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In this article, you will find information about the fuses of the Lexus HS250h (models 2010, 2011, and 2012), 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 HS 250h
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 tab in and lift the lid off.
Passenger Compartment:
Remove the lid.
Fuse Box Diagrams
2010
Engine Compartment Fuse Box
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | HTR | 50A | Air conditioning system |
| 2 | RDI | 40A | Electric cooling fans |
| 3 | OIL PMP | 10A | Hybrid system, transmission |
| 4 | S-HORN | 10A | No circuit |
| 5 | ABS MAIN NO.2 | 7.5A | Electronically controlled brake system |
| 6 | H-LP CLN | 30A | Headlight cleaner |
| 7 | AMP NO.1 | 30A | Audio system, back door opener |
| 8 | IGCT | 30A | PCU, IGCT NO.2, IGCT NO.3, hybrid system |
| 9 | PCON MAIN | 7.5A | P position control system, hybrid system, smart access system with pushbutton start |
| 10 | AM2 | 7.5A | Smart access system with push-button start, hybrid system, multiport fuel injection system/sequential multiport fuel injection system, P position control system, cruise control system, dynamic radar cruise control system |
| 11 | ECU-B2 | 7.5A | Smart access system with push-button start, multiport fuel injection system/ sequential multiport fuel injection system, trunk opener switch |
| 12 | MAYDAY | 10A | Lexus link system |
| 13 | ECU-B3 | 10A | Air conditioning system, rear window defogger, mirror heater |
| 14 | TURN & HAZ | 10A | Turn signal lights, emergency flashers |
| 15 | ETCS | 10A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 16 | ABS MAIN NO.1 | 20A | Electronically controlled brake system |
| 17 | P/l 2 | 40A | P position control system, hybrid system, transmission, smart access system with push-button start, horn, headlights (low beam), back-up lights |
| 18 | ABS MTR1 | 30A | Electronically controlled brake system |
| 19 | ABS MTR2 | 30A | Electronically controlled brake system |
| 20 | H-LP HI MAIN | 20A | Headlights (high beam) |
| 21 | AMP NO.2 | 30A | Audio system, navigation system |
| 22 | DOOR NO.2 | 25A | No circuit |
| 23 | P/I 1 | 60A | IG2, EFI MAIN, BATT FAN |
| 24 | EPS | 60A | Electric power steering system |
| 25 | PCU | 10A | Hybrid system |
| 26 | IGCT NO.2 | 10A | Smart access system with push-button start, hybrid system, P position control system, multiport fuel injection system/sequential multiport fuel injection system |
| 27 | MIR HTR | 10A | Rear window defogger, mirror heater |
| 28 | RAD NO.1 | 15A | Audio system, navigation system |
| 29 | DOME | 10A | Interior lights, antiglare inside rear view mirror, audio system, navigation system, garage door opener |
| 30 | ECU-B | 7.5A | Smart access system with push-button start, air conditioning system, gauges and meters, outside rear view mirror, clock, seats position memory, electric tilt & telescopic steering wheel |
| 31 | H-LP LH HI | 10A | Left-hand headlight (high beam) |
| 32 | H-LP RH HI | 10A | Right-hand headlight (high beam) |
| 33 | EFI NO.2 | 10A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 34 | IGCT NO.3 | 10A | Hybrid system |
| 35 | SPARE | 30A | Spare fuse |
| 36 | SPARE | 10A | Spare fuse |
| 37 | SPARE | 7.5A | Spare fuse |
| 38 | EFI MAIN | 20A | EFI NO.2, fuel system |
| 39 | BATT FAN | 10A | Battery cooling fan |
| 40 | IG2 | 20A | Hybrid system, multiport fuel injection system/sequential multiport fuel injection system, MET, IGN |
Instrument Panel Fuse Box
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | TAIL | 10A | Parking lights, tail lights, license plate lights, side maker lights, front fog lights |
| 2 | PANEL | 10A | Navigation system, audio system, air conditioning system, emergency flashers switch, wiper de-icer switch, seat heater switch, P position switch, headlight cleaner switch, front passenger’s seatbelt reminder light, power window switch, VSC-OFF switch, HUD switch, AFS-OFF switch, POWER ·ECO· EV mode switch, view select switch, trunk opener switch, fuel lid opener switch, glove box light, rear sun shade switch, remote touch, rear view mirror switch |
| 3 | IGN | 10A | Electronically controlled brake system, multiport fuel injection system/ sequential multiport fuel injection system, Lexus link system, smart access system with push-button start, stop lights |
| 4 | MET | 7.5A | Meters |
| 5 | WIP | 30A | Windshield wipers |
| 6 | WASHER | 15A | Windshield washer |
| 7 | A/C | 10A | Air conditioning system |
| 8 | GAUGE | 10A | AFS, turn signal lights, emergency flasher lights |
| 9 | AFS | 10A | Adaptive front-lighting system |
| 10 | ECU-IG NO.2 | 10A | Pre-collision system, LKA, dynamic radar cruise control, air conditioning system, outside rear view mirror, HUD, navigation system, tire inflation pressure warning system |
| 11 | ECU-IG NO.1 | 10A | Rear view mirror, electronically controlled brake system, electric power steering system, moon roof, rain-sensing windshield wiper, emergency flashers switch, air conditioning system, electric head restraints, driver monitor, steering switch, seat heaters/ ventilators, electric tilt & telescopic steering wheel, rear sun shead. AFS |
| 12 | S/ROOF | 30A | Electric moon roof |
| 13 | DOOR RL | 25A | Rear power window (left-side) |
| 14 | DOOR RR | 25A | Rear power window (right-side) |
| 15 | SHADE RR | 10A | Rear sun shade |
| 16 | D FR DOOR | 25A | Driver’s side power window, outside rearview mirror |
| 17 | P FR DOOR | 25A | Passenger’s side power window, outside rear view mirror |
| 18 | TI&TE | 30A | Electric tilt & telescopic steering wheel |
| 19 | STOP | 10A | Stop lights, electronically controlled brake system |
| 20 | A/C NO.2 | 10A | No circuit |
| 21 | RR FOG | 7.5A | No circuit |
| 22 | FUEL OPN | 7.5A | Trunk opener switch, fuel filler door opener switch |
| 23 | OBD | 7.5A | On-board diagnosis |
| 24 | PWR SEAT FL | 30A | Driver’s side power seat |
| 25 | FR FOG | 15A | Front fog lights |
| 26 | PWR SEAT FR | 30A | Passenger’s side power seat |
| 27 | PSB | 30A | Pre-collision seat belts system |
| 28 | WELCAB | 30A | No circuit |
| 29 | DOOR NO.1 | 25A | Power door lock system |
| 30 | SEAT HTR FL | 10A | Driver’s side seat heater |
| 31 | SEAT HTR FR | 10A | Passenger’s side seat heater |
| 32 | RAD NO.2 | 7.5A | Navigation system, audio system, air conditioning system, HUD, remote touch |
| 33 | PWR OUTLET | 15A | Power outlet |
| 34 | ECU-ACC | 10A | Rear view mirror, air conditioning system, audio system, navigation system |
2011
Engine Compartment Fuse Box
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | HTR | 50A | Air conditioning system |
| 2 | RDI | 40A | Electric cooling fans |
| 3 | OIL PMP | 10A | Hybrid system, transmission |
| 4 | S-HORN | 10A | No circuit |
| 5 | ABS MAIN NO.2 | 7.5A | Electronically controlled brake system |
| 6 | H-LP CLN | 30A | Headlight cleaner |
| 7 | P CON MTR | 30A | P position control system, hybrid system, smart access system with pushbutton start |
| 8 | AMP NO.1 | 30A | Audio system, back door opener |
| 9 | IGCT | 30A | PCU, IGCT NO.2, IGCT NO.3, hybrid system |
| 10 | P CON MAIN | 7.5A | P position control system, hybrid system, smart access system with pushbutton start |
| 11 | AM2 | 7.5A | Smart access system with push-button start, hybrid system, multiport fuel injection system/sequential multiport fuel injection system, P position control system, cruise control system, dynamic radar cruise control system |
| 12 | ECU-B2 | 7.5A | Smart access system with push-button start, multiport fuel injection system/ sequential multiport fuel injection system, trunk opener switch |
| 13 | MAYDAY | 10A | Lexus link system |
| 14 | ECU-B3 | 10A | Air conditioning system, rear window defogger, mirror heater |
| 15 | TURN & HAZ | 10A | Turn signal lights, emergency flashers |
| 16 | ETCS | 10A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 17 | ABS MAIN NO.1 | 20A | Electronically controlled brake system |
| 18 | P/l 2 | 40A | P position control system, hybrid system, transmission, smart access system with push-button start, horn, headlights (low beam), back-up lights |
| 19 | ABS MTR1 | 30A | Electronically controlled brake system |
| 20 | ABS MTR2 | 30A | Electronically controlled brake system |
| 21 | H-LP HI MAIN | 20A | Headlights (high beam) |
| 22 | AMP NO.2 | 30A | Audio system, navigation system |
| 23 | DOOR NO.2 | 25A | No circuit |
| 24 | P/I 1 | 60A | IG2.EFI MAIN, BATT FAN |
| 25 | EPS | 60A | Electric power steering system |
| 26 | PCU | 10A | Hybrid system |
| 27 | IGCT NO.2 | 10A | Smart access system with push-button start, hybrid system, P position control system, multiport fuel injection sys-tem/sequential multiport fuel injection system |
| 28 | MIR HTR | 10A | Rear window defogger, mirror heater |
| 29 | RAD NO.1 | 15A | Audio system, navigation system |
| 30 | DOME | 10A | Interior lights, antiglare inside rear view mirror, audio system, navigation system, garage door opener |
| 31 | ECU-B | 7.5A | Smart access system with push-button start, air conditioning system, gauges and meters, outside rear view mirror, clock, seats position memory, electric tilt & telescopic steering wheel |
| 32 | H-LP LH HI | 10A | Left-hand headlight (high beam) |
| 33 | H-LP RH HI | 10A | Right-hand headlight (high beam) |
| 34 | EFI NO.2 | 10A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 35 | IGCT NO.3 | 10A | Hybrid system |
| 36 | SPARE | 30A | Spare fuse |
| 37 | SPARE | 10A | Spare fuse |
| 38 | SPARE | 7.5A | Spare fuse |
| 39 | EFI MAIN | 20A | EFI NO.2, fuel system |
| 40 | BATT FAN | 10A | Battery cooling fan |
| 41 | IG2 | 20A | Hybrid system, multiport fuel injection system/sequential multiport fuel injection system, MET, IGN |
Instrument Panel Fuse Box
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | TAIL | 10A | Parking lights, tail lights, license plate lights, side maker lights, front fog lights |
| 2 | PANEL | 10A | Navigation system, audio system, air conditioning system, emergency flashers switch, wiper de-icer switch, seat heater switch, P position switch, headlight cleaner switch, front passenger’s seat belt reminder light, power window switch, VSC-OFF switch, HUD switch, AFS-OFF switch, POWER ·ECO MODE switch, EV mode switch, view select switch, trunk opener switch, fuel lid opener switch, glove box light, rear sunshade switch, remote touch, rear view mirror switch |
| 3 | IGN | 10A | Electronically controlled brake system, multiport fuel injection system/ sequential multiport fuel injection system, Lexus link system, smart access system with push-button start, stop lights |
| 4 | MET | 7.5A | Meters |
| 5 | WIP | 30A | Windshield wipers |
| 6 | WASHER | 15A | Windshield washer |
| 7 | A/C | 10A | Air conditioning system |
| 8 | GAUGE | 10A | AFS, turn signal lights, emergency flasher lights |
| 9 | AFS | 10A | Adaptive front-lighting system |
| 10 | ECU-IG NO.2 | 10A | Pre-collision system, LKA, dynamic radar cruise control, air conditioning system, outside rear view mirror, HUD, navigation system, tire inflation pressure warning system |
| 11 | ECU-IG NO.1 | 10A | Rear view mirror, electronically controlled brake system, electric power steering system, moon roof, rain-sensing windshield wiper, emergency flashers switch, air conditioning system, electric head restraints, driver monitor, steering switch, seat heaters/ ventilators, electric tilt & telescopic steering wheel, rear sunshade, AFS |
| 12 | S/ROOF | 30A | Electric moon roof |
| 13 | DOOR RL | 25A | Rear power window (left-side) |
| 14 | DOOR RR | 25A | Rear power window (right-side) |
| 15 | SHADE RR | 10A | Rear sunshade |
| 16 | D FR DOOR | 25A | Driver’s side power window, outside rearview mirror |
| 17 | P FR DOOR | 25A | Passenger’s side power window, outside rear view mirror |
| 18 | TI&TE | 30A | Electric tilt & telescopic steering wheel |
| 19 | STOP | 10A | Stop lights, electronically controlled brake system |
| 20 | A/C NO.2 | 10A | No circuit |
| 21 | RR FOG | 7.5A | No circuit |
| 22 | FUEL OPN | 7.5A | Trunk opener switch, fuel filler door opener switch |
| 23 | OBD | 7.5A | On-board diagnosis |
| 24 | PWR SEAT FL | 30A | Driver’s side power seat |
| 25 | FR FOG | 15A | Front fog lights |
| 26 | PWR SEAT FR | 30A | Passenger’s side power seat |
| 27 | PSB | 30A | Pre-collision seat belts system |
| 28 | WELCAB | 30A | No circuit |
| 29 | DOOR NO.1 | 25A | Power door lock system |
| 30 | SEAT HTR FL | 10A | Driver’s side seat heater |
| 31 | SEAT HTR FR | 10A | Passenger’s side seat heater |
| 32 | RAD NO.2 | 7.5A | Navigation system, audio system, air conditioning system, HUD, remote touch |
| 33 | PWR OUTLET | 15A | Power outlet |
| 34 | ECU-ACC | 10A | Rear view mirror, air conditioning system, audio system, navigation system |
2012
Engine Compartment Fuse Box
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | HTR | 50A | Air conditioning system |
| 2 | RDI | 40A | Electric cooling fans |
| 3 | OIL PMP | 10A | Hybrid system, transmission |
| 4 | S-HORN | 10A | No circuit |
| 5 | ABS MAIN NO.2 | 7.5A | Electronically controlled brake system |
| 6 | H-LP CLN | 30A | Headlight cleaner |
| 7 | P-CON MTR | 30A | P position control system, hybrid system, smart access system with push-button start |
| 8 | AMP NO.1 | 30A | Audio system, back door opener |
| 9 | IGCT | 30A | PCU, IGCT NO.2, IGCT NO.3, hybrid system |
| 10 | P CON MAIN | 7.5A | P position control system, hybrid system, smart access system with pushbutton start |
| 11 | AM2 | 7.5A | Smart access system with push-button start, hybrid system, multiport fuel injection system/sequential multiport fuel injection system, P position control system, cruise control system, dynamic radar cruise control system |
| 12 | ECU-B2 | 7.5A | Smart access system with push-button start, multiport fuel injection system/ sequential multiport fuel injection system, trunk opener switch |
| 13 | MAYDAY | 10A | MAYDAY |
| 14 | ECU-B3 | 10A | Air conditioning system, rear window defogger, mirror heater |
| 15 | TURN & HAZ | 10A | Turn signal lights, emergency flashers |
| 16 | ETCS | 10A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 17 | ABS MAIN NO.1 | 20A | Electronically controlled brake system |
| 18 | P/l 2 | 40A | P position control system, hybrid system, transmission, smart access system with push-button start, horn, headlights (low beam), back-up lights |
| 19 | ABS MTR1 | 30A | Electronically controlled brake system |
| 20 | ABS MTR2 | 30A | Electronically controlled brake system |
| 21 | H-LP HI MAIN | 20A | Headlights (high beam) |
| 22 | AMP NO.2 | 30A | Audio system, navigation system |
| 23 | DOOR NO.2 | 25A | Power door lock system |
| 24 | P/I 1 | 60A | IG2, EFI MAIN, BATT FAN |
| 25 | EPS | 60A | Electric power steering system |
| 26 | PCU | 10A | Hybrid system |
| 27 | IGCT NO.2 | 10A | Smart access system with push-button start, hybrid system, P position control system, multiport fuel injection sys-tem/sequential multiport fuel injection system |
| 28 | MIR HTR | 10A | Rear window defogger, mirror heater |
| 29 | RAD NO.1 | 15A | Audio system, navigation system |
| 30 | DOME | 10A | Interior lights, antiglare inside rear view mirror, audio system, navigation system, garage door opener |
| 31 | ECU-B | 7.5A | Smart access system with push-button start, air conditioning system, gauges and meters, outside rear view mirror, clock, seats position memory, electric tilt & telescopic steering wheel |
| 32 | H-LP LH HI | 10A | Left-hand headlight (high beam) |
| 33 | H-LP RH HI | 10A | Right-hand headlight (high beam) |
| 34 | EFI NO.2 | 10A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 35 | IGCT NO.3 | 10A | Hybrid system |
| 36 | SPARE | 30A | Spare fuse |
| 37 | SPARE | 10A | Spare fuse |
| 38 | SPARE | 7.5A | Spare fuse |
| 39 | EFI MAIN | 20A | EFI NO.2, fuel system |
| 40 | BATT FAN | 10A | Battery cooling fan |
| 41 | IG2 | 20A | Hybrid system, multiport fuel injection system/sequential multiport fuel injection system, MET, IGN |
Instrument Panel Fuse Box
| № | Fuse | A | Circuit |
|---|---|---|---|
| 1 | TAIL | 10A | Parking lights, tail lights, license plate lights, side maker lights, front fog lights |
| 2 | PANEL | 10A | Navigation system, audio system, air conditioning system, emergency flashers switch, wiper de-icer switch, seat heater switch, P position switch, headlight cleaner switch, front passenger’s seat belt reminder light, power window switch, VSC-OFF switch, HUD switch, AFS-OFF switch, POWER ·ECO MODE switch, EV mode switch, view select switch, trunk opener switch, fuel lid opener switch, glove box light, rear sunshade switch, remote touch, rear view mirror switch |
| 3 | IGN | 10A | Electronically controlled brake system, multiport fuel injection system/ sequential multiport fuel injection system, smart access system with pushbutton start, stop lights |
| 4 | MET | 7.5A | Meters |
| 5 | WIP | 30A | Windshield wipers |
| 6 | WASHER | 15A | Windshield washer |
| 7 | A/C | 10A | Air conditioning system |
| 8 | GAUGE | 10A | AFS, turn signal lights, emergency flasher lights |
| 9 | AFS | 10A | Adaptive front-lighting system |
| 10 | ECU-IG NO.2 | 10A | Pre-collision system, LKA, dynamic radar cruise control, air conditioning system, outside rear view mirror, HUD, navigation system, tire inflation pressure warning system |
| 11 | ECU-IG NO.1 | 10A | Rear view mirror, electronically controlled brake system, electric power steering system, moon roof, rain-sensing windshield wiper, emergency flashers switch, air conditioning system, electric head restraints, driver monitor, steering switch, seat heaters/ ventilators, electric tilt & telescopic steering wheel, rear sunshade, AFS |
| 12 | S/ROOF | 30A | Electric moon roof |
| 13 | DOOR RL | 25A | Rear power window (left-side) |
| 14 | DOOR RR | 25A | Rear power window (right-side) |
| 15 | SHADE RR | 10A | Rear sunshade |
| 16 | D FR DOOR | 25A | Driver’s side power window, outside rearview mirror |
| 17 | P FR DOOR | 25A | Passenger’s side power window, outside rear view mirror |
| 18 | TI&TE | 30A | Electric tilt & telescopic steering wheel |
| 19 | STOP | 10A | Stop lights, electronically controlled brake system |
| 20 | A/C NO.2 | 10A | No circuit |
| 21 | RR FOG | 7.5A | No circuit |
| 22 | FUEL OPN | 7.5A | Trunk opener switch, fuel filler door opener switch |
| 23 | OBD | 7.5A | On-board diagnosis |
| 24 | PWR SEAT FL | 30A | Driver’s side power seat |
| 25 | FR FOG | 15A | Front fog lights |
| 26 | PWR SEAT FR | 30A | Passenger’s side power seat |
| 27 | PSB | 30A | Pre-collision seat belts system |
| 28 | WELCAB | 30A | No circuit |
| 29 | DOOR NO.1 | 25A | Power door lock system |
| 30 | SEAT HTR FL | 10A | Driver’s side seat heater |
| 31 | SEAT HTR FR | 10A | Passenger’s side seat heater |
| 32 | RAD NO.2 | 7.5A | Navigation system, audio system, air conditioning system, HUD, remote touch |
| 33 | PWR OUTLET | 15A | Power outlet |
| 34 | ECU-ACC | 10A | Rear view mirror, air conditioning system, audio system, navigation system |