Infiniti M37 / M56 (Y51; 2010-2012) fuses and relays



In this article, we consider the fourth-generation Infiniti M-Series (Y51), produced from 2010 to 2012. Here you will find fuse box diagrams of Infiniti M37 / M56 2010, 2011 and 2012, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Fuse Layout Infiniti M37 and M56 2010-2012

Cigar lighter (power outlet) fuses in the Infiniti M37 / M56 are the fuses #18 (Cigarette Lighter) and #20 (Console Power Socket) in the Instrument panel fuse box.

Passenger Compartment Fuse Box

Fuse Box Location

The fuse box is located behind the cover under the instrument panel.The location of the fuses in the passenger compartment: Infiniti M37, M56 (2010, 2011, 2012)

Fuse Box Diagram

Instrument panel fuse box diagram: Infiniti M37, M56 (2010, 2011, 2012)

Assignment of fuses in the passenger compartment
Ampere RatingDescription
1-Not Used
210Air Bag Diagnosis Sensor Unit, Occupant Classification System Control Unit
310Headlamp Aiming Motor LH/RH, Wiper Reverse Relay, Shift Lock Relay, Adaptive Front Lighting System (AFS) Control Unit, Automatic Speed Control Device (ASCD) Brake Switch, Stop Lamp Switch, Intelligent Cruise Control (ICC) Brake Switch, Rear Sunshade Control Unit, Low Tire Pressure Warning Control Unit, Climate Controlled Seat Relay, Front Heated Seat Relay, Front Heated Seat Switch (Driver/Passenger Side), Compressor (2012), Sonar Control Unit, CAN Gateway, Tel Adapter Unit, A/C Auto Amplifier, AV Control Module, Auto Anti-Dazzling Inside Mirror, Data Link Connector, Headlamp Swivel Actuator LH/RH, Exhaust Gas / Outside Odor Detecting Sensor, 4-Wheel Active Steer (4WAS) Front Control Unit, Ionizer, Inside Odor Detecting Sensor
410Combination Meter, Back-Up Lamp Relay, Meter Control Switch,
515Heated Steering Wheel Relay
610Clock, Auto Anti-Dazzling Inside Mirror, Rain Sensor, Combination Meter, Triple Switch, Data Link Connector, Pre-Crash Seat Belt Control Unit (Driver/Passenger Side)
710Stop Lamp Switch, Body Control Module (BCM), Intelligent Cruise Control (ICC) Brake Hold Relay
815BOSE Amplifier
915Push-Button Ignition Switch, Combination Meter, CAN Gateway, All Wheel Drive (AWD) Control Unit
1015BOSE Amplifier
1110Body Control Module (BCM), Seat Memory Switch, Intelligent Key Warning Buzzer
12-Not Used
1310Mirror Defogger
1420Rear Window Defogger
1520Rear Window Defogger
16-Not Used
17-Not Used
1815Cigarette Lighter Socket
1910A/C Auto Amplifier, Satellite Radio Tuner, Tel Adapter Unit, Power Window Main Switch, Multifunction Switch, Active Noise Control Unit, BOSE Amplifier, AV Control Unit, Front Microphone (Active Noise Control), Rear Microphone (Active Noise Control), Display Unit
2020Console Power Socket
2115Blower Motor
2215Blower Motor
R1Ignition Relay
R2Rear Window Defogger Relay
R3Accessory Relay
R4Front Blower Relay


Engine Compartment Fuse Boxes

Fuse Box Location

Two fuse boxes are located next to the battery under the plastic cover. To access the block #1, you must remove part of the casing around the battery. The main fuses are located on the positive terminal of the battery.The location of the fuses in the engine compartment: Infiniti M37, M56 (2010-2012)

Fuse Box #1 Diagram

Under-hood fuse box #1 diagram: Infiniti M37, M56 (2010, 2011, 2012)

Assignment of fuses in the engine compartment fuse box #1
Ampere RatingDescription
4115Fuel Pump Relay
4210Cooling Fan Relay №1, Injector Relay №1 (5.6L), Injector Relay №2 (5.6L)
4310Transmission Control Module (TCM)
4410Engine Control Module (ECM), Fuel Injectors (VQ Engine Models and Hybrid)
4515Air Fuel Ratio Sensors, Heated Oxygen Sensors
4610Accelerator Pedal Actuator / Accelerator Pedal Position Sensor, Intelligent Cruise Control (ICC) Sensor, ICC Brake Hold Relay, ABS, Steering Angle Sensor, Driver Assistance Buzzer Control Module, All Wheel Drive (AWD) Control Unit, Advanced Driver Assistance Systems (ADAS) Control Unit, Side Radar LH/RH, Lane Camera Unit, Power Steering Control Unit, Yaw Rate / Side / Decel G Sensor, 4-Wheel Active Steer (4WAS) Main Control Unit, Power Steering Control Unit
4710Front Wiper Motor, Washer Pump
4810Steering Lock Relay
4910Air Conditioner Relay
5015Throttle Control Motor Relay
5115Engine Control Module (ECM) Relay (Engine Control Module, EVAP Canister Vent Control Valve, Condenser, Ignition Coils, EVAP Canister Purge Volume Control Solenoid Valve, Mass Air Flow Sensor, Intake Valve Timing Control Solenoid Valve, Exhaust Valve Timing Control Solenoid Valve (5.6L), Variable Valve Event and Lift (VVEL) Control Module), NATS Antenna Amplifier
52-Not Used
5310Map Lamp, Rear Combination Lamp LH (Body Side), Ashtray Illumination, Combination Switch, Glove Box Lamp, Trunk Lid Opener Switch, Meter Control Switch, Multifunction Switch, Triple Switch, Twin Switch, Telematics Switch, Seat Memory Switch, Clock, Cigarette Lighter Socket, Front Heated Seat Switch (Driver/Passenger Side), Climate Controlled Seat Switch (Driver/Passenger Side), A/T Shift Selector Illumination, Drive Mode Select Switch, IBA Off Switch
5410Left Headlamp (High Beam)
5510Right Headlamp (High Beam)
5615Left Headlamp (Low Beam)
5715Right Headlamp (Low Beam)
58-Not Used
5915Front Fog Lamp Relay
6030Front Wiper Main Relay (Front Wiper Hi/Lo Relay), Wiper Reverse Relay
R1Not Used
R2Starter Control Relay


Fuse Box #2 Diagram

Under-hood fuse box #2 diagram: Infiniti M37, M56 (2010, 2011, 2012)

Assignment of fuses in the engine compartment fuse box #2
Ampere RatingDescription
3115Horn Relay, Alternator
3215Injector Relay №2 (5.6L)
3310All Wheel Drive (AWD) Control Unit
3415AV Control Unit, BOSE Amplifier, Active Noise Control Unit, Satellite Radio Tuner, Display Unit, Tel Adapter Unit
35-Not Used
3610Transmission Control Module (TCM)
37204-Wheel Active Steer (4WAS) Rear Motor Relay
3810Daytime Running Light Relay
G50Variable Valve Event and Lift (VVEL) Actuator Motor Relay
H30Ignition Relay (Fuses: 1, 2, 3, 4, 16)
I30Injector Relay №1 (5.6L)
J30Pre-Crash Seat Belt Control Unit (Driver Side)
K30Pre-Crash Seat Belt Control Unit (Passenger Side)
L40Body Control Module (BCM), Circuit Breaker (Automatic Drive Positioner Control Unit, Power Seat), Fuse: 12
O50Cooling Fan Relay №1
P50Fuses: 61, 62, 63
R1Horn Relay

Relay Box #1

Relay Box #1: Infiniti M37, M56 (2010, 2011, 2012)

Ampere RatingDescription
6110Front Heated Seat Relay, Climate Controlled Seat Relay
6215Climate Controlled Seat Relay
6315Accelerator Pedal Actuator / Accelerator Pedal Position Sensor
Q404-Wheel Active Steer (4WAS) Front Control Unit
R1Injector (№1) (5.6L)
R2Shift Lock
R3Intelligent Cruise Control (ICC) Brake Hold
R4Front Wiper Reverse
R5Cooling Fan (№1)
R6Variable Valve Event and Lift (VVEL) Actuator Motor
R7Vehicle Security Horn
R8Daytime Running Light

Relay Box #2 (M56)

Relay Box #2: Infiniti M56 (2010, 2011, 2012)

Ampere RatingDescription
S-Not Used
R50Cooling Fan Relay №2
R1Cooling Fan Relay (№2)
R2Injector Relay (№2)

Fusible Link Block

Fusible Link Block: Infiniti M37, M56 (2010, 2011, 2012)

Ampere RatingDescription
A250Alternator, Starter, Fuses: C, D, E
B100Fuses: O, P, R
C100Fuses: 31, 32, 33, 34, 36, 37, 38, G, H, I, J, K, L, M, N
D80Ignition Relay (Fuses: 41, 42, 43, 44, 45, 46, 47), Fuses: 49, 50, 51
E100Accessory Relay (Fuses: 18, 19, 20), Rear Window Defogger Relay (Fuses: 13, 14, 15), Blower Relay (Fuses: 21, 22), Fuses: 5, 6, 7, 8, 9, 10, 11
F60Headlamp High Relay (Fuses: 54, 55), Headlamp Low Relay (Fuses: 56, 57), Tail Lamp Relay (Fuses: 52, 53), Fuses: 58, 59, 60