Buick LaCrosse (2005 – 2007) – fuse box diagram
Year of production: 2005, 2006, 2007
Instrument Panel Fuse Block
The instrument panel fuse block is located on the passenger side of the instrument panel.
Fuses | Usage |
DR/LCK TRUNK | Door Locks, Trunk |
RFA/MOD | Remote Keyless Entry |
PRK/SWTCH | Ignition Key Lock |
CLSTR | Cluster |
STR/WHL/ ILLUM | Steering Wheel Controls Illumination |
ONSTAR/ALDL | OnStar®, Data Link |
INT/ILLUM | Interior Lamps |
PWR/SEAT | Power Seat |
S/ROOF | Sunroof |
CNSTR | Canister Vent |
HVAC | Climate Control System |
HAZRD | Turn Signal, Hazard |
PRK/LAMP | Park Lamps |
CHMSL/BKUP | Center-High-Mounted Stoplamp/Back-up Lamps |
PWR/MIR | Power Mirrors |
CRUISE | Cruise Control |
RDO/AMP | Radio, Amplifier |
HTD/SEAT | Heated Seats |
HTD/MIR | Heated Mirrors |
PWR/WNDW | Power Window |
Relays | Usage |
RAP | Retained Accessory Power |
PRK/LAMP | Park Lamp Relay |
R/DEFOG | Rear Defogger Relay |
Underhood Fuse Block
Some fuses and relays are located in the underhood fuse block on the passenger side of the vehicle in the engine compartment.
Mini Fuses | Usage |
1 | Driver Side High-Beam |
2 | Passenger Side High-Beam |
3 | Driver Side Low-Beam |
4 | Passenger Side Low-Beam |
5 | Windshield Wiper |
6 | Washer/Regulated Voltage Control |
7 | Fog Lamps |
8 | Transmission Control Module |
9 | Supplemental Inflatable Restraint |
10 | Auxiliary Power |
11 | Horn |
12 | Emission |
13 | Air Conditioner Clutch |
14 | Oxygen Sensor |
15 | Powertrain Control Module |
16 | Powertrain Control Module, Electronic Throttle Control |
17 | Electronic Throttle Control |
18 | Display |
19 | Antilock Brake Solenoid |
20 | Fuel Injector |
21 | Transmission Solenoid |
22 | Fuel Pump |
23 | Antilock Brake System |
24 | Ignition |
J-Style fuse | Usage |
25 | Air Pump |
26 | Battery Main 1 |
27 | Battery Main 2 |
28 | Battery Main 3 |
29 | Fan 1 |
30 | Battery Main 4 |
31 | Antilock Brake System Motor |
32 | Fan 2 |
33 | Starter |
Micro-Relays | Usage |
34 | Headlamp High-Beam |
35 | Headlamp Driver Module |
36 | Fog Lamp |
37 | Ignition 1 |
38 | Air Conditioning Compressor |
39 | Horn |
40 | Powertrain |
41 | Fuel Pump |
Mini-Relays | Usage |
42 | Fan 1 |
43 | Fan 3 |
44 | Windshield Wiper High |
45 | Windshield Wiper |
46 | Fan 2 |
48 | Crank |
Spare fuses | Usage |
49 | Spare |
50 | Spare |
51 | Spare |
52 | Blank |
53 | Blank |
54 | Blank |
Fuse Puller | Usage |
55 | Fuse Puller |
Diodes | Usage |
Air Conditioner Compressor Clutch Diode |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.