Infiniti QX50 2nd generation was produced in 2018, 2019, 2020, 2021, 2022, 2023, 2024 and 2025 with the model code J55. As well as Infiniti QX55. In this publication we will present a description of the fuses and relays of the Infiniti QX50 2 with block diagrams, their locations and photo examples of execution. We will highlight the fuse responsible for the cigarette lighter.
The purpose of fuses and relays may differ from the one presented and depends on the year of manufacture and vehicle configuration.
Cabin block
In the car interior, the fuse box is installed on the left side of the instrument panel behind a protective cover.
Check the assignment of elements with your diagrams from the block cover.
Scheme
Description
| (BAT) ELEC PARTS | 10A Electrical equipment from the battery |
| HEATED STRG | 10A Heated steering wheel |
| 4WD | 5A All-wheel drive system |
| P/WDW RR RH | 20A Rear right window regulator |
| AUTO BACK DOOR | 30A Electric tailgate |
| TURN & HAZARD | 10A Turn signals and hazard lights |
| ROOM LAMP | 10A Interior light |
| DOOR LOCK RR | 15A Rear door locks |
| DOOR LOCK FR | 20A Front door locks |
| RR WIPER | 15A Rear wiper |
| P/WDW RR LH | 20A Rear left window regulator |
| E-PKB RH | 30A Electric handbrake right circuit |
| P/WDW FR RH | 20A Front right window regulator |
| SHIFT BY WIRE-1 | 10A Electronic gearbox selector (circuit 1) |
| E-PKB LH | 30A Electric handbrake left circuit |
| BCM | 5A Body electronics module |
| P/WDW FR LH | 20A Front left window regulator |
| HEATED SEAT DR | 15A Driver’s seat heating |
| ATR COUNT | 10A Traction control/stabilization |
| BLOWER MOTOR | 30A Heater motor |
| HEATED SEAT AS | 15A Passenger seat heating |
| WASH PUMP | 10A Washer pump |
| ADAS | 10A Cameras/radar, assistants |
| USB CHARGE | 10A USB charging |
| POWER SOCKET | 20A Cigarette lighter |
| HEATED MIRROR | 10A Heated mirrors |
| RR DEF | 30A Heated rear window |
| (ACC) ELEC PARTS | 10A Electrical equipment via ACC |
| HUD | 5A Projection Display |
| BOSE AMP-MINI | 20A Bose amplifier (mini) |
| BOSE AMP-1 | 15A Bose Amplifier (Channel 1) |
| BOSE AMP-2 | 15A Bose Amplifier (Channel 2) |
| AUDIO | 10A Audio system |
| (BAT) ELEC PARTS | 5A Electrical system (additional circuit from battery) |
| AIR BAG | 10A Airbags |
| METER | 5A Instrument panel |
| STOP LAMP | 10A Stop signals |
| (IGN) ELEC PARTS | 5A Electrical equipment after ignition |
| SHIFT BY WIRE-2 | 5A Electronic gearbox selector (circuit 2) |
| (IGN) ELEC PARTS | 10A Engine/Ignition Circuits |
| VDC CONT | 5A Stabilization control (VDC/ESP) |
The fuse marked POWER SOCKET is responsible for the operation of the cigarette lighter.
Blocks under the hood
In the engine compartment, the fuse and relay blocks are located on the left side next to the battery.
Fuse block 1
Marking
| VDC CONT | 20A VDC/ESP stabilization unit |
| POSITION LAMP (DRL) | 10A Dimensions / DRL |
| FUEL HIGH PUMP | 15A High pressure fuel pump |
| SHIFT BY WIRE MOTOR A | 20A Electronic gearbox selector motor (circuit A) |
| SHIFT BY WIRE CONT | 10A Electronic gearbox selector control |
| POWER SOCKET | 15A Socket/cigarette lighter |
| TOWING | 30A Towbar/Trailer Chain |
| INJECTOR 1 | 15A 1st circuit injectors |
| INJECTOR 2 | 15A 2nd circuit injectors |
| DCA PEDAL | 10A Accelerator pedal (sensor) |
| CVT CONT | 10A CVT control |
| ANTI-THEFT HORN | 15A Alarm siren |
| HORN | 15A Audible signal |
| SHIFT BY WIRE MOTOR B | 20A Gearbox selector motor (circuit B) |
| WIPER DEICER | 15A Heated wiper zone |
Fuse block 2
| 81 | 10A Engine control unit |
| 82 | 15A Engine control unit |
| 83 | 15A Throttle body, engine control unit, canister valve (EVAP), mass air flow sensor, ignition coils, main relay, exhaust valve, intake valve, high-pressure fuel pump, injectors, fuse block in the engine compartment, air fuel ratio sensor, fuel heater, fluid sensor |
| 84 | 10A Engine control unit, intake manifold valve, exhaust timing valve, intake timing valve, intermediate timing valve |
| 85 | 15A Air fuel ratio sensor, heated oxygen sensor, turbocharger valve, engine control unit, glow plug control unit |
| 86 | 15A Injectors, ignition coils, fuse block |
| 87 | 15A Air conditioner compressor relay |
| 88 | Not used |
| 89 | Not used |
| 90 | 30A Front wiper relay, front wiper motor |
| 91 | 20A Fuel pump relay |
| 92 | Not used |
| 93 | 10A Engine control unit, transmission control unit, transmission range sensor, engine compartment fuse box, neutral position sensor, primary speed sensor, secondary speed sensor, rpm sensor, reverse/neutral gear sensor |
| 94 | Not used |
| 95 | 5A Steering wheel lock unit |
| 96 | 10A Start-Stop Relay |
| 97 | 10A Front right combination lamp, front left combination lamp, compressor, transmission range sensor, engine compartment fuse box, neutral position sensor, reverse speed switch, reverse/neutral sensor |
A high-power fuse block is mounted on the positive terminal of the battery.
