Table of Contents
The power supply circuits for electrical components are protected by fuses and relays. These elements are housed in power distribution boxes located in the engine compartment and passenger compartment.
Fuse box diagrams for Infiniti M37, M56, Q70, and M35h (Y51 chassis code; model years 2010–2018) are detailed below.
Engine Compartment
Two fuse boxes are located on the left side of the engine compartment, and one relay box is located on the right.
Fuse Box #1
Diagram.
| No. | Description | A |
| 31 | Horn relay, alternator | 15 |
| 32 | 5.6L (VK56VD): Fuel injector relay #2 | 15 |
| Hybrid: Daytime running lights (DRL) | 10 | |
| 33 | All-Wheel Drive (AWD) control module | 10 |
| 34 | AV control unit, Bose® audio amplifier, Active Noise Cancellation (ANC), Around View Monitor (”15–”18), satellite radio receiver (”11–”14), display screen (”11–”13), telephone adapter (”11–”13), Telematics Control Unit (TCU, ”14) | 15 |
| 35 | - | - |
| 36 | Transmission Control Module (TCM) | 10 |
| 37 | ”11–”13: 4-Wheel Active Steering (4WAS) | 20 |
| Hybrid: Accelerator pedal actuator | 10 | |
| 38 | ”13–”18: Anti-theft alarm horn relay | 10 |
| ”11–”12: Daytime running lights (DRL) | 10 | |
| G | Except Hybrid: Variable Valve Event and Lift (VVEL) | 50 |
| Hybrid: Radiator cooling fan relay #1 | 50 | |
| H | Ignition relay (fuses 1, 2, 3, 4, 16) | 30 |
| I | 5.6L (VK56VD): Fuel injector relay #1 | 30 |
| J | Pre-crash seat belt pretensioner (driver side) | 30 |
| K | Pre-crash seat belt pretensioner (passenger side) | 30 |
| L | Body Control Module (BCM), circuit breaker (driver seat memory system, power seat), fuse 12 | 40 |
| M | Anti-lock Braking System (ABS) | 30 |
| N | Anti-lock Braking System (ABS) | 50 |
| O | Except Hybrid: Radiator cooling fan relay #1 | 50 |
| P | Except Hybrid: Fuses 61, 62, 63 | 50 |
| Relay | ||
| R1 | Horn | |
Fuse Box #2
General layout.
| Diagram | ||
|---|---|---|
Diagram. |
||
| No. | Description | A |
| 41 | Fuel pump relay | 15 |
| 42 | Except Hybrid: Radiator cooling fan relay #1, fuel injector relay #1 (5.6L VK56VD), fuel injector relay #2 (5.6L VK56VD ”11–”14) | 10 |
| Hybrid: Radiator cooling fan relay #1, auxiliary oil pump | 10 | |
| 43 | Except Hybrid: Transmission Control Module (TCM) | 10 |
| Hybrid: Hybrid Powertrain Control Module (HPCM), lithium-ion battery, electric drive inverter, Transmission Control Module (TCM) | 10 | |
| 44 | Engine Control Module (ECM), fuel injectors (VQ & Hybrid) | 10 |
| 45 | Air-fuel ratio (A/F) sensors, heated oxygen sensors (HO2S) | 15 |
| 46 | Except Hybrid: Accelerator pedal actuator, Accelerator Pedal Position (APP) sensor, Intelligent Cruise Control (ICC), ABS, steering angle sensor, AWD control module, Advanced Driver Assistance Systems (ADAS), lane departure camera, power steering control module, yaw rate/g-sensor, 4-Wheel Active Steering (4WAS ”11–”13), power steering control module (”11–”14) | 10 |
| Hybrid: Accelerator pedal actuator, Intelligent Cruise Control (ICC), Electronically Driven Intelligent Brake (EDIB) | 10 | |
| 47 | Windshield wiper motor, windshield washer pump | 10 |
| 48 | ”11–”12: Steering lock relay | 10 |
| 49 | Except Hybrid: Air conditioning (A/C) compressor clutch relay | 10 |
| 50 | Throttle control motor relay | 15 |
| 51 | Engine Control Module (ECM) relay (ECM, EVAP vent control valve, ignition coils, Mass Air Flow (MAF) sensor, intake valve timing control solenoid valve, fuel injector relay #2 (5.6L VK56VD ”15–”18), VVEL system), NATS immobilizer antenna amp | 15 |
| 52 | ”15–”18: Parking lights, license plate lights | 10 |
| 53 | Interior illumination, instrument cluster backlighting, parking lights, combination switch, glove box light | 10 |
| 54 | Left headlight (high beam) | 10 |
| 55 | Right headlight (high beam) | 10 |
| 56 | Left headlight (low beam) | 15 |
| 57 | Right headlight (low beam) | 15 |
| 58 | ”13–”18: Daytime running lights (DRL) | 10 |
| 59 | Front fog light relay | 15 |
| 60 | Windshield wiper relay | 30 |
| Relay | ||
| R1 | - | |
| R2 | Except Hybrid: Starter motor relay | |
Relay Box
Component identification.
| Except Hybrid Models | ||
|---|---|---|
|
||
| No. | Description | A |
| 61 | Heated front seat relay, climate-controlled seat relay | 10 |
| 62 | Climate-controlled seats | 15 |
| 63 | Accelerator pedal actuator, Accelerator Pedal Position (APP) sensor | 15 |
| Q | ”11–”13: 4-Wheel Active Steering (4WAS) | 40 |
| Relay | ||
| R1 | 5.6L (VK56VD): Fuel injectors (#1) | |
| R2 | Shift lock solenoid | |
| R3 | Intelligent Cruise Control (ICC) | |
| R4 | Windshield wiper relay | |
| R5 | Radiator cooling fan (#1) | |
| R6 | Variable Valve Event and Lift system (VVEL) | |
| R7 | Anti-theft alarm horn relay | |
| R8 | Daytime Running Lights (DRL) | |
| 5.6L (VK56VD) Engine | ||
|---|---|---|
|
||
| No. | Description | A |
| S | - | - |
| R | Radiator cooling fan relay #2 | 50 |
| Relay | ||
| R1 | Radiator cooling fan (#2) | |
| R2 | Fuel injectors (#2) | |
| Hybrid Models | ||
|---|---|---|
|
||
| No. | Description | A |
| 61 | Heated seat relay, climate-controlled seat relay | 15 |
| 62 | Climate-controlled seat relay | 15 |
| 63 | Power trunk lid cinching latch motor | 15 |
| 64 | Lithium-ion battery control module | 10 |
| 65 | Electronically Driven Intelligent Brake (EDIB) | 10 |
| 66 | Brake power supply backup unit | 15 |
| 67 | - | - |
| 68 | Traction battery cooling fan relay | 20 |
| 69 | - | - |
| 70 | Hybrid Powertrain Control Module (HPCM) | 10 |
| 71 | Drive motor inverter | 10 |
| 72 | Inverter coolant pump | 10 |
| 73 | DC/DC converter, lithium-ion battery control module | 10 |
| 74 | Hybrid Powertrain Control Module (HPCM) | 10 |
| T | - | - |
| U | - | - |
| V | - | - |
| W | - | - |
| X | Fuses 61, 62, 63 | 50 |
| Y | Self-shutoff relay (fuses 70, 71, 72, 73), fuse 74 | 50 |
| Z | - | - |
| Relay | ||
| R1 | Self-shutoff relay | |
| Box #4 (Hybrid Models) | ||
|---|---|---|
|
||
| No. | Description | A |
| O | Electric power steering (EPS) control module | 80 |
| P | High beam relay (fuses 54, 55), low beam relay (fuses 56, 57), parking light relay (fuse 53), fuses 59, 60 | 60 |
| Q | Ignition relay (fuses 41, 42, 43, 44, 45, 46, 47), fuses 50, 51 | 80 |
| R | ACC relay (fuses 18, 19, 20), rear window defogger relay (fuses 13, 14, 15), blower motor relay (fuses 21, 22), fuses 5, 6, 7, 8, 9, 10, 11 | 100 |
| S | Fuses G, H, J, K, L, M, N, 31, 32, 34, 36, 37, 38 | 100 |
Fusible Link Block (Battery)
Mounted directly on the positive battery terminal.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | A |
| A | Except Hybrid: Alternator, starter motor, fuses C, D, E | 250 |
| Hybrid: Lithium-ion battery control module | 250 | |
| B | Except Hybrid: Fuses O, P, R | 100 |
| Hybrid: Fuses O, P, Q, R, S, Y, X, 64, 65, 66, 68 | 250 | |
| C | Except Hybrid: Fuses 31, 32, 33, 34, 36, 37, 38, G, H, I, J, K, L, M, N | 100 |
| D | Except Hybrid: Ignition relay (fuses 41, 42, 43, 44, 45, 46, 47), fuses 49, 50, 51 | 80 |
| Hybrid: Electronically Driven Intelligent Brake (EDIB) | 50 | |
| E | Except Hybrid: ACC relay (fuses 18, 19, 20), rear window defogger relay (fuses 13, 14, 15), blower motor relay (fuses 21, 22), fuses 5, 6, 7, 8, 9, 10, 11 | 100 |
| F | Except Hybrid: High beam relay (fuses 54, 55), low beam relay (fuses 56, 57), parking light relay (fuses 52, 53), fuses 58, 59, 60 | 60 |
| Hybrid: Auxiliary oil pump | 50 | |
Passenger Compartment
The passenger compartment houses a main fuse box and an auxiliary relay block.
General overview shown below.
| Passenger Compartment Fuse Assignment | ||
|---|---|---|
|
||
| No. | Description | A |
| 1 | ”13–”18: Heated steering wheel relay | 15 |
| Hybrid: Steering angle sensor, warning buzzer, Advanced Driver Assistance Systems (ADAS), side radar (LH/RH), lane departure camera, Intelligent Cruise Control (ICC), ABS | 10 | |
| 2 | Supplemental Restraint System (SRS) airbags | 10 |
| 3 | Headlight leveling control, windshield wiper relay, shift lock relay, Adaptive Front-lighting System (AFS), Automatic Speed Control Device (ASCD), brake light switch, Intelligent Cruise Control (ICC), power rear sunshade, Tire Pressure Monitoring System (TPMS), climate-controlled seat relay, seat heater relay, A/C compressor (”12–”18), Sonar/Parktronic control module, Around View Monitor (”15–”18), CAN communication, telephone adapter, Telematics Control Unit (TCU ”15–”18), A/C auto amp, AV control unit, auto-dimming rearview mirror, Data Link Connector (OBD-II DLC), air quality sensor (”11–”14), 4-Wheel Active Steering (4WAS ”11–”13), plasma cluster ionizer (”11–”14) | 10 |
| 4 | Instrument cluster, backup lamp relay, Vehicle Sound for Pedestrians (VSP - Hybrid) | 10 |
| 5 | ”13–”18: Power trunk cinching latch motor | 15 |
| ”11–”12: Heated steering wheel relay | 15 | |
| 6 | Power trunk lid (”13–”18), satellite radio receiver (”15–”18), clock, auto-dimming rearview mirror, rain sensor, instrument cluster, Data Link Connector (OBD-II DLC), A/C auto amp (”14–”18), telephone adapter (”14–”18), push-button ignition switch (”14–”18), display screen (”14–”18), Telematics Control Unit (TCU ”15–”18), pre-crash seat belt pretensioner (”11–”14) | 10 |
| 7 | Brake light switch, Body Control Module (BCM), Intelligent Cruise Control (ICC), brake light cut-off relay #1 (Hybrid) | 10 |
| 8 | Bose® audio amplifier | 15 |
| 9 | ”12–”18: All-Wheel Drive (AWD) control module, CAN communication, push-button ignition switch (”12–”13), instrument cluster (”12–”13), Vehicle Sound for Pedestrians (VSP - Hybrid) | 10 |
| ”11–”12: Push-button ignition switch, instrument cluster, CAN communication, AWD control module | 15 | |
| 10 | Bose® audio amplifier | 15 |
| 11 | Body Control Module (BCM), seat memory module, Intelligent Key warning buzzer, daytime running lights (DRL ”15–”18) | 10 |
| 12 | ”15–”18: NATS immobilizer antenna amp | 10 |
| 13 | Heated outside mirrors | 10 |
| 14 | Rear window defogger | 20 |
| 15 | 20 | |
| 16 | ”15–”18: Heated rear seats | 15 |
| Hybrid: Auxiliary heater water pump | 10 | |
| 17 | - | - |
| 18 | ”13–”18: Cigarette lighter, front power outlet (”15–”18), console power outlet (”13–”14) | 20 |
| ”11–”12: Cigarette lighter (Infiniti M37 / M56 / Q70 / M35h) | 15 | |
| 19 | A/C auto amp, satellite radio receiver, telephone adapter, power windows, combination switch, Active Noise Cancellation (ANC), Bose® audio amplifier, AV control unit, Around View Monitor (”15–”18), telematics (”13–”18), display screen (”11–”12) | 10 |
| 20 | Center console power outlet (”11–”12, ”15–”18), rear power outlet (”15–”18) | 20 |
| 21 | Blower motor | 15 |
| 22 | 15 | |
| Passenger Compartment Relay Board | |
|---|---|
|
|
| No. | Relay |
| R1 | Ignition relay |
| R2 | Rear window defogger relay |
| R3 | ACC (Accessory) relay |
| R4 | Blower motor relay |