2017 Toyota Tundra II Fuse Box Diagram

The 2017 Toyota Tundra (II) has 2 fuse boxes. Choose the one you’re looking at.

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Engine compartment fuse box

On the driver's side of the engine compartment next to the battery, under a lid: push the tab in and lift the lid off. Only the small blade fuses (type A) come out with the pull-out tool clipped inside; the cartridge fuses are dealer items in Toyota's manual. The 2017 manual prints no fuse table and the cover sticker (82661-0C300) prints names and ratings only, so the numbers here are ours: the 2013 manual's numbers for the sockets it numbered, and 48 (LED DRL), 49 (4WD) and 50 (SHORT PIN) for the three sockets the facelift populated. Layout as the plate draws it: four blade fuses along the top, the three spares at the top right, two blocks of blade fuses in the middle and right, the DEFOG/SUB BATT cartridges in the second row, ABS1/ABS2/ST beside the middle block, and the fusible-link block (HTR, LH-J/B, ALT, the two A/PUMP and MAIN) at the lower left. Relay housings are drawn where the plate draws them, without names (Toyota prints none for this box).

No.	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 windshield wiper de-icer
6	30 AMINI	TOW TAIL: trailer tail lights
7	25 AMINI	POWER NO.4: power windows
8	30 AMINI	POWER NO.2: power back window (rear sliding window)
9	15 AMINI	FOG: front fog lights
10	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
11	30 AMINI	TOW BRK: trailer brake controller
12	7.5 AMINI	IMB: fuel injection system (engine immobilizer feed)
13	7.5 AMINI	AM2: starting system (ignition switch AM2 feed)
14	30 AMINI	TOWING: towing converter (trailer wiring)
15	10 AMINI	AI-HTR: secondary air injection system
16	5 AMINI	ALT-S: charging system (alternator sense)
17	15 AMINI	TURN-HAZ: turn signal lights, hazard flashers, towing converter
18	25 AMINI	F/PMP: fuel pump
19	10 AMINI	ETCS: electronic throttle control system, fuel injection system
20	5 AMINI	MET-B: gauges and meters (battery feed)
21	30 AMINI	AMP: audio amplifier - audio system, rear view monitor, navigation, rear seat entertainment
22	20 AMINI	RAD NO.1: audio system, rear view monitor, navigation, rear seat entertainment (20 A on the facelift cover; 15 A in the 2013 manual)
23	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
24	7.5 AMINI	DOME: interior, personal and vanity lights, engine switch light, foot and door courtesy lights, accessory meter
25	15 AMINI	HEAD LH: left headlight high beam
26	15 AMINI	HEAD LL: left headlight low beam
27	10 AMINI	INJ: fuel injection and ignition system
28	7.5 AMINI	MET: gauges and meters
29	10 AMINI	IGN: SRS airbag system, fuel injection system, cruise control
30	15 AMINI	HEAD RH: right headlight high beam
31	15 AMINI	HEAD RL: right headlight low beam
32	10 AMINI	EFI NO.2: fuel injection system, evaporative leak detection pump
33	5 AMINI	DEF I/UP: 5 A fuse fitted, no circuit assigned (Toyota table)
34	5 AMINI	SPARE: spare 5 A fuse
35	15 AMINI	SPARE: spare 15 A fuse
36	30 AMINI	SPARE: spare 30 A fuse
37	40 AJCASE	DEFOG: rear window defogger
38	40 AJCASE	SUB BATT: trailer towing (trailer battery charge feed)
39	50 AJCASE	ABS1: anti-lock brakes and vehicle stability control
40	40 AJCASE	ABS2: anti-lock brakes and vehicle stability control
41	30 AJCASE	ST: starting system
42	50 AJCASE	HTR: air conditioning blower
43	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)
44	140 AJCASE	ALT: alternator output - 180 A with the 5.7 V8 and towing package, 140 A otherwise (2013 manual; the 2014 cover photo is cut off at this position). Replace only with the same rating
45	50 AJCASE	A/PUMP NO.1: secondary air injection pump 1 (fuel injection system)
46	50 AJCASE	A/PUMP NO.2: secondary air injection pump 2 (fuel injection system)
47	40 AJCASE	MAIN: feeds the HEAD LL, HEAD RL, HEAD LH and HEAD RH fuses
48	7.5 AMINI	LED DRL: LED daytime running lights
49	20 AMINI	4WD: four-wheel drive control system (moved here from the instrument panel box with the facelift)
50		SHORT PIN: a jumper (short pin), not a fuse - do not fit a fuse here

Instrument panel fuse box

Under the instrument panel on the driver's side: lie in the footwell and look up; remove the lid to reach the fuses. The 2017 manual prints no fuse table and the cover sticker prints names and ratings only, so the numbers here are ours: the 2010 manual's numbers 1-28 for the sockets it numbered (16 is now ECU-IG1 No.3 instead of 4WD) and 29 for ECU-IG1 No.4 in the socket at the lower left, which the facelift populated. Two rows of blade fuses with the POWER No.1 cartridge in the upper row; both rows read left to right.

No.	Amp	Description
1	15 AATO	115 V AC power outlet (inverter)
2	30 AATO	FR P/SEAT LH: driver's power seat
3	25 AATO	DR/LCK: door locks (multiplex body network)
4	7.5 AATO	OBD: on-board diagnostics connector
5	15 AATO	PWR OUTLET: 12 V power outlets
6	7.5 AATO	CARGO LP: cargo bed lamp
7	7.5 AATO	AM1: shift lock system, starting system
8	7.5 AATO	A/C: air conditioning system
9	15 AATO	MIR: outside mirror control and mirror heaters
10	20 AATO	POWER No.3: power windows
11	30 AATO	FR P/SEAT RH: front passenger power seat
12	15 AATO	TI&TE: power tilt and telescopic steering column
13	25 AATO	S/ROOF: electric moon roof
14	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
15	7.5 AATO	LH-IG: back-up lights, charging system, gauges, turn signals, air conditioning, seat heaters, rear defogger
16	7.5 AATO	ECU-IG1 No.3: ignition-switched feed to control units (name and rating from the cover; Toyota publishes no circuit list for this model year)
17	20 AATO	WSH: windshield washer
18	30 AATO	WIPER: windshield wipers and washer
19	7.5 AATO	ECU-IG No.2: multiplex (body) communication system
20	15 AATO	TAIL: tail lights, parking lights, trailer tail lights, outer foot lights
21	10 AATO	A/C IG: air conditioning system (ignition feed)
22	7.5 AATO	TOW BK/UP: trailer back-up lights
23	20 AATO	SEAT-HTR: seat heaters, or heated and ventilated seats
24	7.5 AATO	PANEL: illumination of the instrument panel, glove box, ashtray, accessory meter, audio, navigation, rear seat entertainment, gauges and A/C controls
25	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
26	10 AATO	BK/UP LP: back-up lights, gauges and meters
27	15 AATO	CIG: cigarette lighter
28	30 AJCASE	POWER No.1: power windows and power back window
29	7.5 AATO	ECU-IG1 No.4: ignition-switched feed to control units (name and rating from the cover; Toyota publishes no circuit list for this model year)