BLOWER MOTOR - RUN ON WHEN IGNITION IS OFF. Buick Regal 1997

SUBJECT: BLOWER MOTOR RUN-ON WHEN IGNITION IS OFF (REPLACE CONTROL ASSEMBLY)

MODELS: 1997 BUICK CENTURY, REGAL 1997 CHEVROLET CORVETTE

CONDITION:

SOME VEHICLES EQUIPPED WITH AUTOMATIC TEMPERATURE CONTROL (RPO CJ2) MAY EXPERIENCE AN HVAC BLOWER MOTOR RUN-ON CONDITION AFTER THE IGNITION IS TURNED OFF. THIS CONDITION CAN OCCUR APPROXIMATELY ONCE EVERY 1400 IGNITION CYCLES. CYCLING THE IGNITION SWITCH BACK TO THE "ON" POSITION WILL STOP THE BLOWER MOTOR FROM RUNNING.

CAUSE:

THIS RUN-ON CONDITION WAS FOUND IN THE SOFTWARE OF THE CJ2 HVAC CONTROL ASSEMBLY.

CORRECTION:

REPLACE THE CONTROL ASSEMBLY FOLLOWING THE PROCEDURES IN THE APPROPRIATE SECTION OF THE SERVICE MANUAL.

PARTS INFORMATION:

P/N DESCRIPTION --- -----------

09356081 CONTROL, ASSEMBLY HEATER + A/C (97 CORVETTE) 09356104 CONTROL, ASSEMBLY HEATER + A/C (97 CENTURY/REGAL)

PARTS ARE CURRENTLY AVAILABLE THROUGH GMSPO.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION DESCRIPTION LABOR TIME --------- ----------- ---------- D0362 CONTROL ASSEMBLY - REPLACE USE PUBLISHED LABOR OPERATION TIME

FIGURES: 00 ATTACHMENTS: 00

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.