For 1990-2009 cars

# INSTRUMENT CLUSTER RESETS WHEN ON-BOARD

#### SUBJECT: INSTRUMENT CLUSTER RESETS WHEN ON-BOARD HAM RADIO IS KEYED (REPLACE THE PCM)

#### MODELS: 1997 BUICK CENTURY, REGAL 1997 CHEVROLET MALIBU 1997 OLDSMOBILE CUTLASS WITH 3100/3800 V6 ENGINE (VINS M, K, 1 - RPOS L82, L36, L67)

#### CONDITION:

SOME VEHICLES MAY EXPERIENCE AN INSTRUMENT CLUSTER RESET IF THE VEHICLE HAS AN ON-BOARD HAM RADIO OPERATING UNDER THE 10 MHZ FREQUENCY RANGE AND THE TRANSMITTER IS KEYED ON.

#### CORRECTION:

A NEW PCM HAS BEEN RELEASED TO CORRECT THIS CONDITION. THE NEW PCM HAS A 47 MICRO HENRY CHOKE IN PLACE TO ELIMINATE THE INTERFERENCE GENERATED BY THE ON-BOARD HAM RADIO EQUIPMENT.

DO NOT FORGET TO TRANSFER THE KNOCK SENSOR MODULE FROM THE OLD PCM INTO THE NEW PCM.

#### PARTS INFORMATION:

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

PART DESCRIPTION PART NUMBER APPLICATION

PCM 16268183 1997 BUICK REGAL WITH L67 1997 CHEVROLET MALIBU

WITH L82 1997 OLDSMOBILE CUTLASS WITH L82

PCM 16268178 1997 BUICK CENTURY WITH L82/L36

#### WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR CODE: J6360 PCM, REPLACE LABOR TIME: USE PUBLISHED LABOR OPERATION TIME.

FIGURES: 0 ATTACHMENTS: 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.

COPYRIGHT 1997. GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.