For 1990-2009 cars

# SERVICE MANUAL UPDATE-SEC 9J-A DTC 24/CHART REPLACEMENT

THIS BULLETIN UPDATES SIR SYSTEM DIAGNOSIS (SECTION 9J-A) OF THE 1992 "F" CAR SERVICE MANUAL.

DTC 24 (PAGE 3 OF 3) "STEERING COLUMN CIRCUIT VOLTAGE TOO LOW" HAS BEEN REVISED TO ENSURE ACCURATE DIAGNOSTIC PROCEDURES.

PLEASE UPDATE THE 1992 SERVICE MANUAL ART ON PAGE 9J-A-47. THE REVISIONS HAVE BEEN HIGHLIGHTED IN GRAY ON THE ATTACHED CHART TO HELP YOU FIND THE NEW MATERIAL.

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 1992 GENERAL MOTORS CORPORATION ALL RIGHTS RESERVED