SMU - SECTION 5E1 - FOUR WHEEL ANTILOCK BRAKE SYSTEM

SUBJECT: SERVICE MANUAL UPDATE - SECTION 5E1 - FOUR WHEEL ANTILOCK BRAKE SYSTEM

MODELS: 1991-94 LIGHT DUTY TRUCKS

THIS INFORMATION REPLACES THE INFORMATION FOUND UNDER THE FOUR WHEEL ANTILOCK BRAKE SECTION. THE DIAGNOSTIC SYMPTOM CHART FOR THE ANTILOCK LAMP "ON" SHOULD REFLECT THE FOLLOWING CHANGES:

FIGURES: 1

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 1993 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.