Lexus RX350 (2023 – 2025) Fuse Box Location & Diagrams
Find the fuse box locations and detailed fuse diagrams for the Lexus RX350 (2023–2025). This article helps you identify every fuse and relay, making it easier to diagnose electrical issues, replace blown fuses, and maintain your vehicle’s electrical system with confidence and accuracy.
Fuse Box Location
Passenger Compartment Fuse Box
The fuse panel is located below the dashboard.
Engine Compartment Fuse Boxes
Push in the claw and remove the lid.
Fuse Box Diagrams
Passenger Compartment Fuse Box
| № | Amps | Description |
|---|---|---|
| 1 | 7.5A | +BA NO.1 |
| 2 | 7.5A | +BA NO.2 |
| 3 | 20A | DOOR R/R |
| 4 | 20A | DOOR R/L |
| 5 | 10A | ECU-B NO.3 |
| 7 | 7.5A | OBD |
| 8 | 20A | DOOR F/R |
| 9 | 20A | DOOR F/L |
| 10 | 30A | 2ND BATT |
| 12 | 10A | ECU-DCC NO.1 |
| 13 | 10A | ECU-DCC NO.3 |
| 14 | 15A | HAZ |
| 15 | 10A | FUEL OPN |
| 16 | 10A | TAIL |
| 17 | 5A | PANEL |
| 18 | 7.5A | ECU-IGR NO.2 |
| 19 | 15A | WIPER RR |
| 20 | 5A | EPS-IGR |
| 21 | 10A | ECU-IGR NO.1 |
| 22 | 10A | A/BAG-IGR |
| 23 | 7.5A | ECU-IGR NO.3 |
| 24 | 7.5A | ECU-B NO.1 |
| 25 | 7.5A | ECU-B NO.2 |
| 26 | 7.5A | STOP |
| 27 | 7.5A | ECU-ACC |
| 28 | 10A | STRG LOCK |
| 29 | 7.5A | AM2 |
| 30 | 5A | DCM |
| 34 | 20A | TI&TE |
| 35 | 30A | AMP NO.1 |
| 36 | 7.5A | ECU-IGR NO.4 |
| 37 | 5A | METER-IGR |
| 38 | 15A | P/OUTLET NO.1 |
| 39 | 20A | DOME |
| 40 | 20A | DOOR DBL/L |
| 41 | 7.5A | USB NO.1 |
| 42 | 7.5A | USB NO.2 |
| 43 | 15A | S/HTR F/L |
| 44 | 15A | S/HTR F/R |
Engine Compartment Fuse Boxes
Fuse Box №1
| № | Amps | Name | Description |
| 1 | 60A | INP STD NO.3 | INP STD NO.3 |
| 3 | 80A | P/I | P/I |
| 4 | 80A | EPS | Electric power steering |
| 5 | 180A | ALT | Battery and charging system |
| 6 | 120A | R/B NO.2 | R/B NO.2 |
| 7 | 120A | FAN NO.1 | Electric cooling fan |
| 8 | 120A | INP STD NO.2 | INP STD NO.2 |
| 9 | 30A | ABS NO.2 | Anti-lock braking system |
| 10 | 30A | ST NO.1 | Starter system |
| 11 | 50A | D INJ | D INJ |
| 12 | 40A | BBC NO.2 | Stop & Start system |
| 13 | 30A | IGCT | IGCT |
| 14 | 50A | ABS NO.1 | Anti-lock braking system |
| 15 | 30A | WASHER | Windshield washer |
| 16 | 40A | BBC NO.1 | Stop & Start system |
| 17 | 20A | EFI MAIN | Multiport fuel injection system |
| 18 | 7.5A | DMC | DMC |
| 19 | 30A | AMP NO.2 | Audio system |
| 20 | 30A | EFI MAIN NO.1 | Multiport fuel injection system |
| 21 | 15A | TV | TV |
| 22 | 15A | E-LATCH NO.2 | E-LATCH NO.2 |
| 23 | 15A | E-LATCH NO.4 | E-LATCH NO.4 |
| 24 | 10A | INJ | Fuel injectors |
| 25 | 15A | E-LATCH NO.1 | E-LATCH NO.1 |
| 26 | 15A | E-LATCH NO.3 | E-LATCH NO.3 |
| 27 | 7.5A | BATT-S NO.1 | Battery and charging system |
| 20A | INV W/PMP NO.2 | INV W/PMP NO.2 | |
| 28 | 30A | TOWING-B | Trailer lights |
| 29 | 10A | EFI NO.1 | Multiport fuel injection system |
| 30 | 15A | EFI-B NO.1 | Multiport fuel injection system |
| 31 | 30A | IGP-MAIN NO.2 | Ignition |
| 32 | 30A | AMP NO.1 | Audio system |
| 33 | 30A | WIPER | Wipers |
| 34 | 30A | IGP-MAIN NO.1 | Ignition |
| 35 | 20A | D/C CUT | D/C CUT |
| 36 | 10A | HORN | Horn |
| 37 | 30A | R/B NO.3 | R/B NO.3 |
| 38 | 30A | EFI-MAIN NO.3 | Multiport fuel injection system |
| 39 | 7.5A | BATT-S NO.2 | Battery and charging system |
| 40 | 10A | ECU- DCC NO.2 | Engine control unit |
| 41 | 15A | EDU NO.1 | Emissions control system |
| 42 | 15 A | EFI-B NO.2 | Multiport fuel injection system |
| 43 | 15A | EDU NO.2 | Emissions control system |
| 44 | 10A | EFI NO.4 | Multiport fuel injection system |
| 10A | EFI NO.6 | Multiport fuel injection system | |
| 46 | 50A | HTR | Air conditioning system |
| 47 | 50A | INP STD NO.1 | INP STD NO.1 |
| 48 | 30A | P CON MTR | P CON MTR |
Fuse Box №2
| № | Amps | Description |
| 1 | 20A | FOOT HTR PA |
| 2 | 15A | FOOT HTR DR |
| 3 | 15A | S/HTR R/L |
| 4 | 15A | S/HTR R/R |
| 8 | 15A | S/HTR R/L NO.2 |
| 9 | 7.5A | EFI NO.2 |
| 10 | 7.5A | EFI NO.2 |
| 11 | 7.5A | EFI NO.5 |
| 12 | 7.5A | EFI NO.8 |
| 13 | 7.5A | EFI NO.8 |
| 14 | 10A | STRG HTR |
| 16 | 15A | AVS |
| 17 | 15A | NOISE FILTER |
| 18 | 15A | M-P/SEAR R/L |
| 20 | 15A | M-P/SEAT R/R |
| 21 | 30A | TOWING-ALT |
| 23 | 40A | A/C-MAIN |
| 24 | 30A | P/SEAT F/R |
| 25 | 30A | H-LP CLN |
| 26 | 7.5A | FUEL OPN NO.2 |
| 27 | 10A | CON MAIN |
| 28 | 20A | INV |
| 29 | 15A | DEICER |
| 30 | 10A | 4WD |
| 31 | 30A | SHTR-MAIN NO.2 |
| 34 | 30A | P/SEAT R/L |
| 35 | 30A | P/SEAT R/R |
| 36 | 40A | AMD2 |
| 39 | 10A | PCU RR |
| 40 | 7.5A | INV W/PMP No.1 |
| 41 | 7.5A | G/SHUTTER |
| 42 | 7.5A | ECU-IGP NO.3 |
| 43 | 7.5A | PM-IGCT |
| 44 | 7.5A | ECU-IGP No.1 |
| 48 | 7.5A | S-HORN |
| 49 | 7.5A | PCU FR/ PCU |
| 50 | 7.5A | IGCT NO.3 |
| 51 | 7.5A | IGCT NO.2 |
| 52 | 7.5A | IGCT NO.3 |
| 53 | 7.5A | EFI NO.7 / ECU IGP NO.2 |
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