Table of Contents
The power supply circuits for the vehicle’s electrical system are protected by fuses and relays. These components are housed in power distribution boxes located in the engine compartment and passenger compartment.
Fuse box diagrams and relay assignments for Infiniti QX56 / QX80 (Z62) model years 2010–2017 are detailed below.
Engine Compartment
The engine compartment contains two main fuse/relay distribution boxes and three auxiliary relay panels.
Fuse Box #1
Fuse Box #2
| No. | Description | A |
| 31 | Horn relay | 15 |
| 32 | Generator (alternator) | 10 |
| 33 | Accelerator pedal position (APP) sensor | 10 |
| 34 | Transfer case control module | 10 |
| 35 | Audio/Visual (AV) module, front display, video distributor, headrest displays, Telematics Control Unit (TCU, '14–'17) | 15 |
| 36 | Security alarm relay | 10 |
| 37 | IPDM E/R (Ignition relay 2: air suspension control unit; Ignition relay 3: warning buzzer, Intelligent Cruise Control (ICC), accelerator pedal, Advanced Driver Assistance System (ADAS), side radar sensors, Lane Keep Assist) | 10 |
| 38 | Transmission Control Module (TCM) | 10 |
| F | Electric brake booster system, fuses “T”, “V”, “79”, “84”, “85”, “86” | 40 |
| G | Ignition relay 1 (fuses “1”, “2”, “3”, “4”, “16”), fuses “12”, “81”, “82”, “83”, “U” | 40 |
| H | IPDM E/R | 40 |
| I | Air suspension compressor relay | 30 |
| J | Transfer case control module | 30 |
| K | Body Control Module (BCM), circuit breaker (driver seat position memory, driver seat control module) | 50 |
| L | ABS actuator and electric unit | 30 |
| M | ABS actuator and electric unit | 50 |
| Relay | ||
| R1 | Horn | |
Relay Box #1
| No. | Description | A |
| 71 | Engine Control Module (ECM) | 30 |
| 72 | Cooling fan control module | 10 |
| 73 | Fuel pump control module | 15 |
| 74 | ABS control module | 10 |
| 87 | '14–'17: Fuel injector relay | 15 |
| 88 | '14–'17: Daytime running light (DRL) relay | 10 |
| 89 | 10 | |
| 90 | 10 | |
| Relay | ||
| R1 | Remote engine starter | |
| R2 | - | |
| R3 | '10–'13: Security alarm horn | |
| '14–'17: Daytime running lights (DRL) | ||
| R4 | - | |
| R5 | - | |
| R6 | Reverse lamps | |
| R7 | Heated steering wheel | |
| R8 | Intelligent Cruise Control (ICC) | |
| R9 | Windshield wiper de-icer | |
| R10 | Rear air conditioning | |
| R11 | Stop lights | |
| R12 | Air suspension compressor | |
| R13 | Ignition | |
| R14 | Variable Valve Event and Lift (VVEL) | |
Relay Box #2
| No. | Description | A |
| 81 | Climate-controlled seat relay | 15 |
| 82 | 15 | |
| 83 | Pre-crash seat belt pretensioner system | 30 |
| 84 | Trailer turn signals | 15 |
| 85 | Trailer reverse lamp relay | 10 |
| 86 | Trailer side marker light relay | 10 |
| U | Headlamp washer relay | 30 |
| V | Trailer power feed relay | 30 |
| Relay | ||
| R1 | Climate-controlled seats | |
| R2 | Right trailer turn signal | |
| R3 | Headlamp washers | |
| R4 | Left trailer turn signal | |
| R5 | Trailer parking lights | |
| R6 | Trailer power feed | |
Power Fuse Panel
Located on the positive battery terminal.
Passenger Compartment
The passenger compartment distribution box is located inside the cabin. Additional relay modules are mounted on the rear side of the junction block.
Hello, any idea where I can find the fuse box #2 on a 2012 QX56?
I’ve looked EVERYWHERE for the suspension air compressor relay “I” but can’t find it.
Thanks in advance.