The first-generation Infiniti FX35 and Infiniti FX45 were produced in 2002, 2003, 2004, 2005, 2006, 2007, and 2008 with the model code S50. In this publication, we’ll show the locations of the electronic control units, a detailed description of the fuses and relays for the first-generation Infiniti FX35 FX45, with fuse box diagrams, their locations, and photo examples. We’ll highlight the cigarette lighter fuse.
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
Location
General layout of control units in the cabin
Description
- Body Control Module (BCM)
- Fuse Box
- Intelligent Key Unit
- Steering Lock Unit
- NATS Antenna Amplifier
- Lane Departure Warning (LDW) Camera Unit
- Low Tire Pressure Warning Control Unit
- TEL Adapter Unit
- Display Control Unit
- Unified Meter and A/C Amplifier
- Intelligent Cruise Control (ICC) Unit
- Engine Control Module (ECM)
- AWD Control Unit
- Automatic Drive Positioner Control Unit
- NAVI Control Unit
- Air Bag Diagnosis Sensor Unit
- Rear View Camera Control Unit
- Driver Seat Control Unit
Fuse box
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 | 15A Body Control Module (BCM), Engine Control Module (ECM), Injectors |
| 2 | 15A Cargo Compartment Power Outlet |
| 3 | 15A Rear Power Outlet |
| 4 | 15A Front Power Outlet #2 |
| 5 | – |
| 6 | 10A Audio, Display, Satellite Radio, Unified Meter And A/C Amp, Antenna Amplifier, Body Control Module (BCM), Rear Camera, Navigation, Climate Control Module, Smart Key, DVD Player, Phone, Instrument Cluster, Smart Key External Antenna |
| 7 | 15A Front Power Outlet #1 |
| 8 | 15A Heated Mirrors |
| 9 | 10A Instrument Cluster, Driver Position Control Module |
| 10 | 15A Blower Motor, Unified Meter And A/C Amp |
| 11 | 15A Blower Motor, Unified Meter And A/C Amp |
| 12 | 10A Intelligent Cruise Control, Engine Control Module, Unified Meter And A/C Amp, Brake Light Switch, Shift Lock Solenoid, A/C Compressor, Display, Navigation, Phone, Smart Key, Steering Angle Sensor, Snow Mode, Lane Keeping Warning (LDW), Electrochromic Rearview Mirror (Compass), Rear Window Defogger Relay, All Wheel Drive, ASCD Switch |
| 13 | 10A Air Bags |
| 14 | 10A Instrument Cluster |
| 15 | 10A Heated Seats |
| 16 | 10A ’02-’05: Oxygen Sensors, Air/Fuel Ratio Sensors |
| 17 | 20A Audio Amplifier (BOSE) |
| 18 | 15A Tailgate Control Module |
| 19 | 10A Instrument Cluster, Unified Meter And A/C Amp, Diagnostic Connector, Rear Camera, Theft Deterrent Indicator, Clock |
| 20 | 10A Brake Light Switch, Intelligent Cruise Control, ABS, Unified Meter and A/C Amp, Tail Light Control Unit |
| 21 | 10A 4WD |
| 22 | 15A Body Control Module (BCM), Ignition Switch, Immobilizer Antenna Amplifier, Driver Position Adaptive System Control Unit |
Fuses 5 and 7, rated at 15A, control the cigarette lighter.
On the back of the unit are: R1 – Heater relay and R2 – Auxiliary relay.
Additional fuse box
Layout
Designation
- BOSE Speaker Amplifier
- Back Door Closure Control Unit
- Rear Combination Lamp Control Unit
- ’03-’05: Back-Up Lamp Relay
Engine compartment
Location
General layout of the blocks under the hood
Allocation
- Fuse Box No.2
- Relay Box No.1
- Fuse Box No.1 (IPDM)
- Fusible Link Holder
- ’06-’08: Relay Box No.2
- Front Wiper Motor
- ABS Control Unit
Fuse Box No.2
Installed next to the battery.
Photo – example
Diagram
Appointment
| 31 | 30A Trailer Light |
| 32 | 15A Audio, Subwoofer, Display, Climate Control and Multimedia, Navigation, DVD Player, Telephone |
| 33 | 10A Alternator |
| 34 | 15A Horn Relay |
| 35 | 10A Intelligent Cruise Control (ICC) |
| 36 | 10A Daytime Running Lights |
| 37 | 10A Transmission Control Module (TCM) |
| 38 | 10A Smart Key Control Module, Steering Lock, Ignition Switch |
| F | 40A Ignition Switch, Starter Relay |
| G | 40A Cooling Fan Relay #1, Cooling Fan Relay #3 |
| H | 40A Cooling Fan Relay #2 |
| I | 50A ABS |
| J | – |
| K | 30A Auxiliary Relay #2 (Fuses: “2”, “3”) |
| L | 30A ABS |
| M | 50A Body Control Module (BCM), Adaptive Driver Position Control Module, Power Seats, Power Windows, Rear windshield wiper, sunroof, interior lighting, direction indicators and hazard warning lights |
| Relay | |
| R1 | Horn |
| R2 | Auxiliary Relay No. 2 |
Fuse Box No.1
Installed behind the battery and covered with a protective cover.
Diagram
Decoding
| 71 | 10A Parking light, headlight beam adjustment, taillight control module, license plate light, glove box light, instrument panel light |
| 72 | 10A Right headlight (high beam) |
| 73 | 30A Front wiper relay |
| 74 | 10A Left headlight (high beam) |
| 75 | 20A Rear window defogger relay |
| 76 | 15A Right headlight (low beam) |
| 77 | 20A Engine control module (ECM), ECM relay, MAF sensor, CKP sensor, CAM sensors, ignition coils, EVAP valve, variable valve timing system |
| 78 | 15A Wiper heater |
| 79 | 10A A/C compressor clutch |
| 80 | 20A Rear window defogger relay, fuse: “8” |
| 81 | 15A Fuel pump relay, Engine control module (ECM) |
| 82 | 10A ABS |
| 83 | 10A Transmission control module (TCM), reversing lamp relay, display, navigation Type |
| 84 | 10A Front and rear windshield washer |
| 85 | 10A Oxygen sensors, air/fuel ratio sensors |
| 86 | 15A Left headlight (low beam) |
| 87 | 15A Throttle relay, engine control module (ECM) |
| 88 | 15A Front fog light relay |
| 89 | 10A Diagnostic connector, evaporative emission control system (EVAP) valve, variable intake manifold geometry system (VIAS (VK45DE)) |
| Relay | |
| R1 | Engine Control Unit |
| R2 | High Beam |
| R3 | Low Beam |
| R4 | Starter |
| R5 | Ignition |
| R6 | Cooling Fan (No. 3) |
| R7 | Cooling Fan (No. 1) |
| R8 | Cooling Fan (No. 2) |
| R9 | Throttle Valve |
| R10 | Fuel Pump |
| R11 | Front Fog Light |
Relay Box No.1
Photo – diagram
Description
| DEFOGGER RELAY | Rear Window Defogger Relay |
| A/C BRAKE RELAY | A/C Compressor/Air Conditioner Relay |
| DTRL RELAY | Daytime Running Lights Relay |
Fusible Fuse Box
This high power fuse block is attached to the positive terminal of the battery.
Decoding
| A | 140A Alternator (or AWD), Fuses “B”, “C” |
| B | 100A Fuses “31”, “32”, “33”, “34”, “35”, “36”, “37”, “38”, “F”, “G”, “H”, “I”, “J”, “K”, “M” |
| C | 80A High Beam Relay (Fuses “72”, “74”), Low Beam Relay (Fuses “76”, “86”), Fuses “71”, “73”, “75”, “87”, “88” |
| D | 60A Auxiliary Relay (Fuses “5”, “6”, “7”), Heater Relay (Fuses “10”, “11”), Fuses “17”, “18”, “19”, “20”, “21”, “22”, “41”, “42” |
| E | 80A Ignition Relay (A/C Relay, Relay windshield wiper, windshield wiper speed relay, fuses “81”, “82”, “83”, “84”, “85”), fuses “77”, “78”, “79”, “80” |
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