For 1990-2009 cars

# SERVICE MANUAL UPDATE SEC. 6E3 WIRING DIAGRAM CORRECTIONS

THIS BULLETIN UPDATES THE FOLLOWING PAGES IN THE 1992 "N" 3300 (VIN N) SERVICE MANUAL:

- ECM WIRING DIAGRAM (3 OF 3). . . . . . . . . . . . 6E3-A-6 - FACING PAGE ART FOR DIAGNOSTIC CIRCUIT CHECK . . . 6E3-A-10 - FACING PAGE ART FOR CHART A-1. . . . . . . . . . . 6E3-A-16 - FACING PAGE ART FOR CHART A-2. . . . . . . . . . . 6E3-A-18 - FACING PAGE ART FOR CODE 16 CHART. . . . . . . . . 6E3-A-40 - FACING PAGE ART FOR CODE 34 CHART. . . . . . . . . 6E3-A-58

ALSO, CIRCUIT 439/ERLS FUSE SHOULD BE CHANGED TO CIRCUIT 639/IGNITION ECM FUSE ON THE FOLLOWING PAGES:

- CHART A-1, CHART. . . . . . . . 6E3-A-16, 17 - CODE 34, CHART. . . . . . . . . 6E3-A-59 - ECM SYMPTOM CHART (3 OF 6). . . 6E3-B-21

PLEASE MAKE THE APPROPRIATE CHANGES TO THE 1992 "N" 3300 (VIN N) SERVICE MANUAL.

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.