Volvo XC40 Fuse Box Locations and Diagrams (2017-2025)

The compact luxury crossover Volvo XC40, introduced in 2017, marked Volvo’s entry into the premium compact SUV segment. Built on the CMA (Compact Modular Architecture) platform, it blends Scandinavian design, advanced safety features, and versatile interior space. Available in both internal combustion and electrified variants—including mild-hybrid, plug-in hybrid, and fully electric (Recharge) models—it continues production through 2025.

In this article, you will find fuse box diagrams for the Volvo XC40, covering model years 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 and 2025. These diagrams are essential for identifying the correct fuses and relays that protect and control various electrical components throughout the vehicle.

What’s Included:

Fuse Box Diagrams – Clear illustrations of the fuse and relay layouts by year and configuration.
Fuse Panel Locations – Step-by-step details on where to locate each fuse box (e.g., under the hood, behind panels, under the glove box).
Fuse Assignments – A full table showing what each fuse and relay controls, simplifying diagnosis and replacement.

Whether you’re troubleshooting a power window issue, replacing a faulty fuse, or configuring accessories, this guide will help you service and support your Volvo XC40 (2017–2025) accurately.

Fuse Box Locations

1) Engine compartment

2) Under the left-hand front seat

Fuse Box Diagrams

2017, 2018

Engine compartment

Under-hood fuse box diagram: Volvo XC40 (2018)

Assignment of fuses in the engine compartment (2017, 2018)

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№	Function	Amp
1	USB port, tunnel console, rear (option)	5
2	12 V socket in tunnel console, front	15
3	–	–
4	12 V socket in cargo area (option)	15
5	Engine Control Module (ECM)	20
6	Ignition coils; Spark plugs	15
7	Solenoids (petrol); Valve; Thermostat for engine cooling system (petrol); EGR cooling pump (diesel); Glow control module (diesel); Engine Control Module (ECM)	15
8	Solenoids (petrol); Valve; Thermostat for engine cooling system (petrol); Cooling pump for EGR (diesel); Glow control module (diesel); Vacuum regulators; Valve; Valve for output pulse (diesel)	10
9	Lambda probe, centre (petrol); Lambda probe, rear (diesel)	15
10	Sensor for nitrous oxides (diesel)	15
11	–	–
12	Right-hand headlamp	20
13	Left-hand headlamp	20
14	Airbags	5
15	Accelerator pedal sensor	5
16	Supplied when the ignition is switched on: Engine control module; Transmission components; Electric steering servo; Central electronic module; Control module for brake system	5
17	Electric additional heater (option); OBD II firewall	5
18	Alcohol lock	5
19	–	–
20	Internal relay coils	5
21
22	Sensor for brake pedal; Brake pedal	5
23	–	–
24	Control module for actuator for engagement/change of automatic gearbox gear positions	5
25	Transmission control module	15
26	Engine Control Module (ECM)	5
27
28
29	Horn	20
30	Siren (option)	5
31	Windscreen wipers	30
32	Control module for brake system (valves, parking brake)	40
33	Control unit for brake system (ABS pump)	40
34
35	Actuator for transmission	25
36	–	–
38	Right-hand headlamp; Left-hand headlamp	30
39	–	–
40	–	–
41	Towbar control module (option)	25
42	Towbar control module (option)	40
43	–	–
44	Power driver seat (option)	20
45
46
47
48
48
49
50
51	Fuel filter heater (diesel)	30
52	Heated windscreen, left (option)	40
53	Heated windscreen, right (option)	40
54	Control function for support battery	5
55	Left-hand headlamp	20
56	Right-hand headlamp	20

Fuses 1-30, 46-50 and 54-56 are of the “Micro” type.
Fuses 31-45, 51-53 are of the “MCase” type and should be replaced by a workshop.

Under the seat

Assignment of fuses under the seat (2017, 2018)

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№	Function	Amp
1	Audio control module (amplifier) (certain variants)	40
2	Central Electric Module A : Sensors, radar units, power seats (option).	40
3	Central Electric Module B: Sensors, radar units, power seats (option).	40
4	Fan module for climate control system, front	40
5	Power operated tailgate (option)	25
6	Power seat, right (option)	20
7	Parking heater (option)	25
8	Control module for reduction of nitrous oxides (diesel) Sun sensor	30
9	Door module in right-hand rear door	20
10	Door module in left-hand rear door	20
11	Door module in left-hand front door	20
12	–	–
13	Door module in right-hand front door	20
14	Seat heating, rear (option)	15
15	–	–
16	–	–
17	Control module for reduction of nitrous oxides (diesel)	15
18	Steering lock	7,5
19	Control module for climate control system	7,5
20	Movement detector (option)	5
21	Driver display	5
22	Keypad in centre console	5
23	Steering wheel module	5
24	Module for start knob and for parking brake control	5
25	Centre display	5
26	Control module for online car; Control module for Volvo On Call	5
27	Module for multi-band antenna	5
28	Relay coils	5
29	Module for detecting foot movement (option) (for opening the power operated tailgate)	5
30	Sensus control module TV (option) (certain markets)	15
31	Diagnostic socket OBDII	10
32	Alcohol lock	5
33	Lock motor for backrest on rear left-hand side	15
34	Lock motor for backrest on rear right-hand side	15
40	Rear window defroster	30
41	Seatbelt pretensioner module, left-hand side	40
42	Seatbelt pretensioner module, right-hand side	40
50	Humidity sensor	5
51	Control module for fuel pump	20
52	Coolant pump	10
53	Steering wheel module for heated steering wheel (option)	15
54	–	–
55	Headlamp washers (option)	25
56	Rear window washer	25
57
58
59
60
61
62
63	Seatbelt pretensioner module	5
64	Blind Spot Information (BLIS) (option): control module, exterior reversing sound	5
65	–	–
66	Sun sensor	5
67	All Wheel Drive (AWD) control module (option)	15
68	Coolant pump	10
69	Parking camera (option)	5
70	–	–
71	Control module for airbags and seatbelt tensioners	5
80	Rear window wiper	15
81	Panorama roof with sun blind (option)	20
82
83	Interior lighting; Dimming of interior rearview mirror (option); Rain and light sensor (option); Control panels in rear doors and cargo area	7,5
84	–	–
85	Control module for driver support functions	5
86	Alcohol lock	5
87	Wireless mobile charger (option); USB port	5
90
91

Fuses 1-8, 40-42 and 55-58 are of the “MCase” type and should be replaced by a workshop.
Fuses 9-34, 50-54 and 60-91 are of the “Micro” type.

2019

Engine compartment

Assignment of fuses in the engine compartment (2019)

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№	Function	Amp
1	USB port, tunnel console, rear (option)	5
2	12 V socket in tunnel console, front	15
3	–	–
4	12 V socket in cargo area (option)	15
5	Engine Control Module (ECM)	20
6	Ignition coils; Spark plugs	15
7	Solenoids (petrol); Valve; Thermostat for engine cooling system (petrol); EGR cooling pump (diesel); Glow control module (diesel); Engine Control Module (ECM)	15
8	Solenoids (petrol); Valve; Thermostat for engine cooling system (petrol); Cooling pump for EGR (diesel); Glow control module (diesel); Vacuum regulators; Valve; Valve for output pulse (diesel)	10
9	Heated oxygen sensor, center (gasoline); Heated oxygen sensor, rear (diesel)	15
10	Sensor for nitrous oxides (diesel)	15
11	–	–
12	Right-hand headlamp	20
13	Left-hand headlamp	20
14	Airbags	5
15	Accelerator pedal sensor	5
16	Fed when ignition is on: engine control module, transmission components, electrical power steering, central electrical module, brake system control module	5
17	Electric additional heater (option); OBD II firewall	5
18
19	–	–
20	Internal relay windings	5
21
22	Sensor for brake pedal; Brake pedal	5
23	–	–
24	Control module for actuator for engagement/change of automatic gearbox gear positions	5
25	Transmission control module	15
26	Engine Control Module (ECM)	5
27
28
29	Horn	20
30	Siren (option)	5
31	Wipers	30
32	Control module for brake system (valves, parking brake)	40
33	Control unit for brake system (ABS pump)	40
34
35	Actuator for transmission	25
36	–	–
38	Right-hand headlamp; Left-hand headlamp	30
39	–	–
40	–	–
41	Towbar control module (option)	25
42	Towbar control module (option)	40
43	–	–
44	Power driver seat (option)	20
45
46
47
48
48
49
50
51	Fuel filter heater (diesel)	30
52	Heated windscreen, left (option)	40
53	Heated windscreen, right (option)	40
54	Control function for support battery	5
55	Left-hand headlamp	20
56	Right-hand headlamp	20

Fuses 1-30, 46-50 and 54-56 are of the “Micro” type.
Fuses 31-45, 51-53 are of the “MCase” type and should be replaced by a workshop.

Under the seat

Assignment of fuses under the seat (2019)

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№	Function	Amp
1	Audio control module (amplifier) (certain variants)	40
2	Central Electric Module A : Sensors, radar units, power seats (option).	40
3	Central Electric Module B: Sensors, radar units, power seats (option).	40
4	Fan module for climate control system, front	40
5	Power operated tailgate (option)	25
6	Power seat, right (option)	20
7	Parking heater (option)	25
8	Control module for reduction of nitrous oxides (diesel) Sun sensor	30
9	Door module in right-hand rear door	20
10	Door module in left-hand rear door	20
11	Door module in left-hand front door	20
12	–	–
13	Door module in right-hand front door	20
14	Seat heating, rear (option)	15
15	–	–
16	–	–
17	Control module for reduction of nitrous oxides (diesel)	15
18
19	Control module for climate control system	7,5
20	Movement detector (option)	5
21	Instrument panel	5
22	Keypad in centre console	5
23	Steering wheel module	5
24	Module for start knob and for parking brake control	5
25	Centre display	5
26	Control module for online car; Control module for Volvo On Call	5
27	Module for multi-band antenna	5
28	Relay coils	5
29	Module for detecting foot movement (option) (for opening the power operated tailgate)	5
30	Sensus control module TV (option) (certain markets)	15
31	Diagnostic socket OBDII	10
32
33	Lock motor for backrest on rear left-hand side	15
34	Lock motor for backrest on rear right-hand side	15
40	Rear window defroster	30
41	Seatbelt pretensioner module, left-hand side	40
42	Seatbelt pretensioner module, right-hand side	40
50	Humidity sensor	5
51	Control module for fuel pump	20
52	Coolant pump	10
53	Steering wheel module for heated steering wheel (option)	15
54	–	–
55	Headlamp washers (option)	25
56	Rear window washer	25
57
58
59
60
61
62
63	Seatbelt pretensioner module	5
64	Blind Spot Information (BLIS) (option): control module, exterior reversing sound	5
65	–	–
66	Sun sensor	5
67	All Wheel Drive (AWD) control module (option)	15
68	Coolant pump	10
69	Parking camera (option)	5
70	–	–
71	Control module for airbags and seatbelt tensioners	5
80	Rear window wiper	15
81	Panorama roof with sun blind (option)	20
82
83	Interior lighting; Dimming of interior rearview mirror (option); Rain and light sensor (option); Control panels in rear doors and cargo area	7,5
84	–	–
85	Control module for driver support functions	5
86
87	Wireless mobile charger (option); USB port	5
90
91

Fuses 1-8, 40-42 and 55-58 are of the “MCase” type and should be replaced by a workshop.
Fuses 9-34, 50-54 and 60-91 are of the “Micro” type.

2020

Engine compartment

Assignment of fuses in the engine compartment (2020)

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№	Amps	Function
1	5	USB port, tunnel console, rear
2	15	12 V socket in tunnel console, front
3	–	–
4	15	12 V socket in cargo area
5	20	Engine Control Module (ECM)
6	15	Ignition coils; Spark plugs
7	15	Solenoids (petrol); Valve; Thermostat for engine cooling system (petrol); EGR cooling pump (diesel); Glow control module (diesel) Engine Control Module (ECM)
8	10	Solenoids (petrol); Valve; Thermostat for engine cooling system (petrol); Cooling pump for EGR (diesel); Glow control module (diesel); Vacuum regulators; Valve; Valve for output pulse (diesel)
9	15	Lambda probe, centre (petrol); Lambda probe, rear (diesel)
10	15	Sensor for nitrous oxides (diesel)
11	20	Coolant pump
12	20	Right-hand headlamp
13	20	Left-hand headlamp
14	5	Airbags
15	5	Accelerator pedal sensor
16	5	Supplied when the ignition is switched on: Engine control module; Transmission components; Electric steering servo; Central electronic module; Control module for brake system
17	5	Electric additional heater; OBD II firewall Exterior audio module (Twin Engine)
18	5	Alcohol lock
19	–	–
20	5	Internal relay coils
21	–	–
22	5	Sensor for brake pedal
23	5	Calculation unit
24	5	Control module for actuator for engagement/change of automatic gearbox gear positions
24	25	Hydraulic clutch control unit
25	15	Transmission control module
25	25	Hydraulic clutch control unit
26	5	Engine Control Module (ECM)
27	5	Twin Engine: Charging unit (OBC)
28	5	Twin Engine: High voltage battery; Inverter generator
29	20	Horn
30	5	Siren
31	30	Windscreen wipers
32	40	Control module for brake system (valves, parking brake)
32	30	Brake control with 48V battery
33	40	Control unit for brake system (ABS pump)
34	40	Twin Engine: Brake booster
35	25	Actuator for transmission
36	30	Actuator for transmission
37	–	–
38	30	Right-hand headlamp; Left-hand headlamp
39	–	–
40	30	Twin Engine: Start relay
41	25	Towbar control module
42	40	Towbar control module
43	–	–
44	20	Power driver seat
45	–	–
46	–	–
47	5	Twin Engine: Air conditioning
48	5	Twin Engine: High voltage battery; Inverter generator
49	15	Twin Engine: Shut-off valve for the hybrid battery’s coolant; Coolant pump 1 for hybrid battery
50	15	Twin Engine: Coolant pump for electric drive system
51	30	Fuel filter heater (diesel)
52	40	Heated windscreen, right-hand side
53	40	Heated windscreen, left-hand side
54	5	Control function for support battery
55	20	Left-hand headlamp
56	20	Right-hand headlamp

Fuses 1-30, 46-50 and 54-56 are of the “Micro” type.
Fuses 31-45, 51-53 are of the “MCase” type and should be replaced by a workshop.

Under the seat

Assignment of fuses under the seat (2020)

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№	Amps	Function
1	40	Audio control device (amplifier)
2	40	Central Electric Module A: Sensors, radar units, power seats
3	40	Central Electric Module B: Sensors, radar units, power seats
4	40	Fan module for climate control system, front
5	25	Power operated tailgate
6	20	Power seat, right
7	25	Parking heater
8	30	Control module for reduction of nitrous oxides (diesel) Sun sensor
9	20	Door module in right-hand rear door
10	20	Door module in left-hand rear door
11	20	Door module in left-hand front door
12	20	Suspension module
13	20	Door module in right-hand front door
14	15	Seat heating, rear
15	5	Twin Engine: The fuel tank’s insulation valve; Intermediate voltage module
16	5	Calculation module
17	15	Control module for reduction of nitrous oxides (diesel)
17	5	Twin Engine: Sun sensor
18	7,5	Steering lock
19	7,5	Control module for climate control system
20	5	Interior movement detectors
21	5	Driver display
22	5	Keypad in centre console
23	5	Steering wheel module
24	5	Module for start knob; Electronic shifting module; Electronic parking brake
25	5	Centre display
26	5	Control module for online car; Control module for Volvo On Call
27	5	Module for multi-band antenna
28	5	Relay coils
29	5	Module for detecting foot movement (for opening the power operated tailgate)
30	15	Sensus control module TV
31	10	Diagnostic socket OBDII
32	5	Alcohol lock Module for increased accessories
33	15	Lock motor for head restraint on rear left-hand side
34	15	Lock motor for head restraint on rear right-hand side
40	30	Rear window defroster
41	40	Seatbelt pretensioner module, left-hand side
42	40	Seatbelt pretensioner module, right-hand side
50	5	Humidity sensor
51	20	Control module for fuel pump
52	7,5	Coolant pump
53	15	Steering wheel module for heated steering wheel
54	5	Air humidity sensor
55	25	Headlamp washers
56	25	Windscreen and rear window washers
57	–	–
58	–	–
59	–	–
60	–	–
61	–	–
62	–	–
63	5	Seatbelt pretensioner module
64	5	Blind Spot Information (BLIS): control module, exterior reversing sound
65	–	–
66	–	–
67	15	All Wheel Drive (AWD) control module
68	7,5	Coolant pump
69	5	Parking camera
70	–	–
71	5	Control module for airbags and seatbelt tensioners
80	15	Rear window wiper
81	20	Roof console for panoramic roof
82	5	Sun sensor
83	7,5	Interior lighting; Dimming of interior rearview mirror; Rain and light sensor; Control panels in rear doors and cargo area
84	–	–
85	5	Control module for driver support functions
86	5	Alcohol lock
87	5	Wireless mobile charger; USB port
90	–	–
91	–	–

Fuses 1-8, 40-42 and 55-58 are of the “MCase” type and should be replaced by a workshop.
Fuses 9-34, 50-54 and 60-91 are of the “Micro” type.

2021

Engine compartment

Assignment of fuses in the engine compartment (2021)

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№	Amps	Function
1	5	USB port tunnel console, rear
1	7.5	Double USB port tunnel console, rear
2	15	12 V outlet in tunnel console, front
3	–	–
4	15	12 V outlet in trunk/cargo compartment
5	20	Engine control module
6	15	Ignition coils; spark plugs
7	15	Solenoids (gasoline); valve; Engine cooling system thermostat (gasoline); EGR cooling pump (diesel); glow control module (diesel) Engine control module
8	10	Solenoids (gasoline); Valve; Engine cooling system thermostat (gasoline); EGR cooling pump (diesel); Glow control module (diesel); Vacuum regulators; Valve; Valve for power pulse (diesel)
8	15	Valves for cooling (Gasoline engines generation 3)
9	15	Heated oxygen sensor, center (gasoline); Heated oxygen sensor, rear (diesel)
10	15	Nitrous oxide sensor (diesel); Engine control module
11	20	Coolant pump
12	20	Right-side headlight
13	20	Left-side headlight
14	5	Airbags
15	5	Accelerator pedal sensor
16	5	Fed when ignition is on: engine control module, transmission components, electrical power steering, central electrical module, brake system control module
17	5	Auxiliary electric heater OBD-II firewall
18	–	–
19	–	–
20	5	Internal relay windings
21	–	–
22	5	Brake pedal sensor
23	5	Calculation module
24	5	Control module for actuator for engaging/changing gears, automatic transmission
24	25	Hydraulic clutch actuator
25	15	Transmission control module
25	25	Hydraulic clutch actuator
26	5	Engine control module
27	–	–
28	–	–
29	20	Horn
30	5	Alarm siren
31	30	Wipers
32	40	Brake system control module (valves, parking brake)
33	40	Brake system control module (ABS pump)
34	–	–
35	25	Transmission actuator
36	30	Transmission actuator
37	–	–
38	30	Right-hand headlight; Left-hand headlight
39	30	Brake control with 48 V battery
40	–	–
41	25	Towbar control module
42	40	Towbar control module
43	–	–
44	20	Power driver seat
45	–	–
46	–	–
47	–	–
48	–	–
49	–	–
50	–	–
51	30	Fuel filter heater (diesel)
52	–	–
53	–	–
54	5	Support battery check function
55	20	Left-side headlight
56	20	Right-side headlight

Fuses 1-30, 46-50 and 54-56 are of the “Micro” type.
Fuses 31-45, 51-53 are of the “MCase” type and should be replaced by a workshop.

Under the seat

Assignment of fuses under the seat (2021)

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№	Amps	Function
1	40	Infotainment control module (amplifier)
2	40	Central Electric Module A: Sensors, radar sensors, power seats
3	40	Central Electric Module B: Sensors, radar sensors, power seats
4	40	Climate system blower module (front)
5	25	Power tailgate
6	20	Power seat, right
7	25	Parking heater
8	30	Control module for reduction of nitrous oxides (diesel)
9	20	Door module in right-side rear door
10	20	Door module in left-side rear door
11	20	Door module in left-side front door
12	–	–
13	20	Door module in right-side front door
14	15	Seat heating, rear
15	5	48 V battery module
16	5	Calculation module
17	15	Control module for reduction of nitrous oxides (diesel)
18	–	–
19	7.5	Climate system control module
20	5	Interior movement sensors
21	5	Instrument panel
22	5	Center console buttons
23	5	Steering wheel module
24	5	Module for start knob; Electronic gear module; Electronic parking brake
25	5	Center display
26	5	Control module for Internet-connected vehicle; Control module for Volvo On Call
27	5	Multi-band antenna module
28	5	Relay coils
29	5	Foot movement detection module for opening the power tailgate
30	15	Sensus control module TV
31	10	Data link connector OBD-II
32	–	–
33	15	Lock motor for rear seat head restraint, left side
34	15	Lock motor for rear seat head restraint, right side
40	30	Heated rear window
41	40	Seat belt tensioner module (left side)
42	40	Seat belt tensioner module (right side)
50	5	Humidity sensor 48 V generator and voltage converter
51	20	Fuel pump control module
52	7.5	Coolant pump
53	15	Heated steering wheel module
54	5	Air humidity sensors
55	25	Headlight washers
56	25	Windshield and tailgate window washers
57	–	–
58	–	–
59	–	–
60	–	–
61	–	–
62	–	–
63	5	Module for seat belt tensioners
64	5	Blind Spot Information (BLIS); Exterior reverse signal control module
65	–	–
66	–	–
67	15	All Wheel Drive (AWD) control module
68	5	Exhaust system
69	5	Park Assist Camera
70	–	–
71	5	Control module for airbags and seat belt tensioners
80	15	Rear window wiper
81	20	Roof console for panoramic roof
82	5	Sun sensor
83	7.5	Interior lighting; rearview mirror autodimming; rain and light sensor; control panels in rear doors and load compartment
84	–	–
85	5	Control module for driver support functions
86	–	–
87	5	Wireless phone charger; USB port
90	–	–
91	–	–

Fuses 1-8, 40-42 and 55-58 are of the “MCase” type and should be replaced by a workshop.
Fuses 9-34, 50-54 and 60-91 are of the “Micro” type.

2022, 2023

Engine compartment

Assignment of fuses in the engine compartment (2022, 2023)

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№	Amps	Function
1	25	Rear USB port (option/accessory)
2	15	12V socket in front tunnel console
4	15	12V socket in cargo/trunk area (option/accessory)
5	20	Engine Control Module (ECM)
6	15	Spark plugs and ignition coils
8	15	Engine and cooling system components (oil pump, turbo/compressor, radiator damper, A/C compressor)
9	15	Oxygen sensor system (lambda sensors)
12	20	Right headlight
13	20	Left headlight
14	5	Airbag system
15	5	Accelerator pedal sensor
16	5	Main systems active when ignition is on (ECM, transmission, power steering, electronics, brakes)
17	5	Auxiliary electric heater, firewall module, and OBD-II diagnostic port
18	5	Alcohol ignition interlock (option/accessory)
20	5	Internal relay control
22	5	Brake pedal sensor
24	25	Transmission actuator and clutch actuator
25	25	Transmission control module and clutch actuator
26	5	Engine Control Module (ECM)
29	20	Horn
30	5	Alarm siren (option/accessory)
31	30	Windscreen wipers
32	40	Brake system control module (valves and parking brake)
33	40	Brake system control module (ABS pump)
35	30	Transmission actuator and control module
36	30	Transmission control module
37	30	Headlight system
41	25	Towbar control module (option/accessory)
42	40	Towbar control module (option/accessory)
44	20	Power-adjustable driver seat (option/accessory)
52	40	Heated windscreen, right side (option/accessory)
53	40	Heated windscreen, left side (option/accessory)
54	5	Support battery monitoring function
55	20	Left headlight
56	20	Right headlight

Under the seat

Assignment of fuses under the seat (2022, 2023)

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№	Amps	Function
1	40	Audio control module (radio system)
2	40	Central Electric Module A – sensors, radar, power seats (option)
3	40	Central Electric Module B – sensors, radar, power seats (option)
4	40	Front climate control fan module
5	25	Power-operated tailgate (option)
6	20	Right power seat (option)
7	25	Parking heater (option)
9	20	Right rear door control module
10	20	Left rear door control module
11	20	Left front door control module
12	25	Safety module (ASDM)
13	20	Right front door control module
14	15	Rear seat heating (option)
17	25	Sun sensor
18	7.5	Steering lock
19	7.5	Climate control module
20	5	Interior motion sensors (option)
21	5	Driver display
22	5	Center console buttons
23	5	Steering wheel module
24	5	Start knob, electronic shifter, parking brake module
25	5	Center display
26	5	Connected services module
27	5	Multiband antenna and telematics module
28	5	Relay coils
29	5	Foot-activated tailgate opening (option)
30	15	Sensus control module, TV (option)
31	10	OBD-II diagnostic port
32	5	Alcohol lock (option)
33	15	Left rear head restraint lock motor
34	15	Right rear head restraint lock motor
40	30	Rear window defroster
41	40	Seatbelt pretensioner – left side
42	40	Seatbelt pretensioner – right side
50	25	Humidity sensor
51	20	Fuel pump control module
52	7.5	Coolant pump
53	15	Heated steering wheel (option)
54	5	Air humidity and particle sensors
55	25	Headlamp washers (option)
56	25	Windshield and rear window washers
63	5	Seatbelt tensioner module
64	5	Blind Spot Information System (BLIS) (option)
66	5	Front radar sensor
69	5	Parking camera (option)
71	5	Airbag and seatbelt control module
80	15	Rear window wiper
81	20	Panoramic roof console (option)
83	7.5	Interior lighting, auto-dimming mirror, rain/light sensor, rear door/cargo controls
85	5	Driver assistance control module
86	5	Alcohol lock (option)
87	5	Wireless phone charger, USB port (option)

2024, 2025

Engine compartment

Assignment of fuses in the engine compartment (2024, 2025)

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№	Amps	Function
1	25	USB port, rear tunnel console (option/accessory)
2	15	12V socket, front tunnel console
4	15	12V socket, cargo area (option/accessory)
5	20	Engine Control Module (ECM)
6	15	Spark plugs and ignition coils
8	15	Engine systems: spoiler damper, radiator damper, oil pump, A/C compressor, turbo/cooling modules
9	15	Oxygen sensor system (lambda probes)
12	20	Right headlamp
13	20	Left headlamp
14	5	Airbag system
15	5	Accelerator pedal sensor
16	5	Main systems powered with ignition on (ECM, transmission, steering, brakes, electronics)
17	5	Auxiliary heater (option), firewall module, OBD-II diagnostic port
18	5	Alcohol interlock system (option/accessory)
20	5	Internal relay coil control
22	5	Brake pedal sensor
24	25	Transmission actuator and clutch actuator
25	25	Transmission control module and clutch actuator
26	5	Engine Control Module (ECM)
29	20	Horn
30	5	Alarm siren (option/accessory)
31	30	Windscreen wipers
32	40	Brake system module (valves and parking brake)
33	40	Brake system module (ABS pump)
35	30	Transmission actuator and control module
36	30	Transmission control module
37	30	Headlamp system
41	25	Towbar control module (option/accessory)
42	40	Towbar control module (option/accessory)
44	20	Power-adjustable driver seat (option/accessory)
52	40	Heated windscreen, right side (option/accessory)
53	40	Heated windscreen, left side (option/accessory)
54	5	Support battery monitoring function
55	20	Left headlamp
56	20	Right headlamp

Under the seat

Assignment of fuses under the seat (2024, 2025)

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№	Amps	Function
1	40	Audio control module (radio system)
2	40	Central Electric Module A – sensors, radar, power seats (option)
3	40	Central Electric Module B – sensors, radar, power seats (option)
4	40	Front climate control fan module
5	25	Power-operated tailgate (option)
6	20	Right power seat (option)
7	25	Parking heater (option)
9	20	Right rear door control module
10	20	Left rear door control module
11	20	Left front door control module
12	25	Safety module (ASDM)
13	20	Right front door control module
14	15	Rear seat heating (option)
17	25	Sun sensor
18	7.5	Steering lock
19	7.5	Climate control module
20	5	Interior motion detectors (option)
21	5	Driver display
22	5	Center console keypad
23	5	Steering wheel module
24	5	Start knob, electronic shifter, and parking brake module
25	5	Center display screen
26	5	Connected services control module
27	5	Telematics and multiband antenna module
28	5	Relay coils
29	5	Foot-operated tailgate opening (option)
30	15	Sensus control module, TV (option)
31	10	OBD-II diagnostic port
32	5	Alcohol lock (option)
33	15	Rear left headrest lock motor
34	15	Rear right headrest lock motor
40	30	Rear window defroster
41	40	Seatbelt pretensioner – left
42	40	Seatbelt pretensioner – right
50	25	Humidity sensor
51	20	Fuel pump control module
52	7.5	Coolant pump
53	15	Heated steering wheel (option)
54	5	Air humidity and particle sensors
55	25	Headlamp washers (option)
56	25	Windscreen and rear window washers
63	5	Seatbelt tensioner module
64	5	Blind Spot Information System (BLIS) (option)
66	5	Front radar sensor
69	5	Parking camera (option)
71	5	Airbag and seatbelt control module
80	15	Rear window wiper
81	20	Panoramic roof console (option)
83	7.5	Interior lights, dimming mirror, rain/light sensors, rear door & cargo controls
85	5	Driver support systems control module
86	5	Alcohol lock (option)
87	5	Wireless charger and USB port (option)

FAQ

What are the cigar lighter (power outlet) fuses in the Volvo XC40?

Fuse #2 (front 12V socket) and fuse #4 (cargo area 12V socket, if equipped) in the engine compartment fuse box.