Page Contents:
In this article, you will find information about the fuses of the Buick LeSabre (modes 2000, 2001, 2002, 2003, 2004, and 2005), including diagrams of the fuse boxes, a list of fuses, their designation, and the location of the fuse blocks within the vehicle.
Checking and Replacing Fuses in Buick LeSabre
The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links. This greatly reduces the chance of damage caused by electrical problems.
Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating.
Caution!
- Data on the replacement fuse must match the data on the defective fuse.
- Before replacing a fuse, turn every vehicle electrical switch off.
Location of Fuse Boxes
Engine Compartment Fuse Block:
The engine compartment fuse block is located near the front on the passenger’s side of the vehicle. Lift the cover to gain access. On some vehicles, there may be an additional cover that you will need to lift to gain access to the fuses.
Rear Underseat Fuse Block:
The rear fuse block is located beneath the rear seat on the driver’s side. The rear seat cushion must be removed to access the fuse block.
To remove the rear seat cushion, do the following:
- Pull up on the front of the cushion to release the front hooks.
- Pull the cushion up and out toward the front of the vehicle.
To help avoid damage to the battery and wires, be careful when removing or reinstalling the seat cushion. Do not remove covers from covered parts. Do not store anything under the seat, as objects could touch exposed wires and cause a short.
Fuse Box Diagrams
2000-2001
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | Not Used |
| 2 | Accessory |
| 3 | Windshield Wipers |
| 4 | Not Used |
| 5 | Left Low-Beam Headlamp |
| 6 | Right Low-Beam Headlamp |
| 7 | Instrument Panel |
| 8 | Powertrain Control Module Battery |
| 9 | Right High-Beam Headlamp |
| 10 | Left High-Beam Headlamp |
| 11 | Ignition 1 |
| 12 | Not Used |
| 13 | Transaxle |
| 14 | Cruise Control |
| 15 | Direct Ignition System |
| 16 | Injector Bank #2 |
| 17 | Not Used |
| 18 | Not Used |
| 19 | Powertrain Control Module Ignition |
| 20 | Oxygen Sensor |
| 21 | Injector Bank #1 |
| 22 | Auxiliary Power |
| 23 | Cigarette Lighter |
| 24 | Fog Lamps / Daytime Running Lamps |
| 25 | Horn |
| 26 | Air Conditioner Clutch |
| 27 | High-Beam Headlamp |
| 28 | Low-Beam Headlamp |
| 29 | Fog Lamps |
| 30 | Daytime Running Lamps |
| 31 | Horn |
| 32 | Air Conditioner Clutch |
| 33 | HVAC Solenoid |
| 34 | Accessory |
| 35 | Air Pump |
| 36 | Starter 1 |
| 37 | Cooling Fan 2 |
| 38 | Ignition 1 |
| 39 | Cooling Fan Series/Parallel |
| 40 | Cooling Fan 1 |
| 41 | Starter |
| 42 | AIR |
| 43 | ABS |
| 44 | Air Pump B |
| 45 | Air Pump A |
| 46 | Cooling Fan 2 |
| 47 | Cooling Fan 1 |
| 48 | Spare |
| 49 | Not Used |
| 50 | Not Used |
| 51 | Not Used |
| 52 | Not Used |
| 53 | Fuse Puller |
Rear Underseat Fuse Block
| № | Usage |
|---|---|
| 1 | Fuel Pump |
| 2 | HVAC Blower |
| 3 | Memory |
| 4 | ALDL |
| 5 | Rear Fog Lamps |
| 6 | CD |
| 7 | Driver’s Door Module |
| 8 | Air Bag System (SIR) |
| 9 | Not Used |
| 10 | Right Parking Lamp |
| 11 | Vent Solenoid |
| 12 | Ignition 1 |
| 13 | Left Parking Lamp |
| 14 | Dimmer |
| 15 | Not Used |
| 16 | Left Front Heated Seat |
| 17 | Not Used |
| 18 | Rear Door Module |
| 19 | Stoplamp |
| 20 | NSBU |
| 21 | Audio |
| 22 | Retained Accessory Power (RAP) |
| 23 | Not Used |
| 24 | Not Used |
| 25 | Passenger Door Module |
| 26 | Body |
| 27 | Interior Lamps |
| 28 | Not Used |
| 29 | Ignition Switch |
| 30 | Not Used |
| 31 | Right Front Heated Seat |
| 32 | Not Used |
| 33 | HVAC |
| 34 | Ignition 3 Rear |
| 35 | Anti-Lock Brake System (ABS) |
| 36 | Turn Signal / Hazard |
| 37 | HVAC Battery |
| 38 | Dimmer |
| 39 | Fuel Pump |
| 40 | Parking Lamp |
| 41 | Ignition 1 |
| 42 | Rear Fog Lamp |
| 43 | Not Used |
| 44 | Park |
| 45 | Reverse |
| 46 | Retained Accessory Power (RAP) |
| 47 | Fuel Tank Door Lock |
| 48 | Not Used |
| 49 | Ignition 3 |
| 50 | Fuel Tank Door Release |
| 51 | Interior Lamps |
| 52 | Trunk Release |
| 53 | Front Courtesy Lamps |
| 54 | Not Used |
| 55 | Electronic Level Control (ELC) |
| 56 | Power Seats |
| 57 | Power Windows |
| 58 | Cigar |
| 59 | Rear Defogger |
| 60 | Not Used |
| 61 | Rear Defog |
| 62 | Not Used |
| 63 | Audio Amplifier |
| 64 | Electronic Level Control (ELC) |
| 65 | Cigar |
| 66 | Not Used |
| 67 | Not Used |
| 68 | Not Used |
| 69 | Not Used |
| 70 | Not Used |
| 71 | Not Used |
| 72 | Not Used |
| 73 | Not Used |
| 74 | Not Used |
| 75 | Fuse Puller |
2002
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | Not Used |
| 2 | Accessory |
| 3 | Windshield Wipers |
| 4 | Not Used |
| 5 | Left Low-Beam Headlamp |
| 6 | Right Low-Beam Headlamp |
| 7 | Instrument Panel |
| 8 | Powertrain Control Module Battery |
| 9 | Right High-Beam Headlamp |
| 10 | Left High-Beam Headlamp |
| 11 | Ignition 1 |
| 12 | Not Used |
| 13 | Transaxle |
| 14 | Cruise Control |
| 15 | Direct Ignition System |
| 16 | Injector Bank #2 |
| 17 | Not Used |
| 18 | Not Used |
| 19 | Powertrain Control Module Ignition |
| 20 | Oxygen Sensor |
| 21 | Injector Bank #1 |
| 22 | Auxiliary Power |
| 23 | Cigarette Lighter |
| 24 | Fog Lamps / Daytime Running Lamps |
| 25 | Horn |
| 26 | Air Conditioner Clutch |
| 27 | High-Beam Headlamp |
| 28 | Low-Beam Headlamp |
| 29 | Fog Lamps |
| 30 | Daytime Running Lamps |
| 31 | Horn |
| 32 | Air Conditioner Clutch |
| 33 | HVAC Solenoid |
| 34 | Accessory |
| 35 | Air Pump |
| 36 | Starter 1 |
| 37 | Cooling Fan 2 |
| 38 | Ignition 1 |
| 39 | Cooling Fan Series / Parallel |
| 40 | Cooling Fan 1 |
| 41 | Starter |
| 42 | A.I.R. |
| 43 | Empty |
| 44 | ABS |
| 45 | Not Used |
| 46 | Cooling Fan 2 |
| 47 | Cooling Fan 1 |
| 48 | Spare |
| 49 | Spare |
| 50 | Spare |
| 51 | Spare |
| 52 | Spare |
| 53 | Fuse Puller |
Rear Underseat Fuse Block
| № | Usage |
|---|---|
| 1 | Fuel Pump |
| 2 | HVAC Blower |
| 3 | Memory |
| 4 | Assembly Line Diagnostic Link |
| 5 | Rear Fog Lamps |
| 6 | Compact Disc (CD) |
| 7 | Driver’s Door Module |
| 8 | Air Bag System (SIR) |
| 9 | Not Used |
| 10 | Right Parking Lamp |
| 11 | Vent Solenoid |
| 12 | Ignition 1 |
| 13 | Left Parking Lamp |
| 14 | Dimmer |
| 15 | Not Used |
| 16 | Left Front Heated Seat |
| 17 | Not Used |
| 18 | Rear Door Module |
| 19 | Stoplamp |
| 20 | Park / Reverse |
| 21 | Audio |
| 22 | Retained Accessory Power (RAP) |
| 23 | Not Used |
| 24 | Not Used |
| 25 | Passenger Door Module |
| 26 | Body |
| 27 | Interior Lamps |
| 28 | Not Used |
| 29 | Ignition Switch |
| 30 | Instrument Panel |
| 31 | Right Front Heated Seat |
| 32 | Not Used |
| 33 | HVAC |
| 34 | Ignition 3 Rear |
| 35 | Anti-Lock Brake System (ABS) |
| 36 | Turn Signal / Hazard |
| 37 | HVAC Battery |
| 38 | Dimmer |
| 39 | Fuel Pump |
| 40 | Parking Lamp |
| 41 | Ignition 1 |
| 42 | Rear Fog Lamp |
| 43 | Not Used |
| 44 | Park |
| 45 | Reverse |
| 46 | Retained Accessory Power (RAP) |
| 47 | Fuel Tank Door Lock |
| 48 | Not Used |
| 49 | Ignition 3 |
| 50 | Fuel Tank Door Release |
| 51 | Interior Lamps |
| 52 | Trunk Release |
| 53 | Front Courtesy Lamps |
| 54 | Not Used |
| 55 | Electronic Level Control (ELC) |
| 56 | Power Seats |
| 57 | Power Windows |
| 58 | Cigar |
| 59 | Rear Defogger |
| 60 | Not Used |
| 61 | Rear Defog |
| 62 | Not Used |
| 63 | Audio Amplifier |
| 64 | Electronic Level Control (ELC) |
| 65 | Cigar |
| 66 | Not Used |
| 67 | Not Used |
| 68 | Not Used |
| 69 | Not Used |
| 70 | Spare |
| 71 | Spare |
| 72 | Spare |
| 73 | Spare |
| 74 | Spare |
| 75 | Fuse Puller |
2003
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | Not Used |
| 2 | Accessory |
| 3 | Windshield Wipers |
| 4 | Not Used |
| 5 | Left Low-Beam Headlamp |
| 6 | Right Low-Beam Headlamp |
| 7 | Instrument Panel |
| 8 | Powertrain Control Module Battery |
| 9 | Right High-Beam Headlamp |
| 10 | Left High-Beam Headlamp |
| 11 | Ignition 1 |
| 12 | Not Used |
| 13 | Transaxle |
| 14 | Cruise Control |
| 15 | Direct Ignition System |
| 16 | Injector Bank #2 |
| 17 | Not Used |
| 18 | Not Used |
| 19 | Powertrain Control Module Ignition |
| 20 | Oxygen Sensor |
| 21 | Injector Bank #1 |
| 22 | Auxiliary Power |
| 23 | Cigarette Lighter |
| 24 | Fog Lamps / Daytime Running Lamps |
| 25 | Horn |
| 26 | Air Conditioner Clutch |
| 27 | High-Beam Headlamp |
| 28 | Low-Beam Headlamp |
| 29 | Fog Lamps |
| 30 | Daytime Running Lamps |
| 31 | Horn |
| 32 | Air Conditioner Clutch |
| 33 | HVAC Solenoid |
| 34 | Accessory |
| 35 | Not Used |
| 36 | Starter 1 |
| 37 | Cooling Fan 1 |
| 38 | Ignition 1 |
| 39 | Cooling Fan Series / Parallel |
| 40 | Cooling Fan 2 |
| 41 | Starter |
| 42 | Not Used |
| 43 | Empty |
| 44 | ABS |
| 45 | Not Used |
| 46 | Cooling Fan 1 |
| 47 | Cooling Fan 2 |
| 48 | Spare |
| 49 | Spare |
| 50 | Spare |
| 51 | Spare |
| 52 | Spare |
| 53 | Fuse Puller |
Rear Underseat Fuse Block
| № | Usage |
|---|---|
| 1 | Fuel Pump |
| 2 | HVAC Blower |
| 3 | Memory |
| 4 | Assembly Line Diagnostic Link |
| 5 | Not Used |
| 6 | Compact Disc (CD) |
| 7 | Driver’s Door Module |
| 8 | Air Bag System (SIR) |
| 9 | Not Used |
| 10 | Right Parking Lamp |
| 11 | Vent Solenoid |
| 12 | Ignition 1 |
| 13 | Left Parking Lamp |
| 14 | Dimmer |
| 15 | Satellite Digital Radio |
| 16 | Left Front Heated Seat |
| 17 | Not Used |
| 18 | Rear Door Module |
| 19 | Stoplamp |
| 20 | Park / Reverse |
| 21 | Audio |
| 22 | Retained Accessory Power (RAP) |
| 23 | Not Used |
| 24 | Not Used |
| 25 | Passenger Door Module |
| 26 | Body |
| 27 | Interior Lamps |
| 28 | Not Used |
| 29 | Ignition Switch |
| 30 | Instrument Panel |
| 31 | Right Front Heated Seat |
| 32 | Not Used |
| 33 | HVAC |
| 34 | Ignition 3 Rear |
| 35 | Anti-Lock Brake System (ABS) |
| 36 | Turn Signal / Hazard |
| 37 | HVAC Battery |
| 38 | Dimmer |
| 39 | Fuel Pump |
| 40 | Parking Lamp |
| 41 | Ignition 1 |
| 42 | Rear Fog Lamp |
| 43 | Not Used |
| 44 | Park |
| 45 | Reverse |
| 46 | Retained Accessory Power (RAP) |
| 47 | Fuel Tank Door Lock |
| 48 | Not Used |
| 49 | Ignition 3 |
| 50 | Fuel Tank Door Release |
| 51 | Interior Lamps |
| 52 | Trunk Release |
| 53 | Front Courtesy Lamps |
| 54 | Not Used |
| 55 | Electronic Level Control (ELC) |
| 56 | Power Seats |
| 57 | Power Windows |
| 58 | Cigar |
| 59 | Rear Defogger |
| 60 | Not Used |
| 61 | Rear Defog |
| 62 | Not Used |
| 63 | Audio Amplifier |
| 64 | Electronic Level Control (ELC) |
| 65 | Cigar |
| 66 | Not Used |
| 67 | Not Used |
| 68 | Not Used |
| 69 | Spare |
| 70 | Spare |
| 71 | Spare |
| 72 | Spare |
| 73 | Spare |
| 74 | Spare |
| 75 | Fuse Puller |
2004
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | Not Used |
| 2 | Accessory |
| 3 | Windshield Wipers |
| 4 | Not Used |
| 5 | Left Low-Beam Headlamp |
| 6 | Right Low-Beam Headlamp |
| 7 | Instrument Panel |
| 8 | Powertrain Control Module Battery |
| 9 | Right High-Beam Headlamp |
| 10 | Left High-Beam Headlamp |
| 11 | Ignition 1 |
| 12 | Not Used |
| 13 | Transaxle |
| 14 | Cruise Control |
| 15 | Direct Ignition System |
| 16 | Injector Bank #2 |
| 17 | Not Used |
| 18 | Not Used |
| 19 | Powertrain Control Module Ignition |
| 20 | Oxygen Sensor |
| 21 | Injector Bank #1 |
| 22 | Auxiliary Power |
| 23 | Cigarette Lighter |
| 24 | Fog Lamps / Daytime Running Lamps |
| 25 | Horn |
| 26 | Air Conditioner Clutch |
| 27 | High-Beam Headlamp |
| 28 | Low-Beam Headlamp |
| 29 | Fog Lamps |
| 30 | Daytime Running Lamps |
| 31 | Horn |
| 32 | Air Conditioner Clutch |
| 33 | HVAC Solenoid |
| 34 | Accessory |
| 35 | Not Used |
| 36 | Starter 1 |
| 37 | Cooling Fan 1 |
| 38 | Ignition 1 |
| 39 | Cooling Fan Series / Parallel |
| 40 | Cooling Fan 2 |
| 41 | Starter |
| 42 | Not Used |
| 43 | Empty |
| 44 | ABS |
| 45 | Not Used |
| 46 | Cooling Fan 1 |
| 47 | Cooling Fan 2 |
| 48 | Spare |
| 49 | Spare |
| 50 | Spare |
| 51 | Spare |
| 52 | Spare |
| 53 | Fuse Puller |
Rear Underseat Fuse Block
| № | Usage |
|---|---|
| 1 | Fuel Pump |
| 2 | HVAC Blower |
| 3 | Memory |
| 4 | Assembly Line Diagnostic Link |
| 5 | Not Used |
| 6 | Compact Disc (CD) |
| 7 | Driver’s Door Module |
| 8 | Air Bag System (SIR) |
| 9 | Not Used |
| 10 | Right Parking Lamp |
| 11 | Vent Solenoid |
| 12 | Ignition 1 |
| 13 | Left Parking Lamp |
| 14 | Dimmer |
| 15 | Satellite Digital Radio |
| 16 | Left Front Heated Seat |
| 17 | Not Used |
| 18 | Rear Door Module |
| 19 | Stoplamp |
| 20 | Park / Reverse |
| 21 | Audio |
| 22 | Retained Accessory Power (RAP) |
| 23 | Not Used |
| 24 | Not Used |
| 25 | Passenger Door Module |
| 26 | Body |
| 27 | Interior Lamps |
| 28 | Not Used |
| 29 | Ignition Switch |
| 30 | Instrument Panel |
| 31 | Right Front Heated Seat |
| 32 | Not Used |
| 33 | HVAC |
| 34 | Ignition 3 Rear |
| 35 | Anti-Lock Brake System (ABS) |
| 36 | Turn Signal / Hazard |
| 37 | HVAC Battery |
| 38 | Dimmer |
| 39 | Fuel Pump |
| 40 | Parking Lamp |
| 41 | Ignition 1 |
| 42 | Rear Fog Lamp |
| 43 | Not Used |
| 44 | Park |
| 45 | Reverse |
| 46 | Retained Accessory Power (RAP) |
| 47 | Fuel Tank Door Lock |
| 48 | Not Used |
| 49 | Ignition 3 |
| 50 | Fuel Tank Door Release |
| 51 | Interior Lamps |
| 52 | Trunk Release |
| 53 | Front Courtesy Lamps |
| 54 | Not Used |
| 55 | Electronic Level Control (ELC) |
| 56 | Power Seats |
| 57 | Power Windows |
| 58 | Cigar |
| 59 | Rear Defogger |
| 60 | Not Used |
| 61 | Rear Defog |
| 62 | Not Used |
| 63 | Audio Amplifier |
| 64 | Electronic Level Control (ELC) |
| 65 | Cigar |
| 66 | Not Used |
| 67 | Not Used |
| 68 | Not Used |
| 69 | Spare |
| 70 | Spare |
| 71 | Spare |
| 72 | Spare |
| 73 | Spare |
| 74 | Spare |
| 75 | Fuse Puller |
2005
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | Not Used |
| 2 | Accessory |
| 3 | Windshield Wipers |
| 4 | Not Used |
| 5 | Left Low-Beam Headlamp |
| 6 | Right Low-Beam Headlamp |
| 7 | Instrument Panel |
| 8 | Powertrain Control Module Battery |
| 9 | Right High-Beam Headlamp |
| 10 | Left High-Beam Headlamp |
| 11 | Ignition 1 |
| 12 | Not Used |
| 13 | Transaxle |
| 14 | Cruise Control |
| 15 | Direct Ignition System |
| 16 | Injector Bank #2 |
| 17 | Not Used |
| 18 | Not Used |
| 19 | Powertrain Control Module Ignition |
| 20 | Oxygen Sensor |
| 21 | Injector Bank #1 |
| 22 | Auxiliary Power |
| 23 | Cigarette Lighter |
| 24 | Fog Lamps / Daytime Running Lamps |
| 25 | Horn |
| 26 | Air Conditioner Clutch |
| 27 | High-Beam Headlamp |
| 28 | Low-Beam Headlamp |
| 29 | Fog Lamps |
| 30 | Daytime Running Lamps |
| 31 | Horn |
| 32 | Air Conditioner Clutch |
| 33 | HVAC Solenoid |
| 34 | Accessory |
| 35 | Not Used |
| 36 | Starter 1 |
| 37 | Cooling Fan 1 |
| 38 | Ignition 1 |
| 39 | Cooling Fan Series / Parallel |
| 40 | Cooling Fan 2 |
| 41 | Starter |
| 42 | Not Used |
| 43 | Empty |
| 44 | ABS |
| 45 | Not Used |
| 46 | Cooling Fan 1 |
| 47 | Cooling Fan 2 |
| 48 | Spare |
| 49 | Spare |
| 50 | Spare |
| 51 | Spare |
| 52 | Spare |
| 53 | Fuse Puller |
Rear Underseat Fuse Block
| № | Usage |
|---|---|
| 1 | Fuel Pump |
| 2 | HVAC Blower |
| 3 | Memory |
| 4 | Assembly Line Diagnostic Link |
| 5 | Not Used |
| 6 | Compact Disc (CD) |
| 7 | Driver’s Door Module |
| 8 | Air Bag System (SIR) |
| 9 | Not Used |
| 10 | Right Parking Lamp |
| 11 | Vent Solenoid |
| 12 | Ignition 1 |
| 13 | Left Parking Lamp |
| 14 | Dimmer |
| 15 | Satellite Digital Radio |
| 16 | Left Front Heated Seat |
| 17 | Not Used |
| 18 | Rear Door Module |
| 19 | Stoplamp |
| 20 | Park / Reverse |
| 21 | Audio |
| 22 | Retained Accessory Power (RAP) |
| 23 | Not Used |
| 24 | Not Used |
| 25 | Passenger Door Module |
| 26 | Body |
| 27 | Interior Lamps |
| 28 | Not Used |
| 29 | Ignition Switch |
| 30 | Instrument Panel |
| 31 | Right Front Heated Seat |
| 32 | Not Used |
| 33 | HVAC |
| 34 | Ignition 3 Rear |
| 35 | Anti-Lock Brake System (ABS) |
| 36 | Turn Signal / Hazard |
| 37 | HVAC Battery |
| 38 | Dimmer |
| 39 | Fuel Pump |
| 40 | Parking Lamp |
| 41 | Ignition 1 |
| 42 | Rear Fog Lamp |
| 43 | Not Used |
| 44 | Park |
| 45 | Reverse |
| 46 | Retained Accessory Power (RAP) |
| 47 | Fuel Tank Door Lock |
| 48 | Not Used |
| 49 | Ignition 3 |
| 50 | Fuel Tank Door Release |
| 51 | Interior Lamps |
| 52 | Trunk Release |
| 53 | Front Courtesy Lamps |
| 54 | Not Used |
| 55 | Electronic Level Control (ELC) |
| 56 | Power Seats |
| 57 | Power Windows |
| 58 | Not Used |
| 59 | Rear Defogger |
| 60 | Not Used |
| 61 | Rear Defog |
| 62 | Not Used |
| 63 | Audio Amplifier |
| 64 | Electronic Level Control (ELC) |
| 65 | Not Used |
| 66 | Not Used |
| 67 | Not Used |
| 68 | Not Used |
| 69 | Spare |
| 70 | Spare |
| 71 | Spare |
| 72 | Spare |
| 73 | Spare |
| 74 | Spare |
| 75 | Fuse Puller |