Lexus RX 350 3rd generation was produced in 2009, 2010, 2011, 2012, 2013, 2014 and 2015 with the designation AL10. During this time, the model has undergone restyling. In our post you can find a description of fuses and relays Lexus RX350 3rd generation with fuse box diagrams, their locations and photos. Let’s note the cigarette lighter fuse.
The fuse and relay assignment may vary from the one shown and depends on the year of manufacture, the level of electrical equipment and the region of delivery of your vehicle.
Contents
Passenger compartment
Fuse box
There is a fuse box in the passenger compartment on the left-hand side of the vehicle, under the instrument panel.
Photo example
Check the assignment of the elements with your diagram on the protective cover.
Diagram
Assignment
1 | 15A P/POINT – Power outlet |
2 | 10A ECU-ACC – Navigation, electric mirror control unit (2010-2012), multiplex unit, multi-information display, windscreen indicator, air conditioning (2013-2015), audio system (2013-2015) |
3 | 15A CIG – Cigarette lighter (socket) |
4 | 7.5A RADIO NO. 2 – Audio system, socket (2010-2012), navigation (2013-2015) |
5 | 10A GAUGE NO. 1 – Emergency alarm, navigation, windscreen indicator light , air conditioning (2013-2015), charging system (2013-2015) |
6 | 10A ECU-IG1 NO. 3 – Mirror control unit, wiper and washer, seat heating, starter, power socket, sunroof, automatic high beam control system (2010-2012), air conditioning (2013-2015) |
7 | 10A ECU-IG1 NO.1 – Multiplex unit, electric steering system, transmission selector lock, steering column adjustment, starter, automatic transmission control unit, boot door, tyre pressure check system, vehicle stability control system (2013-2015), pre-emergency safety system (2013-2015) |
8 | 30A S/ROOF – Sunroof |
9 | 7.5A FUEL OPN – Fuel tank filler flap |
10 | 30A PSB – Pre-emergency safety system |
11 | 30A TI&TE – Steering column adjustments |
12 | 10A DR LOCK – Central locking system |
13 | 15A FR FOG – 2010-2012: Front fog lights |
7.5A FR FOG – 2013-2015: Front fog lights | |
14 | 30A P-SEAT LH – Electric left seat drive |
15 | 7.5A 4WD – Four Wheel Drive System |
16 | 20A INVERTER – 2013-2015: Power outlet |
17 | 7.5A RR FOG – Rear Fog Lights |
18 | 25A D/LALTB – Multiplex unit, central locking (2013-2015), boot door (2013-2015) |
19 | 10A HEATER – 2010-2012: Air Conditioner |
10A ESP – 2013-2015: Electric steering system | |
20 | 10A ECU-IG1 NO. 2 – 2010-2012: Air conditioning, engine electronics, multi-information display, passive safety system (SRS) |
2013-2015: Intuitive Park Assist, four-wheel drive system, pre-emergency safety system | |
21 | 10A PANEL – 2010-2012: Light switch, navigation, windscreen wiper, heated seats, tailgate, headlight washer, audio system, air conditioning, multi-information display, height stabilisation system |
2013-2015: Light switch, navigation, audio system, multi-information display, transmission control unit | |
22 | 10A TAIL – Clearance light, licence plate light, front fog lights, trailer connector |
23 | 20A AIR SUS – 2010-2012: Air Suspension |
24 | 30A P-SEAT RH – Electric right seat drive |
25 | 7.5A OBD – On-Board diagnosis |
26 | 25A FR DOOR – Front right window, power mirror (2013-2015) |
27 | 25A RR DOOR – Rear right window lift |
28 | 25A FL DOOR – Front left window, power mirror (2013-2015) |
29 | 25A RL DOOR – Rear left window lift |
30 | 25A FR WASH – Front window washer |
31 | 15A RR WIP – Rear Wiper |
32 | 20A RR WASH – Rear window washer |
33 | 30A FR WIP – Front Wiper |
34 | 10A ECU IG2 – 2010-2012: Starter, Intuitive Park Assist, Four Wheel Drive System |
2013-2015: Engine electronics, front passenger classification system, passive safety system (SRS), brake light bulbs, transmission control unit, steering wheel lockout | |
35 | 7.5A GAUGE NO. 2 – 2010-2012: Starter |
2013-2015: Instrument cluster | |
36 | 15A RH S-HTR – Right seat heater |
37 | 15A LH S-HTR – Left seat heating |
Fuses 1 and 3 for 15A are responsible for the cigarette lighter operation.
Relay box
It is installed behind the fuse box.
Diagram
Designation
- R1 – Fuel filler flap opening relay
- R2 – Relay of rear fog lamps
- R3 – Instrument panel relay
The brake light control relay is mounted side by side, separately outside the block.
Engine compartment
Fuse and relay box
Under the hood, in the engine compartment on the left-hand side is the main fuse and relay box.
Diagram
Allocation
1 | 80A RDI FAN NO. 1 – Cooling system fans |
2 | 50A RR DEF – Rear window heater |
3 | 50A AIR SUS – 2010-2012: Air suspension |
4 | 50A HTR – Air conditioning |
5 | – |
6 | – |
7 | 30A ABS NO.2 – 2010-2012: ABS |
2013-2015: Vehicle Stabilisation System | |
8 | 30A H-LP CLN – Headlight Washer |
9 | 30A PBD – Electric boot opener |
10 | 30A ST – Starter |
11 | 50A PD – 2010-2012: Daytime running lights, engine electronics, fuses: A/F, H-LP RH HI, H-LP LH LO, H-LP RH LO, H-LP LH HI, HORN, S-HORN |
2013-2015: Fuses: A/F, H-LP RH HI, H-LP LH LO, H-LP RH LO, H-LP LH HI, HORN, SHORN | |
12 | 2010-2012: ABS |
50A ABS NO.1 – 2013-2015: Vehicle Stabilisation System | |
13 | 60A EPS – Electric Steering System |
14 | 140A ALT – 2010-2012: Fuses: FUEL OPN, DR LOCK, OBD, RR FOG, S/ROOF, 4WD, INVERTER, ECU IG1 NO. 1, ECU IG1 NO. 2, PANEL, GAUGE NO. 1 |
2013-2015: Fuses: IG1 MAIN, TOWING BATT, DEICER, TOWING, STOP, RDI FAN NO. 1, FILTER, RR DEF, AIR SUS, HEATER, ABS NO. 2, H-LP CLN, PBD, ECU-IG1 NO. 1, ECU-IG1 NO. 3, GAUGE NO. 1, ECU-IG1 NO. 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 NO. 2 | |
15 | 30A AMP1 – Audio System |
16 | 30A EFI MAIN – 2010-2012: Engine electronics, fuses: EFI NO. 1, EFI NO. 2 |
2013-2015: Engine electronics, transmission control unit, fuses: EFI NO. 1, EFI NO. 2, F/PMP | |
17 | 30A AMP2 – Audio system |
18 | 30A IG2 – 2010-2012: Starter, fuses: IGN, GAUGE NO. 2, ECU IG NO. 2 |
2013-2015: Fuses: IGN, GAUGE NO. 2, ECU IG 2 | |
19 | 25A IP JB – Central locking |
20 | 20A STR LOCK – Starter |
21 | 15A RAD NO. 3 – 2010-2012: Instrument cluster illumination, instrument cluster illumination, navigation, audio system, rear passenger entertainment system |
2013-2015: Instrument cluster lighting, navigation, audio system | |
22 | 15A HAZ – Emergency alarm system |
23 | 10A ETCS – Engine Electronics |
24 | 10A RAD NO. 1 – Audio system, navigation (2013-2015) |
25 | 7.5A AM2 – Starter |
26 | 7.5A ECU-BNO. 2 – 2010-2012: Air conditioning, front passenger classification system, starter |
2013-2015: Air conditioning, front passenger classification system, audio system, power windows, vehicle stability system | |
27 | 7.5A MAYDAY/TEL – 2013-2015: MAYDAY/TEL |
28 | 2013-2015: IMMOBI |
29 | 7.5A IMMOBI – Charging system |
30 | 10A IGN – 2010-2012: Starter, engine electronics |
2013-2015: Engine electronics | |
31 | 10A DOME – Luggage compartment lighting, interior lighting, visor mirror lighting, door lamps. footwell lighting |
32 | 7.5A ECU-B NO. 1 – 2010-2012: Interior lighting, steering column adjustment, multiflex unit, instrument cluster. windows, driver’s memory, seat control unit, boot door, windscreen indicator, starter, air conditioning, central locking system. |
10A ECU-B NO. 1 – 2013-2015: Steering column adjustments, multifunction control unit, instrument cluster. driver’s settings memory, seat control unit, boot door, windscreen indicator, starter, mirror control unit, garage door remote control | |
33 | 10A EFI NO. 1 – Engine electronics, transmission control unit (2013-2015) |
34 | 7.5A WIP-S – 2010-2012: Wiper and washer unit |
2013-2015: Cruise control | |
35 | 7.5A AFS – 2010-2012: Adaptive Lighting System |
10A ECU-IG1 NO. 4 – 2013-2015: Air conditioning, heated rear window, cooling fans, vehicle stabilisation system | |
36 | 7.5A BK/UP LP – Back-up lamps |
37 | 7.5A HEATER NO. 2 – 2010-2012: Air conditioning, four-wheel drive system |
ECU-IG1 NO. 5 – 2013-2015: Air conditioner | |
38 | 10A ECU IG1 – 2010-2012: Adaptive lighting system, headlight washer, cooling fan, air suspension, vehicle stabilisation system, integrated vehicle dynamics control system |
ECU-IG1 NO. 6 – 2013-2015: Headlight washer, cruise control, vehicle stabilisation system, blind spot monitoring system | |
39 | 10A EFI NO.2 – Engine electronics |
40 | 15A F/PUMP – Engine electronics |
41 | 25A DEICER – Windscreen wiper and washer |
42 | 7.5A STOP – 2010-2012: Vehicle stabilisation system, integrated vehicle dynamics control system, additional stop signal |
2013-2015: Vehicle stabilisation system, integrated vehicle dynamics control system, brake light bulbs, transmission control unit, engine electronics, transmission selector lock, starter motor | |
43 | 20A TOWING BATT – Trailer battery |
44 | 30A TOWING – Trailer Lighting |
45 | 10A FILTER – 2010-2012: Air conditioner fan |
46 | 30A IG1 MAIN – 2010-2012: Fuses: ECU IG1, BK/UPLP, HEATER NO. 2,AFS |
2013-2015: Fuses: ECU-IG1 NO. 6, BK/UP LP, ECU IG1 NO. 5, ECU-IG1 NO. 4 | |
47 | 15A H-LP RH HI – Right high beam |
48 | 15A H-LP LH HI – Left high beam |
49 | 10A BIXENON – 2010-2012: Headlights |
50 | 15A H-LP RH LO – Near right light |
51 | 15A H-LP LH LO – Near left light |
52 | 10A HORN – Horn |
53 | 20A A/F – Engine electronics |
54 | 7.5A S-HORN – Anti-theft system siren |
55 | 7.5A DRL – Daytime Running Lights |
Relay
Appointment
- R1 – Starter relay
- R2 – Air conditioner compressor clutch relay
- R3 – IG1 relay
- R4 – Brush defroster relay
- R5 – AHC system relay
- R6 – Injection system main relay
- R7 –
- R8 – Fuel pump cut-off relay
- R9 – IG2 relay
- R10 – Fuel pump relay
- R11 – Rear window heater relay
- R12 – Electric fan motor relay.
Fuse box
A further fuse box is located at the front of the engine compartment.
Diagram
Decoding
- ECB MAIN 1 – 10A Brake system
- ECB MAIN 2 – 10A Brake system
- BATT FAN – 15A Battery cooling fan
- OIL PUMP – 10A Oil pump (hybrid system)
- A/C W/P – 10A Air conditioning and ventilation system.
In the luggage compartment, a high power fuse box is located on the battery plus terminal.
Purpose
- 180A MAIN – Main (all electrical components)
- 50A RR-B – Capacitor, DCDC-S
- 80A EPS – Electric power steering.
That’s all for now, and if you have anything to add – write in the comments.
can any tell me where the horn relay is for a 2015 lexus RX350? thank you