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Fuse box diagram (fuse layout), location, and assignment of fuses and relays Toyota Tundra (Standard and access cab models) (2003, 2004, 2005, 2006).
Checking and Replacing Fuses
The fuses are designed to blow before the entire wiring harness is damaged. If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary.
- Turn the engine switch off and turn off all electrical accessories.
- Open the fuse box cover.
- See diagrams below for details about which fuse to check.
- Remove the fuse.
- Check if the fuse is blown – if the thin wire inside is broken, the fuse has blown.
- Replace the blown fuse with a new fuse of an appropriate amperage rating.
Notice
- Never use a fuse of a higher amperage rating than that indicated, or use any other object in place of a fuse, even as a temporary fix. This can cause extensive damage or even fire.
- Always use a genuine Toyota fuse or equivalent.
- Do not modify the fuses or fuse boxes.
- If the replaced fuse blows again, have the vehicle inspected by any authorized Toyota dealer or repairer, or another duly qualified and equipped professional.
Passenger Compartment
- ACC Cut Relay
- Turn Signal Flasher
- Back-Up Light Relay (A/T)
- Fuse Box
- Stop Light Relay
- TVIP ECU
- Tire Pressure Monitor ECU
- Engine Control Module
- 4WD Control ECU
- Integration Control and Panel
- Transponder Key Computer
- Center Airbag Sensor Assembly
- Transponder Key Amplifier
Passenger Compartment Fuse Box Diagram
The fuse panel is located behind the cover on the driver’s side of the dashboard.
| № | Fuse | A | Protected components |
|---|---|---|---|
| 1 | - | - | - |
| 2 | WIP | 20 | Windshield wipers and washer |
| 3 | TURN | 5 | Turn signal lights |
| 4 | ECU IG | 5 | Anti-lock brake system, vehicle stability control system, multiplex communication system, tire pressure warning system |
| 5 | 4WD | 20 | Four-wheel drive control system, A.D.D. control system |
| 6 | ACC | 15 | Cigarette lighter, audio system, SRS airbag system, power rear view mirrors, "PWR OUTLET 1” and "PWR OUTLET 2” fuses |
| 7 | GAUGE | 10 | Gauges and meters, back-up lights, starting system, air conditioning system, auto anti-glare inside rear view mirror, outside rear view mirror heaters |
| 8 | IGN | 5 | SRS airbag system, multiport fuel injection system/ sequential multiport fuel injection system, discharge warning light, ignition system, vehicle stability control system, front passenger occupant classification system, engine immobilizer system |
| 7.5 | 2006: | ||
| with daytime running light system: SRS airbag system, multiport fuel injection system/ sequential multiport fuel injection system, discharge warning light, ignition system, vehicle stability control system, front passenger occupant classification system, engine immobilizer system | |||
| 9 | CARGO LP | 5 | Cargo lamp |
| 10 | TAIL | 15 | Tail lights, license plate lights, instrument panel lights, parking lights, glove box light, turn signal lights |
| 11 | OBD | 7.5 | On-board diagnosis system |
| 12 | HORN | 10 | Horns |
| 13 | STA | 5 | Multiport fuel injection system/sequential multiport fuel injection system, gauges and meters |
| 14 | STOP | 15 | Stoplights, high mounted stoplight, anti-lock brake system, vehicle stability control system, towing converter |
| 15 | POWER | 30 | Power door lock system, power windows, power back window, power seat |
| R1 | Integration Relay | ||
| R2 | Power relay | ||
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Engine Compartment
- Fuse Box
- ABS Actuator with ECU
- Skid Control ECU with Actuator
- Air Injection Control Driver
Engine Compartment Fuse Box Diagram
| № | Fuse | A | Protected components |
|---|---|---|---|
| 1 | MIR HTR | 15 | Outside rear view mirror heaters |
| 2 | FOG | 15 | Front fog lights |
| 3 | TOW BRK | 30 | with towing package: Trailer brake controller |
| 4 | SUB BATT | 30 | with towing package: Trailer sub battery |
| 5 | TOW TAIL | 30 | Trailer lights (tail lights) |
| 6 | - | - | - |
| 7 | - | - | - |
| 8 | - | - | - |
| 9 | PWR OUTLET 1 | 15 | Power outlet |
| 10 | ECU-B | 5 | Vehicle stability control system, front passenger occupant classification system |
| 11 | H-LP RH | 10 | Right-hand headlight (high beam) |
| 12 | PWR OUTLET 2 | 15 | Power outlet |
| 13 | DOME | 10 | Interior light, personal lights, vanity light, ignition switch light, step light, door courtesy lights, open door warning light |
| 14 | H-LP LH | 10 | Left-hand headlight (high beam) |
| 15 | EFI №2 | 10 | Multiport fuel injection system/sequential multiport fuel injection system, leak detection pump, emission control system |
| 16 | RADIO | 20 | 2003-2004: Audio system |
| 25 | 2005-2006: Audio system | ||
| 17 | HEAD RL | 10 | with daytime running light system: Right-hand headlight (low beam) |
| 18 | A/C | 10 | Air conditioning system |
| 19 | A/F | 20 | 2005-2006: A/F sensor |
| 20 | HEAD LL | 10 | with daytime running light system: Left-hand headlight (low beam) |
| 21 | ALT-S | 7.5 | Charging system |
| 22 | ETCS | 10 | 2003-2004: |
| 2UZ-FE: Multiport fuel injection system/sequential multiport fuel injection system, electronic throttle control system | |||
| 15 | 2003-2004: | ||
| 5VZ-FE: Multiport fuel injection system/sequential multiport fuel injection system, electronic throttle control system | |||
| 10 | 2005-2006: Multiport fuel injection system/sequential multiport fuel injection system, electronic throttle control system | ||
| 23 | HAZ | 15 | Emergency flashers, turn signal lights, towing converter |
| 24 | EFI №1 | 20 | Multiport fuel injection system/sequential multiport fuel injection system, fuel pump, "EFI №2” fuse |
| 25 | AM2 | 30 | Ignition system, starting system, "IGN” and "STA” fuses |
| 26 | TOWING | 30 | Towing converter |
| 27 | - | - | Short pin |
| 28 | AM1 | 40 | Starting system, "ACC”, "WIP”, "4WD”, "ECU-IG”, "GAUGE” and "TURN” fuses |
| 29 | HTR | 50 | Air conditioning system, "A/C” fuse |
| 30 | J/B | 50 | "POWER”, "CARGO LP”, "TAIL”, "OBD”, "HORN” and "STOP” fuses |
| 31 | ABS 2 | 40 | 2003: Anti-lock brake system |
| 50 | 2004-2006: Anti-lock brake system, vehicle stability control system | ||
| 32 | ABS 3 | 30 | 2003-2004: Anti-lock brake system (2004: without vehicle stability control system) |
| 50 | 2004: | ||
| with vehicle stability control system: Anti-lock brake system, vehicle stability control system, traction control system | |||
| 30 | 2005-2006: Anti-lock brake system, vehicle stability control system | ||
| 33 | ST3 | 30 | Starting system, "STA” fuse |
| 34 | FL ALT | 100 | 2003-2005: |
| without towing package: "AM1”, "HTR”, "J/B”, "MIR HTR”, "FOG”, "TOW TAIL”, "PWR OUTLET 1” and "PWR OUTLET 2” fuses | |||
| 120 | 2006: | ||
| without towing package: "AM1”, "HTR”, "J/B”, "MIR HTR”, "FOG”, "TOW TAIL”, "PWR OUTLET 1” and "PWR OUTLET 2” fuses | |||
| 140 | with towing package: "AM1”, "HTR”, "J/B”, "MIR HTR”, "FOG”, "TOW BRK”, "SUB BATT”, "TOW TAIL”, "PWR OUTLET 1” and "PWR OUTLET 2” fuses | ||
| 35 | - | - | - |
| R1 | Daytime running light system (DRL №4) | ||
| R2 | Dimmer | ||
| R3 | Headlight (H-LP) | ||
| R4 | Power outlet (PWR OUTLET) | ||
| R5 | Fog lights | ||
| R6 | Heater | ||
| R7 | Trailer sub battery (SUB BATT) | ||
| R8 | Outside rear view mirror heaters (MIR HTR) | ||
| R9 | Tail lights (TOW TAIL) | ||
| R10 | Air fuel ratio sensor (A/F HTR) | ||
| R11 | Fuel pump (F/PMP) | ||
| R12 | Circuit opening relay (C/OPN) | ||
| R13 | EFI | ||
| R14 | Starter (ST) | ||
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