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Fuse box diagram (fuse layout), location, and assignment of fuses Lexus RX 350 (AL10) (2010, 2011, 2012, 2013, 2014, 2015).
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 Diagram
The fuse box is located below the dashboard on the left side. Remove the lid to access.
| № | Fuse | A | Function |
|---|---|---|---|
| 1 | P/POINT | 15 | Power outlet |
| 2 | ECU-ACC | 10 | Navigation system, outside rear view mirror (2010-2012), multiplex communication system, multi-information display, head-up display, air conditioning system (2013-2015), audio system, (2013-2015) |
| 3 | CIG | 15 | Power outlet |
| 4 | RADIO №2 | 7.5 | Audio system, power outlet (2010-2012), navigation system (2013-2015) |
| 5 | GAUGE №1 | 10 | Emergency flashers, navigation system, head-up display , air conditioning system (2013-2015), charging system (2013-2015) |
| 6 | ECU-IG1 №3 | 10 | Outside rear view mirror, windshield wipers and washer, seat heaters, starter system, power outlet, moon roof, Automatic High Beam (2010-2012), air conditioning system (2013-2015) |
| 7 | ECU-IG1 №1 | 10 | Multiplex communication system, electric power steering system, shift lock control system, tilt and telescopic steering, starter system, automatic transmission system, power back door, tire pressure warning system, vehicle stability control system (2013-2015), pre-collision system (2013-2015) |
| 8 | S/ROOF | 30 | Moon roof |
| 9 | FUEL OPN | 7.5 | Fuel filler door opener |
| 10 | PSB | 30 | Pre-collision seat belt |
| 11 | TI&TE | 30 | Tilt and telescopic steering system |
| 12 | DR LOCK | 10 | Power door lock system |
| 13 | FR FOG | 15 | 2010-2012: Front log lights |
| FR FOG | 7.5 | 2013-2015: Front log lights | |
| 14 | P-SEAT LH | 30 | Power seat (left-side) |
| 15 | 4WD | 7.5 | AWD system |
| 16 | INVERTER | 20 | 2013-2015: Power outlet |
| 17 | RR FOG | 7.5 | - |
| 18 | D/LALTB | 25 | Multiplex communication system, power door lock system (2013-2015), power back door (2013-2015) |
| 19 | HEATER | 10 | 2010-2012: Air conditioning system |
| ESP | 10 | 2013-2015: Electric power steering system | |
| 20 | ECU-IG1 №2 | 10 | 2010-2012: Air conditioning system, multiport fuel injection system/sequential multiport fuel injection system, SRS airbag system, multi-information display |
| 2013-2015: Intuitive parking assist, AWD system, pre-collision seat belt | |||
| 21 | PANEL | 10 | 2010-2012: Switch illumination, navigation system, height control system, headlight cleaner, windshield wiper de-icer, seat heater, power back door, audio system, multi-information display, air conditioning system |
| 2013-2015: Switch illumination, navigation system, audio system, multi-information display, air conditioning system, multiplex communication system automatic, transmission system | |||
| 22 | TAIL | 10 | Parking lights, side marker lights, tail lights, license plate lights, front fog lights, towing converter |
| 23 | AIR SUS | 20 | 2010-2012: Electronically modulated air suspension system |
| 24 | P-SEAT RH | 30 | Power seat (right-side) |
| 25 | OBD | 7.5 | On-Board diagnosis |
| 26 | FR DOOR | 25 | Front power window (right-side), outside rear view mirror (2013-2015) |
| 27 | RR DOOR | 25 | Rear power window (right-side) |
| 28 | FL DOOR | 25 | Front power window (left-side), outside rear view mirror (2013-2015) |
| 29 | RL DOOR | 25 | Rear power window (left-side) |
| 30 | FR WASH | 25 | Windshield wipers and washer |
| 31 | RR WIP | 15 | Windshield wipers and washer |
| 32 | RR WASH | 20 | Windshield wipers and washer |
| 33 | FR WIP | 30 | Windshield wipers and washer |
| 34 | ECU IG2 | 10 | 2010-2012: Starter system, Intuitive parking assistsensor, AWD system |
| 2013-2015: Multiport fuel injection system/sequential multiport fuel injection system, front passenger occupant classification system, SRS airbag system, stop lights, electronic controlled transmission, steering lock system | |||
| 35 | GAUGE №2 | 7.5 | 2010-2012: Starter system |
| 2013-2015: Gauge and meters | |||
| 36 | RH S-HTR | 15 | Seat heater (right-side) |
| 37 | LH S-HTR | 15 | Seat heater (left-side) |
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Engine Compartment Fuse Box Diagram
Push the tab in and lift the lid off.
| № | Fuse | A | Function |
|---|---|---|---|
| 1 | RDI FAN №1 | 80 | Electric cooling fans |
| 2 | RR DEF | 50 | Rear window defogger |
| 3 | AIR SUS | 50 | 2010-2012: Electronically modulated air suspension system |
| 4 | HTR | 50 | Air conditioning system |
| 5 | SPARE | 30 | - |
| 6 | SPARE | 40 | - |
| 7 | ABS №2 | 30 | 2010-2012: Anti-lock brake system |
| 2013-2015: Vehicle stability control | |||
| 8 | H-LP CLN | 30 | Headlight cleaner |
| 9 | PBD | 30 | Power back door system |
| 10 | ST | 30 | Starter system |
| 11 | PD | 50 | 2010-2012: Daytime running light system, A/F, H-LPRHHI.H-LP LH LO, H-LP RH LO, H-LP LH HI, HORN, S-HORN, multiplex communication system, multiport fuel injection system/ sequential multiport fuel injection system |
| 2013-2015: A/F, H-LP RH HI, H-LP LH LO, H-LP RH LO, H-LP LH HI, HORN, SHORN | |||
| 12 | ABS №1 | 50 | 2010-2012: Anti-lock brake system |
| 2013-2015: Vehicle stability control | |||
| 13 | EPS | 60 | Electric power steering system |
| 14 | ALT | 140 | 2010-2012: FUEL OPN, DR LOCK, OBD, RR FOG, S/ROOF, 4WD, INVERTER, ECU IG1 №1, ECU IG1 №2, PANEL, GAUGE №1 |
| 2013-2015: IG1 MAIN, TOWING BATT, DEICER, TOWING, STOP, RDI FAN №1, FILTER, RR DEF, AIR SUS, HEATER, ABS №2, H-LP CLN, PBD, ECU-IG1 №1, ECU-IG1 №3, GAUGE №1, ECU-IG1 №2, EPS, FR WIP, RR WIP, FR WASH, RR WASH, RH S-HTR, LH S-HTR, TAIL, PANEL, D/L ALT B, FR FOG, FR DOOR, FL DOOR, RR DOOR, RL DOOR, PSB, P-SEAT LH, P-SEAT RH, TI&TE, FUEL OPN, DR LOCK, OBD, RR FOG, S/ROOF, 4WD, INVERTER, ECU-ACC, P/POINT, CIG, RADIO №2 | |||
| 15 | AMP1 | 30 | Audio system |
| 16 | EFI MAIN | 30 | 2010-2012: Multiport fuel injection system/ sequential multiport fuel injection system, EFI №1, EFI №2 |
| 2013-2015: Multiport fuel injection system/sequential multiport fuel injection system, electronic controlled transmission, EFI №1, EFI №2, F/PMP | |||
| 17 | AMP2 | 30 | Audio system |
| 18 | IG2 | 30 | 2010-2012: Starter system, IGN, GAUGE №2, ECU IG №2 |
| 2013-2015: IGN, GAUGE №2, ECU IG 2 | |||
| 19 | IP JB | 25 | Power door lock system |
| 20 | STR LOCK | 20 | Starter system |
| 21 | RAD №3 | 15 | 2010-2012: Meters and gauges lights, instrument panel lights, navigation system, audio system, rear seat entertainment system |
| 2013-2015: Meters and gauges, navigation system, audio system | |||
| 22 | HAZ | 15 | Emergency flashers |
| 23 | ETCS | 10 | Multiport fuel injection system/ sequential multiport fuel injection system |
| 24 | RAD №1 | 10 | Audio system, navigation system (2013-2015) |
| 25 | AM2 | 7.5 | Starting system |
| 26 | ECU-B№2 | 7.5 | 2010-2012: Air conditioning system, front passenger occupant classification system, starter system |
| 2013-2015: Air conditioning system, front passenger occupant classification system, audio system, vehicle stability control system, power windows | |||
| 27 | MAYDAY/TEL | 7.5 | 2013-2015: MAYDAY/TEL |
| 28 | IMMOBI | 7.5 | 2013-2015: IMMOBI |
| 29 | ALT-S | 7.5 | Charging system |
| 30 | IGN | 10 | 2010-2012: Starter system, multiport fuel injection system/sequential multiport fuel injection system |
| 2013-2015: Multiport fuel injection system/sequential multiport fuel injection system | |||
| 31 | DOME | 10 | Vanity mirror lights, luggage compartment lights, interior lights, personal lights, door courtesy lights (2013-2015), footwell lights (2013-2015), scuff lights (2013-2015) |
| 32 | ECU-B №1 | 7.5 | 2010-2012: Interior lights, personal lights, tilt and telescopic steering, multiplex communication system, meters and gauges, power window, driving position memory system, power seats, power back door, head-up display, starter system, air conditioning system, power door lock system |
| ECU-B №1 | 10 | 2013-2015: Tilt and telescopic steering, multiplex communication system, meters and gauges, driving position memory, power seats, power back door, headup display, starter system, outside rear view mirror, steering sensor, garage door opener | |
| 33 | EFI №1 | 10 | Multiport fuel injection system/ sequential multiport fuel injection system, electronic controlled transmission (2013-2015) |
| 34 | WIP-S | 7.5 | 2010-2012: Windshield wipers and washer |
| 2013-2015: Cruise control | |||
| 35 | AFS | 7.5 | 2010-2012: Adaptive front-lighting system |
| ECU-IG1 №4 | 10 | 2013-2015: Air conditioning system, rear window defogger, vehicle stability control system, electric cooling fans | |
| 36 | BK/UP LP | 7.5 | Buck-up lights |
| 37 | HEATER №2 | 7.5 | 2010-2012: Air conditioning system, AWD system |
| ECU-IG1 №5 | 2013-2015: Air conditioning system | ||
| 38 | ECU IG1 | 10 | 2010-2012: Adaptive front-lighting system, headlight cleaner, cooling fan, cruise control, electronically modulated air suspension system, vehicle stability control, vehicle dynamics integrated management |
| ECU-IG1 №6 | 2013-2015: Head light cleaner, cruise control, vehicle stability control, air conditioning system, Blind Spot Monitor | ||
| 39 | EFI №2 | 10 | Multiport fuel injection system/sequential multiport fuel injection system |
| 40 | F/PUMP | 15 | Multiport fuel injection system/sequential multiport fuel injection system |
| 41 | DEICER | 25 | Windshield wipers and washer |
| 42 | STOP | 7.5 | 2010-2012: Vehicle stability control, vehicle dynamics integrated management, high mounted stoplight |
| 2013-2015: Vehicle stability control, vehicle dynamics integrated management, stop lights, electronic controlled transmission, multiport fuel injection system/sequential multiport fuel injection system, shift lock control system, starter system | |||
| 43 | TOWING BATT | 20 | Trailer battery |
| 44 | TOWING | 30 | Trailer lights |
| 45 | FILTER | 10 | 2010-2012: Condenser |
| 46 | IG1 MAIN | 30 | 2010-2012: ECU IG1, BK/UPLP, HEATER №2, AFS |
| 2013-2015: ECU-IG1 №6, BK/UP LP, ECU IG1 №5, ECU-IG1 №4 | |||
| 47 | H-LP RH HI | 15 | Right-hand headlight (high beam) |
| 48 | H-LP LH HI | 15 | Left-hand headlight (high beam) |
| 49 | BIXENON | 10 | 2010-2012: Discharge headlight |
| 50 | H-LP RH LO | 15 | Right-hand headlight (low beam) |
| 51 | H-LP LH LO | 15 | Left-hand headlight (low beam) |
| 52 | HORN | 10 | Horn |
| 53 | A/F | 20 | Multiport fuel injection system/ sequential multiport fuel injection system |
| 54 | S-HORN | 7.5 | Security horn |
| 55 | DRL | 7.5 | Daytime running light system |
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