Toyota Tundra (2003 – 2004) – fuse box diagram

Year of production: 2003, 2004

Engine compartment (2UZ- FE engine)

Engine compartment (5VZ- FE engine)

Instrument panel

Fuses (type A)

Fuse		Ampere rating [A]	Circuit
1	MIR HTR	15	Outside rear view mirror heaters
2	FOG	15	Front fog lights
3	TOW BRK	30	Trailer brake controller
4	SUB BATT	30	Trailer sub battery
5	TOW TAIL	30	Trailer lights (tail lights)
6	PWR OUTLET 1	15	Power outlet
7	ECU–B	5	Anti–lock brake system
8	H–LP RH	10	Right–hand headlight (high beam)
9	PWR OUTLET 2	15	Power outlet
10	DOME	10	Interior light, personal lights, vanity light, ignition switch light, step light, door courtesy lights, open door warning light
11	H–LP LH	10	Left–hand headlight (high beam)
12	EFI NO.2	10	Multiport fuel injection system/sequential multiport fuel injection system, emission control system
13	RADIO	20	Audio system
14	HEAD RL	10 (with daytime running light system)	Right–hand headlight (low beam)
15	A/C	10	Air conditioning system
16	HEAD LL	10 (with daytime running light system)	Left–hand headlight (low beam)
17	ALT–S	7,5	Charging system
18	ETCS	10 (2UZ–FE engine)	Multiport fuel injection system/sequential multiport fuel injection system, electronic throttle control system
19	HAZ	15	Emergency flashers
20	EFI NO. 1	20	Multiport fuel injection system/sequential multiport fuel injection system, fuel pump, “EFI NO.2” fuse
21	AM2	30	Ignition system, starting system, “IGN” and “STA” fuses
22	TOWING	30	Towing converter
23	ETCS	15 (5VZ–FE engine)	Multiport fuel injection system/sequential multiport fuel injection system, electronic throttle control system
24	WIP	20	Windshield wipers and washer
25	TURN	5	Turn signal lights
26	ECU IG	5	Anti–lock brake system, cruise control system
27	4WD	20	Four–wheel drive control system, A.D.D. control system
28	ACC	15	Cigarette lighter, audio system, SRS airbag system, power rear view mirrors, “PWR OUTLET 1” and “PWR OUTLET 2” fuses
29	GAUGE	10	Gauges and meters, back–up lights, starting system, air conditioning system
30	IGN	5	SRS airbag system, multiport fuel injection system/sequential multiport fuel injection system, discharge warning light, ignition system
31	CARGO LP	5	Cargo lamp
32	TAIL	15	Tail lights, license plate lights, instrument panel lights, parking lights, glove box light
33	OBD	7,5	On–board diagnosis system
34	HORN	10	Horns
35	STA	5	Multiport fuel injection system/sequential multiport fuel injection system, gauges and meters
36	STOP	15	Stoplights, high mounted stoplight

Fuses (type B)

Fuse		Ampere rating [A]	Circuit
37	AM1	40	Starting system, “ACC”, “WIP”, “4WD”, “ECU–IG”, “GAUGE” and “TURN” fuses
38	HTR	50	Air conditioning system, “A/C” fuse
39	J/B	50	“POWER”, “CARGO LP”, “TAIL”, “OBD”, “HORN” and “STOP” fuses
40	ABS 2	40	Anti–lock brake system
41	ABS 3	30	Anti–lock brake system
42	ST3	30	Starting system, “STA” fuse
43	POWER	30	Power door lock system, power windows and power seat

Fuse (type C)

Fuse		Ampere rating [A]	Circuit
44	FL ALT	100 (without towing package)	“AM1”, “HTR”, “J/B”, “MIR HTR”, “FOG”, “TOW BRK”, “SUB BATT”, “TOW TAIL”, “PWR OUTLET 1” and “PWR OUTLET 2” fuses
		140 (with towing package)

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.