Fuse diagram and relay box – Lexus LS 430 (XF30)
Applies to vehicles new in years:
2000, 2001, 2002, 2003, 2004, 2005, 2006.
Passenger compartment
Left-hand traffic
Right hand drive
- Fuse box 1
- 2000-2003: ECU Skid Control
2003-2006: ECU air suspension - ECU Door
- Power Tilt and Power Telescopic ECU
- Steering wheel lock ECU (with smart key system)
- Computer with transponder key (without smart key system)
- ECU theft deterrent
- Air conditioning control unit
- 2003-2006: PPS ECU
- 2004-2006: ECU distance control
- 2003-2006: AFS ECU
- 2000-2003: headlight level control ECU
- 2000-2003: air suspension ECU
- Fuse box 2
- Gearshift lever lock control ECU
- Airbag sensor unit
- Key transponder amplifier
Fuse box in passenger compartment 1 (driver’s side)
The fuse box is located under the instrument panel in the driver’s side leg recess. Remove the cover to access the fuses.
Traffic on the left
Right hand drive
| Number | Amps [A] | Description |
| 1 | 7,5 | RHD: Audio system, Navigation system |
| 2 | 20 | Tilt and telescope control |
| 3 | 30 | RHD: Audio System |
| 4 | 7,5 | Parking assistance system Lexus , Rear heating seats, Rear seat with air conditioning , Multifunction display, Audio system, Cigarette lighter, Instrument panel lighting, Coin box lighting, Rear mirror lighting, Glove box lighting, Electrically adjustable rear seats seatAir suspension system with electronic modulation, turn signals, clock, shift lock system, vehicle stability control system, sun visor, electric rear view mirror control system, console lighting, fuel vent system, adaptive front lighting system (AFS) |
| 5 | – | – |
| 6 | 30 | System places electric |
| 7 | – | – |
| 8 | 7,5 | Gauges and counters, parking assistance system Lexusshift lock system |
| 9 | 7,5 | Tilt and telescopic controls, electric door locking system, system foteli electric , engine immobilization system |
| 10 | 15 | seat heating air conditioning system places |
| 11 | 20 | Electronically modulated air suspension system |
| 12 | 7,5 | Gear locking system, theft deterrent system |
| 13 | 15 | Power socket |
| 14 | 15 | Rear Lighter |
| 15 | 7,5 | On-board diagnostic system |
| 16 | 7,5 | Starting system |
| 17 | 7,5 | Vehicle stability control system |
| 18 | 5 | belts safety |
| 19 | 7,5 | Anti-theft system |
| 20 | 7,5 | Air conditioning system |
| 21 | 5 | Stoplights |
| 22 | 10 | Refreshing places |
| Relay | ||
| R1 | Accessories (D-ACC) | |
| R2 | Ignition (D-IG1) | |
Fuse box in passenger compartment 2 (passenger side)
The fuse box is located under the instrument panel in the passenger leg room. Remove the cover to access the fuses.
Traffic on the left
Right hand drive
| Number | Amps [A] | Description |
| 1 | 7,5 | 2000-2003: SRS airbag system, engine immobilization system, steering wheel lock system |
| 1 | 30 | 2003-2006: SRS airbag system, Engine immobilization system, Steering wheel lock system, Starting system |
| 2 | 15 | Emergency Beacons |
| 3 | 7,5 | Steering wheel lock system |
| 4 | 7,5 | 2000-2003: Multifunction Display |
| 7,5 | 2003-2006: SRS airbag system, Engine immobilization system, Steering wheel lock system, Starting system | |
| 7,5 | 2003-2006: All components in “STA” and “IG2”, Start-up system | |
| 5 | 7,5 | Door locking system, engine immobilization system, steering wheel locking system, front seat electric, rear electric seat |
| 6 | 7,5 | Tilt and telescopic control, headlight switch, windshield wiper and washer switch, indicator switch |
| 7 | 10 | Vanity lights, external foot lights, ignition switch light, clock, indicators and gauges, interior lighting, personal lights |
| 8 | 7,5 | Gauges and gauges, vehicle stability control system, illuminated entry system, TEL |
| 9 | 10 | Refreshing headquarters |
| 10 | 5 | 2000-2003: Headlight Leveling System |
| 7,5 | 2003-2006: headlight leveling system, adaptive front lighting system (AFS) | |
| 11 | 7,5 | Rain sensor, air conditioning system, sunroof, information display, clock |
| 12 | 15 | seat heatingair conditioning system places |
| 13 | 7,5 | Air conditioning system, audio system, clock, information display, illuminated entry system |
| 14 | 15 | Front Lighter |
| 15 | – | – |
| 16 | 7,5 | Public Address System |
| 17 | 25 | 2000-2003: Opening Roof |
| 20 | 2003-2006: | |
| LHD: electric lock system, electric window, self-closing system, courtesy door lights | ||
| 20 | 2003-2006: | |
| RHD: electric door locking system, electric window, door locking system, door courtesy lights | ||
| 18 | 25 | Electric door locking system, electric mirror control system, outside mirror demister, door locking system, door ceiling light, electric windows |
| 19 | 7,5 | LHD: audio system, navigation system |
| 20 | 5 | belts seat belt, belt buckle illumination , |
| 21 | 30 | 2000-2003: |
| LHD: audio system | ||
| 30 | 2000-2003: | |
| RHD: System electric seats | ||
| 20 | 2003-2006: | |
| LHD: electric lock system, electric window, self-closing system, courtesy door lights | ||
| 20 | 2003-2006: | |
| RHD: electric door locking system, electric window, door locking system, door courtesy lights | ||
| 22 | 25 | Electric door closing system, door locking system, electric rear view mirror control system, outside rear view mirror demister, door ceiling light, electric windows |
| Courier | ||
| R1 | Accessories (P-ACC) | |
| R2 | Ignition (P-IG1) | |
Engine compartment
Traffic on the left
Right hand drive
- Fuse box
- Relay box 1
- Engine and ECT ECU
- Left Headlight ControlECU
- Headlight cleaning control relay
- ECU cooling fan
- ECU for right side headlight control
- Fuse Connection Block
- 2003-2006: ECU slip control with actuator
- Relay box 2
Diagram of the fuse box in the engine compartment
| Number | Amps [A] | Description |
| 1 | 15 | Right Headlight (Low beam) |
| 2 | 15 | Left Headlight (Low beam) |
| 3 | 7,5 | Multi-port fuel injection system/ sequential multi-point fuel injection system |
| 4 | 7,5 | Multi-port fuel injection system/ sequential multi-point fuel injection system |
| 5 | 10 | Multi-port fuel injection system/ sequential multi-point fuel injection system |
| 6 | 7,5 | Multi-port fuel injection system/ sequential multi-point fuel injection system |
| 7 | 7,5 | Electric cooling fan, Headlight cleaner, Charging system, Starting system, Rear window defroster |
| 8 | 7,5 | Air conditioning system |
| 9 | 30 | Windshield Wiper |
| 10 | 15 | Fog Lights |
| 11 | 20 | Windshield washer |
| 12 | 7,5 | Tail lights, parking lights, side marker lights |
| 13 | 30 | Headlight Cleaner |
| 14 | 30 | 2000-2003: multi-port fuel injection system/ sequential multi-point fuel injection system |
| 25 | 2003-2006: multi-port fuel injection system/ sequential multi-port fuel injection system | |
| 20 | 2004-2006: multi-port fuel injection system/ sequential multi-port fuel injection system | |
| 15 | 10 | Horn |
| 16 | 10 | Multi-port fuel injection system/ sequential multi-point fuel injection system |
| 17 | 20 | Headlights (High beam) |
| Relay | ||
| R1 | Ignition (IG1) | |
| R2 | Open circuit (fuel pump (C/OPN)) | |
| R3 | Fuel Pump (F/PMP) | |
| R4 | Ignition (IG2) | |
| R5 | A/C compressor clutch (A/C COMP) | |
| R6 | Engine Control Unit (EFI MASTER) | |
| R7 | Headlights (HEAD LP) | |
Fuse Connection Block
| Number | A | Description |
| 1 | 50 | 2000-2003: All articles in ” Right Seat”, ” Seat right side”, “S/ROOF”, “AMP”, “RR IG”, “RR ECU-B”, “PP/ headquarters “, ‘RR S /HTR’, ‘RR S/SHADE’, ‘RR A/C’, ‘RR ACC’, ‘FUEL OPN’ and ‘LCE LP’, Tail and stop lights |
| 2003-2006: | ||
| 200W Fan: All components in ” right seat”, ” seat left right”, “S/ROOF”, “AMP”, “RR IG”, “RR ECU-B”, “PP/ socket “, “RR S/ HTR”, “RR S/SHADE”, “RR A/C”, “RR ACC”, “FUEL OPN” and “LCE LP”, tail lights and stop lights | ||
| 2 | 40 | 2000-2003: Vehicle Stability Control System |
| 50 | 2003-2006: Vehicle Stability Control System | |
| 3 | 50 | Air Conditioning System |
| 4 | 40 | 2000-2003: Vehicle Stability Control System |
| 30 | 2003-2006: Vehicle Stability Control System | |
| 5 | 40 | Rear window defogger |
| 6 | 40 | Electronically modulated air suspension system |
| 7 | 50 | 2000-2003: Air Conditioning System |
| 2003-2006: | ||
| 100 W fan: air conditioning system | ||
| 8 | 60 | All items under “FR FOG,” “FIRE,” “BIRD,” “FR IG,” “WIP,” “H-LP CRN,” and “A/C IG.” |
| 9 | 80 | 200 W fan: air conditioning system |
| 60 | 2003-2006: | |
| 100W Fan: All components in ” right seat”, ” seat left right”, “S/ROOF”, “AMP”, “RR IG”, “RR ECU-B”, “PP/ socket “, “RR S/ HTR”, “RR S/SHADE”, “RR A/C”, “RR ACC”, “FUEL OPN” and “LCE LP”, tail lights and stop lights | ||
| 10 | 80 | All articles on “TI&TE”, “DP/ headquarters “, “A/C”. “OBD”, “STOP”, “AM1”, “MPX-IG”, “ABS-IG”, “GAUGE”, “AIRSUS” , “DS/HTR”, “SAFETY”, “PANEL”, “DB/ANC”, “POWER PLUG”, “D-CIG”, “D RR-IG” and “D-ACC” |
| 11 | 140 | Charging System |
| 12 | 80 | All items in “RR DOOR RH”, “RR DOOR LH”, “D DOOR”, “H-LP LVL”, “P DOOR”, “PS/HTR”, “P-IG”, “P-ACC”, “PB/ANC”, “P-CIG”, “TEL” and “P RR-IG”. |
| 13 | 30 | All components under “RADIO №1”, “AM2”, “HAZ” and “STR LOCK”. |
| 14 | 30 | 2000-2003: Starter System |
| 30 | 2003-2006: Launch System | |
| 15 | 20 | All articles in “COPY”, “MPX-B1” and “MPS-B3” |
| 16 | 5 | Charging system |
| 17 | – | Backup fuse |
| 18 | – | Backup fuse |
| 19 | – | Backup fuse |
| 20 | – | Backup fuse |
| Relay | ||
| R1 | Starter | |
| R2 | Electronically modulated air suspension system (AIR SUS) | |
| R3 | Electric cooling fan (FAN) | |
Relay box 1
| Number | Courier |
| R1 | Rear window defogger (DEFOG) |
| R2 | – |
Relay Box 2
2000-2003
2003-2006
| Number | Amps [A] | Description |
| 1 | 7,5 | 2000-2003: Vehicle Stability Control System |
| Courier | ||
| R1 | – | |
| R2 | (ABS MTR) | |
| R3 | (SOL ABS) | |
Trunk
- ECU and sunroof control engine
- LHD: Front passenger door ECU
RHD: Driver’s door ECU - Right Rear Door ECU
- Stereo component amplifier
- 2003-2006: ECU of a television camera
- 2003-2006: Air conditioning reinforcement
- Component Stereo Tuner
- ECU Navigation
- Rear sun visor control relay
- 2000-2004: Telephone transceiver and speaker relay
2004-2006: ECU belt control Safety - Fuse Box
- Mudline sonar ECU
- ECU Left Backdoor
- LHD: ECU driver door
RHD: Front passenger door ECU - Link Block
Trunk fuse box diagram
Remove the liner from the left side of the boot and open the lid.
| Number | Amps [A] | Description |
| 1 | 7,5 | Parking assistance system Lexus , electronically modulated air suspension system, theft deterrent system, TEL |
| 2 | 7,5 | Audio System, TEL |
| 3 | 7,5 | Rear air conditioning system, Theft deterrent system, Trunk light, Rear cooling seats |
| 4 | – | – |
| 5 | 7,5 | Rear air conditioning system, air filter |
| 6 | 20 | 2000-2003: heating places |
| 30 | 2003-2006: heating places air conditioning system places | |
| 7 | 15 | Umbrella |
| 8 | 7,5 | License plate illumination |
| 9 | 20 | 2000-2003: Electric door locking system, power windows, door locking system, door courtesy lights |
| 30 | 2003-2006: Opening roof | |
| 10 | 10 | Fuel opening system, trunk lid closing system |
| 11 | 20 | 2000-2003: Electric door locking system, power windows, door locking system, door courtesy lights |
| 30 | 2003-2006: | |
| LHD: audio system | ||
| 30 | 2003-2006: | |
| RHD: System electric seats | ||
| 12 | 30 | LHD: System electric seats |
| 13 | 30 | System places electric |
| 14 | 30 | System places electric |
| Relay | ||
| R1 | Accessories (L-ACC) | |
| R2 | Ignition (L-IG1) | |
| R2 | Sun visor (RR S/SHADE) | |
