Table of Contents
The electrical circuits of this vehicle are protected by fuses and relays located in distribution boxes (fuse boxes) within the engine compartment and passenger cabin.
Fuse and relay box diagrams for Infiniti EX25, EX35, and EX37 (chassis code J50; model years 2007–2013).
Engine Compartment
Fuse boxes are located on the left (driver’s) side of the engine compartment.
Fuse Box No. 1 (IPDM E/R)
Representative photo shown for reference.
| Diagram | ||
|---|---|---|
|
||
| No. | Circuit Protected | Rating (A) |
| 41 | Fuel pump module relay | 15 |
| 42 | Radiator cooling fan relay | 10 |
| 43 | Transmission Control Module (TCM), Snow Mode switch | 10 |
| 44 | Fuel injectors, Engine Control Module (ECM), Body Control Module (BCM) | 10 |
| 45 | ABS, Intelligent Cruise Control (ICC), steering angle sensor, power steering control unit, 4WD control unit, yaw rate sensor | 10 |
| 46 | Heated oxygen sensors (HO2S), air-fuel ratio (A/F) sensor | 15 |
| 47 | Combination switch (lighting switch) | 10 |
| 48 | Steering column lock relay | 10 |
| 49 | A/C compressor relay | 10 |
| 50 | Engine Control Module (ECM) relay | 15 |
| 51 | Throttle control motor relay | 15 |
| 52 | Front parking / side marker lamps | 10 |
| 53 | Taillights, license plate lamps, VDC OFF switch, Adaptive Front-lighting System (AFS), Lane Departure Warning (LDW), combination switch (lighting switch), AV control unit, clock, glove box lamp, parking assist control unit, Around View Monitor, seat heater switches, power mirror control unit, overhead console lamps, Snow Mode switch | 10 |
| 54 | Left headlamp (high beam) | 10 |
| 55 | Right headlamp (high beam) | 10 |
| 56 | Left headlamp (low beam) | 15 |
| 57 | Right headlamp (low beam) | 15 |
| 58 | Front fog lamp relay | 15 |
| 59 | 10 | |
| 60 | Windshield wiper relay | 30 |
Fuse Box No. 2
General view.
| Diagram | ||
|---|---|---|
|
||
| No. | Circuit Protected | Rating (A) |
| 31 | Horn relay, alternator | 15 |
| 32 | Power rear seatback folding control unit | 30 |
| 33 | All-Wheel Drive (AWD) control unit | 10 |
| 34 | Audio system, AV control unit, iPod connector, Around View Monitor, subwoofer, camera control unit, hands-free phone module, satellite radio receiver | 15 |
| 35 | Heated seat relay | 15 |
| 36 | Transmission Control Module (TCM) | 10 |
| 37 | - | - |
| 38 | Horn relay No. 2 | 15 |
| F | Radiator cooling fan relay | 50 |
| G | Ignition relay (fuses "2", "3", "4"), IPDM E/R (Engine Compartment Fuse Box No. 1) | 30 |
| H | 40 | |
| I | - | - |
| J | - | - |
| K | Body Control Module (BCM), circuit breaker (Automatic Drive Positioner module, power driver seat) | 40 |
| L | ABS control unit | 30 |
| M | 50 | |
| Relay Assignment | ||
| R1 | Horn relay | |
| R2 | Shift lock solenoid relay | |
Fusible Link Block
Mounted on the positive battery terminal.
| Diagram | ||
|---|---|---|
|
||
| Link | Circuit Protected | Rating (A) |
| A | Alternator, fusible links "B" and "C" | 140 |
| B | Fuses / fusible links "F", "G", "K", "L", "M", "31", "32", "33", "34", "35", "36", "38" | 100 |
| C | Ignition relay (fuses "41", "42", "43", "44", "45", "46", "47"), fuses "48", "49", "50", "51" | 80 |
| D | High beam relay (fuses "54", "55"), low beam relay (fuses "56", "57"), parking lamp relay (fuses "52", "53"), fuses "58", "59", "60" | 60 |
| E | Accessory relay (fuses "18", "19", "20"), rear window defogger relay (fuses "13", "14", "15"), blower motor relay (fuses "21", "22"), fuses "6", "7", "9", "10", "11" | 80 |
Passenger Compartment Fuse Box
Located on the driver’s side lower dash panel.
Access panel removal.
General view of the fuse box.
| Diagram | ||
|---|---|---|
|
||
| No. | Circuit Protected | Rating (A) |
| 1 | - | - |
| 2 | Supplemental Restraint System (SRS) airbags, Occupant Classification System (OCS) | 10 |
| 3 | Headlamp aiming control, shift lock relay, cruise control (ASCD/ICC), Adaptive Front-lighting System (AFS), Data Link Connector (DLC), Lane Departure Warning (LDW), parking assist control unit, unified meter and A/C amp, seat heater relay, Around View Monitor, warning buzzer, hands-free phone module, A/C compressor, auto-dimming rearview mirror, AV control unit | 10 |
| 4 | Combination meter (instrument cluster), reverse lamp relay | 10 |
| 5 | - | - |
| 6 | Intelligent Key slot, keyless entry warning buzzer, Data Link Connector (DLC), unified meter and A/C amp, power rear seatback control module, clock, auto-dimming rearview mirror | 10 |
| 7 | Stop lamp switch, Body Control Module (BCM), ICC brake hold relay | 10 |
| 8 | Bose® audio amplifier | 20 |
| 9 | Push-button ignition switch, Intelligent Key slot | 10 |
| 10 | Seat memory switch, Automatic Drive Positioner (ADP) control unit, power outside mirrors, power driver seat control unit, Body Control Module (BCM) | 10 |
| 11 | Combination meter (instrument cluster) | 10 |
| 12 | - | - |
| 13 | Heated outside mirrors | 10 |
| 14 | Rear window defogger | 20 |
| 15 | 20 | |
| 16 | - | - |
| 17 | - | - |
| 18 | Front accessory power socket / cigarette lighter – Infiniti EX25, EX35, EX37 | 15 |
| 19 | Combination meter, unified meter and A/C amp, multi-function display, combination switch, AV control unit, iPod connector, Body Control Module (BCM), parking assist control unit, hands-free phone module, camera control unit, power mirror control unit, satellite radio receiver, Around View Monitor | 10 |
| 20 | Center console power socket | 15 |
| 21 | Blower motor | 15 |
| 22 | Blower motor | 15 |
|
|
| No. | Relay Function |
| R1 | Ignition relay |
| R2 | Rear window defogger relay |
| R3 | Accessory relay |
| R4 | Blower motor relay |