For 1990-2009 cars

# SMU - SECTION 8C1 - REVISED INFORMATION & NEW CHART #7

#### SUBJECT: SERVICE MANUAL UPDATE - SECTION 8C1 - REVISED INFORMATION AND NEW CHART #7 FOR INSTRUMENT PANEL CLUSTER (IPC) MICROPROCESSOR DIAGNOSIS

#### MODELS: 1996 BUICK SKYLARK 1996 OLDSMOBILE ACHIEVA 1996 PONTIAC GRAND AM

THIS BULLETIN IS BEING ISSUED TO PROVIDE UPDATED INFORMATION FOR SECTION 8C1. PLEASE UPDATE THE APPROPRIATE SERVICE MANUAL ACCORDINGLY.

- PAGE 8C1-22: ===========

THE "LOW COOLANT" TELLTALE OPERATION LISTED UNDER "NORMAL RESULTS" OF THE SYSTEM CHECK TABLE SHOULD READ AS FOLLOWS: "3 SECONDS "ON", THEN "OFF". CONTROLLED BY THE PCM OVER SDL. (RED)".

- PAGE 8C1-33: ===========

THE FIRST STEP IN CHART #6 THAT READS "IS VOLTS TELLTALE READING AS "ON"?" SHOULD BE CHANGED TO "IS LAMP TERMINAL READING AS "ON"?".

- PAGE 8C1-34: ===========

CHART #7, "AIR CONDITIONING DOES NOT OPERATE", SHOULD BE REPLACED WITH THE ATTACHED REVISED CHART #7.

FIGURES: 00 ATTACHMENTS: 01

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 1995 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.