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Fuse box diagram (fuse layout), location, and assignment of fuses and relays Lexus ES 300 and ES 330 (XV30) (2001, 2002, 2003, 2004, 2005, 2006).
Checking and Replacing Fuses
The fuses are designed to blow, protecting the wiring harness and electrical systems from damage. If any of the electrical components do not operate, a fuse may have melted. If this happens, check and replace the fuses as necessary. Look carefully at the fuse. If the thin wire inside is broken, the fuse has blown. If you are not sure or if it is too dark to see, try replacing the suspected fuse with one of the same value that you know is good.
In case if you do not have a spare fuse, in an emergency you can pull out fuses, which may be dispensable for normal driving (for example, audio system, cigarette lighter, OBD, seat heater, and the like), and use it if its amperage rating is the same. If you cannot use one of the same amperage, use one lower than, but as close as possible to, the amperage. If the amperage is lower than that specified, the fuse might blow out again but this does not indicate anything wrong. Be sure to get the correct fuse as soon as possible and return the substitute to its original clips.
Notice
- Always switch off the ignition system and the affected electrical circuit before replacing a fuse.
- Never use a fuse of a higher amperage rating than that indicated, or use any other object in place of a fuse, even as a temporary fix. This can cause extensive damage or even fire.
- If the replaced fuse blows again, have the vehicle inspected by any authorized Lexus dealer or repairer, or another duly qualified and equipped professional.
Passenger Compartment
- Fuse Box
- Body ECU
- Absorber Control ECU
- Transponder Key Amplifier
- A/C Control Assembly
- Radio and Player with Display
- Theft Deterrent ECU
- Stereo Component Amplifier (Except MARK LEVINSON)
- Skid Control ECU
- Engine Control Module
- Passenger Side J/B
- Memory Mirror ECU
- Headlight Beam Level Control ECU
- Shift Lock Control ECU
- Airbag Sensor Assembly
- Wiper Relay
- Turn Signal Flasher Relay
- Overhead J/B
- Moon Roof Control ECU and Motor
- Front Passenger Door ECU
- Rear Door RH ECU
- Rear Sunshade Control Relay
- Stereo Component Amplifier (MARK LEVINSON)
- Navigation ECU
- Telephone Computer
- Light Failure Sensor
- Rear Door LH ECU
- Driver Door ECU
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Instrument Panel Fuse Box Diagram
The fuse box is located behind the cover to the left of the steering column.
| № | A | Fuse | Circuit(s) protected |
|---|---|---|---|
| 1 | 10 | ECU-B | 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, front passenger seat position memory system |
| 2 | 7.5 | DOME | 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 |
| 3 | 15 | CIG | Cigarette Lighter |
| 4 | 5 | ECU-ACC | Power rear view mirrors, clock, multi-information display, driving position memory system, front passenger seat position memory system |
| 5 | 10 | RAD №2 | Audio system, navigation system |
| 6 | 15 | POWER POINT | Power Outlet |
| 7 | 20 | RAD №1 | Audio system, navigation system |
| 8 | 10 | GAUGE1 | Gauges and meters, clock, outside temperature gauge, multi-information display, shift lock system |
| 9 | 10 | ECU-IG | SRS airbag system, power windows, anti-lock brake system, electronic modulated suspension, driving position memory system, front passenger seat position memory system |
| 10 | 25 | WIPER | Windshield wipers |
| 11 | 10 | HTR | Air conditioning system |
| 12 | 10 | MIR HTR | Outside rear view mirror defogger |
| 13 | 5 | AM1 | Starting system |
| 14 | 15 | FOG | Front fog lights |
| 15 | 15 | SUN-SHADE | Rear sunshade |
| 16 | 10 | GAUGE2 | 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 |
| 17 | 10 | PANEL | Glove box light, console box light, clock, outside temperature gauge, multi-information display, instrument cluster lights, instrument panel lights |
| 18 | 10 | TAIL | Tail lights, parking lights, license plate lights |
| 19 | 20 | PWR №4 | Rear passenger's power window (left side) |
| 20 | 20 | PWR №2 | Front passenger's door lock system, front passenger's power window |
| 21 | 7.5 | OBD | On-board diagnosis system |
| 22 | 20 | SEAT HTR | Seat ventilators/heaters |
| 23 | 15 | WASHER | Windshield washer |
| 24 | 10 | FAN RLY | Electric cooling fans |
| 25 | 15 | STOP | Stop lights, high mounted stoplight |
| 26 | 5 | FUEL OPEN | Fuel filler door opener |
| 27 | 25 | DOOR №2 | Multiplex communication system (power door lock system, auto-door locking system, wireless remote control system) |
| 28 | 25 | AMP | Audio system |
| 29 | 20 | PWR №3 | Rear passenger's power window (right side) |
| 30 | 30 | PWR SEAT | Power seats, driving position memory system, front passenger seat position memory system |
| 31 | 30 | PWR №1 | Driver's door lock system, driver's power window, electric moonroof |
| 32 | 40 | DEF | Rear window defogger |
| R1 | Fog Lights | ||
| R2 | Tail Lights | ||
| R3 | Accessory Relay | ||
| R4 | Rear Window Defogger | ||
| R5 | Ignition (IG1) | ||
| R6 | Not Used | ||
Engine Compartment
- Fuse Box
- Headlight Control ECU LH
- ABS Relay Box
- Headlight Control ECU RH
- Skid Control ECU with Actuator
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Engine Compartment Fuse Box Diagram
| № | A | Fuse | Circuit(s) protected |
|---|---|---|---|
| 1 | 120 | ALT | All components in "DEF", "PWR №1", "PWR №2", "PWR №3", "PWR №4", "STOP", "DOOR №2", "OBD", "PWR SEAT", "FUEL OPEN", "FOG", "AMP", "PANEL", "TAIL", "AM1", "CIG", "POWER POINT", "RAD №2", "ECU-ACC", "GAUGE1", "GAUGE2", "ECU-IG", "WIPER", "WASHER", "HTR (10 A)", "SEAT HTR" and "SUN-SHADE" fuses |
| 2 | 60 | ABS №1 | 2002-2003: All components in "RDI FAN", "ABS №2", "ABS №3", "CDS", "HTR (50 A)" and "ADJ PDL" fuses and anti-lock brake system, vehicle stability control system, traction control system, brake assist system |
| 50 | ABS №1 | 2003-2006: All components in "RDI FAN", "ABS №2", "ABS №3", "CDS", "HTR (50 A)" and "ADJ PDL" fuses and anti-lock brake system, vehicle stability control system, traction control system, brake assist system | |
| 3 | 15 | HEAD LH LWR | Left-hand headlight (low beam) and front fog lights |
| 4 | 15 | HEAD RH LWR | Right-hand headlight (low beam) |
| 5 | 5 | DRL | Daytime running light system |
| 6 | 10 | A/C | Air conditioning system |
| 7 | - | - | Not used |
| 8 | - | - | Not used |
| 9 | - | - | Not used |
| 10 | 40 | MAIN | All components in "HEAD LH LWR", "HEAD RH LWR", "HEAD LH UPR", "HEAD RH UPR" and "DRL" fuses |
| 11 | 40 | ABS №2 | Anti-lock brake system, vehicle stability control system, traction control system, brake assist system |
| 12 | 30 | RDI | Electric cooling fan |
| 13 | 30 | CDS | Electric cooling fan |
| 14 | 50 | HTR | Air conditioning system |
| 15 | 30 | ADJ PDL | Power adjustable pedals |
| 16 | 40 | ABS №3 | 2002-2003: Anti-lock brake system, vehicle stability control system, traction control system, brake assist system |
| 30 | ABS №3 | 2003-2006: Anti-lock brake system, vehicle stability control system, traction control system, brake assist system | |
| 17 | 30 | AM2 | All components in "IGN" and "IG2" fuses and starting system |
| 18 | 10 | HEAD LH UPR | Left-hand headlight (high beam) |
| 19 | 10 | HEAD RH UPR | Right-hand headlight (high beam) |
| 20 | 5 | ST | Starting system |
| 21 | 5 | TEL | No circuit |
| 22 | 5 | ALT-S | Charging system |
| 23 | 15 | IGN | Starting system |
| 24 | 10 | IG2 | Multiport fuel injection system/sequential multiport fuel injection system, SRS airbag system, seat belt pretensioners, cruise control system |
| 25 | 25 | DOOR1 | Multiplex communication system (power door lock system, auto-door locking system, wireless remote control system) |
| 26 | 20 | EFI | Multiport fuel injection system/sequential multiport fuel injection system |
| 27 | 10 | HORN | Horns |
| 28 | 30 | D.C.C | All components in "ECU-B", "RAD №1" and "DOME" fuses |
| 29 | 25 | A/F | Multiport fuel injection system/sequential multiport fuel injection system |
| 30 | - | - | Not used |
| 31 | 10 | ETCS | Multiport fuel injection system/sequential multiport fuel injection system |
| 32 | 15 | HAZ | Emergency flashers |
| 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 Control (Air Fuel Ratio Sensor) | ||
| R11 | Air conditioning system (Heater) | ||
| R12 | Starter | ||
| R13 | Headlight | ||
| R14 | Electric cooling fan (№1) | ||
| R15 | Circuit Opening Relay (C/OPN) | ||
| R16 | Horns | ||
| R17 | Engine Control Module (EFI) | ||
ABS Relay Box
| № | A | Fuse | Circuit(s) protected |
|---|---|---|---|
| 1 | 7.5 | ABS №4 | Anti-ock brake system, vehicle stability control system, traction control system, brake assist system |
| R1 | ABS MTR | ||
| R2 | ABS CUT | ||
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