Toyota Yaris 4 generation was produced in 2020, 2021, 2022, 2023, 2024, 2025, 2026 in the hatchback body, as popular version of off-road – Toyota Yaris Cross and version with a hybrid system. During this time, the model has undergone an update. In this publication you will find a description of fuses and relays Toyota Yaris 4 with schematics of blocks and their locations. Let’s highlight the fuse responsible for the cigarette lighter.
Fuse and relay assignments may vary from those shown and depend on the year of manufacture, rate region, and equipment level of your vehicle.
Passenger compartment
In the vehicle interior, the fuse box is located on the left side under the instrument panel. The protective cover must be removed for access.
RHD
Photo for example.
Diagram
Assignment
| 1 | (IDLE UP) CVT and Shift Indicator, Engine Control |
| 2 | (MIR HTR) Mirror heater |
| 3 | (DOOR R/R) Rear right door |
| 4 | (OBD) On-board diagnostics |
| 5 | (ECU-B NO.3) Power Source |
| 6 | (DOOR F/R) Front right door |
| 7 | (DOOR R/L) Rear left door |
| 8 | (DOOR F/L) Front left door lock |
| 9 | (DOME CUT) Dome light and interior light |
| 10 | (ECU-DCC NO.1) Advanced Park System, Automatic High Beam System, Automatic Light Control, Blind Spot Monitor System, Dynamic Radar Cruise Control, Front Fog Light, Front Wiper and Washer, Headlight, Headlight Beam Level Control, Illumination, Lane Control System, Light Auto Turn Off System, Light Reminder, Option Connector (Front Fog Light), Panoramic View Monitor System, Parking Support Brake System, Rear Fog Light, Rear Wiper and Washer, Taillight, TOYOTA Parking Assist-Sensor System, Turn Signal and Hazard Warning Light |
| 11 | (ECU-DCC NO.2) Engine control unit |
| 12 | (RADIO) Radio and audio system |
| 13 | (D/L) Power door lock system |
| 14 | (USB NO.1) USB charger |
| 15 | (ECU-ACC) Engine control unit |
| 16 | EMPTY |
| 17 | DOOR BACK |
| 18 | EMPTY |
| 19 | (WIPER RR) Rear wiper |
| 20 | (EPS-IGR) Electric power steering |
| 21 | (ECU-IGR NO.1) Engine control unit |
| 22 | (ECU-IGR NO.4) Stop & Start System |
| 23 | (BKUP LP) Backup lights |
| 24 | (ECU-IGR NO.2) Engine control unit |
| 25 | (A/BAG-IGR) Airbag |
| 26 | (METER-IGR) Instrument cluster |
| 27 | (ECU-IGR NO.3) ABS, Brake Hold System, Downhill Assist Control, Electric Parking Brake, Hill-Start Assist Control, TRC, VSC |
| 28 | (ECU-B NO.2) Engine control unit |
| 29 | (STOP) Stop lights |
| 30 | (ECU-B NO.1) BS, Brake Hold System, Electric Parking Brake, Entry & Start System, Hill-Start Assist Control, Hybrid System, Immobiliser System, Multiplex Communication System (CAN), Power Window, Shift Control System, Starting, Steering Lock, Tire Pressure Warning System, TRC, VSC, Wireless Door Lock Control |
| 31 | (TOWING) Trailer lights |
| 32 | (AM2) Starter system |
| 33 | (STRG LOCK) Steering lock |
| 34 | (HAZ) Hazard light |
| 35 | EMPTY |
| 36 | (DOME) Dome light and interior light |
| 37 | (P/OUTLET MO.1) Auxiliary power outlet |
| 38 | EMPTY |
| 39 | (DOOR DBL/L) Door double locking |
| 40 | EMPTY |
| 41 | (DCM) Data communication module (telematics system) |
Fuse number 37 for 15A is responsible for the operation of the cigarette lighter.
Engine compartment
Under the hood in the engine compartment on the left side there is the main block with fuses and relays.
Check the assignment of the elements against the diagram on the back of the protective cover.
Diagram
Designation
| R1 | (EFI-MAIN NO.3) Multiport fuel injection system |
| R2 | (A/F HTR) Air fuel ratio sensor |
| R3 | (EFI-MAIN NO.2) Multiport fuel injection system |
| R4 | (FAN NO.1) Electric cooling fan |
| R5 | (EFI-MAIN NO.1) Multiport fuel injection system, Cooling Fan, Engine Control |
| R6 | (HORN) Horn |
| R7 | (IGP) Ignition |
| R8 | (WIPER) Wipers |
| R9 | VVT |
| R10 | (S-HORN) Horn / anti-theft deterrent |
| 1 | (INJ) Fuel injectors |
| 2 | (EFI NO.5) Multiport fuel injection system |
| 3 | (EFI NO.2) Multiport fuel injection system |
| 4 | (EFI NO.3) Multiport fuel injection system |
| 5 | (EFI NO.4) Multiport fuel injection system |
| 6 | (ECU-IGP NO.3) ABS, Air Conditioner, Brake Hold System, Downhill Assist Control, Dynamic Radar Cruise Control, Electric Parking Brake, Heated Steering Wheel System, Hill-Start Assist Control, Hybrid System, Immobiliser System, Mirror Heater, Multiplex Communication System (CAN), Rear Window Defogger, Seat Heater, Shift Control System, Starting, Stop Light, TRC, VSC |
| 7 | (ECU-IGP NO.2) Shift Lock |
| 8 | ECU-IGP NO.1 |
| 9 | (WASHER) Windshield washer |
| 10 | EMPTY |
| 11 | (WIPER) Wipers |
| 12 | (S-HORN) Horn / anti-theft deterrent |
| 13 | (HORN) Horn |
| 14 | VVT |
| 15 | (TOWING-B NO.1) Trailer lights |
| 16 | (EFI-MAIN NO.2) Multiport fuel injection system |
| 17 | CAPACITOR |
| 18 | (A/F HTR) Air fuel ratio sensor |
| 19 | (EFI-MAIN NO.3) Multiport fuel injection system |
| 20 | (EFI NO.1) Multiport fuel injection system |
| 21 | (EFI-MAIN NO.1) Multiport fuel injection system |
| 22 | GP-MAIN |
| 23 | J/C CUT |
| 24 | (SPARE1) Spare fuse |
| 25 | (SPARE2) Spare fuse |
| 26 | (SPARE3) Spare fuse |
| 27 | EMPTY |
| 39 | (INP STD NO.1-2) Interior Light, Power Back Door |
| 40 | INP STD NO.1-1 |
| 41 | (PTC HTR) Additional heater |
| 28 | (FAN NO.1) Electric cooling fan |
| 29 | (ABS-MAIN) Anti-lock braking system |
| 30 | (ABS NO.2) Anti-lock braking system |
| 31 | (ABS NO.1) Anti-lock braking system |
| 32 | (FAN) Electric cooling fan |
| 33 | SUB R-B ALT |
| 34 | (DC/DC) DC to DC transformer 400 watts |
| 35 | INP STD NO.1-3 |
| 36 | (EPS) Electric power steering |
| 37 | (STD P/I NO.1) Automatic High Beam System, Automatic Light Control, Front Fog Light, Headlight, Headlight Beam Level Control, Illumination, Light Auto Turn Off System, Light Reminder, Option Connector (Front Fog Light), Taillight |
| 38 | SUB R/B BATT |
Another fuse box can be installed on the right side of the engine compartment.
There may also be high-capacity power fuses on the plus terminal of the battery.
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And if you still have questions or have something to add – write in the comments.