Lexus IS350 (2014 – 2024) Fuse Box Location & Diagrams
The Lexus IS350 (2014–2024) features multiple fuse boxes that protect essential electrical systems throughout the vehicle. This article provides clear fuse box locations, detailed fuse diagrams, and fuse assignments to help you quickly identify, inspect, and replace blown fuses for easier troubleshooting and reliable vehicle maintenance.
Fuse Box Location
Passenger Compartment Fuse Box
The fuse panel is located below the dashboard.
Engine Compartment Fuse Boxes
Push the tab in and lift the lid off.
Fuse Box Diagrams
Passenger Compartment Fuse Box
| № | Amps | Name | Description |
|---|---|---|---|
| 1 | 10A | ECU-B | Engine control unit |
| 2 | 15A | DOME | Dome light and interior light |
| 3 | 7.5A | AM2 | Starter system |
| 4 | 10A | J/B-B | Junction box bus |
| 5 | 15A | RADIO | Radio and audio system |
| 6 | 7.5A | OBD | On-board diagnostics |
| 7 | 7.5A | SHADE RR | SHADE RR |
| 8 | 7.5A | TRUNK OPN | Power trunk lid opener |
| 9 | 5A | WIPER SW-IG | Wipers |
| 10 | 10A | ECU-IG1 NO.2 | ECU-IG1 NO.2 |
| 11 | 7.5A | BKUP LP | Backup lights |
| 12 | 10A | ECU-IG1 NO.1 | ECU-IG1 NO.1 |
| 13 | 10A | J/B-AM | J/B-AM |
| 15 | 5A | P/W | Power windows |
| 16 | 10A | FOG RR | Rear fog lights |
| 17 | 7.5A | A/C | Air conditioning |
| 18 | 15A | HAZ | Hazard light |
| 19 | 20A | STRG LOCK | Steering lock |
| 20 | 5A | ODS | Occupant detection system (airbag) |
| 21 | 10A | CAPACITOR | CAPACITOR |
| 22 | 5A | SMART | Smart key system |
| 23 | 7.5A | ECU-ACC | Engine control unit |
| 24 | 15A | TAIL | Tail lights |
| 25 | 7.5A | PANEL | Instrument panel lights |
| 26 | 10A | IG1 NO.2 | IG1 NO.2 |
| 27 | 10A | IG1 NO.1 | IG1 NO. |
| 28 | 20A | TI&TE | Power tilt and power telescopic |
| 29 | 20A | S/ROOF | Sunroof |
| 30 | 15A | DOOR DBL/L | Door double locking |
| 31 | 7.5A | METER | Instrument cluster |
| 32 | 7.5A | A/BAG-IG2 | Airbag |
| 33 | 7.5A | IGN NO.1 | IGN NO.1 |
| 34 | 7.5A | IGN NO.2 | Ignition |
| 35 | 30A | P/SEAT F/L | Power seats |
| 36 | 30A | DOOR F/L | Front left door lock |
| 37 | 15A | P/OUTLET NO.1 | Auxiliary power outlet |
| 39 | 30A | DOOR R/L | Rear left door |
| 40 | 30A | AMP NO.2 | Audio system |
| 41 | 30A | AMP NO.1 | AMP NO.1 |
| 42 | 30A | D/L | Power door lock system |
| 43 | 15A | S/HTR F/L | Front seat heater |
| 44 | 15A | S/HTR F/R | Seat heater |
| 45 | 30A | P/SEAT F/R | Power seats |
| 46 | 10A | IG1 NO.3 | IG1 NO.3 |
| 47 | 30A | DOOR F/R | Front right door |
| 48 | 30A | DOOR R/R | Rear right door |
Engine Compartment Fuse Boxes
Fuse Box №1
| № | Amps | Name | Description |
|---|---|---|---|
| 1 | 10A | EFI NO.2 | Multiport fuel injection system |
| 2 | 25A | EFI-MAIN | Multiport fuel injection system |
| 3 | 15A | A/F | Air fuel ratio sensor |
| 4 | 10A | P INJ | Fuel injectors |
| 5 | 10A | IG2 | Protects several circuits |
| 6 | 20A | IG2-MAIN | Protects several circuits |
| 7 | 15A | H-LP RH-LO | Right hand headlight low beam |
| 8 | 15A | H-LP LH-LO | Left-hand headlight low beam |
| 9 | 5A | DCM | Data communication module (telematics system) |
| 10 | 7.5A | ICS | ICS |
| 11 | 5A | STOP | Stop lights |
| 12 | 15A | HORN | Horn |
| 13 | 10A | S-HORN | Horn / anti-theft deterrent |
| 14 | 10A | ETCS | Electronic throttle control system |
| 15 | 20A | INJ | Fuel injectors (Except 2UR-GSE) |
| 25A | INJ | Fuel injectors (2UR-GSE) | |
| 16 | 10A | ENG-IG NO.1 | Engine control system |
| 17 | 20A | AVS | AVS |
| 18 | 5A | EPS-IG | Electric power steering |
| 19 | 25A | WIPER | Wipers |
| 20 | 5A | ENG-IG NO.2 | Engine control system |
| 21 | 5A | ALT-IG | Battery and charging system |
| 22 | 5A | RADAR-IG | RADAR-IG |
| 23 | 20A | WASHER | Windshield washer |
| 24 | 7.5A | A/C W/PMP | Air conditioning |
| 25 | 15A | STRG HTR | Heated steering wheel |
| 26 | 15A | MIR HTR | Mirror heater |
| 27 | 10A | NOISE FILTER | NOISE FILTER |
| 28 | 40A | IG1-MAIN | Protects several circuits |
| 29 | 30A | H-LP CLN | Headlight cleaner |
| 30 | 50A | FAN NO.1 | Electric cooling fan |
| 31 | 80A | FAN | Electric cooling fan |
| 32 | 80A | FAN | Electric cooling fan |
| s | SPARE | Spare fuse |
Fuse Box №2
| № | Amps | Description |
|---|---|---|
| 1 | 120A | ENG-AM |
| 2 | 120A | J/B LH-AM |
| 3 | 150A | ALT |
| 4 | 100A | P/I-B |
| 5 | 40A | VGRS (2GR-FKS), BBC NO.1 (8AR-FTS), VVT (2UR-GSE) |
| 6 | 5A | EPS-B |
| 7 | 7.5A | ALT-S |
| 8 | 20A | FUEL PMP (Except 2UR-GSE) |
| 30A | FUEL PMP (2UR-GSE) | |
| 9 | 20A | ST NO.2 |
| 10 | 25A | INJ NO.2 |
| 11 | 30A | D/C CUT |
| 12 | 30A | H-LP MAIN LH |
| 13 | 50A | ABS NO.2 |
| 14 | 30A | ST No. 1 |
| 15 | 50A | ENG-B |
| 16 | 80A | EPS |
| 17 | 80A | J/B LH-B |
| 19 | 40A | BBC NO.2 (8AR-FTS) |
| 20 | 50A | HTR |
| 21 | 30A | ABS NO.1 |
| 22 | 50A | PTC HTR 1 |
| 23 | 50A | FAN NO.2 |
| 24 | 50A | PTC HTR 2 |
| 25 | 80A | P/I-AM |
| 27 | 10A | MPX-B NO.1 |
| 28 | 7.5A | DRL LH |
| 29 | 7.5A | DRL RH |
| 30 | 5A | WIPER-S |
| 31 | 5A | COMB SW |
| 32 | 30A | H-LP MAIN RH |
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