Nissan 300ZX (Z31 1984 – 1989) – fuse box diagram
Year of production: 1984, 1085, 1986, 1987, 1988, 1989
Passenger Compartment Fuse Box

RHD

LHD

| No. |
A |
Protected Component |
| 1 | 10 | Right Headlight, Headlight System (’88-’89 US), Auxiliary Driving Switch (’88-’89 US), Theft Warning Control Unit (’88-’89 US), Passing Relay (except US), Rear Fog Relay (France) |
| 2 | 10 | Left Headlight, Headlight System (’88-’89 US), Passing Relay (except US), Rear Fog Relay (France) |
| 3 | 15 | Right Headlight Motor, Passing Relay (except US), Rear Fog Relay (except US) |
| 4 | 15 | Left Headlight Motor |
| 5 | 15 | US: Clearance Light, Illumination Lights, Taillight, License Lights, Headlight System |
| 10 | except US (LHD): Clearance Light, Illumination Lights, Taillight, Headlight Timer, Time Control Unit, Park Lamps (’87-’89) | |
| 15 | RHD: Clearance Light, Illumination Lights, Taillight, License Lights, Rear Fog Relay, Front Fog Lamp Switch (’87-’89 Australia) |
|
| 6 | 10 | US: Interior Lights, Spot Lights, Step & Key Hole Lights, Luggage Compartment Light, Clock, Radio, Antenna Timer, Digital Meter, Steering Lock Switch, Time Control Unit (’84), Oxygen Sensor Amp (’84-’87), Chime (’88-’89), Auto Air Conditioner (’88-’89) |
| 10 | except US (LHD): License Lights, Rear Fog Lamps, Tail Lamps (’87-’89), Park Lamps (’87-’89) | |
| 10 | RHD: Interior Lights, Spot Lights, Step Lights, Luggage Compartment Light, Digital Meter, Warning Chime, Clock, Audio, Power Antenna Timer (Digital Meter Model) |
|
| 7 | 15 | US: Auxiliary Driving Light |
| 10 | except US (LHD): Time Control Unit (’84-’86), Interior Lamps, Step Lamps, Spot Lamps, Luggage Lamp, Warning Chime, Clock, Audio | |
| 10 | RHD: Rear Fog Lamps |
|
| 15 | ’87-’89 (Australia): Front Fog Lamps |
|
| 8 | 10 | Hazard Warning Lights |
| 9 | 10 | Horn, Time Control Unit (except EU, US: ’85-’89), Door Lock System (EU LHD) |
| 10 | 20 | ’85-’89 (US): Stoplight, Injector Cooling Fan Timer (’85-’87 Non-Turbo), A/T Interlock System (’88-’89) |
| 15 | ’84 (US): Stoplight, Injector Blower Motor | |
| 15 | except US: Stoplight, Injector Blower Motor (except EU (LHD), except Australia) | |
| 11 | 15 | Air Conditioner |
| 12 | 15 | Air Conditioner |
| 13 | 15 | Ignition Coil, EFI/ECCS System |
| 14 | 10 | Fuel Pump, EFI/ECCS System |
| 15 | 10 | Meter and Gauge, Time Control Unit, Hold Relay (US: ’84-’87), Oxygen Sensor Module (US: ’84-’87), Bulb Check Relay (US: ’85-’87 Non-Turbo), Dim-Dip Relay (Dim-Dip Lamp Model) |
| 16 | 10 | US: Turn Signal, Back-Up Light, Cruise Control, Receiver Amplifier, Boost Sensor (Turbo), Power Steering Switch (Non-Turbo), Voice Warning Unit (’84-’86), Injector Cooling Fan Timer (’84-’87 Turbo), Vacuum Pump (Turbo) |
| 10 | except US: Bulb Check Relay, Back-Up Light, Turn Signal, Boost Sensor, ASCD, Direction Sensor Amplifier (RHD – Digital Meter Mpdel), Cooling Fan (’84-’86, (’87-’89 EU RHD), Injector Blower Timer (’84-’86, (’87-’89 except EU LHD, Australia)) | |
| 17 | 10 | US: Kickdown Solenoid, Seat Belt Tension Reducer, Overdrive Switch, A/T Control Unit, Shock Absorber Control System, A/T Interlock Control Unit (’88-’89) |
| 10 | except US: A/T Control Unit | |
| 18 | 10 | ’84-’86 (US): Door Lock System |
| 10 | ’87-’89 (US): Theft Warning Control Unit (’87-’89), Security Light (’88-’89) | |
| 20 | ’84-’86 (except US – LHD): Bulb Check Relay | |
| 10 | ’87-’89 (except US – LHD): Door Lock System |
|
| 20 | ’87-’89 (EU – LHD): Bulb Check Relay |
|
| 20 | RHD: Rear Window Defogger |
|
| 19 | 10 | ’84-’86 (US): Theft Warning Control Unit |
| 10 | ’87-’89 (US): Door Lock System | |
| 15 | except US (LHD): Passing Lamp Relay |
|
| 10 | RHD: Door Lock System |
|
| 20 | 10 | Radio, Radio Amplifier (US), Clock, Time Control Unit (US, EU LHD), Remote Control Mirror (US, (LHD – ’87-’89)), Door Mirror Defogger (US), Theft Warning Control Unit (US), Power Antenna Switch (EU, RHD) |
| 21 | 10 | Rear Wiper & Washer, Headlight Washer, Digital Gauges (US, RHD) |
| 22 | 15 | Wiper & Washer |
| 23 | 15 | Cigarette Lighter |
| 24 | 10 | Air Conditioner |
| 25 | – | – |
| 26 | – | – |
| 27 | – | – |
| 28 | 20 | ’85-’89 (US – Turbo): Fan Motor, Bulb Check Relay |
| 15 | ’84 (US): Fan Motor | |
| 10 | except US (LHD): ABS | |
| 20 | ’84-’86 (RHD): Bulb Check Relay, Blower Motor, Differential Oil Cooler (Turbo) |
|
| 15 | ’84-’86 (RHD): Bulb Check Relay (Turbo except EU, Australia), Cooling Fan (Turbo except EU, Australia), Differential Oil Cooler (EU) |
|
| 29 | 20 | US: Rear Window Defogger |
| 15 | except US (LHD): Differential Oil Cooler (Turbo), Blower Motor (’84-’86) | |
| 15 | except EU (LHD – ’87-’89): Bulb Check Relay, Condenser Fan (Turbo) |
|
| 10 | RHD: ABS | |
| 30 | 20 | US: Rear Window Defogger |
| 15 | ’84-’86 (except US – LHD): Rear Window Defogger | |
| 20 | ’87-’89 (except US – LHD): Rear Window Defogger |
|
| 20 | ’87-’89 (Australia, Hong-Kong, Singapore): Bulb Check Relay, Condenser Fan |
Engine Compartment Relay Box

| No. |
Relay |
| R1 | Vacuum Pump |
| R2 | US: Compressor |
| except US (LHD): Passing Lamp | |
| ’87-’89 (RHD): Automatic Transmission |
|
| ’87-’89 (RHD): Dim-Dip | |
| R3 | Turbo (US): Fan Motor |
| ’85-’89 (US): Automatic Transmission | |
| except US: Cooling Fan Motor |
|
| RHD: Cooling Fan Motor |
|
| R4 | Headlamp Washer |
| R5 | US: Auxiliary Driving Light |
| except US: Cooling Fan Motor (No.2) | |
| R6 | US: Theft Warning (No.1) |
| except US: Compressor | |
| R7 | Horn |
| R8 | ASCD |
| R9 | Bulb Check |
| R10 | US: Theft Warning (No.2) |
| except US: Cooling Fan Motor (No.3) | |
| R11 | Inhibitor |
| ’87-’89 (US – M/T): Interlock |
Fusible Link Block

US
- 84-’87: BR (BR) – EFI/ECCS System
- ’84-’87: BR (R) – EFI/ECCS System
’88-’89: BR (R, BR) – EFI/ECCS System - G (L/B) – Power Seat (Circuit Breaker), Ignition Relay
- BR (R) – Fuse No.: “1”, “2” (Headlight)
- BR (W/L) – Ignition Switch
except US
- BR (BR) – EFI/ECCS System (except ’87-’89 LHD)
- BR (R) – EFI/ECCS System (except ’87-’89 LHD)
- G (L/B) – Ignition Relay / BR (B/R) – ABS (’87-’89 except EU (LHD))
- BR (R) – Combination Switch (Light)
- BR (W/L) – Ignition Switch
Relay Location
- ’88 (US): EFI Relay / Uphold Relay / Wiper Relay / Headlamp Timer / Headlamp Relay / Passing Relay

- ’88 (US): Flasher Unit / Rear Window Defogger Relay / ASCD Control Unit / Ignition Relay / Blower Relay / Acceessory Relay

- US: Fuel Pump Relay

- except US (LHD): EFI Relay / Uphold Relay / Injector Blower Timer / Wiper Relay / Headlamp Relay/ Headlamp Timer / Passing Relay

- RHD: EFI Relay / Uphold Relay / Injector Blower Timer / Wiper Relay / Headlamp Relay/ Headlamp Timer / Passing Relay

- except US (LHD): Warning Chime / Rear Fog Relay / Ignition Relay No.1 & No.2 / F.P.C.M. Relay / Blower Relay / Accessory Relay / Flasher Unit

- RHD: Warning Chime / Rear Fog Relay / Ignition Relay / Power Window Relay / F.P.C.M. Relay / Blower Relay / Accessory Relay / Flasher Unit

- Power Antenna Timer / Differential Oil Cooler Relay No.1 & No.2 / Fuel Pump Relay

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
