Buick LaCrosse (2010-2016) – fuses diagram

Passenger compartment fuse box

Number A Function
1 2 Steering wheel control switch
2 15 Body Control Module (BCM)
3 15 Body Control Module (BCM)
4 15 Audio system
5 7.5 Vehicle communication interface module (VCIM)
6 20 Accessory power socket (center console 1)
7 20 Accessory power socket (center console 2)
8 15 Body Control Module (BCM)
9 15 Body Control Module (BCM)
10 30 Body control module (BCM)
11 40 HVAC control module
12 25 Circuit breaker: Passenger seat
13 25 Circuit breaker: Driver’s seat, seat memory control module
14 7.5 Data link connector
15 10 Inflatable restraint sensors and diagnostic modules (SDM) module
16 10 Rear compartment latch
17 10 HVAC control module
18 25 Audio system
19 10 Head Up Display (HUD), information display module, media player interface module, radio/HVAC controls
20 5 Inflatable passenger restraint system (PPS) module
21 5 Instrument panel cluster (IPC)
22 2 Ignition switch
23 15 Body Control Module (BCM)
24 15 Body Control Module (BCM)
25
26 30 AC/DC accessory power control module
Relay
R1 Accessories
R2
R3 Rear compartment rear cover unlocking

Engine compartment fuse box

Number A Function
1 15 Transmission control solenoid valve assembly
2 5 Engine control module (ECM)
3 10 ’14: A/C compressor clutch
4
5 5 Engine control module (ECM)
6 30 Windshield wiper motor
7
8 15 3.0L (LF1), 3.6L (LLT, LFX): Ignition coils, engine control module (ECM)
9 15 3.0L (LF1), 3.6L (LLT, LFX), 2.4L (HATCH): Ignition coils, engine control module (ECM)
10 20 Engine control module (ECM)
11 10 3.0L (LF1), 3.6L (LLT, LFX): heated oxygen sensors
10 3.6L (LFX): heated oxygen sensors, mass air flow (MAF) sensor, inlet air temperature (IAT) sensor, fuel composition sensor
12 30 Starting engine
13 7.5 Fuel flow control module in fuel pump, solenoid valve control coil assembly in gearbox
14 5 2.4L (LUK-hybrid): Heating medium pump
15 10 2.4L (LUK – hybrid): Starter/generator control module
16 7.5 3.6L (LLT): Mass air flow sensor (MAF) Intake air temperature sensor/sensor (IAT)
17 5 Inflatable containment sensor and diagnostic module (SDM)
18
19
20
21 30 Window switch (left rear/right rear)
22 30 Sunroof control module, sun visor motor module
23 10 Power steering control module
7.5 2.4L (LUK – hybrid): Hybrid/V Battery pack
24 30 „14: Window switch (left front/right front)
25
26 60 ABS
27 30 Parking brake control module
28 40 Rear window defogger
29 15 Seat lumbar adjustment switch – driver
30 15 2.4L (LUK – hybrid): Hybrid/V battery cooling fan
31
32 15 Body Control Module (BCM)
33 25 Heated seat control module
25 Seat memory module
34 25 ABS
35 30 Audio amplifier
36 10 Adaptive front lighting (AFL)
37 10 Left headlight (high beam), high beam solenoid actuator (right)
38 10 Left headlight (high beam), high beam solenoid actuator (left)
39
40
41 20 Brake master cylinder motor
42 30 Cooling fan motor (right)
43
44 30 2.4L (LUK – hybrid): Transmission oil pump
45 30 Cooling fan motor (left)
46 10 Cooling fan low speed relay, cooling fan high speed relay Left high speed relay
47 10 2.4L (LAF), 3.0L (LF1), 2.4L (LUK): heated oxygen sensors, mass air flow (MAF) sensor, inlet air temperature (IAT) sensor
10 3.6L (LLT): Camshaft position actuators (CMP)
10 3.6L (LFX): Heated oxygen sensor, multifunctional intake air sensor, solenoid valves for evaporative emissions purge
48 15 Front fog lights
49 15 Right headlight (low beam)
50 15 Left headlight (low light)
51 15 Horn
52 5 Instrument panel cluster (IPC)
53 10 Air quality sensor, brake booster vacuum switch, interior rearview mirror, rearview camera, active shutter air grille actuator
54 5 HVAC control module
55 7.5 External rear view mirror switch, window switch (driver/passenger side), garage door opener
56 15 Windshield washer fluid pump
57
58
59 50 Secondary air injection pump
60 7.5 Heated mirror
61
62 10 Evaporative emission (EVAP) Canister Vent coil (EVAP) Solenoid valve
63
64 5 Headlight control module
65
66 15 Secondary air injection pressure sensor
67 20 Fuel pump fuel flow control module
68
69 5 Body Control Module (BCM)
70 5 Side object sensor (left/right), rear parking assist control module
71
Relay
R1 A/C compressor clutch
R2 Starter
R3
R4 Front wiper (speed control)
R5 Front wiper (On/Off)
R6 2.4L (LUK -Hybrid): Heating medium pump
R7 Engine control module (ECM)
R8
R9 Cooling fan on the right side (high speed)
R10 Cooling fan (low speed)
R11 2.4L (LUK-hybrid): Transmission oil pump
R12
R13 Cooling Left fan (high speed)
R14 Low beam
R15 Ignition
R16 Secondary air injection pump
R17 Rear window defogger
Relay (unserviceable)
R18 Horn
R19 Windshield washer pump
R20 Front fog light
R21 Driving lights
R22 Door locks
R23 2.4L (LUK – hybrid): Starter/generator control module

Switching block fuse

Number A Function
1 100 Fuse block (instrument panel)
2 100 Fuse block (instrument panel)
3 100 Fuse block (rear left)
4 100 Fuse block (rear left)
5 250 Fuse block (under the hood)
6 300 Starting motor