Lexus RX 300 (1999 – 2003) – fuse box diagram

Year of production: 1999, 2000, 2001, 2002, 2003

Passenger compartment fuse box

Number	Fuse	Ampere ratting [A]	Protected circuit
22	IGN	7,5	SRS system, Multiport fuel injection/Sequential multiport fuel injection system
23	RADIO NO,2	7,5	Audio system, Multiplex computer
24	C15IG		Cigarette lighter, Outside rear view mirrors, Power door lock system
25	D RR DOOR	20	Rear door lock, Rear power window
26	PWR OUTLET	15	Power outlets
27	FR FOG	15	Fog lights
28	SRS-IG	15	SRS system
29	ECU-IG	15	Telephone, Inside rear view mirror, Anti-lock brake system, Traction control system, Multi-display
30	WIPER	25	Windshield wipers
31	P RR DOOR	20	Rear door lock, Rear power window
32	P FR DOOR	20	Front door lock, Front power window
33	S/ROOF	20	Moon roof
34	HEATER	15	Air conditioning system
35	GAUGE	7,5	Multiplex computer, Service reminder indicators
36	RR WIP	15	Rear window wiper
37	STOP	20	Stop lights, High mounted stoplight, Anti-lock brake system, Traction control system
38	OBD	7,5	On-board diagnosis system
39	SEAT HTR	15	Seat heater system
40	STARTER	7,5	Starting system
41	WASHER	10	1999: Washer
		20	2000-2003: Washer
42	RR FOG	7,5	No circuit
43	FR DEF	20	Rear window and outside rear view mirror defogger
44	TAIL	10	Tail lights, Side marker lights, License plate lights, Parking lights
45	PANEL	7,5	Instrument panel lights
53	AM1	40	gnition system
54	POWER	30	Power seats

Engine compartment fuse box (2)

Number	Fuse	Ampere ratting [A]	Protected circuit
2	TOWING	20	Trailer lights
3	H-LP R LWR	15	Right-hand headlight (low beam)
4	H-LP L LWR	15	Left-hand headlight (low beam)
5	HAZARD	15	Emergency flashers, Turn signal lights
6	AM2	20	Starting system
7	TEL	15	Telephone
8	FL DOOR	20	Power door lock system
9	SPARE	7,5	Spare fuse
10	SPARE	15	Spare fuse
11	SPARE	25	Spare fuse
12	A7,5LT-S		Charging system
13	HORN	10	Theft deterrent system, Horn
14	EFI	20	Multiport fuel injection system/Sequential multiport fuel injection system
15	DOME	10	Interior light, Vanity lights, Foot lights, Rear personal light, Gauges and meters, Multi-display
16	ECU-B	7,5	Multiplex computer
17	RAD NO.1	25	Audio system
18	ABS 3	7,5	Anti-lock brake system
19	H-LP R UPR	15	Right-hand headlight (high beam)
20	H-LP L UPR	15	Left-hand headlight (high beam)
21	A/F HTR	25	Air fuel ratio sensor
46	ABS	60	Anti-lock brake system
47	ALT	140	Charging system
48	RDI	40	Cooling fan system
49	CDS	40	Cooling fan system
50	RR DEF	30	Rear window and outside rear view mirror defogger
51	HEATER	50	Blower
52	MAIN	50	Starting system

Engine compartment fuse box (1)

Number	Fuse	Ampere ratting [A]	Protected circuit
1	DRL	7,5	Daytime running light system

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