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In this article, you will find information about the fuses of the Lexus IS250 & IS350 (XE20) (models 2009 and 2010), including diagrams of the fuse boxes, a list of fuses, their designation, and the location of the fuse blocks within the vehicle.
Checking and Replacing Fuses in Lexus IS 250 / IS 350
The fuses are designed to blow before the entire wiring harness is damaged. If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary. Replace it with one of an appropriate amperage rating. The amperage rating can be found on the fuse box lid.
If the new fuse immediately blows out, there is a problem with the electrical system. Have your Lexus dealer correct it as soon as possible.
Caution!
- Never use a fuse of a higher amperage rating than indicated, or use any other object in place of a fuse.
- Always use a genuine Lexus fuse or equivalent. Never replace a fuse with a wire, even as a temporary fix. This can cause extensive damage or even fire.
- Do not modify fuses or the fuse box.
- Before replacing the fuses, have the cause of electrical overload determined and repaired by your Lexus dealer.
Location of Fuse Boxes
Engine Compartment:
Push the tabs in and lift the lid off.
Removing the engine compartment covers:
Passenger Compartment:
Remove the lid.
Fuse Box Diagrams
2009
Engine Compartment Fuse Box #1
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | PWR HTR | 25A | - |
| 2 | TURN-HAZ | 15A | Emergency flashers, turn signals |
| 3 | IG2 MAIN | 20A | IG2.IGN, GAUGE |
| 4 | RAD NO.2 | 30A | Audio |
| 5 | D/C CUT | 20A | DOME, MPX-B |
| 6 | RAD NO.1 | 30A | Audio |
| 7 | MPX-B | 10A | Headlights, front fog lights, parking lights, license plate lights, windshield washer, horn, power door lock system, power windows, power seats, electric tilt and telescopic steering column, meter, smart access system with pushbutton start, outside rear view mirrors, air conditioning system, security system |
| 8 | DOME | 10A | Interior lights, meter |
| 9 | CDS | 10A | Electric cooling fans |
| 10 | E/G-B | 60A | FR CTRL-B, ETCS, ALT-S, steering lock system, exhaust system |
| 11 | DIESEL GLW | 80A | - |
| 12 | ABS1 | 50A | VDIM |
| 13 | RH J/B-B | 30A | Power door lock system, smart access system with push-button start |
| 14 | MAIN | 30A | Headlight low beams |
| 15 | STARTER | 30A | Smart access system with push-button start |
| 16 | LH J/B-B | 30A | Power door lock system, SECURITY |
| 17 | P/l-B | 60A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 18 | EPS | 80A | Power steering |
| 19 | ALT | 150A | LH J/B-AM, E/G-AM, GLW PLG2, HEATER, FAN1, FAN2, DEFOG, ABS2, RH J/B-AM, GLW PLG1, LH J/B-B, RH J/B-B |
| 20 | GLW PLG1 | 50A | PTC heater |
| 21 | RH J/B-AM | 80A | OBD, STOP SW, TI&TE, FR P/SEAT RH, RAD NO.3, ECU-IG RH, RH-IG, FR S/HTR RH, ACC, CIG, PWR OUTLET |
| 22 | ABS2 | 30A | VDIM |
| 23 | DEFOG | 50A | Rear window defogger |
| 24 | FAN2 | 40A | Electric cooling fans |
| 25 | FAN1 | 40A | Electric cooling fans |
| 26 | HEATER | 50A | Air conditioning system |
| 27 | GLW PLG2 | 50A | PTC heater |
| 28 | E/G-AM | 60A | Headlight cleaners, front fog lights, parking lights, air conditioning system |
| 29 | LH J/B-AM | 80A | S/ROOF, FR P/SEAT LH, TV NO.1, A/C, FUEL/OPEN, PSB, FR WIP, H-LP LVL, LH-IG, ECU-IG LH, PANEL, TAIL, MIR HTR, FR S/HTR LH |
Engine Compartment Fuse Box #2
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | SPARE | 30A | Spare fuse |
| 2 | SPARE | 25A | Spare fuse |
| 3 | SPARE | 10A | Spare fuse |
| 4 | FR CTRL-B | 25A | Headlight high beam, horn |
| 5 | A/F | 15A | Exhaust system |
| 6 | ETCS | 10A | Multiport fuel injection system / sequential multiport fuel injection system |
| 7 | ALT-S | 7.5A | Charging system |
| 8 | STR LOCK | 25A | Steering lock |
| 9 | H-LP CLN | 30A | Headlight cleaner |
| 10 | A/C COMP | 7.5A | Air conditioning system |
| 11 | DEICER | 25A | - |
| 12 | FR CTRL-AM | 30A | Front fog lights, parking lights, windshield washer |
| 13 | IG2 | 10A | Ignition system |
| 14 | EFI NO.2 | 10A | Fuel system, exhaust system |
| 15 | H-LP R LWR | 15A | Headlight low beam (right) |
| 16 | H-LP L LWR | 15A | Headlight low beam (left) |
| 17 | F/PMP | 25A | Fuel system |
| 18 | EFI | 25A | Multiport fuel injection system / sequential multiport fuel injection system |
| 19 | INJ | 20A | Multiport fuel injection system / sequential multiport fuel injection system |
| 20 | H-LP UPR | 15A | Headlight high beams |
| 21 | HORN | 10A | Horns |
| 22 | WASHER | 20A | Windshield washer |
| 23 | FR TAIL | 10A | Parking lights |
| 24 | FR FOG | 15A | Front fog lights |
Instrument Panel Fuse Box #1
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | FR P/SEAT LH | 30A | Power seat |
| 2 | A/C | 7.5A | Air conditioning system |
| 3 | MIR HTR | 15A | Outside rear view mirror defoggers |
| 4 | TV NO.1 | 10A | Display |
| 5 | FUEL OPEN | 10A | Fuel filler door opener |
| 6 | TV NO.2 | 7.5A | - |
| 7 | PSB | 30A | Pre-collision seat belt |
| 8 | S/ROOF | 25A | Moon roof |
| 9 | TAIL | 10A | Tail lights, license plate lights, parking lights |
| 10 | PANEL | 7.5A | Switch illumination, air conditioning system, display |
| 11 | RR FOG | 7.5A | - |
| 12 | ECU-IG LH | 10A | Cruise control, air conditioning system, power steering, rain sensor, antiglare inside rear view mirror, shift lock system, moon roof, tire inflation pressure warning system |
| 13 | FR S/HTR LH | 15A | Seat heaters and ventilators |
| 14 | RR DOOR LH | 20A | Power windows |
| 15 | FR DOOR LH | 20A | Power windows |
| 16 | SECURITY | 7.5A | Smart access system with push-button start |
| 17 | H-LP LVL | 7.5A | AFS |
| 18 | LH-IG | 10A | Charging system, headlight cleaner, rear window defogger, electric cooling fans, emergency flashers, turn signal lights, back-up lights, stop lights, mirror heaters, sun shade, seat belts, Intuitive parking assist, cruise control, air conditioning system, PTC heater |
| 19 | FR WIP | 30A | Windshield wipers |
Instrument Panel Fuse Box #2
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | FR P/SEAT RH | 30A | Power seat |
| 2 | DOOR DL | 15A | - |
| 3 | OBD | 7.5A | On-board diagnosis system |
| 4 | STOP SW | 7.5A | Stop lights |
| 5 | TI&TE | 20A | Electric tilt and telescopic steering column |
| 6 | RAD NO.3 | 10A | Audio |
| 7 | GAUGE | 7.5A | Meter |
| 8 | IGN | 10A | SRS airbag system, cruise control, steering lock system, fuel system |
| 9 | ACC | 7.5A | Lexus link system, clock, air conditioning system, audio, display, outside rear view mirrors, smart access system with push-button start |
| 10 | CIG | 15A | Cigarette lighter |
| 11 | PWR OUTLET | 15A | Power outlet |
| 12 | RR DOOR RH | 20A | Power windows |
| 13 | FR DOOR RH | 20A | Power windows, outside rear view mirrors |
| 14 | AM2 | 7.5A | Smart access system with push-button start |
| 15 | RH-IG | 7.5A | Seat belts, intuitive parking assist, automatic transmission, seat heater and ventilator |
| 16 | FR S/HTR RH | 15A | Seat heaters and ventilators |
| 17 | ECU-IG RH | 10A | Power seats, smart access system with push-button start, AWD system, outside rear view mirrors, VDIM, air conditioning system, pre-collision seat belt, electric tilt and telescopic steering, power windows, navigation system |
2010
Engine Compartment Fuse Box #1
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | PWR HTR | 25A | - |
| 2 | TURN-HAZ | 15A | Emergency flashers, turn signals |
| 3 | IG2 MAIN | 20A | IG2, IGN, GAUGE |
| 4 | RAD NO.2 | 30A | Audio |
| 5 | D/C CUT | 20A | DOME, MPX-B |
| 6 | RAD NO.1 | 30A | Audio |
| 7 | MPX-B | 10A | Headlights, front fog lights, parking lights, license plate lights, windshield washer, horn, power door lock system, power windows, power seats, electric tilt and telescopic steering column, meter, smart access system with pushbutton start, outside rear view mirrors, air conditioning system, multiplex communication system |
| 8 | DOME | 10A | Interior lights, meter |
| 9 | CDS | 10A | Electric cooling fans |
| 10 | E/G-B | 60A | FR CTRL-B, ETCS, ALT-S, steering lock system, exhaust system |
| 11 | DIESEL GLW | 80A | - |
| 12 | ABS1 | 50A | VDIM |
| 13 | RH J/B-B | 30A | Power door lock system, smart access system with push-button start |
| 14 | MAIN | 30A | Headlight low beams |
| 15 | STARTER | 30A | Smart access system with push-button start |
| 16 | LH J/B-B | 30A | Power door lock system, SECURITY |
| 17 | P/l-B | 60A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 18 | EPS | 80A | Power steering |
| 19 | ALT | 150A | LH J/B-AM, E/G-AM, GLW PLG2, HEATER, FAN1, FAN2, DEFOG, ABS2, RH J/B-AM, GLW PLG1, LH J/B-B, RH J/B-B |
| 20 | GLW PLG1 | 50A | PTC heater |
| 21 | RH J/B-AM | 80A | OBD, STOP SW, TI&TE, FR P/SEAT RH, RAD NO.3, ECU-IG RH, RH-IG, FR S/HTR RH, ACC, CIG, PWR OUTLET |
| 22 | ABS2 | 30A | VDIM |
| 23 | DEFOG | 50A | Rear window defogger |
| 24 | FAN2 | 40A | Electric cooling fans |
| 25 | FAN1 | 40A | Electric cooling fans |
| 26 | HEATER | 50A | Air conditioning system |
| 27 | GLW PLG2 | 50A | PTC heater |
| 28 | E/G-AM | 60A | Headlight cleaners, front fog lights, parking lights, air conditioning system DEICER |
| 29 | LH J/B-AM | 80A | S/ROOF, FR P/SEAT LH, TV NO.1, A/C, FUEL/OPEN, PSB, FR WIP, H-LP LVL, LH-IG, ECU-IG LH, PANEL, TAIL, MIR HTR, FR S/HTR LH |
Engine Compartment Fuse Box #2
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | SPARE | 30A | Spare fuse |
| 2 | SPARE | 25A | Spare fuse |
| 3 | SPARE | 10A | Spare fuse |
| 4 | FR CTRL-B | 25A | Headlight high beams, horn |
| 5 | A/F | 15A | Exhaust system |
| 6 | ETCS | 10A | Multiport fuel injection system / sequential multiport fuel injection system |
| 7 | ALT-S | 7.5A | Charging system |
| 8 | TEL | 10A | Lexus Enform |
| 9 | STR LOCK | 25A | Steering lock |
| 10 | H-LP CLN | 30A | Headlight cleaner |
| 11 | A/C COMP | 7.5A | Air conditioning system |
| 12 | DEICER | 25A | Windshield wiper de-icer |
| 13 | FR CTRL-AM | 30A | Front fog lights, parking lights, windshield washer |
| 14 | IG2 | 10A | Ignition system |
| 15 | EFI NO.2 | 10A | Fuel system, exhaust system |
| 16 | H-LP R LWR | 15A | Headlight low beam (right) |
| 17 | H-LP L LWR | 15A | Headlight low beam (left) |
| 18 | F/PMP | 25A | Fuel system |
| 19 | EFI | 25A | Multiport fuel injection system / sequential multiport fuel injection system |
| 20 | INJ | 20A | Multiport fuel injection system / sequential multiport fuel injection system |
| 21 | H-LP UPR | 15A | Headlight high beams |
| 22 | HORN | 10A | Horns |
| 23 | WASHER | 20A | Windshield washer |
| 24 | FR TAIL | 10A | Parking lights |
| 25 | FR FOG | 15A | Front fog lights |
Instrument Panel Fuse Box #1
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | FR P/SEAT LH | 30A | Power seat |
| 2 | A/C | 7.5A | Air conditioning system |
| 3 | MIR HTR | 15A | Outside rear view mirror defoggers |
| 4 | TV NO.1 | 10A | Display |
| 5 | FUEL OPEN | 10A | Fuel filler door opener |
| 6 | TV NO.2 | 7.5A | - |
| 7 | PSB | 30A | Pre-collision seat belt |
| 8 | S/ROOF | 25A | Moon roof |
| 9 | TAIL | 10A | Tail lights, license plate lights, parking lights |
| 10 | PANEL | 7.5A | Switch illumination, air conditioning system, display |
| 11 | RR FOG | 7.5A | - |
| 12 | ECU-IG LH | 10A | Cruise control, air conditioning system, power steering, rain sensor, antiglare inside rear view mirror, shift lock system, moon roof, tire inflation pressure warning system |
| 13 | FR S/HTR LH | 15A | Seat heaters and ventilators |
| 14 | RR DOOR LH | 20A | Power windows |
| 15 | FR DOOR LH | 20A | Power windows |
| 16 | SECURITY | 7.5A | Smart access system with push-button start |
| 17 | H-LP LVL | 7.5A | AFS |
| 18 | LH-IG | 10A | Charging system, headlight cleaner, rear window defogger, electric cooling fans, emergency flashers, turn signal lights, back-up lights, stop lights, mirror heaters, sun shade, seat belts, intuitive parking assist, cruise control, air conditioning system, PTC heater |
| 19 | FR WIP | 30A | Windshield wipers |
Instrument Panel Fuse Box #2
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | FR P/SEAT RH | 30A | Power seat |
| 2 | DOOR DL | 15A | - |
| 3 | OBD | 7.5A | On-board diagnosis system |
| 4 | STOP SW | 7.5A | Stop lights |
| 5 | TI&TE | 20A | Electric tilt and telescopic steering column |
| 6 | RAD NO.3 | 10A | Audio |
| 7 | GAUGE | 7.5A | Meter |
| 8 | IGN | 10A | SRS airbag system, cruise control, steering lock system, fuel system |
| 9 | ACC | 7.5A | Lexus link system, clock, air conditioning system, audio, display, outside rear view mirrors, smart access system with push-button start |
| 10 | CIG | 15A | Cigarette lighter |
| 11 | PWR OUTLET | 15A | Power outlet |
| 12 | RR DOOR RH | 20A | Power windows |
| 13 | FR DOOR RH | 20A | Power windows, outside rear view mirrors |
| 14 | AM2 | 7.5A | Smart access system with push-button start |
| 15 | RH-IG | 7.5A | Seat belts, intuitive parking assist, automatic transmission, seat heater and ventilator |
| 16 | FR S/HTR RH | 15A | Seat heaters and ventilators |
| 17 | ECU-IG RH | 10A | Power seats, smart access system with push-button start, AWD system, outside rear view mirrors, VDIM, air conditioning system, pre-collision seat belt, electric tilt and telescopic steering, power windows, navigation system |