2005-2009-Buick-LaCrosse-fuse-box-diagram-carsfuse.com

2005-2009 Buick LaCrosse fuse box diagram

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This article focuses on the first-generation Buick LaCrosse, produced from 2005 to 2009. You’ll find fuse box diagrams for each model year, details on where the fuse panels are located in the car, and information on the function of each fuse and relay.

Engine compartment

(3.6L & 3.8L V6 engines)

2005-2009-Buick-LaCrosse-engine-compartment-01-fuse-box-diagram-carsfuse.com
№Description
Mini Fuses
1Driver Side High-Beam
2Passenger Side High-Beam
3Driver Side Low-Beam
4Passenger Side Low-Beam
5Windshield Wiper
6Washer/Regulated Voltage Control
7Fog Lamps
8Transmission Control Module
9Supplemental Inflatable Restraint
10Auxiliary Power
11Horn
12Emission
13Air Conditioner Clutch
14Oxygen Sensor
15Powertrain Control Module
16Powertrain Control Module, Electronic Throttle Control
17Electronic Throttle Control
18Display
19Antilock Brake Solenoid
20Fuel Injector
21Transmission Solenoid
22Fuel Pump
23Antilock Brake System
24Ignition
J-Style fuse
25Air Pump
26Battery Main 1
27Battery Main 2
28Battery Main 3
29Fan 1
30Battery Main 4
31Antilock Brake System Motor
32Fan 2
33Starter
Micro-Relays
34Headlamp High-Beam
35Headlamp Driver Module
36Fog Lamp
37Ignition 1
38Air Conditioning Compressor
39Horn
40Powertrain
41Fuel Pump
Mini-Relays
42Fan 1
43Fan 3
44Windshield Wiper High
45Windshield Wiper
46Fan 2
48Crank
49-54Spare fuses
55Fuse Puller
diodeAir Conditioner Compressor Clutch Diode

(5.3L V8 Engine)

2005-2009-Buick-LaCrosse-engine-compartment-02-fuse-box-diagram-carsfuse.com
NameDescription
HVACClimate Control System
FUEL/PUMPFuel Pump
AIRBAG/ DISPLAYAirbag, Display
COMPASSCompass
ABSAntilock Brake System
ETC/ECMElectronic Throttle Control, Engine Control Module
A/C CMPRSRAir Conditioning Compressor
INJ 1Injectors 1
ECM/TCMEngine Control Module, Transmission Control Module
TRANSTransmission
EMISSIONS1Emissions 1
ABS SOLAntilock Brake Solenoid
ECM IGNEngine Control Module, Ignition
INJ 2Injectors 2
EMISSIONS2Emissions 2
WPRWindshield Wipers
AUX PWRAuxiliary Power
WSW/RVCWindshield Washer, Regulated Voltage Control
LT LO BEAMDriver Side Low-Beam Headlamp
RT LO BEAMPassenger Side Low-Beam Headlamp
FOG LAMPSFog Lamps
LT HI BEAMDriver Side High-Beam Headlamp
HORNHorn
RT HI BEAMPassenger Side High-Beam Headlamp
BATT 4Battery 4
BATT 1Battery 1
STRTRStarter
ABS MTRAntilock Brake System Motor
BATT 3Battery 3
BATT 2Battery 2
FAN 2Cooling Fan 2
FAN 1Cooling Fan 1
Relays
FUEL/PUMPFuel Pump
A/C CMPRSRAir Conditioning Compressor
PWR/TRNPowertrain
STRTRStarter
FAN 1Cooling Fan 1
FAN 2Cooling Fan 2
FAN 3Cooling Fan 3
HDMHeadlamp Driver Module

Passenger compartment fuse box

2005-2009-Buick-LaCrosse-passenger-compartment-fuse-box-diagram-carsfuse.com
NameDescription
DR/LCK TRUNKDoor Locks, Trunk
RFA/MODRemote Keyless Entry
PRK/SWTCHIgnition Key Lock
CLSTRCluster
STR/WHL/ ILLUMSteering Wheel Controls Illumination
ONSTAR/ALDLOnStar®, Data Link
INT/ILLUMInterior Lamps
PWR/SEATPower Seat
S/ROOFSunroof
CNSTRCanister Vent
HVACClimate Control System
HAZRDTurn Signal, Hazard
PRK/LAMPPark Lamps
CHMSL/BKUPCenter-High-Mounted Stoplamp/Back-up Lamps
PWR/MIRPower Mirrors
CRUISECruise Control
RDO/AMPRadio, Amplifier
HTD/SEATHeated Seats
HTD/MIRHeated Mirrors
PWR/WNDWPower Window
Relays
RAPRetained Accessory Power
PRK/LAMPPark Lamp Relay
R/DEFOGRear Defogger Relay
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Tom Smith

Tom Smith is a passionate car mechanic and automotive enthusiast, specializing in the intricate world of car fuse boxes. With years of hands-on experience under the hood, he has earned a reputation as a reliable expert in his field. As the founder and content creator of the popular blog website 'carsfuse.com,' Tom has dedicated himself to sharing his extensive knowledge of car fuse boxes and electrical systems with the world.

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