLET VALVE VOLTAGE TEST

#### VEHICLES AFFECTED: 1991 C AND 1992 H MODELS

The following, Chart A (1 of 2) Inlet/Outlet Valve Voltage Test-Section (5E1-15 for 1992 Oldsmobile and Pontiac "H" Models/5E1-11 for 1991 Cadillac models), has been revised to better assist in the diagnosis/repair of the antilock brakes and traction control system.

Please update your service manuals for proper diagnosis procedures.

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.