Toyota Tundra (2003-2006) Fuse Diagram

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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).

Toyota Tundra (2003-2006)

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

Passenger Compartment

  1. ACC Cut Relay
  2. Turn Signal Flasher
  3. Back-Up Light Relay (A/T)
  4. Fuse Box
  5. Stop Light Relay
  6. TVIP ECU
  7. Tire Pressure Monitor ECU
  8. Engine Control Module
  9. 4WD Control ECU
  10. Integration Control and Panel
  11. Transponder Key Computer
  12. Center Airbag Sensor Assembly
  13. Transponder Key Amplifier

 

Passenger Compartment Fuse Box Diagram

The fuse panel is located behind the cover on the driver’s side of the dashboard.

Passenger Compartment Fuse Box Location

Passenger Compartment Fuse Box Diagram

FuseAProtected components
1---
2WIP20Windshield wipers and washer
3TURN5Turn signal lights
4ECU IG5Anti-lock brake system, vehicle stability control system, multiplex communication system, tire pressure warning system
54WD20Four-wheel drive control system, A.D.D. control system
6ACC15Cigarette lighter, audio system, SRS airbag system, power rear view mirrors, "PWR OUTLET 1” and "PWR OUTLET 2” fuses
7GAUGE10Gauges and meters, back-up lights, starting system, air conditioning system, auto anti-glare inside rear view mirror, outside rear view mirror heaters
8IGN5SRS 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
7.52006:
   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
9CARGO LP5Cargo lamp
10TAIL15Tail lights, license plate lights, instrument panel lights, parking lights, glove box light, turn signal lights
11OBD7.5On-board diagnosis system
12HORN10Horns
13STA5Multiport fuel injection system/sequential multiport fuel injection system, gauges and meters
14STOP15Stoplights, high mounted stoplight, anti-lock brake system, vehicle stability control system, towing converter
15POWER30Power door lock system, power windows, power back window, power seat
Relay
R1Integration Relay
R2Power relay

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Engine Compartment

Engine Compartment

  1. Fuse Box
  2. ABS Actuator with ECU
  3. Skid Control ECU with Actuator
  4. Air Injection Control Driver

 

Engine Compartment Fuse Box Diagram

Engine Compartment Fuse Box Location

Engine Compartment Fuse Box Diagram

FuseAProtected components
1MIR HTR15Outside rear view mirror heaters
2FOG15Front fog lights
3TOW BRK30with towing package: Trailer brake controller
4SUB BATT30with towing package: Trailer sub battery
5TOW TAIL30Trailer lights (tail lights)
6---
7---
8---
9PWR OUTLET 115Power outlet
10ECU-B5Vehicle stability control system, front passenger occupant classification system
11H-LP RH10Right-hand headlight (high beam)
12PWR OUTLET 215Power outlet
13DOME10Interior light, personal lights, vanity light, ignition switch light, step light, door courtesy lights, open door warning light
14H-LP LH10Left-hand headlight (high beam)
15EFI №210Multiport fuel injection system/sequential multiport fuel injection system, leak detection pump, emission control system
16RADIO202003-2004: Audio system
252005-2006: Audio system
17HEAD RL10with daytime running light system: Right-hand headlight (low beam)
18A/C10Air conditioning system
19A/F202005-2006: A/F sensor
20HEAD LL10with daytime running light system: Left-hand headlight (low beam)
21ALT-S7.5Charging system
22ETCS102003-2004:
   2UZ-FE: Multiport fuel injection system/sequential multiport fuel injection system, electronic throttle control system
152003-2004:
   5VZ-FE: Multiport fuel injection system/sequential multiport fuel injection system, electronic throttle control system
102005-2006: Multiport fuel injection system/sequential multiport fuel injection system, electronic throttle control system
23HAZ15Emergency flashers, turn signal lights, towing converter
24EFI №120Multiport fuel injection system/sequential multiport fuel injection system, fuel pump, "EFI №2” fuse
25AM230Ignition system, starting system, "IGN” and "STA” fuses
26TOWING30Towing converter
27--Short pin
28AM140Starting system, "ACC”, "WIP”, "4WD”, "ECU-IG”, "GAUGE” and "TURN” fuses
29HTR50Air conditioning system, "A/C” fuse
30J/B50"POWER”, "CARGO LP”, "TAIL”, "OBD”, "HORN” and "STOP” fuses
31ABS 2402003: Anti-lock brake system
502004-2006: Anti-lock brake system, vehicle stability control system
32ABS 3302003-2004: Anti-lock brake system (2004: without vehicle stability control system)
502004:
   with vehicle stability control system: Anti-lock brake system, vehicle stability control system, traction control system
302005-2006: Anti-lock brake system, vehicle stability control system
33ST330Starting system, "STA” fuse
34FL ALT1002003-2005:
   without towing package: "AM1”, "HTR”, "J/B”, "MIR HTR”, "FOG”, "TOW TAIL”, "PWR OUTLET 1” and "PWR OUTLET 2” fuses
1202006:
   without towing package: "AM1”, "HTR”, "J/B”, "MIR HTR”, "FOG”, "TOW TAIL”, "PWR OUTLET 1” and "PWR OUTLET 2” fuses
140with towing package: "AM1”, "HTR”, "J/B”, "MIR HTR”, "FOG”, "TOW BRK”, "SUB BATT”, "TOW TAIL”, "PWR OUTLET 1” and "PWR OUTLET 2” fuses
35---
Relay
R1Daytime running light system (DRL №4)
R2Dimmer
R3Headlight (H-LP)
R4Power outlet (PWR OUTLET)
R5Fog lights
R6Heater
R7Trailer sub battery (SUB BATT)
R8Outside rear view mirror heaters (MIR HTR)
R9Tail lights (TOW TAIL)
R10Air fuel ratio sensor (A/F HTR)
R11Fuel pump (F/PMP)
R12Circuit opening relay (C/OPN)
R13EFI
R14Starter (ST)

 

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