The 7th generation Buick LeSabre was produced in 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999. During this time, the model underwent a facelift. In our material you will find a description of Buick LeSabre 7 fuses and relays with fuse box diagrams, their locations and photo examples of implementation. Note the cigarette lighter fuse. This information will also be useful to owners of Buick Park Avenue 1G, since these cars have similar electrical circuits.
The purpose of fuses and relays may differ from those presented and depend on the engine size, year of manufacture and level of electrical equipment.
Contents
Passenger compartment
Fuse box
Inside the car, the fuse box is located under the instrument panel, on the driver’s side.
Type 1
Diagram
Assignment
| 1 | Not Used |
| 2 | Not Used |
| 3 | Power Seats Circuit Breaker |
| 4 | Not Used |
| 5 | Not Used |
| 1A | PASS Key |
| 2A | Spare |
| 3A | Not Used |
| 4A | Not Used |
| 5A | Up-Level HVAC, ALM, Cruise Control, Cluster |
| 6A | Courtesy Lamps, Power Mirrors |
| 7A | Not Used |
| 8A | Perimeter Lighting |
| 9A | Not Used |
| 1B | Turn Signal, Back-Up Lamps, BTSI |
| 2B | Spare |
| 3B | Not Used |
| 4B | Not Used |
| 5B | Anti-Lock Brake System, Computer Command Control |
| 6B | Brake and Hazard Lamps |
| 7B | Not Used |
| 8B | Interior Lighting |
| 9B | Cigarette Lighter |
| 1C | Air Bag System |
| 2C | Spare |
| 3C | Not Used |
| 4C | Not Used |
| 5C | Cooling Fans, Transaxle |
| 6C | Parking Lamps, Interior Lamps |
| 7C | Not Used |
| 8C | Parking Lamps |
| 9C | Radio, Cluster |
| 1D | Telltale, Chime, Cluster, RAC, LCM |
| 2D | Spare |
| 3D | Heated Mirrors |
| 4D | Not Used |
| 5D | Base NC |
| 6D | Not Used |
| 7D | TCC |
| 8D | Radio |
| 9D | Not Used |
| 1E | Not Used |
| 2E | Air Bag System, PASS-Key |
| 3E | Not Used |
| 4E | Not Used |
| 5E | Rear Defog |
| 6E | Not Used |
| 7E | Miscellaneous Engine-Non OBD II |
| 8E | Wipers, Washer |
| 9E | Not Used |
Fuse 9B is responsible for the operation of the cigarette lighter.
Type 2
Check the purpose of the elements with your diagrams on the back of the block cover.
Type 3
Diagram
Designation
| 1 | 10A Supplemental restraint system (SRS) |
| Security system | |
| 2 | |
| 3 | 30A Power windows |
| Sunroof | |
| 4 | 30A Memory seats |
| Electric mirror module | |
| Central locking | |
| Electric seats | |
| Heated rear windscreen | |
| Keyless entry receiver | |
| 5 | |
| 6 | 15A Electric rear-view mirror |
| Memory seats | |
| Electric mirror module | |
| Instrument panel | |
| Warning system | |
| Supplemental restraint system (SRS) | |
| 7 | 10A Supplemental restraint system (SRS) |
| 8 | 20A Exterior lights |
| 9 | 10A Spare fuse |
| 10 | 15A Spare fuse |
| 11 | 15A Instrument panel |
| Interior lights | |
| Dimmer | |
| Radio | |
| Warning system | |
| Air conditioning | |
| Bulb monitor | |
| 12 | 20A Electronic level control |
| 13 | 20A Exterior lights |
| ABS | |
| Traction control unit | |
| 14 | 15A Headlights |
| Exterior lights | |
| 15 | 15A Interior lights |
| Memory seats | |
| Electric mirror module | |
| Electric seats | |
| Electric mirrors | |
| Door lights | |
| 16 | 10A Cooling fan(s) |
| Fuel injection | |
| 17 | 25A Air conditioning |
| Cruise control unit | |
| Heated rear windscreen | |
| Electronic level control | |
| 18 | |
| 19 | 10A ABS |
| Traction control unit | |
| 20 | 10A Bulb monitor |
| Instrument panel | |
| 21 | 10A Interior lights |
| Dimmer | |
| 22 | 20A Spare fuse |
| 23 | 25A Spare fuse |
| 24 | 10A Interior lights |
| Radio | |
| Dimmer | |
| 25 | 25A Windscreen wash/wipe system |
Fuse and relay box
On the passenger side, at the bottom of the panel, there is a fuse and relay box.
Type 1
Diagram
Allocation
| 1 | 10А Air conditioning |
| 2 | |
| 3 | 15А Central locking |
| Keyless entry receiver | |
| Interior lights | |
| Electric antenna | |
| Door lights | |
| 4 | 20А Horns |
| Luggage compartment closing | |
| Keyless entry receiver | |
| 5 | 15А Fuel injection |
| Starter system | |
| Charging system | |
| Cruise control | |
| Air conditioning | |
| Electronic power steering | |
| 6 | 20А Fuel system control unit |
| Ignition system | |
| 7 | 10А Fuel system control unit |
| 8 | 10А Security system |
| Fuel injection | |
| Instrument panel | |
| R1 | Central locking relay |
| R2 | Heated rear windscreen relay |
| R3 | Luggage compartment opening relay |
| R4 | Not used |
| R5 | Not used |
| R6 | Fuel pump relay |
| Additional relay, fuel pump | |
| R7 | Electronic level control relay |
| R8 | Interior light(s) relay |
Type 2
Diagram
Appointment
| DR LKS Fuse 1 | 20A Body Control Module (MALL), LH Front Door Lock Isolation Relay(with AU0) |
| RAC/TRUNK REL Fuse 2 | 15A Luggage Compartment Lid Release Relay, Power Antenna Relay, Remote Function Actuator (RFA) Module, RAP Relay |
| HORN Fuse 3 | 15A Horn Relay |
| MISC ENG(OBD II) Fuse 5 | 10A Evaporative Emissions (EVAP) Canister Purge Valve, Evaporative (EVAP) Canister Vent Valve, Heated Oxygen Sensors |
| FUEL PUMP Fuse 6 | 20A Fuel Pump Relay, Ignition Control Module |
| INJECTOR Fuse 7 | 10A Fuel Injectors |
| PCM Fuse 8 | 10A Instrument Cluster, Mass Air Flow (MAF) Sensor, PCM, Transmission Position Decoder Module (Pontiac/ Oldsmobile with D55) |
| A/C FEEDBACK Fuse 11 | 10A Heater and A/C Programmer |
| FOG LPS Relay A (Pontiac/Oldsmobile) | Fog Lamps |
| PERIM LPS Relay A (Buick) | Backup Lamps, Cornering Lamps |
| DRIVER DR UNLOCK Relay B | Door Lock Actuators, Fuel Door Lock Solenoid(Pontiac with AU0) |
| TRUNK REL Relay D | Rear Compartment Lid Release Actuator |
| ELC Relay E | Automatic Level Control Compressor |
| RAP ACCY Relay F | RADIO Fuse |
| RR DEFOG Relay G | Radio Antenna Module (Buick), Rear Window Defogger (Oldsmobile/Pontiac) |
| PWR WDO/SUNROOF Relay H | Power Windows, Power Sunroof |
| HDLPS Relay J | Lamp Control Module (LCM) |
| PARK LPS Relay K | Exterior Lamps |
| FUEL PUMP Relay N | Fuel Tank Unit |
| Relay P | Not Used |
Engine compartment
Under the hood the fuse and relay box is on the right back side and is covered by a protective cover.
Photo example
Diagram Left Fuse Box
Decoding
| 1 | 40A Antilock Brake/ Traction Control System |
| 2 | 30A Antilock Brake/ Traction Control System |
| 3 | 40A Air Conditioning, Electronic Level Control, Instrument Panel, Interior Lamps, Lamp Monitor, Radio, Theft Deterrent System, Warnings And Alarms. |
| 4 | 40A Coolant Fans |
| 5 | 50A Antilock Brake/ Traction Control System, Headlamps, Exterior Lamps, Illuminated Entry, Interior Lamps, Power Mirrors, Power Seats |
| 6 | 20A Headlamps, Exterior Lamps |
| 7 | 60A Ignition |
| 8 | 50A Power Door Locks, Power Seats, Rear Defogger |
Diagram Right Fuse Box
Assignment
| 1 | 30A Spare Fuse |
| 2 | 60A Ignition |
| 3 | 30A Air Conditioning |
| 4 | 20A Powertrain Control Module (PCM) Power, Theft Deterrent System |
| 5 | 20A Delco-Bose® Music System (with UQ4) Spare Fuse (without UQ4) |
| 6 | 60A Spare Fuse |
| 7 | 40/60A Horns. Illuminated Entry, Luggage Compartment Lid Pull-Down, Interior Lamps, Power Antenna, Power Door Locks, Remote Keyless Entry |
| 8 | 20A Spare Fuse |
If you have anything to add – write in the comments.