Toyota 4Runner (2003) – fuse box diagram

Year of production: 2003

Engine compartment

Instrument panel

Fuse (type A)

Fuse		Ampere rating [A]	Functions
1	SPARE	10	Spare fuse
2	SPARE	15	Spare fuse
3	STOP	10	Stop/tail lights, high mounted stoplight, shift lock control system, anti–lock brake system, traction control system (two–wheel drive models), active traction control system (four–wheel drive models), vehicle skid control system, rear height control air suspension, multiport fuel injection system/sequential multiport fuel injection system, trailer brake controller, trailer lights (tail lights)
4	AC115V INV	15	AC inverter
5	FR FOG	15	Front fog lights
6	OBD	7,5	On- board diagnosis system
7	HEAD (LO RH)	10	Right–hand headlight (low beam)
8	HEAD (LO LH)	10	Left–hand headlight (low beam)
9	HEAD (HI RH)	10	Right–hand headlight (high beam)
10	HEAD (HI LH)	10	Left–hand headlight (high beam)
11	EFI NO.2	10	Multiport fuel injection system/sequential multiport fuel injection system
12	HEATER NO.2	7,5	Air conditioning system
13	AIRSUS NO.2	10	Rear height control air suspension
14	SEAT HEATER	25	Seat heaters
15	DEFOG	30	Rear window defogger, multiport fuel injection system/sequential multiport fuel injection system
16	MIR HTR	10	Outside rear view mirror heater
17	DOME	10	Interior light, personal lights, wireless remote control system, door courtesy lights, rear seat audio system, gauge and meter, vanity lights, instrument panel lights, running board lights, multiplex communication system
18	RADIO NO.1	20	Audio system, navigation system
19	ECU–B	10	Anti–lock brake system, navigation system, traction control system (two–wheel drive models), active traction control system (four–wheel drive models), vehicle skid control system, air conditioning system, multiplex communication system, theft deterrent system
20	ALT-S	7,5	Charging system
21	HORN	10	Horns
22	A/F HEATER	15	No circuit
23	TRN–HAZ	15	Turn signal lights, emergency flashers
24	ETCS	10	Multiport fuel injection system/sequential multiport fuel injection system
25	EFI	25	Multiport fuel injection system/sequential multiport fuel injection system
26	DR/LCK	20	Power door lock system
27	TOWING	30	Towing converter
28	RADIO NO.2	20	Audio system
29	IGN	10	Multiport fuel injection system/sequential multiport fuel injection system, anti–lock brake system, traction control system (two–wheel drive models), active traction control system (four–wheel drive models), vehicle skid control system, stop light, meter and gauge
30	SRS	10	SRS airbag system
31	GAUGE	7,5	Meter and gauge
32	STA NO.2	7,5	Multiport fuel injection system/sequential multiport fuel injection system
33	FR WIP–WSH	30	Windshield wipers and washer
34	4WD	20	Four–wheel drive control system
35	D P/SEAT	30	Driver’s power seat
36	P P/SEAT	30	Front passenger’s power seat
37	PWR OUTLET	15	Power outlets
38	RR WSH	15	Rear window washer, multiplex communication system
39	ECU–IG	10	Shift lock control system, power windows, anti–lock brake system, traction control system (two–wheel drive models), active traction control system (four–wheel drive models), vehicle skid control system, electric moon roof, multiplex communication system, theft deterrent system, rear height control air suspension
40	IG1	10	Anti–lock brake system, traction control system (two–wheel drive models), active traction control system (four–wheel drive models), vehicle skid control system, air conditioning system, charging system, rear window defogger, back–up lights, turn signal lights, emergency flashers, seat heaters, AC inverter, instrument panel light control, auto anti–glare inside rear view mirror, SRS airbag system
41	STA	7,5	No circuit
42	SECU/HORN	10	Theft deterrent system
43	TAIL	10	Tail lights, license plate lights, parking lights, instrument panel light control, multiport fuel injection system/sequential multiport fuel injection system, instrument panel lights, meter and gauge, grove box light
44	ACC	7,5	Power outlets, outside rear view mirrors, audio system, navigation system, rear seat audio system, shift lock control system, instrument panel lights
45	CIG	10	No circuit

Fuses (type B)

Fuse		Ampere rating [A]	Functions
46	HEATER	50	Air conditioning system, all components in ”A.C” fuse
47	AIRSUS	50	Rear height control air suspension
48	AM1	50	All components in “ACC”, “CIG”, “IG1”, “ECU–IG”, “FR WIP–WSH”, “RR WIP”, “RR–WSH”, “4WD”, and “STA” fuses
49	TOWING BRK	30	Trailer brake controller
50	J/B	50	All components in “PWR OUTRET”, “D P/SEAT RH”, “P P/ SEAT”, “POWER”, “TAIL” and “SECU/ HORN” fuses
51	BATT CHG	30	Trailer sub battery
52	TOWING	40	Trailer lights (tail lights)
53	ABS MTR	40	Anti–lock brake system, traction control system (two–wheel drive models), active traction control system (four–wheel drive models), vehicle skid control system
54	AM2	30	Starter system, “IGN”, “GAUGE”, “STA NO.2” and “SRS” fuses
55	ABS SOL	50	Anti–lock brake system, traction control system (two–wheel drive models), active traction control system (four–wheel drive models), vehicle skid control system
56	POWER	30	Power windows, electric moon roof

Fuses (type C)

Fuse		Ampere rating [A]	Functions
57	ALT	140	All components in “AM2”, “ALT–S”, “DR/LCK”, “TRN–HAZ”, “HORN”, “RADIO NO.2”, “EFI”, “TOWING”, “ABS MTR”, “ABS SOL” and “ETCS” fuses

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