Jonathan Yarden May 05, 2021 · 5 min. read
In this article you will find a description of fuses and relays Lexus,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Year of production: 2015
Engine compartment (type A)
Fuse | Ampere rating [A] | Circuit protected | |
1 | LH J/B-B | 40 | Left-hand junction block |
2 | VGRS | 40 | VGRS |
3 | RH J/B-B | 40 | Right-hand junction block |
4 | P/I-B NO.2 | 80 | F/PMP, EFI MAIN, A/F HTR, EDU, IG2Â MAIN |
5 | ALT | 150 | RH J/B ALT, P/I ALT, LH J/B ALT, LUG J/B ALT |
6 | P/I ALT | 80 | RR DEF, TAIL, FR FOG, DEICER, PANEL, RR S/SHADE |
7 | RH J/B ALT | 80 | Right-hand junction block |
8 | MPX-B | 10 | Smart entry & start system, electric tilt and telescopic steering column, power seats, head-up display, front right-hand door ECU, gauges and meters, steering sensor, yaw rate and G sensor, overhead module, front left-hand door ECU, power trunk lid, RR CTRL SW, clock, body ECU, CAN gateway ECU |
9 | DOME | 7,5 | Personal lights, ornament lights, trunk light, footwell lights, door courtesy lights, vanity lights, rear door inside handle illuminations, power trunk opener and closer |
10 | EPS | 80 | EPS |
11 | ARS | 80 | Dynamic rear steering |
12 | HTR | 50 | Air conditioning system |
13 | ABS NO.1 | 40 | VDIM |
14 | LUG J/B ALT | 50 | Luggage compartment junction block |
15 | PTC NO.1 | 50 | PTC heater |
16 | PTC NO.2 | 50 | PTC heater |
17 | ABS NO.2 | 50 | VDM |
18 | ST | 30 | Starting system |
19 | H-LP LO | 30 | Headlights, H-LP RLY |
20 | D/C CUT | 30 | DOME, MPX-B |
21 | DCM | 7,5 | DCM |
22 | ECU-B | 7,5 | VGRS, smart access system with push-button start |
23 | ALT-S | 7,5 | Charging system |
24 | ETCS | 10 | Multiport fuel injection system/sequential multiport fuel injection system |
25 | HORN | 10 | Horn |
26 | R/B-B | 20 | EPS-B, ODS, TV |
27 | P/I-B NO.1 | 50 | Headlights, daytime running lights |
28 | EPB | 30 | Parking brake |
29 | LUG J/B-B | 40 | Luggage compartment junction block |
30 | FAN NO.1 | 80 | Electric cooling fans |
31 | LH J/B ALT | 60 | Left-hand junction block |
32 | H-LP CLN | 30 | No circuit |
33 | FAN NO.2 | 40 | Electric cooling fans |
34 | A/C COMP | 7,5 | Air conditioning system |
35 | FILTER | 10 | Condenser |
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Engine compartment (type B fuse box)
Fuse | Ampere rating [A] | Circuit protected | |
1 | IGN | 10 | Starting system |
2 | INJ | 10 | Multiport fuel injection system/sequential multiport fuel injection system |
3 | EFI NO.2 | 10 | Fuel system, exhaust system |
4 | IG2 MAIN | 20 | IGN, GAUGE, INJ, AIR BAG, IG2Â NO.1, LH-IG2 |
5 | EFI MAIN | 25 | Multiport fuel injection system/sequential multiport fuel injection system, EFI NO.2 |
6 | A/F | 15 | Air intake system |
7 | EDU | 20 | Multiport fuel injection system/sequential multiport fuel injection system |
8 | F/PMP | 25 | Multiport fuel injection system/sequential multiport fuel injection system |
9 | SPARE | 30 | Spare fuse |
10 | SPARE | 20 | Spare fuse |
11 | SPARE | 10 | Spare fuse |
12 | H-LP LH-LO | 20 | Left-hand headlight |
13 | H-LP RH-LO | 20 | Right-hand headlight |
14 | WASH-S | 5 | Driver support system |
15 | WIP-S | 7,5 | Windshield wipers, power management system |
16 | COMB SW | 5 | Windshield wipers |
17 | TV | 7,5 | Remote Touch screen |
18 | EPS-B | 5 | Electric power steering |
19 | ODS | 5 | Occupant classification system |
20 | IG2 NO.1 | 5 | Power management system, DCM, CANÂ gateway ECU |
21 | GAUGE | 5 | Gauges and meters |
22 | IG2 NO.2* | 5 | Multiport fuel injection system/sequential multiport fuel injection system |
*: 8-speed models |
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Driverâs side instrument panel
Fuse | Ampere rating [A] | Circuit protected | |
1 | STOP | 7,5 | Stop lights, high mounted stoplight |
2 | P/W-B | 5 | Power window master switch |
3 | P/SEAT1 F/L | 30 | Power seats |
4 | D/L NO.1 | 25 | Power door lock system |
5 | NV-IR | 10 | Lexus night view |
6 | FL S/HTR | 10 | Seat heaters/ventilators |
7 | WIPER | 30 | Windshield wipers |
8 | WIPER-IG | 5 | Windshield wipers |
9 | LH-IG | 10 | Seat belts, body ECU, AFS, overhead module, raindrop sensor, inside rear view mirror, lane camera sensor (LKA), head-up display, shift lock system, intuitive parking assist, front left-hand door ECU, driver monitor system, Remote Touch screen, electric tilt and telescopic steering column, power seats, moon roof, intuitive parking assist switch, Blind Spot Monitor buzzer |
10 | LH ECU-IG | 10 | VDIM, D-SW MODULE (Blind Spot Monitor, heated steering wheel), driver support system, AFS, EPB |
11 | DOOR FL | 30 | Outside rear view mirror defoggers, power window (front left-hand) |
12 | CAPACITOR (HV) | 10 | No circuit |
13 | STRG LOCK | 15 | Steering lock |
14 | D/L NO.2 | 25 | Power door lock system |
15 | DOOR RL | 30 | Power window (rear left-hand) |
16 | HAZ | 15 | Turn signal lights, emergency flashers |
17 | LH-IG2 | 10 | Multiport fuel injection system/sequential multiport fuel injection system, stop lights, smart entry & start system, steering lock system |
18 | LH J/B-B | 7,5 | Body ECU |
19 | S/ROOF | 20 | Moon roof |
20 | P/SEAT2 F/L | 25 | Power seats |
21 | TI & TE | 20 | Electric tilt and telescopic steering column |
22 | A/C | 7,5 | Air conditioning system |
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Passengerâs side instrument panel
Fuse | Ampere rating [A] | Circuit protected | |
1 | P/SEAT1 F/R | 30 | Power seats |
2 | FR P/OUTLET | 15 | Power outlet (front) |
3 | RR P/OUTLET | 15 | Power outlet (rear) |
4 | P/SEAT2 F/R | 25 | Power seats |
5 | AVS | 20 | AVS |
6 | STRG HTR | 15 | Heated steering wheel |
7 | WASH | 20 | Windshield washer |
8 | RH ECU-IG | 10 | Navigation system, VGRS, pre-collision seat belts, air conditioning system, Lexus night view |
9 | RH-IG | 10 | Tension reducer, seat heater/ventilator switches, AWD system, front right-hand door ECU, CAN gateway ECU, tire pressure warning system, power seats, driver monitor system |
10 | DOOR FR | 30 | Front right-hand door control system (outside rear view mirror defoggers, power window) |
11 | DOOR RR | 30 | Power window (rear right-hand) |
12 | RAD NO.2 | 30 | Audio system |
13 | AM2 | 7,5 | Smart access system with push-button start |
14 | MULTIMEDIA | 10 | Navigation system, Remote Touch |
15 | RAD NO.1 | 30 | Audio system |
16 | AIR BAG | 10 | SRS airbag system, occupant classification system |
17 | OBD | 7,5 | On-board diagnosis system |
18 | ACC | 7,5 | Body ECU, head-up display, RR CTRL, navigation system, transmission, Remote Touch, DCM, Remote Touch screen |
Trunk
Fuse | Ampere rating [A] | Circuit protected | |
1 | PSB | 30 | Pre-crash seat belts |
2 | PTL | 25 | Power trunk opener and closer |
3 | RR J/B-B | 10 | Smart access system with push-button start |
4 | RR S/HTR | 20 | Seat heaters (rear) |
5 | FR S/HTR | 10 | Seat heaters/ventilators (front) |
6 | RR FOG | 10 | No circuit |
7 | DC/DC-S (HV) | 7,5 | No circuit |
8 | BATT FAN (HV) | 20 | No circuit |
9 | SECURITY | 7,5 | SECURITY |
10 | ECU-B NO.3 | 7,5 | Parking brake |
11 | TRK OPN | 7,5 | Power trunk opener and closer |
12 | DCM (HV) | 7,5 | No circuit |
13 | AC INV (HV) | 20 | No circuit |
14 | RR-IG1 | 5 | Radar sensor, Blind Spot Monitor |
15 | RR ECU-IG | 10 | Power trunk opener and closer, parking brake, tension reducer (rear left-hand), RR CTRL SW, tire pressure warning system |
16 | EPS-IG | 5 | Electric power steering system |
17 | BACK UP | 7,5 | Back-up lights, Remote Touch screen |
WARNING:Â Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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