FUSE BOX DIAGRAMS & RELAY INFORMATION
Toyota Tundra (XK70; 2022–2026) – Fuse Box Locations and Diagrams
Find fuse box locations, fuse ratings, circuit descriptions and diagrams for the third-generation Toyota Tundra (XK70). Select a fuse box below or search its fuse list.
Vehicle Information
- Vehicle
- Toyota Tundra
- Generation
- Third Generation (XK70)
- Model years
- 2022–2026
- Body
- Full-size pickup truck
- Platform
- Toyota TNGA-F (GA-F)
- Drivetrain
- Rear-wheel drive (4×2) or four-wheel drive (4×4)
- Engine
- 3.4L twin-turbo V6 i-FORCE; i-FORCE MAX hybrid
- Transmission
- 10-speed automatic
- Market
- Primarily North America
- Assembly
- San Antonio, Texas, USA
Fuse Box Locations
The Toyota Tundra (2022–2026) has fuse and relay locations inside the passenger compartment and in the engine compartment. Additional junction blocks may be present depending on equipment and powertrain.
- Passenger compartment: under the dashboard.
- Engine compartment: fuse and relay boxes under the hood.
Important: Fuse positions and assignments can vary by model year, trim, powertrain and market. Always confirm the label on your vehicle’s fuse box cover and consult the owner’s manual before replacing a fuse.
Passenger compartment
Click the diagram to open the full-size image, then use the searchable table to find a fuse by number, amperage, label or circuit.
| No. | Amps | Fuse name | Protected circuit / description |
|---|---|---|---|
| 3 | 20A | DOOR R/R | Rear right door |
| 4 | 7.5A | OBD | On-board diagnostics |
| 5 | 10A | ECU-B NO.3 | Engine control unit |
| 6 | 20A | DOOR F/R | Front right door |
| 7 | 20A | DOOR R/L | Rear left door |
| 8 | 20A | DOOR F/L | Front left door lock |
| 9 | 10A | DOME CUT | Dome light and interior light |
| 10 | 10A | ECU-DCC NO.1 | Engine control unit |
| 11 | 10A | ECU-DCC NO.2 | Engine control unit |
| 12 | 20A | RADIO | Radio and audio system |
| 13 | 25A | D/L | Power door lock system |
| 14 | 7.5A | USB NO.1 | USB charger |
| 15 | 5A | ECU-ACC | Engine control unit |
| 16 | 5A | SPARE-ACC | Spare fuse |
| 17 | 10A | DOOR BACK | DOOR BACK |
| 18 | 10A | FUEL OPN-SUV | FUEL OPN-SUV |
| 19 | 15A | WIPER RR | Rear wiper |
| 20 | 5A | EPS-IGR | Electric power steering |
| 21 | 10A | ECU-IGR NO.1 | Engine control unit |
| 22 | 5A | ECU-IGR NO.4 | Engine control unit |
| 23 | 10A | BKUP LP | Backup lights |
| 24 | 10A | ECU-IGR NO.2 | Engine control unit |
| 25 | 10A | A/BAG-IGR | Airbag |
| 26 | 5A | METER-IGR | Instrument cluster |
| 27 | 10A | ECU-IGR NO.3 | Engine control unit |
| 28 | 10A | ECU-B NO.2 | Engine control unit |
| 29 | 10A | STOP | Stop lights |
| 30 | 5A | ECU-B NO.1 | Engine control unit |
| 31 | 25A | AMP NO.1 | Audio system |
| 32 | 7.5A | AM2 | Starter system |
| 34 | 10A | HAZ | Hazard light |
| 35 | 7.5A | USB NO.2 | USB charger |
| 36 | 10A | DOME | Dome light and interior light |
| 37 | 15A | P/OUTLET NO.1 | Cigar lighter / power outlet |
| 38 | 10A | SPARE-IGR | SPARE-IGR |
| 39 | 25A | AMP NO.2 | Audio system |
| 40 | 10A | FUEL OPN-PU | FUEL OPN-PU |
| 41 | 10A | DCM | Data communication module (telematics system) |
No matching fuses in this table.
Engine compartment – fuse box 1
Click the diagram to open the full-size image, then use the searchable table to find a fuse by number, amperage, label or circuit.
| No. | Amps | Fuse name | Protected circuit / description |
|---|---|---|---|
| 2 | 15A | S/HTR F/R | Seat heater |
| 4 | 5A | ECU-IGP NO.2 | ECU-IGP NO.2 |
| 5 | 5A | ECU-IGP NO.1 | ECU-IGP NO.1 |
| 6 | 15A | S/HTR F/L | Front seat heater |
| 7 | 30A | BBC NO.4 | Stop & Start system |
| 10 | 5A | ENG-IGR NO.1 | ENG-IGR NO.1 |
| 12 | 7.5A | TOWING-IGR | TOWING-IGR |
| 13 | 5A | AIRSUS-IGR | AIRSUS-IGR |
| 16 | 30A | TOWING TAIL | Trailer lights |
| 19 | 10A | TOWING BK/UP | TOWING BK/UP |
| 20 | 30A | 4WD-B | All wheel drive system |
| 21 | 30A | P/W BACK NO.1 | P/W BACK NO.1 |
| 22 | 50A | AIRSUS | AIRSUS |
| 25 | 7.5A | BATT-S NO.1 | Battery and charging system |
| 26 | 20A | SPOILER FR | SPOILER FR |
| 27 | 7.5A | BATT-S NO.2 | Battery and charging system |
| 28 | 30A | TOWING | Trailer lights |
| 29 | 15A | HORN | Horn |
| 31 | 30A | D/C CUT | D/C CUT |
| 33 | 40A | BBC NO.1 | Stop & Start system |
| 34 | 40A | BBC NO.2 | Stop & Start system |
| 35 | 50A | BBC NO.3 | Stop & Start system |
| 38 | 30A | TI&TE | Power tilt and power telescopic |
| 43 | 50A | PTC HTR NO.1 | Additional heater |
| 44 | 80A | J/B-B | Junction box bus |
| 45 | 80A | EPS NO.1 | Electric power steering |
| 46 | 80A | P/I | P/I |
| 47 | 80A | EPS NO.2 | Electric power steering |
| 50 | 200A | ALT | Battery and charging system |
| 51 | 200A | SUB R/B | SUB R/B |
| 54 | 30A | SHADE | SHADE |
| 55 | 15A | DEICER | Deicer or defroster |
| 60 | 120A | J/B-ALT NO.2 | J/B-ALT NO.2 |
| 61 | 100A | J/B-ALT NO.1 | J/B-ALT NO.1 |
| 62 | 80A | INV | Power outlet (DC/AC inverter) |
| 63 | 40A | SUB BATT | SUB BATT |
| 64 | 30A | TOWING BRK | Trailer brakes |
| 65 | 30A | PRB | PRB |
| 67 | 50A | PTC HTR NO.2 | Additional heater |
No matching fuses in this table.
Engine compartment – fuse box 2
Click the diagram to open the full-size image, then use the searchable table to find a fuse by number, amperage, label or circuit.
| No. | Amps | Fuse name | Protected circuit / description |
|---|---|---|---|
| 1 | 5A | ECU-IGP NO.4 | ECU-IGP NO.4 |
| 2 | 5A | ECU-IGP NO.3 | ECU-IGP NO.3 |
| 3 | 7.5A | EFI-IGP | EFI-IGP |
| 4 | 15A | S-HTR R/L | S-HTR R/L |
| 5 | 7.5A | ECT-IGP | ECT-IGP |
| 6 | 20A | WASHER | Windshield washer |
| 7 | 15A | S/HTR R/R | S/HTR R/R |
| 8 | 7.5A | EFI NO.2 | Multiport fuel injection system |
| 12 | 30A | A/F-MAIN | Air fuel ratio sensor |
| 14 | 30A | ABS NO.2 | Anti-lock braking system |
| 15 | 50A | ABS NO.1 | Anti-lock braking system |
| 16 | 50A | EDU-MAIN | Emissions control system |
| 18 | 30A | ST | Starter system |
| 20 | 30A | EFI MAIN NO.2 | Multiport fuel injection system |
| 22 | 50A | EFI MAIN NO.1 | Multiport fuel injection system |
| 24 | 30A | WIPER | Wipers |
| 25 | 30A | TAIL GATE | TAIL GATE |
| 29 | 20A | IGN/INJ-MAIN | Ignition; Fuel injectors |
| 31 | 10A | S-HORN | Horn / anti-theft deterrent |
| 32 | 15A | MIR MTR | MIR MTR |
| 34 | 25A | EFI MAIN NO.3 | Multiport fuel injection system |
| 36 | 15A | AVS | AVS |
| 37 | 7.5A | 4WD-IGR | 4WD-IGR |
| 40 | 7.5A | ENG-IGR NO.3 | ENG-IGR NO.3 |
| 41 | 7.5A | ENG-IGR NO.2 | ENG-IGR NO.2 |
| 43 | 10A | ETCS | Electronic throttle control system |
| 44 | 15A | STRG ECU | STRG ECU |
| 45 | 7.5A | ECT-B | ECT-B |
| 51 | 10A | INJ | Fuel injectors |
| 52 | 10A | IGN | Ignition |
| 53 | 10A | A/F NO.2 | Air fuel ratio sensor |
| 54 | 10A | A/F NO.1 | Air fuel ratio sensor |
| 55 | 20A | EDU NO.4 | Emissions control system |
| 56 | 20A | EDU NO.3 | Emissions control system |
| 57 | 20A | EDU NO.2 | Emissions control system |
| 58 | 20A | EDU NO.1 | Emissions control system |
| 59 | 7.5A | EFI NO.1 | Multiport fuel injection system |
| 60 | 20A | EFI-B NO.2 | Multiport fuel injection system |
| 61 | 20A | EFI-B NO.1 | Multiport fuel injection system |
| 62 | 20A | EFI-B NO.3 | Multiport fuel injection system |
| 63 | 7.5A | BBC NO.5 | Stop & Start system |
| 64 | 15A | ECT NO.1 | ECT NO.1 |
| 65 | 15A | EFI NO.4 | Multiport fuel injection system |
| 66 | 10A | EFT NO.3 | EFT NO.3 |
| 67 | 7.5A | GRILLE SHUTTER | GRILLE SHUTTER |
No matching fuses in this table.
Frequently Asked Questions
Where is the interior fuse box on the 2022–2026 Toyota Tundra?
The passenger compartment fuse box is located under the dashboard. Check the vehicle’s owner’s manual for the exact access procedure for your trim.
Where are the engine compartment fuse boxes?
The engine compartment fuse and relay boxes are located under the hood. This page provides diagrams and tables for two engine-compartment boxes.
Which fuse powers the 12V outlet?
The passenger-compartment table lists P/OUTLET NO.1 as fuse 37 (15A). Verify the assignment against your vehicle’s fuse-box label before servicing.
Are the fuse diagrams identical for all 2022–2026 Tundra trims?
Not necessarily. Fuse assignments can differ by model year, trim, equipment, hybrid powertrain and market.
Disclaimer: Terminal and wiring-harness assignments vary with equipment, model and market. Some fuse labels require verification against official Toyota documentation.