Fuses and relays Infiniti QX50 (J50), 2013–2018

Most electrical power circuits in this crossover are protected by fuses. High-current consumers, such as headlights, blower motors, and the fuel pump, are connected via relays. Protective elements are housed in distribution boxes located in the passenger compartment and engine compartment.

Fuse box diagrams and relay assignments for the 1st generation Infiniti QX50 (chassis code J50) model years 2013, 2014, 2015, 2016, 2017, and 2018.

Engine Compartment

There are three fuse blocks in the engine compartment, as well as a fusible link block on the battery.

Fuse Box #1
Example photo shown.
Diagram.
No.	Description	A
41	Fuel pump relay	15
42	Cooling fan relay	10
43	Snow mode switch, Transmission Control Module (TCM)	10
44	Fuel injectors, Engine Control Module (ECM), Body Control Module (BCM)	10
45	ABS actuator and control unit, Intelligent Cruise Control (ICC) sensor, steering angle sensor, yaw rate / lateral G sensor, power steering control unit, AWD control unit, electric brake booster control unit, Blind Spot Warning (BSW) control unit, side radar (LH/RH)	10
46	Air/fuel ratio (A/F) sensors, heated oxygen sensors	15
47	Combination switch	10
48	Not used	-
49	A/C compressor clutch relay	10
50	Engine Control Module (ECM) relay (intake valve timing control solenoid valves, ignition condenser, ignition coils, ECM, MAF sensor, EVAP canister purge volume control solenoid valve, exhaust valve timing control magnet retarders, EVAP canister vent control valve, Variable Valve Event and Lift (VVEL) control module)	15
51	Electronic throttle control motor relay	15
52	Front combination lamps	10
53	Rear combination lamps, license plate lamps, VDC OFF switch, Adaptive Front-lighting System (AFS) switch, LDW switch, combination switch (spiral cable), clock, AV control unit, glove box lamp, sonar OFF switch, Around View Monitor control unit, power seatback return switches (LH/RH), snow mode switch, seat heater switches (driver/passenger), power mirror remote control switch, overhead console lamp, hazard switch, front power outlet, IBA OFF switch, multifunction switch	10
54	Headlamp high beam (LH)	10
55	Headlamp high beam (RH)	10
56	Headlamp low beam (LH)	15
57	Headlamp low beam (RH)	15
58	Front fog lamp relay (2013–2015: 10 A; 2016–2017: 15 A)	10 or 15
59	2016–2017: Daytime Running Light (DRL) relay	10
60	Front windshield wiper relay	30

Fuse Box #2 Diagram
No.	Description	A
31	Horn relay, alternator	15
32	Rear power seatback return control unit, rear seatback release relay (LH), rear seatback release relay (RH)	30
33	All-Wheel Drive (AWD) control unit	10
34	Audio system, AV control unit, iPod connector, Around View Monitor control unit, subwoofer, camera control unit, Bluetooth telematics unit, satellite radio tuner	15
35	Seat heater relay	15
36	Transmission Control Module (TCM)	10
37	2013–2017: Horn relay 2	10
38	Not used	-
F	Radiator cooling fan relay	50
G	Ignition relay (fuses “2”, “3”, “4”), IPDM E/R	30
H	Fuses “61”, “63”	40
I	Not used	-
J		-
K	Body Control Module (BCM), circuit breaker (automatic drive positioner module, driver power seat control unit, power lumbar support switch)	40
L	ABS actuator and control unit	30
M	ABS actuator and control unit	50
N	Variable Valve Event and Lift (VVEL) motor relay	50
O	Not used	-
R1	Horn relay

Fuse Box #3 Diagram
No.	Description	A
61	Accelerator pedal position sensor	10
62	Not used	-
63	Electric brake booster control unit	10
Relays
R1	2013–2015: Cooling fan
	2016–2017: Daytime running lights
R2	Intelligent Cruise Control (ICC) brake hold relay
R3	Not used
R4	Horn relay No. 2

Battery Fusible Link Block
No.	Description	A
A	Generator (alternator), fuses “B”, “C”	140
B	Fuses “F”, “G”, “K”, “L”, “M”, “N”, “31”–“38”	100
C	Ignition relay (fuses “41”–“47”), fuses “48”, “49”, “50”, “51”	80
D	High beam relay (fuses “54”, “55”), low beam relay (fuses “56”, “57”), tail lamp relay (fuses “52”, “53”), fuses “58”, “59”, “60”	60
E	Accessory relay (fuses “18”, “19”, “20”), rear window defogger relay (fuses “13”, “14”, “15”), blower motor relay (fuses “21”, “22”), fuses “6”, “7”, “9”, “10”, “11”	80

Passenger Compartment

Located on the driver's side lower instrument panel, behind an access cover.

Fuse box location and panel cover overview.

Passenger Compartment Fuse Box Diagram
No.	Description	A
1	Not used	-
2	Airbag diagnostic sensor unit, Occupant Classification System (OCS) control unit	10
3	Headlamp aiming motors (LH/RH), shift lock relay, Automatic Speed Control Device (ASCD) brake switch, Intelligent Cruise Control (ICC) brake switch, Adaptive Front-lighting System (AFS) control unit, AFS switch, Data Link Connector (DLC), LDW switch, sonar control unit, Lane Departure Warning (LDW) buzzer, Unified Meter and A/C Amp, seat heater relay, AV control unit, sonar OFF switch, Around View Monitor control unit, warning buzzer, Bluetooth telematics unit, A/C compressor, auto-dimming interior rearview mirror, lane camera unit, stop lamp switch, hazard switch, Plasmacluster ionizer, intake air quality sensor	10
4	Combination meter (instrument cluster), back-up lamp relay	10
5	Not used	-
6	Intelligent Key port, Intelligent Key warning buzzer, Data Link Connector (DLC), Unified Meter and A/C Amp, rear power seatback return control unit, rear seatback release relay (LH/RH), clock, auto-dimming interior rearview mirror, Around View Monitor control unit, display unit, Bluetooth telematics unit, satellite radio tuner, Daytime Running Light (DRL) relay, combination meter	10
7	Stop lamp switch, Body Control Module (BCM), Intelligent Cruise Control (ICC) brake hold relay	10
8	Bose audio amplifier	20
9	Intelligent Key port, push-button ignition switch	10
10	Automatic Drive Positioner switch, driver power seat control unit, power outside mirrors, Body Control Module (BCM)	10
11	Combination meter, All-Wheel Drive (AWD) control unit, Unified Meter and A/C Amp	10
12	Not used	-
13	Heated outside mirrors	10
14	Rear window defogger	20
15		20
16	Not used	-
17		-
18	Front power outlet, cigarette lighter	15
19	Combination meter, Unified Meter and A/C Amp, center display unit, multifunction switch, AV control unit, iPod connector, Body Control Module (BCM), sonar control unit, Bluetooth telematics unit, camera control unit, power mirror switch, satellite radio tuner, Around View Monitor control unit	10
20	Center console power socket	20
21	Blower motor	15
22		15
Relays (Rear Side)
R1	Ignition relay
R2	Rear window defogger relay
R3	Accessory relay
R4	Blower motor relay