SMU - SECTION 3B - CONTROL MODULE SYSTEM. Chevrolet Chevy Suburban

SUBJECT: SERVICE MANUAL UPDATE-SECTION 3B-CONTROL MODULE SYSTEM (ECM/GMCM) - REVISED TROUBLE TREE UNDER DTC 21

MODELS: 1995 CHEVROLET AND GMC TRUCK C/K MODELS WITH MANUAL TRANSMISSION AND 5.0L OR 5.7L ENGINE (VINS H, K - RPOS L03, L05)

THIS BULLETIN IS BEING ISSUED TO INFORM DEALERSHIPS AND TECHNICIANS OF A MISPLACED TROUBLE TREE WITH THE CORRECT TITLE DTC 21 THROTTLE POSITION SENSOR (TPS) CIRCUIT (SIGNAL VOLTAGE HIGH). THE TROUBLE TREE IS TO BE REPLACED WITH THE TROUBLE TREE WHICH IS ATTACHED TO THIS SERVICE MANUAL BULLETIN ON THE FOLLOWING PAGES:

* 1995 C/K DRIVEABILITY EMISSIONS AND ELECTRICAL DIAGNOSIS SERVICE MANUAL #GMT/95-C/K-2F (REPLACEMENT) - PAGE 3B-39

* 1995 C/K DRIVEABILITY EMISSIONS AND ELECTRICAL DIAGNOSIS SERVICE MANUAL #GMT/95-C/K-2 - PAGE 3B-4L

FIGURES: 00 ATTACHMENTS: 01

Object Number: 82700 Size: FS

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.