Diagrams of fuse and relay boxes – Lexus ES 300

Applies to vehicles manufactured in the years:

2001, 2002, 2003, 2004, 2005, 2006.

 

Passenger compartment

1. Fuse box
2. Body ECU
3. Absorber control ECU
4. Transponder key amplifier
5. Air conditioning control unit
6. Radio and player with display
7. Theft deterrent ECU
8. Component stereo amplifier (except MARK LEVINSON)
9. Slip control ECU
10. Engine control module
11. Passenger side J / B
12. Mirror memory ECU
13. Headlamps level control ECU
14. Shift lock control ECU
15. Airbag sensor assembly
16. Wiper relay
17. Direction indicator turn signal relay

1. J / B overhead
2. ECU and sunroof control motor
3. Passenger’s front door ECU
4. Rear right door ECU
5. Rear sun visor control relay
6. Component stereo amplifier (MARK LEVINSON)
7. Navigation ECU
8. Telephone
9. Light failure sensor
10. Rear left door ECU
11. Driver’s door controller

 

Distribution board fuse box diagram

The fuse box is located behind a cover on the left side of the steering column.

Number	Amperes [A]	Description
1	10	Multiplex communication system (electric door lock system, security system, automatic door closing system, automatic lighting control system, headlamp delay system, automatic tail light shut-off system, illuminated entry system, daytime running light system, wireless remote control system) air conditioning system , electronically modulated suspension, driving position memory system, front passenger seat position memory system
2	7.5	Ignition switch light, interior light, personal light, foot light, door ceiling light, trunk light, vanity light, garage door opener, clock, outside temperature gauge, multi-function display
3	15	Lighter
4	5	Electric rearview mirrors, clock, multifunction display, driver position memory system, front passenger seat position memory system
5	10	Audio system, navigation system
6	15	Power socket
7	20	Audio system, navigation system
8	10	Gauges and meters, clock, outside temperature gauge, multi-function display, shift lock system
9	10	SRS airbag system, power windows, anti-lock brake system, electronic modulated suspension, driver position memory system, front passenger seat position memory system
10	25	Wipers
11	10	Air conditioning system
12	10	Outside rearview mirror defogger
13	5	Boot system
14	15	Front fog lamps
15	15	Rear sun visor
16	10	Automatic anti-glare rearview mirror, compass , reverse lights, automatic lighting control system, automatic headlight leveling system, cruise control, seat belt reminder lights
17	10	Glove box lighting, console lighting, clock, outside temperature gauge, multi-function display, instrument cluster lighting, instrument panel lighting
18	10	Tail lights, parking lights, license plate lights
19	20	Rear passenger’s power window (left side)
20	20	Front passenger’s door lock system, front passenger’s power window
21	7.5	On-board diagnostics system
22	20	Seat fans / heaters
23	15	Windshield washer
24	10	Electric cooling fans
25	15	Stop lights, high mounted brake light
26	5	Fuel filler door opener
27	25	Multiplex communication system (electric lock system, automatic door locking system, wireless remote control system)
28	25	Public address system
29	20	Rear passenger’s power window (right-hand side)
30	thirty	Electric seats, driver position memory system, front passenger seat position memory system
31	thirty	Driver door lock system, electric driver window, electric sunroof
32	40	Rear window defogger
Relay
R1	Fog lights
R2	Rear lights
R3	Accessory relay
R4	Rear window defogger
R5	Ignition (IG1)
R6	Not used

Engine compartment

1. Fuse box
2. Left headlight control
3. ABS relay box
4. Right headlight control ECU
5. Skid control ECU with actuator

 

Diagram of the fuse box in the engine compartment

Number	Amperes [A]	Description
1	120	All components in “DEF”, “PWR №1”, “PWR №2”, “PWR №3”, “PWR №4”, “STOP”, “DOZWI №2”, “OBD”, ”  PWR seat “, “OPEN FUEL”, “MIST”, “AMP”, “PANEL”, “TAIL”, “AM1”, “CIG”, “POWER POINT”, “RAD №2”, “ECU-ACC”, “INDICATOR1”, “GAUGE2”, “ECU-IG”, “SQUEEGEE”, “WASHER”, “HTR (10A)”, ” HTR seat ” and “SUN-SHADE” fuses
2	60	2002-2003: All elements in the “RDI FAN”, “ABS №2”, “ABS №3”, “CDS”, “HTR (50 A)” and “ADJ PDL” fuses and the anti-lock braking system, vehicle stability control system, traction control system, brake assist system
	50	2003-2006: All elements in “RDI FAN”, “ABS №2”, “ABS №3”, “CDS”, “HTR (50 A)” and “ADJ PDL” fuses and anti-lock braking system, vehicle stability control system, traction control system, brake assist system
3	15	Left-hand headlight (low beam) and front fog lamps
4	15	Right headlight (low beam)
5	5	Daytime running light system
6	10	Air conditioning system
7	–	Not used
8	–	Not used
9	–	Not used
10	40	All elements in the “HEAD LH LWR”, “HEAD RH LWR”, “HEAD LH UPR”, “HEAD RH UPR” and “DRL” fuses
11	40	Anti-lock brake system, vehicle stability control system, traction control system, brake assist system
12	thirty	Electric cooling fan
13	thirty	Electric cooling fan
14	50	Air conditioning system
15	thirty	Pedals with power regulation
16	40	2002-2003: Anti-lock brake system, vehicle stability control system, traction control system, brake assist system
	thirty	2003-2006: Anti-lock brake system, vehicle stability control system, traction control system, brake assist system
17	thirty	All elements of the “IGN” and “IG2” fuses and the starting system
18	10	Left headlight (high beam)
19	10	Right headlight (high beam)
20	5	Boot system
21	5	No circuit
22	5	Charging system
23	15	Boot system
24	10	Multiport fuel injection system / sequential multiport fuel injection system, SRS airbag system, seat belt pretensioners , cruise control
25	25	Multiplex communication system (electric lock system, automatic door locking system, wireless remote control system)
26	20	Multiport fuel injection system / sequential multiport fuel injection system
27	10	Horn
28	thirty	All elements in the “ECU-B”, “RAD №1” and “DOME” fuses
29	25	Multiport fuel injection system / sequential multiport fuel injection system
30	–	Not used
31	10	Multiport fuel injection system / sequential multiport fuel injection system
32	15	Emergency beacons
Relay
R1	Not used
R2	Not used
R3	Daytime running light system (№2)
R4	Daytime running light system (№3)
R5	Electric cooling fan (№2)
R6	Daytime running light system (№4)
R7	Not used
R8	Electric cooling fan (№3)
R9	Magnetic clutch (A / C)
R10	Engine management (air / fuel ratio sensor)
R11	Air conditioning system (heating)
R12	Starter
R13	Reflector
R14	Electric cooling fan (№1)
R15	Circuit opening relay (C / OPN)
R16	Horn
R17	Engine Control Module (EFI)

S ABS relay box

Number	Amperes [A]	Description
1	7.5	Anti-lock Braking System, Vehicle Stability Control System, Traction Control System, Brake Assist System
Relay
R1	ABS MTR
R2	CUTTING ABS