INFORMATION ON REAR DEFOG INOP. &/OR DTC F52 AFTER HEAT.. Cadillac Catera 1997

SUBJECT: INFORMATION ON REAR DEFOGGER INOPERATIVE AND/OR DTC F52 AFTER HEATER AND A/C CONTROL REPLACEMENT

MODELS: 1997 CADILLAC CATERA

A SERVICE HEATER AND A/C CONTROL MUST BE PROGRAMMED AFTER INSTALLATION USING THE TECH 2. SYMPTOMS OF AN UNPROGRAMMED CONTROL UNIT ARE THE REAR DEFOGGER IS INOPERATIVE AND/OR DTC F52 IS SET. BOTH THE REAR WINDOW GRID AND THE REAR DEFOGGER SYMBOL ON THE DISPLAY ARE INOPERATIVE. OPERATION CAN BE RESTORED FOR THE CURRENT IGNITION CYCLE ONLY BY DRIVING ABOVE 3 MILES PER HOUR.

AFTER INSTALLATION OF A SERVICE HEATER AND A/C CONTROL, PROGRAM THE UNIT USING THE TECH 2. THE PROGRAMMING OPTION IS INITIATED BY SELECTING "F4: PROGRAMMING" ON THE "HEATER AND AIR CONDITIONING" MENU. AT THIS POINT, THE TECH 2 CURRENTLY ASKS A QUESTION REGARDING U.S. OR CANADIAN CAR AND THE QUESTION "DOES THE CAR HAVE SIDE AIRBAGS? TO PROGRAM THE HEATER AND A/C CONTROL, ANSWER THE "AIRBAG" QUESTION "NO" FOR 1997 VINS PRIOR TO VR138045 AND "YES" FOR 1997 VINS VR138045 AND AFTER. DISREGARD WHETHER THE CAR ACTUALLY HAS SIDE AIRBAGS OR NOT AND ANSWER THE AIRBAG QUESTION BASED ON VIN NUMBER ACCORDING TO THE ABOVE. THE REAR DEFOGGER OPERATION SHOULD BE RESTORED AT THIS TIME.

IN FUTURE CD-ROM UPDATES, THE HEATER AND A/C CONTROL PROGRAMMING QUESTION ON THE TECH 2 WILL CHANGE FROM "DOES THE CAR HAVE SIDE AIRBAGS?" TO SOMETHING REGARDING THE VIN OR OTHER TYPE OF INFORMATION. WHEN THIS OCCURS, ANSWER THE PARTICULAR QUESTION(S) ASKED. UNTIL THIS TIME, PROGRAM THE HEATER AND A/C CONTROL BY ANSWERING THE AIRBAG QUESTION ACCORDING TO THE ABOVE INSTRUCTIONS.

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.