Buick LaCrosse (2009) – fuse box diagram

Posted on 15 January 20171 November 2018 by admin

Buick LaCrosse (2009) – fuse box diagram

Year of production: 2009

Instrument Panel Fuse Block

The instrument panel fuse block is located on the passenger side of the instrument panel.

Buick LaCrosse - fuse box - instrument panel — Buick LaCrosse – fuse box – instrument panel

Fuses	Usage
CHMSL/BKUP	Center High-Mounted Stoplamp, Back-up Lamp
CLSTR	Cluster
CNSTR	Canister Vent
CRUISE	Cruise Control
DR/LCK TRUNK	Door Locks, Trunk
HAZRD	Turn Signal, Hazard
HTD/MIR	Heated Mirrors
HTD/SEAT	Heated Seats
HVAC	Climate Control System
INT/ILLUM	Interior Lamps
ONSTAR/ALDL	OnStar®, Data Link
PRK/LAMP	Park Lamps
PRK/SWTCH	Ignition Key Lock
PWR/MIR	Power Mirrors
PWR/SEAT	Power Seats
PWR/WNDW	Power Window
RDO/AMP	Radio, Amplifie
RFA/MOD	Remote Keyless Entry
S/ROOF	Sunroof
STR/WHL/ ILLUM	Steering Wheel Controls Illumination

Relays	Usage
RAP	Retained Accessory Power
PRK/LAMP	Park Lamp Relay
R/DEFOG	Rear Defogger Relay

Underhood Fuse Block

3.8L V6 engines

Buick LaCrosse - fuse box - engine compartment (3.8L V6 engine) — Buick LaCrosse – fuse box – engine compartment (3.8L V6 engine)

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
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
34	Antilock brake system valves

Mini-Relays	Usage
42	Fan 1
43	Fan 3
44	Windshield Wiper High
45	Windshield Wiper
46	Fan 2
48	Crank

Fuse Puller	Usage
55	Fuse Puller

Diodes	Usage
	Air Conditioner Compressor Clutch Diode

5.3L V8 Engine

Buick LaCrosse - fuse box - engine compartment (5.8L V8 engine) — Buick LaCrosse – fuse box – engine compartment (5.8L V8 engine)

Fuses	Usage
A/C CMPRSR	Air Conditioning Compressor
ABS	Antilock Brake System (ABS)
ABS MTR	ABS Motor
ABS SOL	ABS Solenoid
AIRBAG/ DISPLAY	Airbag, Display
AUX PWR	Auxiliary Power
BATT 1	Battery 1
BATT 2	Battery 2
BATT 3	Battery 3
BATT 4	Battery 4
COMPASS	Compass
ECM IGN	Engine Control Module (ECM), Ignition
ECM/TCM	ECM, Transmission Control Module (TCM)
EMISSIONS 1	Emissions 1
EMISSIONS 2	Emissions 2
ETC/ECM	Electronic Throttle Control, ECM
FAN 1	Cooling Fan 1
FAN 2	Cooling Fan 2
FOGLAMPS	Fog Lamps
FUEL/PUMP	Fuel Pump
HORN	Horn
HVAC	Climate Control System
INJ 1	Injectors 1
INJ 2	Injectors 2
LT HI BEAM	Driver Side High-Beam Headlamps
LT LO BEAM	Driver Side Low-Beam Headlamp
RT HI BEAM	Passenger Side High-Beam Headlamp
RT LO BEAM	Passenger Side Low-Beam Headlamp
STRTR	Starter
TRANS	Transmission
WPR	Windshield Wipers
WSW/RVC1	Windshield Washers, Regulated Voltage Control

Relays	Usage
A/C CMPRSR	Air Conditioning Compressor
FAN 1	Cooling Fan 1
FAN 2	Cooling Fan 2
FAN 3	Cooling Fan 3
FUEL/PUMP	Fuel Pump
HDM	Headlamp Driver Module
PWR/TRN	Powertrain
STRTR	Starter

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick LaCrosse (2010) – fuse box diagram

Posted on 15 January 201725 October 2018 by admin

Buick LaCrosse (2010) – fuse box diagram

Year of production: 2010

Engine Compartment Fuse Block

Buick LaCrosse - fuse box - engine compartment — Buick LaCrosse – fuse box – engine compartment

J-Case	Usage
6	Wiper
12	Starter
21	Rear power windows
22	Sunroof
24	Front power windows
26	Antilock brake system pump
27	Electric parking brake
28	Rear window defogger
41	Brake vacuum pump
42	Cooling fan K2
45	Cooling fan K1

Mini Fuses	Usage
1	Transmission control module–battery
2	Engine control module battery
5	Engine Control Module Ignition
8	Ignition coils–even
9	Ignition coils–odd
10	Engine control module
11	Post Catalytic Converter Oxygen Sensor Heater
13	Trans Ignition/Fuel System Control Module
16	MAF
17	Airbag Module
18	SBZ Ignition
23	Variable Effort Steering
29	Power Lumbar, Left
32	Body control module
33	Heated Seat
34	Antilock brake system valves
35	Amplifier
36	AFL Ignition
37	Right high-beam
38	Left high-beam
46	Cooling fan relay
47	Pre Catalytic Converter Oxygen Sensor Heater
48	Fog lamps
49	Right High Intensity Discharge Headlamp
50	Left High Intensity Discharge Headlamp
51	Horn
52	Cluster Ignition
53	Inside Rearview Mirror, Rear Vision Camera, Vacuum Pump
54	Heating, Ventilation and Air Conditioning
55	Outside Rearview Mirror, Universal Garage Door Opener, Window Switch
56	Windshield washer
60	Heated mirror
62	Canister vent
64	AFL Battery
65	Theft‐Deterrent Horn
67	Fuel pump power module
69	Regulated voltage control sensor

Mini Relays	Usage
7	Engine control module
9	Cooling fan
13	Cooling fan
15	Run/Crank
17	Rear window defogger

Micro Relays	Usage
2	Starter
4	Wiper speed
5	Wiper control
10	Cooling fan
14	Headlamp low-beam

Instrument Panel Fuse Block

The instrument panel fuse block is in the instrument panel, on the driver side of the vehicle.

Fuses	Usage
1	Steering Wheel Controls Backlight
2	Body control module 7
3	Body Control Module 5
4	Radio
5	OnStar/Universal hands–free phone
6	Power outlet 1
7	Power outlet 2
8	Body control module 1
9	Body control module 4
10	Body control module 8
11	Front Heater Ventilation Air Conditioning/Blower
12	Passenger seat
13	Driver seat
14	Diagnostic link connector
15	Airbag
16	Trunk
17	Heater Ventilation Air Conditioning Controller
18	Radio, OnStar, Universal Hands‐Free Phone
19	Display
20	Automatic Occupant Sensing
21	Instrument Panel Cluster
22	Discrete Logic Ignition Switch
23	Body control module 3
24	Body control module 2
25	Rear Heater Ventilation Air Conditioning/Blower
26	AC DC inverter

Relays	Usage
R1	Trunk relay
R2	—
R3	Power outlet relay

Rear Compartment Fuse Block

The rear compartment fuse block is located on the left side of the trunk behind a cover.

Buick LaCrosse - fuse box - rear compartment — Buick LaCrosse – fuse box – rear compartment

Mini Fuses	Usage
5	Not Used
6	Heated Steering Wheel
7	Not Used
8	Not Used
12	Not Used
15	Side Blind Zone, Ultrasonic Rear Park Assist
18	Not Used
17	Not Used
18	PEPS
19	Not Used
20	Rear Sunshade, Ventilated Seats
21	Not Used
22	Not Used
23	Not Used
24	Not Used
25	Not Used
26	Not Used
27	Not Used
28	Not Used
29	Not Used
30	Not Used
31	Electronic Suspension Control
32	Rear Seat Infotainment
33	All‐Wheel Drive

J‐Case Fuses	Usage
1	Not Used
2	Not Used
3	Not Used
4	Not Used
9	Not Used
10	Not Used
11	Not Used
13	Not Used
14	Not Used
34	Not Used
35	PEPS
36	Not Used
37	Not Used

Relays	Usage
K1	Not Used
K2	Seat Ventilation, Sunshade
K3	Heated Steering Wheel
K4	Not Used

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick LaCrosse (2011- 2012) – fuse box diagram

Posted on 14 January 201725 October 2018 by admin

Buick LaCrosse (2011 – 2012) – fuse box diagram

Year of production: 2011, 2012

Engine Compartment Fuse Block

J-Case	Usage
6	Wiper
12	Starter
21	Rear power windows
22	Sunroof
24	Front power windows
25	Rear heated seats
26	Antilock brake system pump
27	Electric parking brake
28	Rear window defogger
41	Brake vacuum pump
42	Cooling fan K2
45	Cooling fan K1

Mini Fuses	Usage
1	Transmission control module–battery
2	Engine control module battery
3	Air Conditioning Compressor Clutch
5	Engine control module/Run/Crank
7	Long range radar/ Front camera
8	Ignition coils–even (6–cylinder engine)/ Ignition coils–all (4–cylinder engine)
9	Ignition coils–odd (6–cylinder engine)
10	Engine control module–switched battery
11	Post Catalytic Converter Oxygen Sensor Heate
13	Trans Ignition/Fuel System Control Module
16	MAF
17	Airbag Module
18	SBZ Ignition
23	Variable Effort Steering
29	Power Lumbar, Left
30	Heated Seat/Right power pack cooling fan (eAssist)
32	Body control module
33	Heated Seat
34	Antilock brake system valves
35	Amplifier
36	AFL Ignition
37	Right high-beam
38	Left high-beam
46	Cooling fan relay
47	Pre Catalytic Converter Oxygen Sensor Heater
48	Fog lamps
49	Right High Intensity Discharge Headlamp
50	Left High Intensity Discharge Headlamp
51	Horn
52	Cluster Ignition
53	Inside Rearview Mirror, Rear Vision Camera, Vacuum Pump
54	Heating, Ventilation and Air Conditioning
55	Outside Rearview Mirror, Universal Garage Door Opener, Window Switch
56	Windshield washer
60	Heated mirror
62	Canister vent
64	AFL Battery
65	Theft‐Deterrent Horn
67	Fuel pump power module
69	Regulated voltage control sensor
70	Parking assist/Side blind zone

Mini Relays	Usage
7	Engine control module
9	Cooling fan
13	Cooling fan
15	Run/Crank
17	Rear window defogger

Micro Relays	Usage
2	Starter
4	Wiper speed
5	Wiper control
10	Cooling fan
14	Headlamp low-beam

Instrument Panel Fuse Block

The instrument panel fuse block is in the instrument panel, on the driver side of the vehicle.

Fuses	Usage
1	Steering Wheel Controls Backlight
2	Body control module 7
3	Body Control Module 5
4	Radio
5	OnStar/Universal hands–free phone
6	Power outlet 1
7	Power outlet 2
8	Body control module 1
9	Body control module 4
10	Body control module 8
11	Front Heater Ventilation Air Conditioning/Blower
12	Passenger seat
13	Driver seat
14	Diagnostic link connector
15	Airbag
16	Trunk
17	Heater Ventilation Air Conditioning Controller
18	Radio, OnStar, Universal Hands‐Free Phone
19	Display
20	Automatic Occupant Sensing
21	Instrument Panel Cluster
22	Discrete Logic Ignition Switch
23	Body control module 3
24	Body control module 2
25	Rear Heater Ventilation Air Conditioning/Blower
26	AC DC inverter

Relays	Usage
R1	Trunk relay
R2	—
R3	Power outlet relay

Rear Compartment Fuse Block

The rear compartment fuse block is located on the left side of the trunk behind a cover.

Mini Fuses	Usage
5	Not Used
6	Heated Steering Wheel
7	Not Used
8	Not Used
12	Not Used
15	Not Used
18	Not Used
17	Not Used
18	PEPS
19	Not Used
20	Rear Sunshade, Ventilated Seats
21	Not Used
22	Not Used
23	Not Used
24	Not Used
25	Not Used
26	Not Used
27	Not Used
28	Not Used
29	Not Used
30	Not Used
31	Electronic Suspension Control
32	Rear Seat Infotainment
33	All‐Wheel Drive

J‐Case Fuses	Usage
1	Not Used
2	Not Used
3	Not Used
4	Not Used
9	Not Used
10	Not Used
11	Not Used
13	Not Used
14	Not Used
34	Not Used
35	PEPS
36	Not Used
37	Not Used

Relays	Usage
K1	Not Used
K2	Seat Ventilation, Sunshade
K3	Heated Steering Wheel
K4	Not Used

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick LaCrosse (2013 – 2015) – fuse box diagram

Posted on 14 January 201725 October 2018 by admin

Buick LaCrosse (2013 – 2015) – fuse box diagram

Year of production: 2013, 2014, 2015

Engine Compartment Fuse Block

J-Case	Usage
6	Wiper
12	Starter
21	Rear power windows
22	Sunroof
24	Front power windows
25	Rear heated seats
26	Antilock brake system pump
27	Electric parking brake
28	Rear window defogger
41	Brake vacuum pump
42	Cooling fan K2
43	Not Used
44	Transmission auxiliary oil pump (eAssist)
45	Cooling fan K1
59	AIR pump

Mini Fuses	Usage
1	Transmission control module–battery
2	Engine control module battery
3	Air Conditioning Compressor Clutch
5	Engine control module/Run/Crank
7	Long range radar/ Front camera
8	Ignition coils–even (6–cylinder engine)/ Ignition coils–all (4–cylinder engine)
9	Ignition coils–odd (6–cylinder engine)
10	Engine control module–switched battery
11	6–cylinder Engine: post catalytic converter/O2 sensor/ Heater/Mass air flow sensor/FlexFuel sensor/Secondary air induction solenoid
13	Crank for transmission control module/Fuel pump power/Chassis control module (eAssist)
14	Cabin heater coolant pump (eAssist)/ secondary air injector/Secondary air injector with pressure sensor
15	Motor generator unit coolant pump (eAssist)
16	Run/Crank for eAssist power inverter module
17	Not Used
18	Sunshade module/ Vehicle air purification system/ Ventilated seats
20	Heated steering wheel (non eAssist)
23	Variable effort steering (if equipped) or eAssist power inverter module
29	Heated seat/Left power lumbar
30	Heated Seat/Right power pack cooling fan (eAssist)
31	AWD/Electronic suspension control
32	Body control module 6
33	Memory seat–front
34	Antilock brake system valves
35	Amplifier
36	Adaptive forward lighting (AFL) motors–battery
37	Right high-beam
38	Left high-beam
46	Cooling fan relay
47	Six Cylinder Engine: Pre Catalytic Converter Oxygen Sensor Heater, Canister Purge Solenoid. Four Cylinder Engine: Pre and Post Catalytic Converter Oxygen Sensor Heaters, Canister Purge Solenoid
48	Fog lamps
49	Right High Intensity Discharge Headlamp
51	Horn
52	Cluster Run/Crank
53	Run/Crank for: rearview mirror/Rear vision camera/Air quality sensor/Aero shutter motor
54	Run/Crank for: HVAC/Headlamp switch
55	Outside rearview mirror/Universal remote system/Front window switches
56	Windshield washer
60	Heated mirror
62	Canister vent
64	Adaptive forward lighting (AFL) module–battery
65	Not Used
66	AIR solenoid (eAssist)
67	Fuel pump power module/Chassis control module
69	Regulated voltage control sensor
70	Parking assist/Side blind zone
71	Passive entry/ Passive start

Mini Relays	Usage
7	Engine control module
9	Cooling fan
13	Cooling fan
15	Run/Crank
16	AIR pump
17	Rear window defogger

Micro Relays	Usage
1	A/C Clutch
2	Starter
4	Wiper speed
5	Wiper control
6	Cabin heater coolant pump (eAssist)/ Secondary air injector/Secondary air injector with pressure senso
10	Cooling fan
14	Headlamp low-beam

Ultra Micro Relays	Usage
11	Transmission auxiliary oil pump (eAssist)

Instrument Panel Fuse Block

The instrument panel fuse block is in the instrument panel, on the driver side of the vehicle.

Fuses	Usage
1	APO 3
2	Body control module 7
3	Steering wheel controls backlight
4	Radio/Human machine interface/ Rear auxiliary audio jack/Front auxiliary audio video jack/ Touchpad/Remote media player/Bluray remote media player
5	OnStar/Universal hands–free phone
6	Power outlet 1
7	Power outlet 2
8	Body control module 1
9	Body control module 4
10	Body control module 8
11	Front HVAC/Blower
12	Passenger seat
13	Driver seat
14	Diagnostic link connector
15	Airbag/Automatic occupant sensing
16	Trunk
17	HVAC Controller
18	Pre-fuse for fuses 4 and 5
19	Center stack displays/Head-up display/Right steering wheel control switch/Rear seat infotainment display (eAssist)/ HVAC/Center stack displays
20	Rear seat entertainment display/Rear seat audio
21	Instrument cluster
22	Discrete logic ignition switch
23	Body control module 3
24	Body control module 2
25	Rear HVAC/Blower
26	AC DC inverter

Relays	Usage
R1	Trunk relay
R2	—
R3	Power outlet relay

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick LaCrosse (2016) – fuse box diagram

Posted on 14 January 201725 October 2018 by admin

Buick LaCrosse (2016) – fuse box diagram

Year of production: 2016

Engine Compartment Fuse Block

Fuses	Usage
1	Transmission control module–battery
2	Engine control module battery
3	A/C clutch
5	Engine control module/Run/Crank
6	Wiper
7	Long range radar/ Front camera
8	Ignition coils–even (6–cylinder engine)/ Ignition coils–all (4–cylinder engine)
9	Ignition coils–odd (6–cylinder engine)
10	Engine control module–switched battery
11	6–cylinder Engine: post catalytic converter/O2 sensor/ Heater/Mass air flow sensor/FlexFuel sensor/Secondary air induction solenoid
12	Starter
13	Crank for transmission control module/Fuel pump power/Chassis control module (eAssist)
14	Cabin heater coolant pump (eAssist)/ secondary air injector/Secondary air injector with pressure sensor
15	Motor generator unit coolant pump (eAssist)
16	Run/Crank for eAssist power inverter module
17	—
18	Sunshade module/ Vehicle air purification system/ Ventilated seats
20	Heated steering wheel (non eAssist)
21	Rear power windows
22	Sunroof
23	Variable effort steering (if equipped) or eAssist power inverter module
24	Front power windows
25	Rear heated seats
26	Antilock brake system pump
27	Electric parking brake
28	Rear window defogger
29	Heated seat/Left power lumbar
30	Heated Seat/Right power pack cooling fan (eAssist)
31	AWD/Electronic suspension control
32	Body control module 6
33	Memory seat–front
34	Antilock brake system valves
35	Amplifier
36	Adaptive forward lighting (AFL) motors–battery
37	Right high-beam
38	Left high-beam
41	Brake vacuum pump
42	Cooling fan K2
43	—
44	Transmission auxiliary oil pump (eAssist)
45	Cooling fan K1
46	Cooling fan relay
47	6–cylinder engine: Pre-catalytic converter O2 sensor heater/Canister purge solenoid. 4–cylinder engine: Pre and post catalytic converter O2 sensor Heaters/ Canister purge solenoid
48	Fog lamps
49	Fog lamps
50	Left HID headlamp
51	Horn
52	Cluster Run/Crank
53	Run/Crank for: rearview mirror/Rear vision camera/Air quality sensor/Aero shutter motor
54	Run/Crank for: HVAC/Headlamp switch
55	Outside rearview mirror/Universal remote system/Front window switches
56	Windshield washer
59	AIR pump
60	Heated mirror
62	Canister vent
64	Adaptive forward lighting (AFL) module–battery
65	—
66	AIR solenoid (eAssist)
67	Fuel pump power module/Chassis control module
69	Regulated voltage control sensor
70	Parking assist/Side blind zone
71	Passive entry/ Passive start

Relays	Usage
1	A/C Clutch
2	Starter
4	Wiper speed
5	Wiper control
6	Cabin heater coolant pump (eAssist)/ Secondary air injector/Secondary air injector with pressure senso
7	Engine control module
9	Cooling fan
10	Cooling fan
11	Transmission auxiliary oil pump (eAssist)
13	Cooling fan
14	Headlamp low-beam
15	Run/Crank
16	AIR pump
17	Rear window defogger

Instrument Panel Fuse Block

The instrument panel fuse block is in the instrument panel, on the driver side of the vehicle.

Fuses	Usage
1	APO 3
2	Body control module 7
3	Steering wheel controls backlight
4	Radio/Human machine interface/ Rear auxiliary audio jack/Front auxiliary audio video jack/ Touchpad/Remote media player/Bluray remote media player
5	OnStar/Universal hands–free phone
6	Power outlet 1
7	Power outlet 2
8	Body control module 1
9	Body control module 4
10	Body control module 8
11	Front HVAC/Blower
12	Passenger seat
13	Driver seat
14	Diagnostic link connector
15	Airbag/Automatic occupant sensing
16	Trunk
17	HVAC Controller
18	Pre-fuse for fuses 4 and 5
19	Center stack displays/Head-up display/Right steering wheel control switch/Rear seat infotainment display (eAssist)/ HVAC/Center stack displays
20	Rear seat entertainment display/Rear seat audio
21	Instrument cluster
22	Discrete logic ignition switch
23	Body control module 3
24	Body control module 2
25	Rear HVAC/Blower
26	AC DC inverter

Relays	Usage
R1	Trunk relay
R2	—
R3	Power outlet relay

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick LaCrosse (2017) – fuse box diagram

Posted on 14 January 201725 October 2018 by admin

Buick LaCrosse (2017) – fuse box diagram

Year of production: 2017

Engine Compartment Fuse Block

Fuses	Usage
1	—
2	—
3	ABS pump
5	AC DC inverter
6	Rear closure
7	Left corner lamp
8	Power windows/ Rearview mirror/ Power seats
9	Engine boost
10	Semi-active damping system
11	DC DC Battery 1
12	Rear window defogger
13	Heated mirrors
14	—
15	Passive entry/ Passive start
16	Front wipers
17	Passenger power seat
18	ABS valve
19	Driver power sea
21	Sunroof
22	Right corner lamp
23	Auto headlamp leveling
24	—
26	Transmission control module/Ignition
27	Instrument panel/ Ignition
28	Electronic precision shift/Ignition
29	Rear vision camera/ Ventilation
30	Malfunction indicator lamp/Shift solenoid
32	Canister vent solenoid
33	Front heated seats
34	Rear heated seat/ Vehicle body safety module/Energy storage system fan
35	Fog lamps
36	Fuel module
38	—
39	—
40	Steering columnn lock
41	—
43	Heated steering wheel
44	Headlamp leveling/ Rear seat ventilation
45	—
46	Engine control module/Ignition
47	—
48	Engine boost/Left cooling fan
49	DC DC battery 2/AWD
50	—
51	—
52	—
53	—
54	—
55	—
56	—
57	Transmission auxiliary pump
58	TRCM
59	High-beam headlamps
60	Cooling fan
61	—
62	—
63	—
65	A/C HEV
67	—
68	—
69	Right HID low-beam headlamps
70	Left HID low-beam headlamps
72	Starter pinion
74	Starter motor
75	Engine control module
76	Powertrain – off engine
77	—
78	Horn
79	Washer pump
81	Transmission control module/ Engine control module
82	—
83	Ignition coils
84	Powertrain – on engine
85	Engine control module switch 2
86	Engine control module switch 1
87	SAI reaction pump
88	Aeroshutter
89	Headlamp washer
91	—
91	TPIM motor generator unit pump
95	Headlamp leveling
96	Fuel heater
97	—
99	Coolant pump

Relays	Usage
4	AC DC inverter
20	Rear defogger
25	Front wiper control
31	Run/Crank
37	Front wiper speed
42	Transmission auxiliary pump
64	A/C control
66	Powertrain
71	HID low-beam headlamps
73	Starter motor
80	Starter pinion
90	SAI reaction solenoid
94	Headlamp washer
98	SAI reaction pump

Instrument Panel Fuse Block

The instrument panel fuse block is in the instrument panel, on the driver side of the vehicle.

Buick LaCrosse - fuse box - instgrument panel — Buick LaCrosse – fuse box – instgrument panel

Fuses	Usage
F1	Left window
F2	Right window
F3	—
F4	HVAC blower
F5	Battery 2
F6	Electric steering column
F7	—
F8	Battery 3
F9	Engine control module/Battery
F10	Body control module 2 On/Off
F11	—
F12	—
F13	—
F14	—
F15	Transmission control module On/Off
F16	Amplifier
F17	—
F18	Battery 7
F19	—
F20	Battery 1
F21	Battery 4
F22	Battery 6
F23	Electric steering column lock
F24	Sensing and diagnostic module
F25	Diagnostic link
F26	—
F27	AC DC inverter
F28	—
F29	Body control module 8
F30	Overhead console
F31	Steering wheel control
F32	—
F33	HVAC
F34	Center gateway module
F35	Integrated chassis control module
F36	Charger
F37	Auxiliary power outlet/Cigar lighter
F38	OnStar
F39	Monitor
F40	Object detection
F41	Body control module 1 On/Off
F42	Radio
F43	Circuit breaker 1
F44	Circuit breaker 2
K1	—
K2	Retained accessory power
K3	—
K4	—
K5	Logistics

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Envision (2016 – 2017) – fuse box diagram

Posted on 13 January 201725 October 2018 by admin

Buick Envision (2016 – 2017) – fuse box diagram

Year of production: 2016, 2017

Engine Compartment Fuse Block

Buick Envision - fuse box - engine compartment — Buick Envision – fuse box – engine compartment

Fuses	Usage
F01	Starter 1
F02	Starter 1
F03	Non walk
F04	Engine control module
F05	Flex fuel
F06	–/Transmission control module
F07	—
F08	Engine control module
F09	A/C
F10	Canister vent solenoid
F11	Fuel pump
F12	Heated seats
F13	Engine coolant pump
F14	—
F15	O2 sensor
F16	Ignition coils – odd
F17	Ignition coils – even
F18	—
F19	—
F20	DC DC/Transmission
F21	Liftgate
F22	ABS
F23	Washer pump
F24	Headlamp washer
F25	—
F26	Transmission oil pump
F27	ABS
F28	—
F29	Rear window defogger
F30	Mirror defogger
F31	—
F32	Various low current functions/Circuit 39 splice
F33	—
F34	Horn
F35	—
F36	Right high-beam headlamp
F37	Left high-beam headlamp
F38	Automatic headlamp leveling
F39	Front fog lamps
F40	Transmission oil pump
F41	Passenger seat ventilation
F42	Headlamp position
F43	—
F44	Interior rearview mirror
F45	—
F46	Driver seat ventilation
F47	Electric steering column lock
F48	Rear wiper
F49	—
F50	—
F51	Right daytime running lamp
F52	Engine control module/ Transmission control module
F53	—
F54	—
F55	Front wiper
F56	—
F57	Left daytime running lamp
K01	Start/Stop
K02	A/C clutch
K03	Engine control module
K04	Wiper
K05	Start solenoid
K06	—
K07	—
K08	Transmission oil pump
K09	Wiper speed
K10	Starter
K11	Headlamp washers
K12	High-beam headlamps
K13	Daytime running lamps
K14	Run/Crank
K15	Rear window/Mirror defogger

Instrument Panel Fuse Block

The instrument panel fuse block is in the glove box.

Buick Envision - fuse box - instrument panel — Buick Envision – fuse box – instrument panel

Fuses	Usage
F1	—
F2	Front HVAC blower
F3	Power seat
F4	Lighter (China only)
F5	—
F6	Front power windows
F7	—
F8	Accessory power outlet
F9	Body control module 8
F10	Rear power windows
F11	—
F12	Sunroof
F13	Front heated seats
F14	Exterior rearview mirror
F15	Body control module 3
F16	—
F17	Body control module 6
F18	Body control module 7
F19	Data link connector
F20	SDM
F21	HVAC
F22	Liftgate release
F23	Passive entry/ Passive start
F24	OCC sensor
F25	Steering wheel controls
F26	Ignition
F27	Body control module 4
F28	Transmission control module
F29	Body control module 2
F30	USB
F31	Rear HVAC blower
F32	Body control module 1
F33	Universal remote system
F34	Parking assist
F35	OnStar
F36	Display
F37	Radio

Rear Compartment Fuse Block

The rear compartment fuse block is behind a cover on the left side of the rear compartment.

Buick Envision - fuse box - rear compartment — Buick Envision – fuse box – rear compartment

Fuses	Usage
F1	—
F2	DC AC
F3	—
F4	Passenger power seat
F5	Memory seat module
F6	—
F7	Amplifier
F8	Rear accessory power outlet
F9	Rear heated seat
F10	Logistics relay
F11	Rear HVAC
F12	Power liftgate HF sensor
F13	Parking/Trailer lamps
F14	Side blind zone alert
F15	Left parking lamp
F16	Right parking lamp
F17	Body control module 6
F18	Heated steering wheel
F19	AWD
F20	Lumbar sea
F21	Rear heated seat
F22	Rear drive control module
F23	Trailer left turn signal lamp
F24	Trailer right turn signal lamp
K1	Parking lamps
K2	—
K3	Ignition
K4	Logistics
K5	DC AC
K6	—
K7	Parking assist
K8	Right turn
K9	Left turn
K10	—

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Encore (2013 – 2015) – fuse box diagram

Posted on 13 January 201725 October 2018 by admin

Buick Encore (2013 – 2015) – fuse box diagram

Year of production: 2013, 2014, 2015

Engine Compartment Fuse Block

Buick Encore - fuse box - engine compartment — Buick Encore – fuse box – engine compartment

Mini Fuses	Usage
1	Sunroof
2	Outside Rearview Mirror Switch
3	Canister vent solenoid
4	Not used
5	Electronic brake control module valve
6	Not Used
7	Not used
8	Transmission control module battery
9	BCM Regulated Voltage Control
10	Fuel System Control Module R/C/ Headlamp Leveling
11	Rear wiper
12	Rear window defogger
13	Not used
14	Outside Rearview Mirror Heater
15	Fuel system control module battery
16	Heated seat module/ Memory module
17	Transmission Control Module R/C
18	Engine Control Module R/C
19	Fuel pump
20	Not used
21	Fan Relay (Auxiliary Fuse Block)
22	Not used
23	Ignition coil/ Injector
24	Washer pump
25	Not used
26	Canister Purge Solenoid/Water Valve Solenoid/ Oxygen Sensors – Pre and Post/Turbo Wastegate Solenoid (1.4L)/Turbo Bypass Solenoid (1.4L)
27	Not Used
28	Not Used
29	Engine Control Module Powertrain Ignition 2
30	Mass Air Flow Sensor
31	Left high-beam headlamp
32	Right high-beam headlamp
33	Engine control module battery
34	Horn
35	Air Conditioning Compressor Clutch
36	Front fog lamps

J-Case Fuses	Usage
1	Electronic brake control module pump
2	Front wipe
3	Blower Motor
4	IEC RC
5	Not Used
6	Not Used
7	Not Used
8	Cooling Fan Low/Mid
9	Cooling Fan High
10	EVP
11	Starter Solenoid

U-Micro Relays	Usage
2	Not Used
4	Spare

HC-Micro Relays	Usage
7	Starter

Mini Relays	Usage
1	Run/Crank
3	Cooling fan – mid
5	Powertrain relay
8	Cooling fan – low

HC-Mini Relays	Usage
6	Cooling fan – high

Auxiliary Fuse Block

Relays	Usage
RLY01	Electric vacuum pump
RLY02	Cooling fan control 1
RLY03	Cooling fan control 2
RLY04	Trailer N/A

Instrument Panel Fuse Block

The instrument panel fuse block is on the underside of the driver side instrument panel.

Buick Encore - fuse box - instrument panel — Buick Encore – fuse box – instrument panel

Fuses	Usage
F1	Body control module 1
F2	Body control module 2
F3	Body control module 3
F4	Body control module 4
F5	Body control module 5
F6	Body control module 6
F7	Body control module 7
F8	Body control module 8
F9	Discrete logic ignition switch
F10	Sensing Diagnostic Module Battery
F11	Data link connector
F12	Heater, Ventilation, and Air Conditioning MDL/ICS
F13	Liftgate relay
F14	UPA Module
F15	LDW Module/Inside Rearview Mirror
F16	Adaptive forward lighting module
F17	Power WNDWSW DR
F18	Rain Sensor
F19	Body Control Module Regulated Voltage Contro
F20	Steering Wheel Switch Backlighting
F21	A/C Accessory Power Outlet/ PRND
F22	Cigar Lighter/DC Accessory Power Outle
F23	Spare
F24	Spare
F25	Spare
F26	Automatic Occupant Sensing Display
F27	IPC/PTC Control/ Clutch Switch
F28	Headlamp Switch/ AFL/DC Converter
F29	Spare
F30	Spare
F31	IPC Battery
F32	Radio/Chime/ Aux Jack
F33	Display/Faceplate
F34	OnStar/UHP/DAB

Midi Fuses	Usage
M01	PTC

S/B Fuses	Usage
S/B01	Spare
S/B02	Spare
S/B03	Power Window Motor Front
S/B04	Power Window Motor Rear
S/B05	Logistic mode relay
S/B06	Spare
S/B07	Spare
S/B08	Spare

Circuit Breaker	Usage
CB1	Spare

Relay	Usage
RLY01	Accessory/Retained accessory power
RLY02	Liftgate
RLY03	Spare
RLY04	Spare
RLY05	Logistic mode

Rear Compartment Fuse Block

The rear compartment fuse block is behind a cover on the driver side of the rear compartment.

Buick Encore - fuse box - rear compartment — Buick Encore – fuse box – rear compartment

Mini Fuses	Usage
F1	Driver Seat Power Lumbar Switch
F2	Passenger Seat Power Lumbar Switch
F3	Amplifier
F4	Trailer Socket (N/A)
F5	All-Wheel Drive Module
F6	Automatic Occupant Sensing Module
F7	Spare/LPG Module Battery
F8	Trailer Parking Lamps (N/A)
F9	Spare
F10	Spare/Side Blind Zone Alert Module
F11	Trailer Module (N/A)
F12	Nav Dock
F13	Heated Steering Wheel
F14	Trailer Socket (N/A)
F15	EVP Switch
F16	Water In Fuel Sensor
F17	Inside Rearview Mirror/Rear Vision Camera
F18	Spare/LPG Module Run/Crank

S/B Fuses	Usage
S/B01	Driver Power Seat Switch/Memory Module
S/B02	Passenger Power Seat Switch
S/B03	Trailer Module (N/A)
S/B04	A/C-D/C Inverter
S/B05	Battery
S/B06	Headlamp Washer
S/B07	Spare
S/B08	Spare
S/B09	Spare

Relays	Usage
RLY01	Ignition Relay
RLY02	Run Relay

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Encore (2016) – fuse box diagram

Posted on 13 January 201725 October 2018 by admin

Buick Encore (2016) – fuse box diagram

Year of production: 2016

Engine Compartment Fuse Block

Mini Fuses	Usage
1	Sunroof
2	Outside Rearview Mirror Switch
3	Canister vent solenoid
4	Not used
5	Electronic brake control module valve
6	Intelligent battery sensor
7	Not used
8	Transmission control module battery
9	Not used
10	Fuel System Control Module R/C/ Headlamp Leveling
11	Rear wiper
12	Rear window defogger
13	Not used
14	Outside Rearview Mirror Heater
15	Fuel system control module battery
16	Heated seat module/ Memory module
17	Transmission Control Module R/C
18	Engine Control Module R/C
19	Fuel pump
20	Not used
21	Fan Relay (Auxiliary Fuse Block)
22	Not used
23	Ignition coil/ Injector
24	Washer pump
25	Not used
26	Canister Purge Solenoid/Water Valve Solenoid/ Oxygen Sensors – Pre and Post/Turbo Wastegate Solenoid (1.4L)/Turbo Bypass Solenoid (1.4L)
27	Auxiliary Heater Pump
28	Engine Control Module Powertrain Ignition 1
29	Engine Control Module Powertrain Ignition 2
30	Mass Air Flow Sensor
31	Left high-beam headlamp
32	Right high-beam headlamp
33	Engine control module battery
34	Horn
35	Air Conditioning Compressor Clutch
36	Front fog lamps

J-Case Fuses	Usage
1	Electronic brake control module pump
2	Front wipe
3	Blower Motor
4	IEC RC
5	Not Used
6	Not Used
7	Starter Solenoid (Automatic Transmission), Not Used (Manual Transmission
8	Cooling Fan Low/Mid
9	Cooling Fan High
10	EVP
11	Pinion Starter Solenoid (Automatic Transmission), Starter Solenoid (Manual Transmission)

U-Micro Relays	Usage
2	Fuel pump
4	Starter/Spare

HC-Micro Relays	Usage
7	Starter/Starter pinion

Mini Relays	Usage
1	Run/Crank
3	Cooling fan – mid
5	Powertrain relay
8	Cooling fan – low

HC-Mini Relays	Usage
6	Cooling fan – high

Auxiliary Fuse Block

Relays	Usage
RLY01	Electric vacuum pump
RLY02	Cooling fan control 1
RLY03	Cooling fan control 2
RLY04	N/A

Instrument Panel Fuse Block

The instrument panel fuse block is on the underside of the driver side instrument panel.

Fuses	Usage
F1	Body control module 1
F2	Body control module 2
F3	Body control module 3
F4	Body control module 4
F5	Body control module 5
F6	Body control module 6
F7	Body control module 7
F8	Body control module 8
F9	Discrete logic ignition switch
F10	Sensing Diagnostic Module Battery
F11	Data link connector
F12	Heater, Ventilation, and Air Conditioning MDL/ICS
F13	Liftgate relay
F14	UPA Module
F15	LDW Module/Inside Rearview Mirror
F16	Adaptive forward lighting module
F17	Power WNDWSW DR
F18	Rain Sensor
F19	Body Control Module Regulated Voltage Contro
F20	Steering Wheel Switch Backlighting
F21	A/C Accessory Power Outlet/ PRND
F22	Cigar Lighter/DC Accessory Power Outle
F23	Spare
F24	Spare
F25	Spare
F26	Automatic Occupant Sensing Display
F27	IPC/PTC Control/ Clutch Switch
F28	Headlamp Switch/ AFL/DC Converter
F29	Spare
F30	Transmission Control Module Battery
F31	IPC Battery
F32	Radio/Chime/ Aux Jack
F33	Display/Faceplate
F34	OnStar/UHP/DAB

Midi Fuses	Usage
M01	PTC

S/B Fuses	Usage
S/B01	Spare
S/B02	Spare
S/B03	Power Window Motor Front
S/B04	Power Window Motor Rear
S/B05	Logistic mode relay
S/B06	Spare
S/B07	Spare
S/B08	Spare

Circuit Breaker	Usage
CB1	Spare

Relay	Usage
RLY01	Accessory/Retained accessory power
RLY02	Liftgate
RLY03	Spare
RLY04	Spare
RLY05	Logistic mode

Rear Compartment Fuse Block

The rear compartment fuse block is behind a cover on the driver side of the rear compartment.

Mini Fuses	Usage
F1	Driver Seat Power Lumbar Switch
F2	Passenger Seat Power Lumbar Switch
F3	Amplifier
F4	Trailer Socket (N/A)
F5	All-Wheel Drive Module
F6	Automatic Occupant Sensing Module
F7	Spare/LPG Module Battery
F8	Trailer Parking Lamps (N/A)
F9	Spare
F10	Spare/Side Blind Zone Alert Module
F11	Trailer Module (N/A)
F12	Nav Dock
F13	Heated Steering Wheel
F14	Trailer Socket (N/A)
F15	Spare/EVP Switch
F16	Water In Fuel Sensor
F17	Inside Rearview Mirror/Rear Vision Camera
F18	Spare/LPG Module Run/Crank

S/B Fuses	Usage
S/B01	Driver Power Seat Switch/Memory Module
S/B02	Passenger Power Seat Switch
S/B03	Trailer Module (N/A)
S/B04	A/C-D/C Inverter
S/B05	Battery
S/B06	Headlamp Washer
S/B07	DC/DC Source 1
S/B08	DC/DC Source 1
S/B09	Spare

Relays	Usage
RLY01	Ignition Relay
RLY02	Run Relay

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Encore (2017) – fuse box diagram

Posted on 13 January 201725 October 2018 by admin

Buick Encore (2017) – fuse box diagram

Year of production: 2017

Engine Compartment Fuse Block

Mini Fuses	Usage
1	Sunroof
2	Exterior rearview mirror switch/Driver side power window/ Rain sensor/ Universal garage door opener
3	Canister vent solenoid
4	—
5	Electronic brake control module valve
6	Intelligent battery sensor
7	Electric steering column lock
8	Transmission control module/FICM
9	Automatic occupancy sensing module
10	Headlamp leveling switch/Headlamp leveling motor/Rear vision camera/ Interior rearview mirror
11	Rear wiper
12	Rear window defogger
13	Power lumbar switch
14	Exterior rearview mirror heater
15	Fuel system control module battery
16	Heated seat module/ Memory module
17	TIM DC DC converter/Fuel system control module RC/ Compass module
18	Engine control module RC/ Transmission control module RC/ FICM RC
19	Fuel pump
20	—
21	Fan relay (auxiliary BEC)
22	—
23	Ignition coil/ Injector coil
24	Washer pump
25	Automatic
26	EMS Var 1
27	–/Auxiliary heater pump
28	–/Engine control module powertrain/ Ignition 3
29	Engine control module powertrain/ Ignition 1/Ignition 2
30	EMS Var 2
31	Left high-beam headlamp
32	Right high-beam headlamp
33	Engine control module battery
34	Horn
35	A/C clutch
36	Front fog lamps

J-Case Fuses	Usage
1	Electronic brake control module pump
2	Front wipe
3	Linear power module blower
4	IEC RC
5	—
7	–/Starter solenoid
8	Cooling fan low – mid
9	Cooling fan – high
10	EVP
11	Starter solenoid/ Starter pinion

U-Micro Relays	Usage
2	Fuel pump
4	–/Auxiliary heater pump

HC-Micro Relays	Usage
7	Starter/Starter pinion
10	Starter solenoid

Mini Relays	Usage
1	Run/Crank
3	Cooling fan – mid
5	Powertrain relay
8	Cooling fan – low

HC-Mini Relays	Usage
6	Cooling fan – high

Auxiliary Fuse Block

Relays	Usage
RLY01	Electric vacuum pump
RLY02	Cooling fan control 1
RLY03	Cooling fan control 2
RLY04	N/A

Instrument Panel Fuse Block

The instrument panel fuse block is on the underside of the driver side instrument panel.

Fuses	Usage
F1	Body control module 1
F2	Body control module 2
F3	Body control module 3
F4	Body control module 4
F5	Body control module 5
F6	Body control module 6
F7	Body control module 7
F8	Body control module 8
F9	Discrete logic ignition switch
F10	Sensing diagnostic module battery
F11	Data link connector
F12	HVAC module/ICS
F13	Liftgate relay
F14	Central gate moduleF15
F15	Lane departure warning/GENTEX
F16	Adaptive forward lighting module
F17	Electrical steering column lock
F18	Parking assist module/Side blind zone alert
F19	Body control module/Regulated voltage control
F20	Clock spring
F21	A/C/Accessory power outlet/PRNDL
F22	Auxiliary power outlet/DC center
F23	HVAC module/ICS
F24	—
F25	OnStar module/ Eraglonass
F26	Heated steering wheel
F27	Instrument panel cluster/Auxiliary heater/Auxiliary virtual image display
F28	Trailer feed 2
F29	Faceplate
F30	DC/DC 400W
F31	Instrument panel cluster module battery
F32	Silver box audio module/Navigation
F33	Trailer feed 1
F34	Passive entry/ Passive start

Midi Fuses	Usage
M01	Positive temperature coefficient

S/B Fuses	Usage
S/B01	Passenger power seat
S/B02	—
S/B03	Front power windows
S/B04	Rear power windows
S/B05	Logistic mode relay
S/B06	Driver power seat
S/B07	—
S/B08	Trailer interface module

Circuit Breaker	Usage
CB1	—

Relay	Usage
RLY01	Accessory/Retained accessory power
RLY02	Liftgate
RLY03	—
RLY04	—
RLY05	Logistic mode

Rear Compartment Fuse Block

The rear compartment fuse block is behind a cover on the driver side of the rear compartment.

Fuses	Usage
F1	—
F2	—
F3	Amplifier audio
F4	—
F5	Rear drive control module
F6	Left cornering lamp
F7	Right cornering lamp
F8	—
F9	—
F10	—
F11	—
F12	—
F13	—
F14	—
F15	—
F16	—
F17	—
F18	—

S/B Fuses	Usage
S/B01	—
S/B02	—
S/B03	—
S/B04	DC/AC inverter module
S/B05	—
S/B06	—
S/B07	DC-DC transformer 400W
S/B08	DC-DC transformer 400W
S/B09	—

Relays	Usage
RLY01	Right cornering lamp
RLY02	Left cornering lamp

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.