2008 Toyota Tundra II Fuse Box Diagram
The 2008 Toyota Tundra (II) has 2 fuse boxes. Choose the one you’re looking at.
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Engine compartment fuse box
Toyota's second printing of the XK50 fuse pages, OM34477U for trucks built from April 2008, repeats the first: one number sequence over both carriers, of which this one owns 1 to 34 (blades), 60 to 65 (the fusible-link elements) and 66 to 70 (the cartridges). Find it in the engine compartment on the driver's side against the battery and open it by pushing the lid's tab in. Plate XS73034 shows four blades alone across the top, three spares in the top right corner, two groups of blades in the middle and at the right, DEFOG and SUB BATT in the row beneath them, ABS1, ABS2 and ST at the middle group's side, and the six-element link block occupying the lower left. The relay housings are drawn unnamed, because the manual names none.
| No. | Function | Amp | Description |
|---|---|---|---|
| 1 | 15 AMINI | A/F: air-fuel ratio sensor heaters (fuel injection system) | |
| 2 | 10 AMINI | HORN: horn | |
| 3 | 25 AMINI | EFI NO.1: engine fuel injection system, main supply | |
| 4 | 30 AMINI | IG2 MAIN: feeds the INJ, MET and IGN fuses | |
| 5 | 20 AMINI | DEICER: front window de-icer | |
| 6 | 30 AMINI | TOW TAIL: trailer tail lights | |
| 7 | 30 AMINI | POWER NO.2: power back window (rear sliding window) | |
| 8 | 15 AMINI | FOG: front fog lights | |
| 9 | 15 AMINI | STOP: stop lights and high-mounted stop light; also feeds VSC, ABS, the shift lock, the fuel injection system and the towing converter | |
| 10 | 30 AMINI | TOW BRK: trailer brake controller | |
| 11 | 7.5 AMINI | IMB: engine immobilizer system | |
| 12 | 7.5 AMINI | AM2: starting system (ignition switch AM2 feed) | |
| 13 | 30 AMINI | TOWING: towing converter (trailer wiring) | |
| 14 | 5 AMINI | ALT-S: charging system (alternator sense) | |
| 15 | 15 AMINI | TURN-HAZ: turn signal lights, hazard flashers, towing converter | |
| 16 | 15 AMINI | F/PMP: 15 A fuse fitted, no circuit assigned on this model year (Toyota table) | |
| 17 | 10 AMINI | ETCS: electronic throttle control system, fuel injection system | |
| 18 | 5 AMINI | MET-B: gauges and meters (battery feed) | |
| 19 | 30 AMINI | AMP: audio amplifier - audio system, rear view monitor, navigation, rear seat entertainment | |
| 20 | 15 AMINI | RAD NO.1: audio system, rear view monitor, navigation, rear seat entertainment | |
| 21 | 7.5 AMINI | ECU-B1: battery feed for the multiplex (body) network, fuel injection system, auto-dimming mirror, power outlets, driver power seat, tilt and telescopic steering | |
| 22 | 7.5 AMINI | DOME: interior, personal and vanity lights, engine switch light, foot and door courtesy lights, accessory meter | |
| 23 | 15 AMINI | HEAD LH: left headlight high beam | |
| 24 | 15 AMINI | HEAD LL: left headlight low beam | |
| 25 | 10 AMINI | INJ: fuel injection and ignition system | |
| 26 | 7.5 AMINI | MET: gauges and meters | |
| 27 | 10 AMINI | IGN: SRS airbag system, fuel injection system, engine immobilizer, cruise control | |
| 28 | 15 AMINI | HEAD RH: right headlight high beam | |
| 29 | 15 AMINI | HEAD RL: right headlight low beam | |
| 30 | 10 AMINI | EFI NO.2: fuel injection system, evaporative leak detection pump | |
| 31 | 5 AMINI | DEF I/UP: 5 A fuse fitted, no circuit assigned (Toyota table) | |
| 32 | 5 AMINI | SPARE: spare 5 A fuse | |
| 33 | 15 AMINI | SPARE: spare 15 A fuse | |
| 34 | 30 AMINI | SPARE: spare 30 A fuse | |
| 60 | 50 AJCASE | HTR: air conditioning blower | |
| 61 | 150 AJCASE | LH-J/B: main feed of the instrument panel fuse box (AM1, TAIL, PANEL, ACC, CIG, LH-IG, 4WD, ECU-IG, BK/UP LP, SEAT-HTR, A/C, WSH, WIPER, OBD, seat, mirror, door lock, cargo lamp, outlet and POWER No.1 fuses) | |
| 62 | 140 AJCASE | ALT: alternator output - 180 A with the 5.7 V8 and towing package, 140 A otherwise; feeds LH-J/B, HTR, SUB BATT, TOW BRK, STOP, FOG, TOW TAIL and DEICER. Replace only with the same rating | |
| 63 | 50 AJCASE | A/PUMP NO.1: secondary air injection pump 1 (fuel injection system) | |
| 64 | 50 AJCASE | A/PUMP NO.2: secondary air injection pump 2 (fuel injection system) | |
| 65 | 40 AJCASE | MAIN: feeds the HEAD LL, HEAD RL, HEAD LH and HEAD RH fuses | |
| 66 | 40 AJCASE | DEFOG: rear window defogger | |
| 67 | 40 AJCASE | SUB BATT: trailer towing (trailer battery charge feed) | |
| 68 | 50 AJCASE | ABS1: anti-lock brakes and vehicle stability control | |
| 69 | 40 AJCASE | ABS2: anti-lock brakes and vehicle stability control | |
| 70 | 30 AJCASE | ST: starting system |
Instrument panel fuse box
Plate XS73028 is reprinted for 2008 with the same blade numbers, 35 to 59, and the same cartridge 71, so a 2008 truck's cab box is read exactly as a 2007 one. It lives under the driver's side of the instrument panel and is reached from the footwell once the lid is removed: two rows of full-size blades, both filled from the left, with POWER No.1 standing in the upper row.
| No. | Function | Amp | Description |
|---|---|---|---|
| 35 | 15 AATO | 115 V AC power outlet (inverter) | |
| 36 | 30 AATO | FR P/SEAT LH: driver's power seat | |
| 37 | 25 AATO | DR/LCK: door locks (multiplex body network) | |
| 38 | 7.5 AATO | OBD: on-board diagnostics connector | |
| 39 | 15 AATO | PWR OUTLET: 12 V power outlets | |
| 40 | 7.5 AATO | CARGO LP: cargo bed lamp | |
| 41 | 7.5 AATO | AM1: shift lock system, starting system | |
| 42 | 7.5 AATO | A/C: air conditioning system | |
| 43 | 15 AATO | MIR: outside mirror control and mirror heaters | |
| 44 | 30 AATO | FR P/SEAT RH: front passenger power seat | |
| 45 | 15 AATO | TI&TE: power tilt and telescopic steering column | |
| 46 | 25 AATO | S/ROOF: electric moon roof | |
| 47 | 7.5 AATO | ECU-IG No.1: ignition feed for ABS/VSC, body network, parking assist, driver seat, tilt/telescopic column, shift lock, tire pressure warning, accessory meter, trailer towing, power outlet, moon roof | |
| 48 | 7.5 AATO | LH-IG: back-up lights, charging system, gauges, turn signals, air conditioning, seat heaters, rear defogger | |
| 49 | 20 AATO | 4WD: four-wheel drive control system | |
| 50 | 20 AATO | WSH: windshield washer | |
| 51 | 30 AATO | WIPER: windshield wipers and washer | |
| 52 | 7.5 AATO | ECU-IG No.2: multiplex (body) communication system | |
| 53 | 15 AATO | TAIL: tail lights, parking lights, trailer tail lights, outside mirror lights | |
| 54 | 10 AATO | A/C IG: air conditioning system (ignition feed) | |
| 55 | 20 AATO | SEAT-HTR: seat heaters | |
| 56 | 7.5 AATO | PANEL: illumination of the instrument panel, glove box, ashtray, accessory meter, audio, navigation, rear seat entertainment, gauges and A/C controls | |
| 57 | 7.5 AATO | ACC: accessory feed for the accessory meter, audio, rear seat entertainment, rear view monitor, navigation, back-up lights, trailer back-up lights, body network, power outlet and outside mirrors | |
| 58 | 10 AATO | BK/UP LP: back-up lights, gauges and meters | |
| 59 | 15 AATO | CIG: cigarette lighter | |
| 71 | 30 AJCASE | POWER No.1: power windows and power back window |