2004 Toyota Tundra I Fuse Box Diagram
The 2004 Toyota Tundra (I) has 8 fuse boxes. Choose the one you’re looking at.
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Engine compartment fuse box, 2UZ-FE V8 (standard and access cab)
In the engine compartment on the driver's (left) side behind the battery: unclip and lift the cover. Numbered by Toyota from 1; the horizontal MINI fuses stand in two columns, the twelve in the middle on end, with the cartridge fuses (type B) at the top and the alternator fusible link (type C) in the centre. The relays are unlabelled on the plate.
| No. | Function | Amp | Description |
|---|---|---|---|
| 1 | 15 AMINI | MIR HTR - outside rear view mirror heaters | |
| 2 | 15 AMINI | FOG - front fog lights | |
| 3 | 30 AMINI | TOW BRK - trailer brake controller (towing package) | |
| 4 | 30 AMINI | SUB BATT - trailer sub battery charging (towing package) | |
| 5 | 30 AMINI | TOW TAIL - trailer tail lights | |
| 6 | 15 AMINI | PWR OUTLET 1 - power outlet | |
| 7 | 5 AMINI | ECU-B - anti-lock brake system | |
| 8 | 10 AMINI | H-LP RH - right headlight high beam | |
| 9 | 15 AMINI | PWR OUTLET 2 - power outlet | |
| 10 | 10 AMINI | DOME - interior light, personal lights, vanity light, ignition switch light, step light, door courtesy lights, open-door warning light | |
| 11 | 10 AMINI | H-LP LH - left headlight high beam | |
| 12 | 10 AMINI | EFI NO.2 - fuel injection and emission control | |
| 13 | 20 AMINI | RADIO - audio system | |
| 14 | 10 AMINI | HEAD RL - right headlight low beam (with daytime running lights) | |
| 15 | 10 AMINI | A/C - air conditioning system | |
| 16 | 10 AMINI | HEAD LL - left headlight low beam (with daytime running lights) | |
| 17 | 7.5 AMINI | ALT-S - charging system (alternator sense) | |
| 18 | 10 AMINI | ETCS - electronic throttle control and fuel injection (2UZ-FE V8; the V6 uses fuse 23 in this socket) | |
| 19 | 15 AMINI | HAZ - emergency flashers | |
| 20 | 20 AMINI | EFI NO.1 - fuel injection, fuel pump; also feeds the EFI NO.2 fuse | |
| 21 | 30 AMINI | AM2 - ignition and starting systems; feeds the IGN and STA fuses | |
| 22 | 30 AMINI | TOWING - towing converter | |
| 37 | 40 AJCASE | AM1 - starting system; feeds the ACC, WIP, 4WD, ECU-IG, GAUGE and TURN fuses (cartridge fuse) | |
| 38 | 50 AJCASE | HTR - air conditioning and heater blower; feeds the A/C fuse (cartridge fuse) | |
| 39 | 50 AJCASE | J/B - junction block supply: feeds the POWER, CARGO LP, TAIL, OBD, HORN and STOP fuses (cartridge fuse) | |
| 40 | 50 AJCASE | ABS 2 - anti-lock brake system, vehicle stability control (cartridge fuse) | |
| 41 | 30 AJCASE | ABS 3 - anti-lock brake system, VSC and traction control (cartridge fuse): 30 A without / 50 A with vehicle stability control | |
| 42 | 30 AJCASE | ST3 - starting system; feeds the STA fuse (cartridge fuse, 2UZ-FE V8 only) | |
| 44 | 100 AJCASE | FL ALT - alternator fusible link (cartridge type C): 100 A without / 140 A with the towing package; feeds AM1, HTR, J/B, MIR HTR, FOG, TOW BRK, SUB BATT, TOW TAIL and the PWR OUTLET fuses |
Engine compartment fuse box, 5VZ-FE V6 (standard and access cab)
In the engine compartment on the driver's (left) side behind the battery: unclip and lift the cover. Numbered by Toyota from 1; the horizontal MINI fuses stand in two columns, the twelve in the middle on end, with the cartridge fuses (type B) at the top and the alternator fusible link (type C) in the centre. The relays are unlabelled on the plate.
| No. | Function | Amp | Description |
|---|---|---|---|
| 1 | 15 AMINI | MIR HTR - outside rear view mirror heaters | |
| 2 | 15 AMINI | FOG - front fog lights | |
| 5 | 30 AMINI | TOW TAIL - trailer tail lights | |
| 6 | 15 AMINI | PWR OUTLET 1 - power outlet | |
| 7 | 5 AMINI | ECU-B - anti-lock brake system | |
| 8 | 10 AMINI | H-LP RH - right headlight high beam | |
| 9 | 15 AMINI | PWR OUTLET 2 - power outlet | |
| 10 | 10 AMINI | DOME - interior light, personal lights, vanity light, ignition switch light, step light, door courtesy lights, open-door warning light | |
| 11 | 10 AMINI | H-LP LH - left headlight high beam | |
| 12 | 10 AMINI | EFI NO.2 - fuel injection and emission control | |
| 13 | 20 AMINI | RADIO - audio system | |
| 14 | 10 AMINI | HEAD RL - right headlight low beam (with daytime running lights) | |
| 15 | 10 AMINI | A/C - air conditioning system | |
| 16 | 10 AMINI | HEAD LL - left headlight low beam (with daytime running lights) | |
| 17 | 7.5 AMINI | ALT-S - charging system (alternator sense) | |
| 19 | 15 AMINI | HAZ - emergency flashers | |
| 20 | 20 AMINI | EFI NO.1 - fuel injection, fuel pump; also feeds the EFI NO.2 fuse | |
| 21 | 30 AMINI | AM2 - ignition and starting systems; feeds the IGN and STA fuses | |
| 22 | 30 AMINI | TOWING - towing converter | |
| 23 | 15 AMINI | ETCS - electronic throttle control and fuel injection (5VZ-FE V6; the V8 uses fuse 18 in this socket) | |
| 37 | 40 AJCASE | AM1 - starting system; feeds the ACC, WIP, 4WD, ECU-IG, GAUGE and TURN fuses (cartridge fuse) | |
| 38 | 50 AJCASE | HTR - air conditioning and heater blower; feeds the A/C fuse (cartridge fuse) | |
| 39 | 50 AJCASE | J/B - junction block supply: feeds the POWER, CARGO LP, TAIL, OBD, HORN and STOP fuses (cartridge fuse) | |
| 40 | 50 AJCASE | ABS 2 - anti-lock brake system, vehicle stability control (cartridge fuse) | |
| 41 | 30 AJCASE | ABS 3 - anti-lock brake system, VSC and traction control (cartridge fuse): 30 A without / 50 A with vehicle stability control | |
| 44 | 100 AJCASE | FL ALT - alternator fusible link (cartridge type C): 100 A without / 140 A with the towing package; feeds AM1, HTR, J/B, MIR HTR, FOG, TOW BRK, SUB BATT, TOW TAIL and the PWR OUTLET fuses |
Instrument panel fuse box (standard and access cab)
Under the instrument panel on the driver's side, left of the steering column: pull the cover off the opening to reach the block. Three columns of MINI blade fuses with the POWER cartridge fuse above them; numbering continues from the engine compartment box.
| No. | Function | Amp | Description |
|---|---|---|---|
| 24 | 20 AMINI | WIP - windshield wipers and washer | |
| 25 | 5 AMINI | TURN - turn signal lights | |
| 26 | 5 AMINI | ECU IG - anti-lock brake system and cruise control | |
| 27 | 20 AMINI | 4WD - four-wheel drive control and A.D.D. (automatic disconnecting differential) control | |
| 28 | 15 AMINI | ACC - cigarette lighter, audio system, SRS airbag system, power mirrors; feeds the PWR OUTLET 1 and 2 fuses | |
| 29 | 10 AMINI | GAUGE - gauges and meters, back-up lights, starting system, air conditioning | |
| 30 | 5 AMINI | IGN - SRS airbag system, fuel injection, discharge warning light and ignition system | |
| 31 | 5 AMINI | CARGO LP - cargo lamp | |
| 32 | 15 AMINI | TAIL - tail lights, license plate lights, instrument panel lights, parking lights, glove box light | |
| 33 | 7.5 AMINI | OBD - on-board diagnosis connector | |
| 34 | 10 AMINI | HORN - horns | |
| 35 | 5 AMINI | STA - fuel injection system, gauges and meters (starter signal) | |
| 36 | 15 AMINI | STOP - stop lights and high-mounted stop light | |
| 43 | 30 AJCASE | POWER - power door locks, power windows and power seat (cartridge fuse) |
Engine compartment main fuse box (double cab)
Double cab: the main fuse box at the front of the engine compartment on the passenger's (right) side, under a clipped cover. Cartridge fuses and the alternator fusible link at the left, a block of MINI blade fuses at the right, the spare fuses standing on end at the bottom.
| No. | Function | Amp | Description |
|---|---|---|---|
| 10 | 7.5 AMINI | CARGO LP - cargo lamp | |
| 11 | 15 AMINI | SPARE - spare fuse, 15 A | |
| 12 | 20 AMINI | SPARE - spare fuse, 20 A | |
| 13 | 30 AMINI | SPARE - spare fuse, 30 A | |
| 14 | 10 AMINI | ETCS - electronic throttle control and fuel injection | |
| 15 | 20 AMINI | EFI NO.1 - fuel injection and electronic throttle control | |
| 16 | 15 AMINI | H-LP RH - right headlight (without daytime running lights) | |
| 17 | 30 AMINI | TOWING - trailer stop lights and turn signal lights | |
| 18 | 7.5 AMINI | ALT-S - charging system (alternator sense) | |
| 19 | 15 AMINI | DRL - daytime running light system; on trucks without it this socket is H-LP LH 15 A, the left headlight | |
| 20 | 25 AMINI | AM2 - starting system | |
| 21 | 20 AMINI | TURN-HAZ - turn signal lights and emergency flashers | |
| 22 | 20 AMINI | RAD NO.3 - audio/video system | |
| 23 | 30 AMINI | ST - starting system; feeds the STA fuse | |
| 24 | 10 AMINI | HORN - horns | |
| 25 | 10 AMINI | EFI NO.2 - fuel injection and electronic throttle control | |
| 26 | 10 AMINI | DOME - center interior and personal lights, gauges and meters, clock, ignition switch light, door courtesy lights, step light, vanity lights | |
| 27 | 7.5 AMINI | ECU-B - multiplex communication (door locks, security, light auto-cut, illuminated entry, DRL), door lock system, gauges, wireless door lock, VSC, courtesy lights | |
| 28 | 15 AMINI | MIR HTR - outside rear view mirror heaters | |
| 29 | 25 AMINI | RAD NO.1 - audio system | |
| 54 | 30 AJCASE | ABS NO.1 - anti-lock brake system (cartridge fuse): 30 A without / 50 A with vehicle stability control | |
| 55 | 50 AJCASE | HEATER - air conditioning and heater blower (cartridge fuse) | |
| 56 | 40 AJCASE | DEFOG - rear window defogger (cartridge fuse) | |
| 57 | 40 AJCASE | MAIN - headlight supply: feeds the H-LP RH, H-LP LH, H-LP LL and H-LP RL fuses (cartridge fuse) | |
| 58 | 30 AJCASE | DOOR NO.2 - multiplex communication: power door locks and security system (cartridge fuse) | |
| 62 | 140 AJCASE | ALT - alternator fusible link (cartridge type C): feeds DEFOG, ABS NO.1, CARGO LP, HEATER, AM1, PWR SEAT, TAIL, STOP, SUN ROOF, PANEL, OBD, FOG, the PWR, AC INV, SEAT HTR and towing fuses | |
| 63 | 60 AJCASE | ABS NO.2 - anti-lock brake system, vehicle stability control, traction control (cartridge type C) |
Engine compartment relay box (double cab)
Double cab: the relay box at the rear of the engine compartment on the passenger's (right) side, under its own cover. The headlight and A/C fuses stand on end at the right-hand end, the relays are unlabelled on the plate.
| No. | Function | Amp | Description |
|---|---|---|---|
| 1 | 10 AMINI | H-LP RH - right headlight high beam (with daytime running lights) | |
| 2 | 10 AMINI | H-LP LH - left headlight high beam (with daytime running lights) | |
| 3 | 7.5 AMINI | A/C - air conditioning system | |
| 4 | 10 AMINI | H-LP RL - right headlight low beam (with daytime running lights) | |
| 5 | 10 AMINI | H-LP LL - left headlight low beam (with daytime running lights) |
Engine compartment towing fuse box (double cab)
Double cab: the small box on the driver's (left) side of the engine compartment with the trailer fuses (and, in 2004, the rear seat entertainment fuse) standing on end beside two relays.
| No. | Function | Amp | Description |
|---|---|---|---|
| 6 | 7.5 AMINI | RSE - rear seat audio and rear seat entertainment system | |
| 7 | 30 AMINI | TOWING TAIL - trailer tail lights | |
| 8 | 30 AMINI | BATT CHARGE - trailer sub battery charging | |
| 9 | 30 AMINI | TOWING BRK - trailer brake controller |
Front passenger's cowl panel fuse holder (double cab)
Double cab, 2004 only: a single-fuse holder behind the front passenger's side cowl panel (kick panel), next to a relay; it holds the STA fuse.
| No. | Function | Amp | Description |
|---|---|---|---|
| 30 | 7.5 AMINI | STA - starting system; the single fuse in the front passenger side cowl panel holder |
Instrument panel fuse box (double cab)
Double cab: under the instrument panel on the driver's side, left of the steering column, behind the removable cover. Four columns of MINI blade fuses and three cartridge fuses below them; numbering continues from the engine compartment boxes.
| No. | Function | Amp | Description |
|---|---|---|---|
| 31 | 15 AMINI | TAIL - tail lights, trailer tail lights, parking lights, license plate lights, fuel injection system | |
| 32 | 10 AMINI | ECU-IG - charging, cruise control, ABS, VSC, traction control, automatic transmission, moon roof, door locks, gauges, multi-information display, power outlets | |
| 33 | 25 AMINI | WSH - wipers and washer | |
| 34 | 15 AMINI | AC INV - power outlets (AC inverter) | |
| 35 | 20 AMINI | IGN 2 - starting system and fuel injection | |
| 36 | 20 AMINI | PWR NO.3 - rear right power window | |
| 37 | 20 AMINI | PWR NO.4 - rear left power window | |
| 38 | 15 AMINI | CIG - cigarette lighter | |
| 39 | 7.5 AMINI | RAD NO.2 - audio/video system, rear seat entertainment, power mirror control, power outlets, multiplex communication, clock, shift position indicator lights | |
| 40 | 20 AMINI | 4WD - four-wheel drive and A.D.D. (automatic disconnecting differential) control | |
| 41 | 15 AMINI | STOP - stop lights, high-mounted stop lights, fuel injection, VSC and traction control, trailer stop lights, trailer brake controller, multiplex communication | |
| 42 | 7.5 AMINI | OBD - on-board diagnosis connector | |
| 43 | 7.5 AMINI | PANEL - instrument panel, glove box, seat heater switch, cigarette lighter and ashtray lights, multi-information display, audio, gauges, air conditioning, power outlets | |
| 44 | 25 AMINI | PWR NO.1 - driver's door lock and power window | |
| 45 | 25 AMINI | WIP - wipers and washers | |
| 46 | 10 AMINI | IGN 1 - charging system, SRS airbag system, fuel injection, vehicle stability control | |
| 47 | 25 AMINI | SUN ROOF - electric moon roof | |
| 48 | 25 AMINI | PWR NO.2 - front passenger's door lock and power window | |
| 49 | 10 AMINI | HTR - air conditioning, electric cooling fan, rear window defogger, outside mirror heater, seat heaters | |
| 50 | 15 AMINI | FOG - front fog lights | |
| 51 | 15 AMINI | GAUGE - back-up lights, gauges and meters, emergency flashers, slip indicator, VSC, four-wheel drive, trailer back-up lights, fuel injection, shift position lights | |
| 52 | 15 AMINI | PWR OUTLET - power outlets | |
| 53 | 15 AMINI | SEAT HTR - seat heaters | |
| 59 | 30 AJCASE | PWR SEAT - power front seats (cartridge fuse) | |
| 60 | 40 AJCASE | AM1 - feeds the HTR, CIG, GAUGE, RAD NO.2, ECU-IG, WIP, WSH and 4WD fuses (cartridge fuse) | |
| 61 | 30 AJCASE | PWR NO.5 - power rear window (cartridge fuse) |