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Fuse box diagram (fuse layout), location, and assignment of fuses and relays Lexus LS 430 (XF30) (2000, 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
Left-hand drive
Right-hand drive
- Fuse Box №1
- 2000-2003: Skid Control ECU
2003-2006: Air Suspension ECU - Gateway ECU
- Power Tilt and Power Telescopic ECU
- Steering Lock ECU (with Smart Key System)
- Transponder Key Computer (without Smart Key System)
- Theft Deterrent ECU
- A/C Control Assembly
- 2003-2006: PPS ECU
- 2004-2006:Distance Control ECU
- 2003-2006:AFS ECU
- 2000-2003:Headlight Beam Level Control ECU
- 2000-2003: Air Suspension ECU
- Fuse Box №2
- Shift Lock Control ECU
- Airbag Sensor Assembly
- Transponder Key Amplifier
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Passenger Compartment Fuse Box №1 (Driver Side)
The fuse box is under the dashboard in the driver’s side footwell. Remove the cover to access fuses.
Left-hand drive
Right-hand drive
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | TEL | 7.5 | RHD: Audio system, Navigation system |
| 2 | TI&TE | 20 | Tilt and telescopic steering |
| 3 | AMP | 30 | RHD: Audio system |
| 4 | PANEL | 7.5 | Lexus park assist system, Rear seat heater, Rear climate control seat, Multi-information display, Audio system, Cigarette lighter, Instrument panel light, Coin box light, Rear mirror light, Glove box light, Power rear seat, Electronically modulated air suspension system, Turn signal lights, Clock, Shift lock system, Vehicle stability control system, Sunshade, Power rear view mirror control system, Console box light, Fuel opener system, Adaptive Front Lighting System (AFS) |
| 5 | - | - | - |
| 6 | D P/SEAT | 30 | Power seat system |
| 7 | - | - | - |
| 8 | GAUGE | 7.5 | Gauges and meters, Lexus park assist system, Shift lock system |
| 9 | MPX-IG | 7.5 | Tilt and telescopic steering, Power door lock system, Power seat system, Engine immobilizer system |
| 10 | D S/HTR | 15 | Seat heater, Climate control seat system |
| 11 | AIRSUS | 20 | Electronically modulated air suspension system |
| 12 | D-ACC | 7.5 | Shift lock system, Theft deterrent system |
| 13 | PWR OUTLET | 15 | Power outlet |
| 14 | D-CIG | 15 | Rear cigarette lighter |
| 15 | OBD | 7.5 | On-board diagnosis system |
| 16 | AM1 | 7.5 | Starting system |
| 17 | ABS-IG | 7.5 | Vehicle stability control system |
| 18 | D B/ANC | 5 | Seat belts |
| 19 | SECURITY | 7.5 | Theft deterrent system |
| 20 | A/C | 7.5 | Air conditioning system |
| 21 | STOP | 5 | Stop lights |
| 22 | D RR-IG | 10 | Refreshing seat |
| R1 | Accessory (D-ACC) | ||
| R2 | Ignition (D-IG1) | ||
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Passenger Compartment Fuse Box №2 (Passenger Side)
The fuse box is under the dashboard in the passenger’s side footwell. Remove the cover to access fuses.
Left-hand drive
Right-hand drive
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | IG2 | 7.5 | 2000-2003: SRS airbag system, Engine immobilizer system, Steering lock system |
| 1 | IG2 | 30 | 2003-2006: SRS airbag system, Engine immobilizer system, Steering lock system, Starting system |
| 2 | HAZ | 15 | Emergency flashers |
| 3 | STR LOCK | 7.5 | Steering lock system |
| 4 | CRT | 7.5 | 2000-2003: Multi–information display |
| IG2 | 7.5 | 2003-2006: SRS airbag system, Engine immobilizer system, Steering lock system, Starting system | |
| AM2 | 7.5 | 2003-2006: All components in "STA" and "IG2", Starting system | |
| 5 | MPX-B1 | 7.5 | Power door lock system, Engine immobilizer system, Steering lock system, Front power seat, Rear power seat |
| 6 | MPX-B3 | 7.5 | Tilt and telescopic steering, Headlight switch, Windshield wiper and washer switch, Turn signal switch |
| 7 | DOME | 10 | Vanity lights, Outer foot lights, Ignition switch light, Clock, Gauges and meters, Interior lights, Personal lights |
| 8 | MPX-B2 | 7.5 | Gauges and meters, Vehicle stability control system, Illuminated entry system, TEL |
| 9 | P RR-IG | 10 | Refreshing seat |
| 10 | H-LP LVL | 5 | 2000-2003: Headlight leveling system |
| 7.5 | 2003-2006: Headlight leveling system, Adaptive Front Lighting System (AFS) | ||
| 11 | P-IG | 7.5 | Rain sensor, Air conditioning system, Moon roof, Multi-information display, Clock |
| 12 | P S/HTR | 15 | Seat heater, Climate control seat system |
| 13 | P-ACC | 7.5 | Air conditioning system, Audio system, Clock, Multi-information display, Illuminated entry system |
| 14 | P-CIG | 15 | Front cigarette lighter |
| 15 | - | - | - |
| 16 | RADIO №1 | 7.5 | Audio system |
| 17 | S/ROOF | 25 | 2000-2003: Moon roof |
| RR DOOR LH | 20 | 2003-2006: | |
| LHD: Power door lock system, Power window, Door closer system, Door courtesy lights | |||
| RR DOOR RH | 20 | 2003-2006: | |
| RHD: Power door lock system, Power window, Door closer system, Door courtesy lights | |||
| 18 | P DOOR | 25 | Power door lock system, Power rear view mirror control system, Outside rear view mirror defogger, Door closer system, Door courtesy lights, Power windows |
| 19 | TEL | 7.5 | LHD: Audio system, Navigation system |
| 20 | P B/ANC | 5 | Seat belts, Seat belt buckle illumination |
| 21 | AMP | 30 | 2000-2003: |
| LHD: Audio system | |||
| P P/SEAT | 30 | 2000-2003: | |
| RHD: Power seat system | |||
| RR DOOR RH | 20 | 2003-2006: | |
| LHD: Power door lock system, Power window, Door closer system, Door courtesy lights | |||
| RR DOOR LH | 20 | 2003-2006: | |
| RHD: Power door lock system, Power window, Door closer system, Door courtesy lights | |||
| 22 | D DOOR | 25 | Power door lock system, Door closer system, Power rear view mirror control system, Outside rear view mirror defogger, Door courtesy lights, Power windows |
| R1 | Accessory (P-ACC) | ||
| R2 | Ignition (P-IG1) | ||
Engine Compartment
Left-hand drive
Right-hand drive
- Fuse Box
- Relay Box №1
- Engine and ECT ECU
- Headlight Control ECU LH
- Headlight Cleaner Control Relay
- Cooling Fan ECU
- Headlight Control ECU RH
- Fusible Link Block
- 2003-2006:Skid Control ECU with Actuator
- Relay Box №2
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Engine Compartment Fuse Box Diagram
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | H-LP R LWR | 15 | Right-hand headlight (low beam) |
| 2 | H-LP L LWR | 15 | Left-hand headlight (low beam) |
| 3 | EFI №2 | 7.5 | Multiport fuel injection system/sequential multiport fuel injection system |
| 4 | STA | 7.5 | Multiport fuel injection system/sequential multiport fuel injection system |
| 5 | INJ | 10 | Multiport fuel injection system/sequential multiport fuel injection system |
| 6 | IGN | 7.5 | Multiport fuel injection system/sequential multiport fuel injection system |
| 7 | FR IG | 7.5 | Electric cooling fan, Headlight cleaner, Charging system, Starting system, Rear window defogger |
| 8 | A/C IG | 7.5 | Air conditioning system |
| 9 | WIP | 30 | Windshield wiper |
| 10 | FR FOG | 15 | Fog lights |
| 11 | WASHER | 20 | Windshield washer |
| 12 | TAIL | 7.5 | Tail lights, parking lights, Side marker lights |
| 13 | H-LP. CLN | 30 | Headlight cleaner |
| 14 | EFI №1 | 30 | 2000-2003: Multiport fuel injection system/sequential multiport fuel injection system |
| 25 | 2003-2006: Multiport fuel injection system/sequential multiport fuel injection system | ||
| 20 | 2004-2006: Multiport fuel injection system/sequential multiport fuel injection system | ||
| 15 | HORN | 10 | Horns |
| 16 | ETCS | 10 | Multiport fuel injection system/sequential multiport fuel injection system |
| 17 | H-LP HI | 20 | Headlights (high beam) |
| R1 | Ignition (IG1) | ||
| R2 | Circuit opening (Fuel pump (C/OPN)) | ||
| R3 | Fuel pump (F/PMP) | ||
| R4 | Ignition (IG2) | ||
| R5 | Air conditioner compressor clutch (A/C COMP) | ||
| R6 | Engine control unit (EFI MAIN) | ||
| R7 | Headlights (HEAD LP) | ||
Fusible Link Block
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | LUG J/B | 50 | 2000-2003: All components in "RR SEAT RH", "RR SEAT LH", "S/ROOF", "AMP", "RR IG", "RR ECU-B", "P P/SEAT", "RR S/HTR", "RR S/SHADE", "RR A/C", "RR ACC", "FUEL OPN" and "LCE LP", Tail lights and Stop lights |
| 2003-2006: | |||
| 200W Fan: All components in "RR SEAT RH", "RR SEAT LH", "S/ROOF", "AMP", "RR IG", "RR ECU-B", "P P/SEAT", "RR S/HTR", "RR S/SHADE", "RR A/C", "RR ACC", "FUEL OPN" and "LCE LP", Tail lights and Stop lights | |||
| 2 | ABS 2 | 40 | 2000-2003: Vehicle stability control system |
| 50 | 2003-2006: Vehicle stability control system | ||
| 3 | HEATER | 50 | Air conditioning system |
| 4 | ABS 1 | 40 | 2000-2003: Vehicle stability control system |
| 30 | 2003-2006: Vehicle stability control system | ||
| 5 | DEFOG | 40 | Rear window defogger |
| 6 | AIR SUS | 40 | Electronically modulated air suspension system |
| 7 | FAN | 50 | 2000-2003: Air conditioning system |
| 2003-2006: | |||
| 100W Fan: Air conditioning system | |||
| 8 | R/B | 60 | All components in "FR FOG", "TAIL", "WASHER", "FR IG", "WIP", "H-LP CRN", and "A/C IG" |
| 9 | FAN | 80 | 200W Fan: Air conditioning system |
| LUG J/B | 60 | 2003-2006: | |
| 100W Fan: All components in "RR SEAT RH", "RR SEAT LH", "S/ROOF", "AMP", "RR IG", "RR ECU-B", "P P/SEAT", "RR S/HTR", "RR S/SHADE", "RR A/C", "RR ACC", "FUEL OPN" and "LCE LP", Tail lights and Stop lights | |||
| 10 | D-J/B | 80 | All components in "TI &TE", "DP/SEAT", "A/C" "OBD", "STOP", "AM1", "MPX-IG", "ABS-IG", "GAUGE", "AIRSUS", "D S/HTR", "SECURITY", "PANEL", "D B/ANC", "POWER OUTLET", "D-CIG", "D RR-IG" and "D-ACC" |
| 11 | ALT | 140 | Charging system |
| 12 | P-J/B | 80 | All components in "RR DOOR RH", "RR DOOR LH", "D DOOR", "H-LP LVL", "P DOOR", "P S/HTR", "P-IG", "P-ACC", "P B/ANC", "P-CIG", "TEL" and "P RR-IG" |
| 13 | BATT | 30 | All components in "RADIO №1", "AM2", "HAZ" and "STR LOCK" |
| 14 | AM 2 | 30 | 2000-2003: Starting system |
| ST | 30 | 2003-2006: Starting system | |
| 15 | D/C CUT | 20 | All components in "DOME", "MPX-B1", and "MPS-B3" |
| 16 | ALT-S | 5 | Charging system |
| 17 | SPARE | - | Spare fuse |
| 18 | SPARE | - | Spare fuse |
| 19 | SPARE | - | Spare fuse |
| 20 | SPARE | - | Spare fuse |
| R1 | Starter | ||
| R2 | Electronically modulated air suspension system (AIR SUS) | ||
| R3 | Electric cooling fan (FAN) | ||
Relay Box №1
| № | Relay |
|---|---|
| R1 | Rear window defogger (DEFOG) |
| R2 | - |
Relay Box №2
2000-2003
2003-2006
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | ABS 3 | 7.5 | 2000-2003: Vehicle stability control system |
| R1 | - | ||
| R2 | (ABS MTR) | ||
| R3 | (ABS SOL) | ||
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Luggage Compartment
- Moon Roof Control ECU and Motor
- LHD: Front Passenger Door ECU
RHD: Driver Door ECU - Rear Door RH ECU
- Stereo Component Amplifier
- 2003-2006: Television Camera ECU
- 2003-2006: A/C Amplifier
- Stereo Component Tuner
- Navigation ECU
- Rear Sunshade Control Relay
- 2000-2004: Telephone Transceiver and Speaker Relay
2004-2006: Seat Belt Control ECU - Fuse Box
- Clearance Sonar ECU
- Rear Door LH ECU
- LHD: Driver Door ECU
RHD: Front Passenger Door ECU - Junction Block
Luggage Compartment Fuse Box Diagram
Remove the lining on the left side of the trunk and open the cover.
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | RR IG | 7.5 | Lexus park assist system, Electronically modulated air suspension system, Theft deterrent system, TEL |
| 2 | RR ACC | 7.5 | Audio system, TEL |
| 3 | RR ECU-B | 7.5 | Rear air conditioning system, Theft deterrent system, Trunk light, Refreshing rear seat |
| 4 | - | - | - |
| 5 | RR A/C | 7.5 | Rear air conditioning system, Air purifier |
| 6 | RR S/HTR | 20 | 2000-2003: Seat heater |
| 30 | 2003-2006: Seat heater, Climate control seat system | ||
| 7 | RR S/SHADE | 15 | Sunshade |
| 8 | LCE LP | 7.5 | License plate lights |
| 9 | RR DOOR RH | 20 | 2000-2003: Power door lock system, Power windows, Door closer system, Door courtesy lights |
| S/ROOF | 30 | 2003-2006: Moon roof | |
| 10 | FUEL OPN | 10 | Fuel opener system, Trunk lid closer system |
| 11 | RR DOOR LH | 20 | 2000-2003: Power door lock system, Power windows, Door closer system, Door courtesy lights |
| AMP | 30 | 2003-2006: | |
| LHD: Audio system | |||
| P P/SEAT | 30 | 2003-2006: | |
| RHD: Power seat system | |||
| 12 | P P/SEAT | 30 | LHD: Power seat system |
| 13 | RR SEAT LH | 30 | Power seat system |
| 14 | RR SEAT RH | 30 | Power seat system |
| R1 | Accessory (L-ACC) | ||
| R2 | Ignition (L-IG1) | ||
| R2 | Sunshade (RR S/SHADE) | ||
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