Jonathan Yarden May 06, 2021 · 5 min. read

In this article you will find a description of fuses and relays Lexus, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.

Year of production: 2002, 2003

More about Lexus

Engine compartment

Driver’s side instrument panel

Fuse		Ampere rating [A]	Circuit protected
1	ABS NO.4	7,5	Anti−lock brake system, vehicle skid control system, traction control system, brake assist system
2	A/F	25	Multiport fuel injection system/sequential multiport fuel injection system
3	DOOR1	25	Multiplex communication system (power door lock system, auto−door locking system, wireless remote control system)
4	TEL	5	No circuit
5	AM2	30	All components in “IGN” and “IG2” fuses and starting system
6	EFI	20	Multiport fuel injection system/sequential multiport fuel injection system
7	ALT−S	5	Charging system
8	HEAD LH UPR	10	Left−hand headlight (high beam)
9	ETCS	10	Multiport fuel injection system/sequential multiport fuel injection system
10	HORN	10	Horns
11	IGN	15	Starting system
12	HEAD RH UPR	10	Right−hand headlight (high beam)
13	HAZ	15	Emergency flashers
14	D.C.C	30	All components in “ECU−B”, “RAD NO.1” and “DOME” fuses
15	IG2	10	Multiport fuel injection system/sequential multiport fuel injection system, SRS airbag system, front seat belt pretensioners, cruise control system
16	ST	5	Starting system
17	ADJ PDL	30	Power adjustable pedals
18	CDS	30	Electric cooling fan
19	ABS NO.2	40	Anti−lock brake system, vehicle skid control system, traction control system, brake assist system
20	MAIN	40	All components in “HEAD LH LWR”, “HEAD RH LWR”, “HEAD LH UPR”, “HEAD RH UPR” and “DRL” fuses
21	ABS NO.3	40	Anti−lock brake system, vehicle skid control system, traction control system, brake assist system
22	HTR	50	Air conditioning system
23	RDI	30	Electric cooling fan
24	SPARE	5	Spare fuse
25	SPARE	10	Spare fuse
26	ABS NO.1	60	All components in “RDI FAN”, “ABS NO.2”, “ABS NO.3”, “CDS”, “HTR (50 A)” and “ADJ PDL” fuses and anti−lock brake system, vehicle skid control system, traction control system, brake assist system
27	ALT	120	All components in “DEF”, “PWR NO.1”, “PWR NO.2”, “PWR NO.3”, “PWR NO.4”, “STOP”, “DOOR NO.2”, “OBD”, “PWR SEAT”, “FUEL OPEN”, “FOG”, “AMP”, “PANEL”, “TAIL”, “AM1”, “CIG”, “POWER POINT”, “RAD NO.2”, “ECU−ACC”, “GAUGE1”, “GAUGE2”, “ECU−IG”, “WIPER”, “WASHER”, “HTR (10 A)”, “SEAT HTR”, and “SUN−SHADE” fuses
28	SPARE	15	Spare fuse
29	A/C	10	Air conditioning system
30	DRL	5	Daytime running light system
31	HEAD RH LWR	15	Right−hand headlight (low beam)
32	HEAD LH LWR	15	Left−hand headlight (low beam) and front fog lights
33	ECU−B	10	Multiplex communication system (power door lock system, security system, auto−door locking system, automatic light control system, headlight delay off system, tail light auto cut system, illuminated entry system, daytime running light system, wireless remote control system) air conditioning system, electronic modulated suspension, driving position memory system
34	DOME	7,5	Ignition switch light, interior light, personal lights, foot lights, door courtesy lights, trunk light, vanity lights, garage door opener, clock, outside temperature gauge, multi−information display
35	CIG	15	Cigarette lighter
36	ECU−ACC	5	Power rear view mirrors, clock, multi−information display, driving position memory system
37	RAD NO.2	10	Car audio system, navigation system
38	POWER POINT	15	Power outlet
39	RAD NO.1	20	Car audio system, navigation system
40	GAUGE1	10	Gauges and meters, clock, outside temperature gauge, multi−information display, shift lock system
41	ECU−IG	10	SRS airbag system, power windows, anti−lock brake system, electronic modulated suspension, driving position memory system
42	WIPER	25	Windshield wipers
43	HTR	10	Air conditioning system
44	MIR HTR	10	Outside rear view mirror heaters
45	AM1	5	Starting system
46	FOG	15	Front fog lights
47	SUN−SHADE	15	Rear sunshade
48	GAUGE2	10	Auto anti−glare inside rear view mirror, compass, back−up lights, automatic light control system, automatic headlight leveling system, cruise control system, seat belt reminder lights
49	PANEL	10	Glove box light, console box light, clock, outside temperature gauge, multi−information display, instrument cluster lights, instrument panel lights, overdrive−off indicator light
50	TAIL	10	Tail lights, parking lights, license plate lights
51	PWR NO.4	20	Rear passenger’s power window (left side)
52	PWR NO.2	20	Front passenger’s door lock system, front passenger’s power window
53	OBD	7,5	On−board diagnosis system
54	SEAT HTR	20	Seat heaters
55	WASHER	15	Windshield washer
56	FAN RLY	10	Electric cooling fans
57	STOP	15	Stop lights, high mounted stoplight
58	FUEL OPEN	5	Fuel filler door opener
59	DOOR NO.2	25	Multiplex communication system (power door lock system, auto−door locking system, wireless remote control system)
60	AMP	25	Car audio system
61	PWR NO.3	20	Rear passenger’s power window (right side)
62	PWR SEAT	30	Power seats, driving position memory system
63	PWR NO.1	30	Driver’s door lock system, driver’s power window, electric moon roof
64	DEF	40	Rear window defogger

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

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