NOISE IN AM BAND OF RADIO WITH REAR WINDOW. Cadillac Catera 1997

SUBJECT: NOISE IN AM BAND OF RADIO WITH REAR WINDOW DEFOGGER ON (REPLACE THE ANTENNA AMPLIFIER)

MODELS: 1997 CADILLAC CATERA BUILT PRIOR TO VIN BREAKPOINT VR128977

CONDITION: SOME OWNERS MAY COMMENT ON A CONDITION OF WHISTLE, WHINE, STATIC OR IGNITION NOISE ON LOWER FREQUENCIES OF THE AM BAND OF THE RADIO AFTER THE REAR WINDOW DEFOGGER HAS BEEN ON FOR APPROXIMATELY 10 MINUTES. THIS NOISE IS THROTTLE SENSITIVE AND WILL GO AWAY WHEN THE REAR WINDOW DEFOGGER IS TURNED OFF.

CAUSE: THIS CONDITION MAY BE CAUSED BY A FAULTY NOISE SUPPRESSION COIL IN THE ANTENNA AMPLIFIER.

CORRECTION: TO REPAIR THIS CONDITION, REPLACE THE RADIO ANTENNA AMPLIFIER, WHICH IS LOCATED UNDER THE REAR PARCEL SHELF TRIM. THE OLD ANTENNA AMPLIFIER WAS BLUE AND THE NEW ONE IS COLORED GREEN FOR IDENTIFICATION PURPOSES.

PARTS INFORMATION:

DESCRIPTION PART NUMBER AMPLIFIER, RDO ANT 09114991

PARTS WILL BE AVAILABLE FROM GMSPO ON MAY 15, 1997.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE: LABOR OPERATION: LABOR TIME: R0130 0.9

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.