Toyota 4Runner (2018 – 2019) Fuse Box Location & Diagrams
Struggling with electrical issues in your 2018–2019 Toyota 4Runner? Finding the right fuse can be frustrating without proper guidance. This comprehensive manual simplifies the process, providing clear, easy-to-follow diagrams and precise locations for every fuse box, ensuring you can quickly troubleshoot and restore your vehicle’s functionality.
Fuse Box Location
Engine Compartment Fuse Box
Push the tab in and lift the lid off.
Passenger Compartment Fuse Box
Remove the lid.
Fuse Box Diagrams
Engine Compartment Fuse Box
Toyota 4Runner (2018 – 2019)
| Fuse Type | Amperage | ID | Circuit Description |
| MPF2 | — | 2 | PTC Heater No. 3 |
| MINI | 30A | 6 | Rear Window Defogger (DEF) |
| MINI | 20A | 8 | Windshield Wiper Deicer |
| MINI | 10A | 9 | Air Pump Heater |
| MPF2 | — | 10 | PTC Heater No. 2 |
| MPF2 | — | 11 | Auxiliary Battery (SUB BATT) |
| MPF2 | — | 12 | PTC Heater No. 1 |
| MINI | 20A | 13 | Ignition Circuit 2 (IG2) |
| MINI | 10A | 14 | Horn |
| MINI | 25A | 15 | Electronic Fuel Injection (EFI) |
| MINI | 20A | 16 | Air-Fuel Ratio Sensor (A/F) |
| MINI | 10A | 17 | Mirror Heater (MIR HTR) |
| MINI | 30A | 22 | Trailer Tail Lights (TOWING TAIL) |
| MINI | 10A | 24 | Air Conditioning Compressor (A/C COMP) |
| MINI | 10A | 27 | Brake Lights (STOP) |
| MINI | 10A | 30 | Right-Hand Headlight High Beam (H-LP RH-HI) |
| MINI | 10A | 31 | Left-Hand Headlight High Beam (H-LP LH-HI) |
| FLF/PAL 293 | 50A | 32 | Heater (HTR) |
| FLF/PAL 293 | 80A | 36 | 400W Power Inverter |
| FMX/JCase | 30A | 37 | Starter (ST) |
| MINI | 20A | 38 | Headlight High Beams Main (H-LP HI) |
| MINI | 7.5A | 39 | Alternator Voltage Sensor (ALT-S) |
| MINI | 15A | 40 | Turn Signals & Hazard Lights (TURN&HAZ) |
| MINI | 10A | 42 | Electronic Throttle Control System (ETCS) |
| MINI | 30A | 43 | Power Running Boards (PRB) |
| MINI | 30A | 45 | Towing Circuit |
| FLF/PAL 293 | 140A | 46 | Alternator (ALT) |
| FLF/PAL 293 | 80A | 47 | Power Circuit 1-B (P/1-B) |
| MINI | — | 49 | Short Pin |
| MINI | 20A | 50 | Audio System No. 1 (RAD NO.1) |
| MINI | 7.5A | 51 | Ignition System No. 2 (AM2) |
| MINI | 7.5A | 53 | Telematics System (MAYDAY) |
| MINI | 30A | 54 | Audio Amplifier (AMP) |
| MPF2 | — | 55 | Anti-lock Braking System No. 1 (ABS NO. 1) |
| MPF2 | — | 56 | Anti-lock Braking System No. 2 (ABS NO. 2) |
| MPF2 | — | 57 | Secondary Air Injection Pump (AIR PMP) |
| MINI | 10A | 58 | Security System / Anti-theft |
| MINI | 7.5A | 59 | Smart Key System |
| MINI | 20A | 60 | Steering Lock |
| MINI | 30A | 61 | Trailer Brakes (TOWING BRK) |
| MINI | 10A | 63 | Dome Light / Interior Lights |
| MINI | 10A | 64 | Main Battery Control Unit (ECU-B) |
| MINI | 10A | 66 | Right-Hand Headlight Low Beam (H-LP RH-LO) |
| MINI | 10A | 67 | Left-Hand Headlight Low Beam (H-LP LH-LO) |
| MINI | 10A | 68 | Fuel Injectors (INJ) |
| MINI | 7.5A | 69 | Electronic Fuel Injection No. 2 (EFI NO.2) |
Passenger Compartment Fuse Box
Toyota 4Runner (2018 – 2019)
| Fuse Type | Amperage | ID | Circuit Description |
| MINI | 15A | 1 | Cigar lighter / power outlet |
| MINI | 7.5A | 2 | Accessory circuits (ACC) |
| MINI | 10A | 3 | Backup lights |
| MINI | 10A | 4 | Trailer lights (TOWING BKUP) |
| MINI | 10A | 6 | KDSS |
| MINI | 20A | 7 | All-wheel drive system (4WD) |
| MINI | 30A | 8 | Power seats (P/SEAT FL) |
| MINI | 25A | 9 | Power door lock system (D/L NO.2) |
| MINI | 15A | 13 | Front fog lights |
| MINI | 7.5A | 15 | On-board diagnostics (OBD) |
| MINI | 7.5A | 16 | Air conditioning (A/C) |
| MINI | 7.5A | 17 | Starter system (AM 1) |
| MINI | 25A | 18 | Power windows (DOOR RL) |
| MINI | 7.5A | 19 | Power door lock system (DOOR) |
| MINI | 10A | 20 | Engine control unit (ECU-IG NO.1) |
| MINI | 7.5A | 21 | Accessory circuits (IG 1) |
| MINI | 10A | 22 | Engine control unit (ECU-IG NO.2) |
| MINI | 20A | 24 | Front seat heater (S/HTR FR) |
| MINI | 30A | 25 | Power seats (P/SEAT FR) |
| FMM/MCase | 30A | 26 | Power door (DOOR P) |
| MINI | 30A | 27 | Back door (DOOR BACK) |
| MINI | 25A | 28 | Driver door (DOOR D) |
| MINI | 25A | 29 | Power windows (DOOR RR) |
| MINI | 25A | 31 | Sunroof |
| MINI | 30A | 32 | Wipers |
| MINI | 20A | 33 | Windshield washer |
| MINI | 10A | 36 | Ignition |
| MINI | 7.5A | 37 | Instrument cluster (GAUGE) |
| MINI | 7.5A | 38 | Instrument panel lights |
| MINI | 10A | 39 | Tail lights |
