The eighth-generation Toyota Hilux pickup debuted in 2015. Generational updates brought significant changes not only to the vehicle’s styling, but also to its underlying engineering: the Hilux received a brand-new frame and a redesigned suspension geometry. The exterior underwent extensive updates, featuring LED daytime running light strips in the headlights, smoothed wheel arch contours, newly shaped taillights, and chrome bumper trim. In the cabin, enhanced attention was paid to material quality and ergonomics. New powertrain options were introduced to the engine lineup. For instance, in Middle Eastern markets, a new 2.4-liter GD-series turbodiesel was offered alongside legacy engines, paired with either a manual transmission or a 6-speed Super ECT automatic transmission.
Most electrical circuits in this Japanese pickup truck are protected by fuses. High-current components—such as headlights, fan motors, and the fuel pump—are switched via relays. Fuses and relays are housed in junction/distribution boxes located in the passenger compartment and engine compartment. This article provides detailed fuse box diagrams and relay assignments for the 8th-generation Toyota Hilux (chassis codes AN120, AN130, GUN125, GUN126, GUN135, GUN136, GGN125, TGN121; Toyota IMV platform; 2015, 2016, 2017, 2018, 2019, and 2020 model years).
Engine Compartment
The fuse box is located on the left side of the engine compartment, adjacent to the battery.
Passenger Compartment
General layout of electronic control modules.
| No. | Component / Unit |
| 1 | Relay and fuse box No. 1 |
| 2 | Headlight leveling ECU |
| 3 | Central gateway ECU |
| 4 | Main fuse box |
| 5 | Stop & Start ECU |
| 6 | Telematics transceiver |
| 7 | 4WD control ECU |
| 8 | Engine Control Module (ECM) |
| 9 | Smart door control receiver (with Smart Entry & Start system), door control receiver (without Smart Entry & Start system) |
| 10 | Transmission Control Module (TCM) |
| 11 | Relay box No. 2 |
| 12 | Turbocharger driver |
| 13 | Relay box No. 3 |
| 14 | Navigation ECU |
| 15 | Relay box No. 4 |
| 16 | Shift lock ECU |
| 17 | Air conditioning amplifier |
| 18 | Airbag sensor assembly |
| 19 | Steering lock actuator |
| 20 | Junction connector |
Main Fuse Box
Located under the dashboard on the driver’s side (indicated by No. 4 in the component layout).
Access procedure:
RHD: Remove the lower instrument panel cover (if equipped), then remove the fuse box cover.
LHD: Remove the fuse box cover.
Auxiliary Fuse Box No. 1
Located on the driver’s side, behind the cowl side trim.
Auxiliary Fuse Box No. 2
Located on the passenger side.
Relay Box No. 3
Indicated by No. 13 in the interior component layout.
|
|
| No. | Function |
| R1 | PTC heater (PTC HTR) |
| R2 | |
| R3 | |
| R4 | Viscous heater (VISCOUS) |
| R5 | Empty |
| R6 | Door lock (D / L NO. 1) |
| R7 | Door lock (D / L NO. 2) |
Relay Box No. 4
Indicated by No. 15 in the interior component layout.
|
|
| No. | Function |
| R1 | Daytime running lights (DRL) |
| R2 | Security horn (S-HORN) |
| R3 | Front fog lamps (FOG FR) |
| R4 | Tail lamps (TAIL) |
| R5 | Interior illumination cut-off (DOME CUT) |
| R6 | Ignition (IG1 NO. 1) |
Good day, I seems confused? which fuse number is for the car radio not turning on?
thank you