The second-generation Infiniti FX was produced in 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, and 2017 with the code S51 and includes models such as the Infiniti FX35, Infiniti FX30, Infiniti FX37, Infiniti FX50, and Infiniti QX70. In this post, we will describe the fuses and relays for the Infiniti FX35, FX37, FX50, and QX70, with block diagrams, locations, and photo examples. Note 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 diagram on the back of the block cover.
Diagram
Assignment
| 1 | Not Used |
| 2 | 10A Occupant Detection System Control Unit, Air Bag Diagnostic Unit |
| 3 | 10A Front Combination Light, Ionizer, Seat Climate Control Relay, A/C Unified Meter & Amplifier, Tire Pressure Warning System Control Unit, CAN Gateway, Audio & Video Control Unit, Exhaust Gas/Exterior Odor Sensor, Auto-Dimming Inside Mirror, ICC Brake Hold Relay, ASCD Brake Switch, Brake Light Switch, AFS Control Unit, Data Connector, Warning Switch, Lane Departure Warning Buzzer, Lane Keeping Camera Unit, Compressor, Telephone Adapter, Seat Heater Relay, Seat Heater Switch (Driver/Passenger Side) |
| 4 | 10A Combination Light, Reversing Light Relay, Around View Camera Control Unit, Sonar Control Unit |
| 5 | 15/20A Auxiliary Relay |
| 6 | 10A Key Slot, Clock, Data Connector Data, Rain Sensor, Smart Key Warning Buzzer, Auto-Dimming Mirror |
| 7 | 10A ICC Brake Hold Relay, Stop Lamp Switch, Body Control Module (BCM) |
| 8 | 20A Bose Audio |
| 9 | 10A Key Slot, Push Button Ignition Switch |
| 10 | 10A Body Control Module (BCM), Automatic Positioning System Control Module, Full Lighting System Control Module, Seat Memory Switch, Driver Seat Control Module |
| 11 | 10A Instrument Cluster, Unified Instrument Cluster & A/C Amplifier, All-Wheel Drive Control Module, CAN Gateway, Pre-Collision Seat Belt Control Module (Driver/Passenger) |
| 12 | Spare |
| 13 | Spare |
| 14 | Not Used |
| 15 | 10A Outside Mirrors |
| 16 | 20A Rear Window Defogger |
| 17 | 20A Rear Window Defogger |
| 18 | 10A E-SUS Control Module |
| 19 | Not Used |
| 20 | 15A Front Power Outlet |
| 21 | 10A Mirror Remote Control Switch, Unified Instrument Cluster & A/C Amplifier Air conditioning, multifunction switch, full lighting control unit, audio/video control unit, surround view camera control unit, phone adapter, satellite radio tuner |
| 22 | 15/20A console power outlet, rear power outlet |
| 23 | 15A blower motor |
| 24 | 15A blower motor |
| 25 | Spare |
| 26 | Spare |
| R1 | Ignition relay |
| R2 | Rear window defroster relay |
| R3 | Accessory relay |
| R4 | Blower relay |
Fuses 20 and 22, 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 3 fuse boxes located.
Fuse box 1
Location
Photo example
Diagram
Designation
| 31 | 15A Horn Relay #1, Generator |
| 32 | 30A Accessory Socket |
| 33 | 10A All-Wheel Drive Module, Brake Booster Control Module |
| 34 | 15A Head-Up Display, Audio/Video Control Module, Around View Monitor Control Module, Subwoofer, Satellite Radio Tuner, Phone Adapter Module |
| 35 | 15A Tailgate Control Module |
| 36 | 10A Transmission Control Module (TCM) |
| 37 | 20A RAS Motor Relay |
| 38 | 10A Horn Relay #2 |
| G | 50A VVEL Drive Motor Relay |
| H | 30A Fuse Block J/B, IPDM E/R |
| I | Not Used |
| J | 30A Pre-Collision Seat Belt Control Module (Driver Side) |
| K | 30A Pre-Collision Seat Belt Control Module (Passenger Side) |
| L | 40A Body Control Module (BCM), Automatic Seat Control, Driver Seat Control Module, Lumbar Support Switch, Side Support Module, Switch Power Seat |
| M | 30A ABS Drive and Electronics Unit |
| N | 50A ABS Drive and Electronics Unit |
| O | 50A Cooling Fan Relay #1 |
| P | 50A Relay Box #1 (fuses: Q, 61, 62, 63) |
| R1 | Horn Relay #1 |
Fuse box 2
Diagram from covery
Diagram
Allocation
| 1 | 15A Fuel Pump Relay, Fuel Pump Control Module, Fuel Level Sensor Module, Fuel Pump, Engine Control Module (ECM) |
| 2 | 10A Cooling Fan #2 Relay |
| 3 | 10A Transmission Control Module (TCM), Snow Mode Switch |
| 4 | 10A Fuel Injectors, Engine Control Module (ECM), Body Control Module (BCM), Lighting Control Module |
| 5 | 10A Integrated ICC Sensor Unit, Accelerator Pedal Actuator, ABS Drive & Electronic Control Module (ECM), Steering Angle Sensor, Yaw Rate Sensor 1, AWD Control Module, Power Steering Control Module, RAS Control Module, ICC Warning Horn, Brake Booster Control Module |
| 6 | 15A Oxygen Sensor #2 (Bank 2/Bank 1), Air/Fuel Ratio Sensor #1 (Bank 1/Bank 2) |
| 7 | 10A Combination Switch |
| 8 | 10A Relay Steering Column Lock |
| 9 | 10A A/C Relay, Compressor |
| 10 | 15A Engine Control Module (ECM), ECM Relay, Condenser, Intake Valve Timing Solenoid, Exhaust Valve Timing Solenoid, EVAP Canister Vent Valve, Ignition Coils, EVAP Canister Purge Volume Control Solenoid Valve, Mass Air Flow Sensors, VVEL Control Module |
| 11 | 15A Throttle Actuator Motor Relay, Engine Control Module (ECM) |
| 12 | 10A Tail Light |
| 13 | 10A Rear Combination Light, License Plate Light, Glove Box Light, A/C Light Control Module, Front Power Outlet, ATT Selector, Audio and Video Control Module |
| 14 | 10A Left Headlight (High Beam) |
| 15 | 10A Right Headlight (High Beam) |
| 16 | 15A Left Headlight (Low Beam) |
| 17 | 15A Right Headlight (Low Beam) (light) |
| 18 | 10/15A Fog Light Relay |
| 19 | Not used |
| 20 | 30A Front Wiper Relay |
| R1 | Not used |
| R2 | Starter Control Relay |
Fuse box 3
This high power fuse block is attached to the positive terminal of the battery.
Decoding
| A | 250A Starter Motor, Alternator, Fuses: C, D, E |
| B | 100A Fuses: O (Cooling Fan Relay 1), S (Cooling Fan Relay 2) |
| C | 100A Fuse and Fusible Link Block |
| D | 80A IP Fuse Block (Fuses: 5, 6, 7, 8, 9, 10, 11), To Accessory Power Supply, To Ignition Power Supply |
| E | 100A IPDM E/R (Fuses: 10, 11), To Ignition Power Supply |
| F | 60A IPDM E/R (Fuse: 18 (Front Fog Lamp Relay); Headlamp High Relay, Headlamp Low Relay, Tail Lamp Relay), To Ignition Power Supply |
Relay box 1
Location
Appointment
| VVEL RELAY | The VVEL (Variable Valve Event and Lift) system relay controls the variable valve timing and lift system. |
| H/L WASH RELAY | Headlamp Wash Relay. |
| PWM RELAY | Pulse Width Modulation Relay (PWM Relay) is used to control cooling fans or other variable-speed systems. |
On the other side of the battery, another block can be installed with a relay and fuses responsible for the cooling system.
Fuse box 4
Another block with fuses and relays is installed separately.
Diagram
Description
| 61 | 15A Accelerator Pedal Actuator |
| 62 | 15A Climate Control Seat Relay |
| 63 | 10A Climate Control Seat Relay, Seat Heating Relay |
| Q | 30A Automatic Tailgate Control Module |
| R1 | Not Used |
| R2 | Not Used |
| R3 | Not Used |
| R4 | Not Used |
| R5 | Not Used |
| R6 | Horn Relay #2 |
| R7 | Not Used |
| R8 | ICC Brake Hold Relay |
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