Buick LeSabre (4G; 2000-2005) fuses and relays

This material discusses in detail the fuse diagrams of the Buick LeSabre (Series 4G; eight generation): 2000, 2001, 2002, 2003, 2004, 2005 release.

Fuse #23 in the engine compartment is responsible for the cigarette lighter and 12V power socket.

In the engine compartment


Located on the left side of the engine bay, behind the plastic cover.


Access example.

Diagram
No. Description
Relays
27 Headlamp High-Beam
28 Headlamp Low-Beam
29 Fog Lamps Relay
30 Daytime Running Lamps (DRL)
31 Horn Relay
32 Air Conditioner Clutch
33 HVAC Solenoid
34 Accessory Relay
35 Air Pump (2000-2002)
Empty (2003-2005)
36 Starter #1
37 Cooling Fan #1
38 Ignition #1
39 Cooling Fan Series/Parallel
40 Cooling Fan #2
Fuses
1 Empty
2 Accessory
3 Windshield Wipers
4 Empty
5 Low-Beam Headlamp (Left side)
6 Low-Beam Headlamp (Right side)
7 Instrument Panel
8 Powertrain Control Module Battery
9 High-Beam Headlamp (Right side)
10 High-Beam Headlamp (Left side)
11 Ignition #1
12 Empty
13 Transaxle
14 Cruise Control System
15 Direct Ignition System
16 Injector Bank #2
17 Empty
18 Empty
19 Powertrain Control Module Ignition
20 Oxygen Sensor
21 Injector Bank #1
22 Auxiliary Power
23 Buick LeSabre Cigarette Lighter Fuse
24
  • Fog Lamps
  • Daytime Running Lamps (DRL)
25 Horn
26 Air Conditioner Clutch
41 Circuit Breaker: Starter
42 A.I.R  (2000-2002)
Empty  (2003-2005)
43 Empty
44 ABS System
45 Empty
46 Cooling Fan #1
47 Cooling Fan #2
48-52 Reserve
53 Puller Tool

In the passenger compartment


Fuse box located under the rear seat.


For access remove the seat and open the plastice cover.


General view of the fuse box.

Diagram
No. Description
Relays
39 Fuel Pump Relay
40 Parking Lamp
41 Ignition #1
42 Rear Fog Lamp
43 Reserve
44 Park
45 Reverse
46 Retained Accessory Power (RAP)
47 Fuel Tank Door Lock
48 Reserve
49 Ignition #3
50 Fuel Tank Door Release
51 Interior Lamps
52 Trunk Release
53 Front Courtesy Lamps
54 Reserve
55 Electronic Level Control Unit (ELC)
58 Cigar Lighter Relay (2000-2004)
Reserve (2005)
59 Rear Defogger Relay
Fuses
1 Buick LeSabre Fuel Pump Fuse
2 HVAC Blower
3 Memory
4 Assembly Line Diagnostic Link
5 Rear Fog Lamps (2000-2002)
Reserve (2003-2005)
6 Compact Disc (CD Module)
7 Driver’s Door Module
8 Air Bag System (SIR)
9 Reserve
10 Parking Lamp (Right side)
11 Vent Solenoid
12 Ignition #1
13 Parking Lamp (Left side)
14 Dimmer
15 Reserve (2000-2002)
Satellite Digital Radio (2003-2005)
16 Left Front Seat Heater
17 Reserve
18 Rear Door Module
19 Stop lamp
20 Park/Reverse
21 Audio system
22 Retained Accessory Power (RAP)
23 Reserve
24 Reserve
25 Passenger Door Module
26 Body
27 Interior Lamps
28 Reserve
29 Ignition Switch
30 Instrument Panel
31 Right Front Heated Seat
32 Reserve
33 HVAC
34 Ignition 3 Rear
35 Anti-Lock Brake System (ABS)
36 Turn Signal/Hazard
37 HVAC Battery
38 Dimmer
56  Power Seats (Circuit Breaker)
57 Power Windows (Circuit Breaker)
60 Reserve
61 Rear Defog
62 Reserve
63 Audio Amp
64 Electronic Level Control (ELC)
65 Cigar fuse (2000-2004)
Reserve (2005)
66 Reserve
67 Reserve
68 Reserve
69-74 Reserve
75 Puller Tool
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