Table of Contents
The second generation of the Infiniti FX crossover, designed for the European market, was unveiled at the Geneva Motor Show in March 2008. The vehicle went on sale in October 2008. At the end of 2013, in accordance with the company's new naming strategy, the crossover was renamed QX70.
In this article, we take a detailed look at the fuse box diagrams for the Infiniti FX35 / FX37 / FX50 / QX70 (S51 chassis; 2008–2017 model years). Below, you will find fuse box locations, relay block diagrams, and photos. The fuse responsible for the “Cigarette lighter” is highlighted in bold.
In the Engine Compartment
On the right side of the engine compartment, next to the battery, are two fuse boxes and battery terminal fusible links. An additional relay block is mounted separately.
| Engine Compartment Fuse Box #1 (IPDM E/R) Diagram | ||
|---|---|---|
|
||
| No. | Description | A |
| 1 | Fuel pump relay | 15 |
| Fuel pump control module | ||
| Fuel level sensor | ||
| Fuel pump | ||
| Engine Control Module (ECM) | ||
| 2 | Cooling fan relay 2 | 10 |
| 3 | Transmission Control Module (TCM) | 10 |
| Snow mode switch | ||
| 4 | Fuel injectors | 10 |
| Engine Control Module (ECM) | ||
| Body Control Module (BCM) | ||
| Headlamp control module | ||
| 5 | Intelligent Cruise Control (ICC) sensor | 10 |
| Accelerator pedal position sensor | ||
| ABS actuator and electric unit | ||
| Steering angle sensor | ||
| Yaw rate / G-sensor | ||
| AWD control unit | ||
| Power steering control unit | ||
| Rear Active Steer (RAS) control unit | ||
| Intelligent Cruise Control (ICC) warning buzzer | ||
| Brake booster control unit | ||
| 6 | Heated oxygen sensor 2 (Bank 2) | 15 |
| Heated oxygen sensor 2 (Bank 1) | ||
| Air fuel ratio (A/F) sensor 1 (Bank 1) | ||
| Air fuel ratio (A/F) sensor 1 (Bank 2) | ||
| 7 | Combination switch | 10 |
| 8 | Not used | - |
| 9 | A/C compressor relay | 10 |
| A/C compressor switch | ||
| 10 | ECM relay | 15 |
| Engine Control Module (ECM) | ||
| Ignition condenser | ||
| Intake valve timing control solenoid valve (Bank 1) | ||
| Intake valve timing control solenoid valve (Bank 2) | ||
| Exhaust valve timing control solenoid valve (Bank 1) | ||
| Exhaust valve timing control solenoid valve (Bank 2) | ||
| EVAP canister purge control valve | ||
| Ignition coils | ||
| Mass Air Flow (MAF) sensor (Bank 2) | ||
| Mass Air Flow (MAF) sensor (Bank 1) | ||
| Variable Valve Event and Lift (VVEL) control unit | ||
| 11 | Electric throttle control actuator | 15 |
| Engine Control Module (ECM) | ||
| 12 | Front parking / side marker lamps | 10 |
| 13 | Tail / rear side marker lamps | 10 |
| License plate lamps | ||
| Glove box lamp | ||
| Lighting control unit | ||
| Front accessory power socket (cigarette lighter) | ||
| A/T shift indicator | ||
| AV control unit | ||
| 14 | Left high-beam headlamp | 10 |
| 15 | Right high-beam headlamp | 10 |
| 16 | Left low-beam headlamp | 15 |
| 17 | Right low-beam headlamp | 15 |
| 18 | Front fog lamps | 10 |
| 19 | Not used | - |
| 20 | Windshield wiper motor | 30 |
| Relays | ||
| R1 | Not used | |
| R2 | Starter relay | |
| Engine Compartment Fuse and Relay Box (E12) Diagram | ||
|---|---|---|
|
||
| No. | Description | A |
| 31 | Horn relay 1 | 15 |
| Alternator | ||
| 32 | Auxiliary power connector | 30 |
| 33 | AWD control unit | 10 |
| Brake booster control unit | ||
| 34 | Front display monitor | 15 |
| AV control unit | ||
| Around View Monitor control unit | ||
| Audio subwoofer | ||
| Satellite radio tuner | ||
| Hands-free phone unit | ||
| 35 | Not used | - |
| 36 | Transmission Control Module (TCM) | 10 |
| 37 | Rear Active Steer (RAS) relay | 20 |
| 38 | Horn relay 2 | 10 |
| G | Variable Valve Event and Lift (VVEL) actuator relay | 50 |
| H | Passenger compartment fuse block (J/B) | 30 |
| Engine compartment IPDM E/R | ||
| I | Not used | - |
| J | Pre-crash seat belt pretensioner system (driver side) | 30 |
| K | Pre-crash seat belt pretensioner system (passenger side) | 30 |
| L | Body Control Module (BCM) | 40 |
| Automatic drive positioner system | ||
| Driver seat control unit | ||
| M | ABS actuator and electric unit | 30 |
| N | ABS actuator and electric unit | 50 |
| O | Cooling fan relay 1 | 50 |
| P | Engine compartment relay box (E213) – Fuses Q, 61, 62, 63 | 50 |
| Relays | ||
| R1 | Horn relay 1 | |
| Fusible Links (Battery Terminal) | ||
|---|---|---|
|
||
| No. | Circuit Protected | A |
| A | Starter motor | 250 |
| Alternator | ||
| Fuses C, D, E | ||
| B | Fuses O (Cooling fan relay 1), S (Cooling fan relay 2) | 100 |
| C | Engine compartment fuse box (E12) | 100 |
| D | Passenger compartment fuse block (J/B) (Fuses 5, 6, 7, 8, 9, 10, 11) | 80 |
| E | Engine compartment IPDM E/R (Fuses 10, 11) | 100 |
| F | Engine compartment IPDM E/R (Fuse 18 [front fog lamp relay], high-beam relay, low-beam relay, parking lamp relay) | 60 |
| Engine Compartment Relay Box (E212 – VK Engines) | ||
|---|---|---|
|
||
|
||
| No. | Description | A |
| R | Not used | - |
| S | Cooling fan relay 2 | 50 |
| Relays | ||
| R1 | Cooling fan relay 2 | |
| Engine Compartment Relay Box (E213) Diagram | ||
|---|---|---|
|
||
| No. | Description | A |
| 61 | Accelerator pedal position sensor | 15 |
| 62 | Climate controlled seat relay | 15 |
| 63 | Climate controlled seat relay | 10 |
| Seat heater relay | ||
| Q | Power liftgate module | 30 |
| Relays | ||
| R6 | Horn relay 2 | |
| R8 | ICC brake lock relay (Intelligent Cruise Control) | |
In the Passenger Compartment
Located in the driver's footwell on the left side, behind the access cover.
Passenger compartment fuse block overview.
| Passenger Compartment Fuse Block (J/B) Diagram | ||
|---|---|---|
|
||
| No. | Description | A |
| 1 | Not used | - |
| 2 | Occupant classification system (OCS) | 10 |
| SRS airbag control unit | ||
| 3 | Right front combination lamp | 10 |
| Left front combination lamp | ||
| In-cabin air ionizer | ||
| Climate controlled seat relay | ||
| Unified Meter and A/C Amp. module | ||
| Tire Pressure Monitoring System (TPMS) | ||
| Multiplex communication control unit | ||
| AV control unit | ||
| In-cabin exhaust gas sensor | ||
| Auto-dimming rearview mirror | ||
| ICC brake lock relay (Intelligent Cruise Control) | ||
| ASCD (Cruise control) switch | ||
| Stop lamp switch | ||
| Adaptive Front-lighting System (AFS) control unit | ||
| Data Link Connector (OBD-II) | ||
| Hazard warning switch | ||
| Lane departure warning buzzer | ||
| Lane departure warning camera | ||
| A/C compressor relay | ||
| Hands-free phone unit | ||
| Seat heater relay | ||
| Driver seat heater switch | ||
| Passenger seat heater switch | ||
| 4 | Combination meter (Instrument cluster) | 10 |
| Reverse lamp relay | ||
| Around View Monitor control unit | ||
| Parking sonar control unit | ||
| 5 | Accessory relay | 20 |
| 6 | Intelligent Key slot | 10 |
| Clock | ||
| Data Link Connector (OBD-II) | ||
| Rain sensor | ||
| Key warning buzzer | ||
| Auto-dimming rearview mirror | ||
| 7 | ICC brake lock relay (Intelligent Cruise Control) | 10 |
| Stop lamp switch | ||
| Body Control Module (BCM) | ||
| 8 | Bose® audio amplifier | 20 |
| 9 | Intelligent Key slot | 10 |
| Push-button ignition switch | ||
| 10 | Body Control Module (BCM) | 10 |
| Automatic drive positioner system | ||
| Lighting control unit | ||
| Seat memory switch | ||
| Driver seat control unit | ||
| 11 | Combination meter (Instrument cluster) | 10 |
| Unified Meter and A/C Amp. module | ||
| AWD control unit | ||
| Multiplex communication control unit | ||
| Pre-crash seat belt pretensioner control unit | ||
| 12 | Spare fuse | - |
| 13 | - | |
| 14 | Not used | - |
| 15 | Power outside mirrors | 10 |
| 16 | Rear window defogger | 20 |
| 17 | Rear window defogger | 20 |
| 18 | Electronically controlled suspension (E-SUS) | 10 |
| 19 | Not used | - |
| 20 | Front power outlet (Infiniti FX cigarette lighter) | 15 |
| 21 | Power mirror control unit | 10 |
| Unified Meter and A/C Amp. module | ||
| Multifunction switch | ||
| Lighting control unit | ||
| AV control unit | ||
| Around View Monitor control unit | ||
| Hands-free phone unit | ||
| Satellite radio tuner | ||
| 22 | Center console power socket | 20 |
| Rear accessory power socket | ||
| 23 | Blower motor | 15 |
| 24 | 15 | |
| 25 | Spare fuse | - |
| 26 | - | |
| Relays | ||
| R1 | Ignition relay | |
| R2 | Rear window defogger relay | |
| R3 | Accessory relay | |
| R4 | Blower motor relay | |