The Infiniti Q50 was produced from 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 and 2024. During this time, the model received an update.This publication describes the fuses and relays for the Infiniti Q50, including fuse box diagrams, their locations, and photo examples. We’ll highlight the fuse responsible for the cigarette lighter.

The purpose of fuses and relays may differ from that described and depends on the year of manufacture and the level of electrical equipment in your vehicle.
Contents
Passenger compartment
In the car’s interior, the fuse and relay box is located under the instrument panel, on the pillar, on the driver’s side, and is covered with a protective cover.

Check the purpose of the elements with your diagrams on the back of the block covers.

Diagram

Assignment
| 1 | 10A Combination Meter, Around View Monitor Control Unit, A/C Auto Amplifier, Integral Switch, Bose Amplifier, Telematic Control Unit (TCU), Telematics Switch, Power Window Main Switch (Door Mirror Remote Control Switch), Display Control Unit, External Data Input Box, Navi Control Unit, AV Control Unit |
| 2 | 5A Body Control Module (BCM) |
| 3 | 15A BOSE Amplifier |
| 4 | 5A Pre-Сrash Seat Belt Control Unit, Data Link Connector, Auto Anti-dazzling Inside Mirror, Rain Sensor, Intelligent Key Warning Buzzer |
| 5 | 15A BOSE Amplifier |
| 6 | 10A A/C Auto Amplifier, Push-Button Ignition Switch, Combination Meter, Integral Switch |
| 7 | 15A Display Control Unit, External Data Input Box, Telematic Control Unit (TCU), AV Control Unit, Navi Control Unit, Around View Monitor Control Unit |
| 8 | 10A Mirror Defogger |
| 9 | 20A Rear Window Defogger |
| 10 | 20A Rear Window Defogger |
| 11 | 5A Back-Up Lamp Relay, Combination Meter, Integral Switch |
| 12 | 10A Shift Lock Relay, Headlamp Aiming Motor (LH/RH), Exhaust Gas/Outside Odor Detecting Sensor, Headlamp Swivel Actuator (LH/RH), Brake Pedal Position Switch, Stop Lamp Switch, Chassis Control Module, Compressor, Steering Force Control Module, Power Steering Control Unit, A/C Auto Amplifier, Navi Control Unit, Ionizer, High Beam Assist Control Module, Auto Anti-dazzling Inside Mirror, Data Link Connector |
| 13 | 10A Air Bag Diagnosis Sensor Unit, Occupant Classification System Control Unit |
| 14 | 5A Display Control Unit, Sonar Control Unit, Telematic Control Unit (TCU), Around View Monitor Control Unit, Heateo Seat Relay, Can Gateway, Lane Camera Unit, Adaptive Front Lighting System (AFS) Control Unit |
| 15 | 5A Drive Mode Select Switch, Meter Control Switch, Automatic Transmission Shift Selector, Glove Box Lamp, Seat Memory Switch, Triple Switch, Combination Switch (Spiral Cable), Integral Switch, Telematics Switch |
| 16 | Not Used |
| 17 | 5A Remote Keyless Entry Receiver, All-Wheel Drive (AWD) Control Unit, Can Gateway |
| 18 | Not Used |
| 19 | 10A Stop Lamp Switch, Body Control Module (BCM), Intelligent Cruise Control (ICC) Brake Hold Relay |
| 20 | 10A Body Control Module (BCM) |
| 21 | Not Used |
| 22 | 10A Advanced Driver Assistance Systems (ADAS) Control Unit, Side Radar (LH/RH), Driver Assistance Buzzer Control Module, All-Wheel Drive (AWD) Control Module |
| 23 | Not Used |
| 24 | 20A Power Socket №2 |
| 25 | 20A Power Socket №1 |
| 26 | Not Used |
| 27 | 15A Blower Motor |
| 28 | 15A Blower Motor |
| 29 | Not Used |
| 30 | 15A Body Control Module (BCM), Seat Memory Switch (with Automatic Drive Positioner) |
| 31 | Not Used |
| 32 | 15A Heated Seat Relay |
| 33 | 15A Body Control Module (BCM) |
| 34 | 20A Power windows |
| 35 | 10A EMC |
| 36 | 10A Heated Steering Wheel Relay |
| 37 | 20A Power windows |
| Relay | |
| R1 | Rear Window Defogger |
| R2 | Accessory |
| R3 | Power Socket |
| R4 | Ignition |
| R5 | Blower |
Fuses 24 and 25, rated at 20A, control the cigarette lighter.
Engine compartment
In the engine compartment, in the rear part on the passenger side, next to the battery, there may be 4 fuse boxes located.

Fuse box 1
Location

Photo – example of a block with a designation

Diagram

Allocation
| 34 | 10A Right Headlamp (High Beam) |
| 35 | 10A Left Headlamp (High Beam) |
| 36 | 15A Right Headlamp (Low Beam) |
| 37 | 15A Left Headlamp (Low Beam) |
| 38 | 10A Engine Control Module (ECM), VIAS Control Solenoid Valve, EVAP Canister Vent Control Valve, Throttle Control Motor Relay |
| 39 | 10A Engine Control Module (ECM), EVAP Canister Purge Volume Control Solenoid Valve, Intake Valve Timing Control Solenoid Valve, Intake Valve Timing Intermediate Lock Control Solenoid Valve, Exhaust Valve Timing Control Solenoid Valve, Mass Air Flow Sensor |
| 40 | 15A Heated Oxygen Sensors, Air Fuel Ratio Sensors |
| 41 | 30A Front Wiper Relay |
| 42 | 15A Front Fog Lamp Relay |
| 43 | 10A Daytime Running Light Relay |
| 44 | 15A Ignition Coils, Condenser, Engine Control Module (ECM) |
| 45 | 10A Fuel Injectors, Engine Control Module (ECM) |
| 46 | 10A Transmission Range Switch, Transmission Control Module (TCM), Primary Speed Sensor, Input Speed Sensor, Output Speed Sensor |
| 47 | 15A Fuel Pump Relay |
| 48 | 10A Cooling Fan Relay, Headlamp Aiming Motors, Headlamp Aiming Switch, Transmission Range Sensor |
| 49 | 10A All-Wheel Drive (AWD) Control Unit, Power Steering Control Module, ABS Solenoid Valve Relay, ABS Motor Relay, Steering Angle Sensor, Yaw Rate/Side/Decel G Sensor |
| 50 | 10A Front and Rear Washer System, Combination Switch |
| 51 | 10A Tail Lamps, License Plate Lamps, Trailer Tow Relay No.1, Headlamp Aiming Switch, Glove Box Lamp, Illumination |
| 52 | 10A Parking Lamps, Side Marker Lamps |
| 53 | 10A A/C Relay |
| 54 | Not Used |
| 55 | 15A Throttle Control Motor Relay |
| 56 | 10A Engine Control Module (ECM) |
Fuse box 2
Diagram

Appointment
- 40A HEAD LAMP WASHER
- 10A ENG CONT
- 15A INJECTOR
- 15A INJECTOR
- 50A RAD FAN
- 50A RAD FAN
Fuse box 3
This high power fuse block is attached to the positive terminal of the battery.

Decoding
| A | 250A Starter, Alternator, Fuses: E, D, C |
| B | Not Used |
| F | 60A Headlamp High Relay (Fuses: 42, 43), Headlamp Low Relay (Fuses: 44, 45), Tail Lamp Relay (Fuses: 59, 60), Fuses: 56, 57, 58 |
| E | 100A Accessory Relay (Power Socket Relay, Fuses: 1), Power Socket Relay (Fuses: 25), Rear Window Defogger Relay (Fuses: 8, 9, 10), Blower Relay (Fuses: 27, 28), Fuses: 2, 3, 4, 5, 6, 7, 15, 17, 19, 20, 30, 32, 33, 36 |
| D | 80A Engine Control Module (ECM) Relay (Fuses: 46, 47, 48), Ignition Relay (Fuses: 49, 50, 51, 52, 53, 54, 55), Fuses: 61, 63, 64 |
| C | 100A Fuses: 65, 66, 67, 68, 69, 70, 72, 73, G, H, J, L, M, N, O, P, Q, R, S |
Fuse box 4
Photo

Diagram from covery

Diagram

Description
| 65 | 10A Vehicle Security Horn Relay |
| 66 | 15A Horn Relay |
| 67 | 10A Accelerator Pedal Actuator / Accelerator Pedal Position Sensor (with Intelligent Cruise Control (ICC)) |
| 68 | 10A Transmission Control Module (TCM) |
| 69 | 10A Alternator |
| 70 | 10A All-Wheel Drive (AWD) Control Module |
| 71 | Not Used |
| 72 | 10A Daytime Running Light Relay |
| 73 | 10A Daytime Running Light Relay |
| 74 | Not Used |
| G | 60A Steering Force Control Module (With Direct Adaptive Steering) |
| H | 100A Steering Angle Sub Control Module (With Direct Adaptive Steering) |
| I | Not Used |
| J | 100A Steering Angle Main Control Module (With Direct Adaptive Steering) |
| K | Not Used |
| L | 30A ABS |
| M | 40A Body Control Module (BCM), Circuit Breaker (Automatic Drive Positioner Control Unit, Power Seat) |
| N | 50A ABS |
| O | 50A Cooling Fan Relay №1 |
| P | 50A Variable Valve Event and Lift (VVEL) Actuator Motor Relay |
| Q | 30A Pre-Crash Seat Belt Control Unit (Passenger Side) (with Intelligent Cruise Control (ICC)) |
| R | 30A Ignition Relay (Fuses: 11, 12, 13, 14, 22) |
| S | 30APre-Crash Seat Belt Control Unit (Driver Side) (with Intelligent Cruise Control (ICC)) |
| Relay | |
| R1 | Horn |
| R2 | Cooling Fan №1 |
| R3 | Daytime Running Light |
| R4 | Vehicle Security Horn |
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