FALSE DTC P0461, FUEL LEVEL SENSOR (CLASS D). Chevrolet S10 Pickup

SUBJECT: FALSE DTC P0461, FUEL LEVEL SENSOR (CLASS D), STORED IN VCM (REPROGRAM VCM)

MODELS: 1996 CHEVROLET AND GMC S/T MODELS WITH 4.3L ENGINE (VINS W, X - RPOS L35, LF6) BUILT PRIOR TO THE FOLLOWING VIN BREAKPOINTS

DIVISION ASSEMBLY PLANT VIN BREAK POINT

CHEVROLET LINDEN, NJ TK140898 MORAINE, OH T2165541 SHREVEPORT, LA T8131443

GMC LINDEN, NJ TK510302 MORAINE, OH T2522987 SHREVEPORT, LA T8508233

CONDITION:

DIAGNOSTIC TROUBLE CODE (DTC) P0461 STORED BUT NO PROBLEM REPORTED OR FOUND WITH THE FUEL GAUGE READING.

CAUSE:

THE VEHICLE CONTROL MODULE (VCM) PROGRAM IS INCORRECT.

CORRECTION:

REPROGRAM THE VCM USING THE NEW CALIBRATION AVAILABLE ON YOUR TECHLINE TERMINAL CD #1 (1996) OR LATER.

SERVICE PROCEDURE:

1. USE TECH 1 TO CHECK THE CALIBRATION NUMBER. 2. VEHICLES WITH OLD CALIBRATION SHOULD BE REPROGRAMMED WITH NEW "FLASH" CALIBRATION FOLLOWING THE SERVICE MANUAL PROCEDURE IN SECTION 6E, ENGINE CONTROLS.

OLD CALIBRATION NEW CALIBRATION 16235505 16237015

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OP DESCRIPTION LABOR TIME J6355 REPROGRAM USE PUBLISHED EEPROM LABOR OPERATION TIME 0.3 HR

IMPORTANT: LABOR OPERATION IS CODED TO BASE VEHICLE COVERAGE IN THE WARRANTY SYSTEM.

FIGURES: 0

CAPTIONS: 0

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.