For 1990-2009 cars

# INOPERATIVE POWER SEATS AND/ OR DOOR LOCKS

#### SUBJECT: INOPERATIVE POWER SEATS AND/OR DOOR LOCKS WITH SIMULTANEOUS USE OF REAR WINDOW DEFOGGER (SUGGESTED OPERATION OR REWIRE)

#### MODELS: 1992-93 BUICK LESABRE, PARK AVENUE 1992-93 OLDSMOBILE EIGHTY EIGHT, NINETY EIGHT 1992-93 PONTIAC BONNEVILLE

#### CONDITION:

SOME OWNERS MAY COMMENT ON INOPERATIVE POWER SEATS AND/OR POWER DOOR LOCKS IF THEY TURN THE REAR DEFOGGER ON AT THE SAME TIME.

#### CAUSE:

CIRCUIT BREAKER #4 IN THE I/P FUSE BLOCK IS DESIGNED TO INTERRUPT CURRENT IF CIRCUIT 60 IS OVERLOADED. DURING COLD WEATHER WHEN THE POWER SEATS ARE RUN TO THE FULL FORWARD OR FULL REARWARD POSITION, OR THE POWER DOOR LOCKS ARE USED WITH THE REAR DEFOGGER IN THE "ON" POSITION, IT IS POSSIBLE THAT THE CIRCUIT BREAKER COULD OPEN. THIS IS NORMAL. IF AN OWNER SHOULD COMMENT ON THIS, IT SHOULD BE EXPLAINED TO THE OWNER THAT THE CIRCUIT IS OPERATING AS DESIGNED.

IF THE OWNER IS DISSATISFIED WITH THIS EXPLANATION AND REQUESTS THAT A MODIFICATION BE MADE, THE FOLLOWING PROCEDURE SHOULD BE USED TO BREAK THE REAR DEFOGGER GRID OFF OF CIRCUIT BREAKER #4.

#### CORRECTION:

#### IMPORTANT: USE THE APPLICABLE SERVICE MANUAL, SECTIONS 8A-61, I/P FUSE BLOCK/RELAY CENTER DETAILS, REAR DEFOGGER/HEATED MIRRORS AND POWER DISTRIBUTION AND SECTION 8C AS A GUIDELINE.

ALL "H" BODY VEHICLES: =====================

1. IGNITION "OFF".

2. REMOVE LEFT LOWER I/P INSULATOR.

3. REMOVE LEFT KICK PANEL.

4. REMOVE AND SET ASIDE HOOD RELEASE HANDLE.

5. LOCATE SPLICE S227, SPLICE IS DIRECTLY BEHIND HOOD RELEASE CABLE.

6. CUT WIRE HARNESS TAPE TO ACCESS SPLICE, SEPARATE SPLICE.

7. IGNITION "ON". CONNECT TEST LIGHT TO GROUND, CHECK WIRES AT SPLICE TO LOCATE BATTERY FEED.

8. CONNECT TEST LIGHT TO GROUND AND REAR DEFOGGER POWER FEED ON RIGHT SIDE OF REAR GLASS.

DURING THE NEXT PROCEDURE, THE IGNITION SWITCH MUST BE "ON" AND REAR DEFOGGER BUTTON PUSHED TO "ON".

9. USING A FUSED JUMPER, CONNECT ONE END TO BATTERY FEED FOUND AT SPLICE AND CONNECT OTHER END ONE AT A TIME TO OTHER WIRES AT SPLICE. TEST LIGHT WILL LIGHT WHEN THE REAR DEFOGGER FEED WIRE IS FOUND.

10. PULL REAR DEFOGGER FEED ASIDE AND RECONNECT SPLICE, TAPE OFF BACK INTO HARNESS.

11. ATTACH ENOUGH WIRE TO THE REAR DEFOGGER WIRE TO RUN THE WIRE TO THE I/P FUSE BLOCK.

12. STRIP BACK WIRE AT CIRCUIT 5 RED 1451 AND SOLDER IN RED 5.0 GAGE WIRE.

13. PUSH TERMINALS INTO CIRCUIT BREAKER HOLDER, P/N 12110057.

14. INSTALL 30 AMP CIRCUIT BREAKER, P/N 12077843, IN CIRCUIT BREAKER HOLDER.

15. TAPE CIRCUIT BREAKER HOLDER TO THE I/P FUSE BLOCK AND TAPE 1451 AND 60 WIRES TO BUNDLE BEHIND I/P FUSE BLOCK.

16. LABEL CIRCUIT BREAKER "REAR DEFOGGER".

17. ATTACH END OF RED 5.0 GAGE WIRE AND THE 2 ORN/BLK 60 TO WIRE TERMINAL ENDS, P/N 12065916.

18. TEST REAR DEFOGGER OPERATION.

19. INSTALL HOOD RELEASE HANDLE, KICK PANEL AND LEFT INSULATOR.

BUICK PARK AVENUE: =================

1. IGNITION "OFF".

2. REMOVE WOODGRAIN I/P TRIM PANELS.

3. REMOVE AIR DEFLECTORS AND GLOVEBOX ASSEMBLY.

4. REMOVE I/P TRIM PLATE.

5. REMOVE LEFT AND RIGHT CLOSEOUT PANELS.

6. REMOVE KNEE BOLSTER.

7. REMOVE RAC MODULE TO EASE ACCESS TO RELAY CENTER.

8. REMOVE THE TWO LOWER RELAYS FROM RELAY CENTER, REMOVE SCREW FROM CENTER OF RELAY CENTER.

9. TURN RELAY CENTER AROUND TO GAIN ACCESS TO BACKSIDE, REMOVE GRAY COVER FROM BACKSIDE OF RELAY CENTER.

10. LOCATE ORN/BLK WIRE AT REAR DEFOG RELAY AND CUT WIRE 4 INCHES FROM TERMINAL.

11. TAPE ORN/BLK WIRE BACK INTO BODY HARNESS.

12. SPLICE 5.0 GAGE WIRE TO ORN/BLK WIRE AT RELAY CENTER.

13. STRIP CIRCUIT 60 ORN/BLK AT FUSE BLOCK ON LEFT SIDE OF VEHICLE AND SOLDER THE 5.0 GAGE WIRE TO THE ORN/BLK WIRE.

14. PUSH TERMINALS INTO CIRCUIT BREAKER HOLDER, P/N 12110057.

15. INSTALL 30 AMP CIRCUIT BREAKER, P/N 12077843, IN CIRCUIT BREAKER HOLDER.

16. TAPE CIRCUIT BREAKER HOLDER TO THE I/P FUSE BLOCK AND TAPE CIRCUIT 60 WIRES TO BUNDLE BEHIND I/P FUSE BLOCK.

17. LABEL CIRCUIT BREAKER "REAR DEFOGGER".

18. ATTACH END OF RED 5.0 GAGE WIRE AND THE 2 ORN/BLK 60 TO WIRE TERMINAL ENDS, P/N 12065916.

19. TEST REAR DEFOGGER OPERATION.

20. INSTALL COVER ONTO BACKSIDE OF RELAY CENTER.

21. TAPE NEW WIRE HARNESS UNDER I/P TO EXISTING HARNESS.

22. INSTALL KNEE BOLSTER, I/P TRIM PLATE, AIR DEFLECTOR AND GLOVEBOX ASSEMBLY, AND I/P WOODGRAIN TRIM PANELS.

OLDSMOBILE NINETY EIGHT: =======================

1. REMOVE LEFT AND RIGHT LOWER I/P INSULATORS.

2. LOCATE AND REMOVE FROM RETAINER THE REAR DEFOGGER TIMER RELAY.

3. CUT ORN/BLK AT RELAY CONNECTOR 4 INCHES FROM END OF CONNECTOR.

4. TAPE WIRE FROM HARNESS BACK INTO HARNESS.

5. SPLICE 5.0 GAGE WIRE TO ORN/BLK WIRE AT TIMER RELAY.

6. AT LEFT SIDE OF I/P FUSE BLOCK, STRIP CIRCUIT 60 ORN/BLK WIRE AND SOLDER 5.0 GAGE WIRE TO ORN/BLK WIRE.

7. PUSH TERMINALS INTO CIRCUIT BREAKER HOLDER, P/N 12110057.

8. INSTALL 30 AMP CIRCUIT BREAKER, P/N 12077843, IN CIRCUIT BREAKER HOLDER.

9. TAPE CIRCUIT BREAKER HOLDER TO THE I/P FUSE BLOCK AND CIRCUIT 60 WIRES TO BUNDLE BEHIND I/P FUSE BLOCK.

10. LABEL CIRCUIT BREAKER, "REAR DEFOGGER".

11. ATTACH END OF RED 5.0 GAGE WIRE AND THE 2 ORN/BLK 60 TO WIRE TERMINAL ENDS, P/N 12065916.

12. TEST REAR DEFOGGER OPERATION.

13. REINSTALL LEFT AND RIGHT LOWER I/P INSULATORS.

#### PARTS INFORMATION:

P/N DESCRIPTION ======= ===========

12065916 SPRING/TERMINAL ASSEMBLY 12077843 MAXI FUSE CIRCUIT BREAKER - 30 AMP 12110057 CONNECTOR FOR MAXI FUSE 12110058 COMB

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

#### WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION NUMBER: N6440 LABOR TIME: 0.5 HR (FOR ALL "H" CARS) ADD: 0.4 HR (FOR R+R TRIM TO ACCESS HARNESS) LABOR TIME: 0.5 HR (FOR BUICK "C" CARS) ADD: 0.5 HR (FOR R+R TRIM TO ACCESS HARNESS) LABOR TIME: 0.4 HR (FOR OLDSMOBILE "C" CARS) ADD: 0.3 HR (FOR R+R TRIM TO ACCESS HARNESS)

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.

COPYRIGHT 1995 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.