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Lexus GS450h (2013) - fuse box diagram

avatar 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: 2013

Engine compartment

Lexus GS450h - fuse box - engine compartment

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 Air intake system, exhaust system
5 EFI MAIN 25 Multiport fuel injection system/sequential multiport fuel injection system, EFI NO.2
6 A/F 15 Air flow sensor
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 H-LP RH-LO 20 Right-hand headlight (low beam)*
10 H-LP LH-LO 20 Left-hand headlight (low beam)*
11 ABS MAIN 2 10 Brake system
12 ABS MAIN 1 10 Brake system
14 ECU-B 7,5 Smart access system with push-button start
15 INV W/P 10 Hybrid system
16 ETCS 10 Multiport fuel injection system/sequential multiport fuel injection system
17 EPS-B 10 Electric power steering system
19 HORN 10 Horn
20 ODS 5 Occupant classification system
21 TV 7,5 Remote Touch screen
23 ABS NO.2 30 ECB
24 P/I-B NO.1 50 H-LP HI RH, H-LP HI LH, DRL
26 LH J/B-B 40 Left-hand junction block
27 RH J/B-B 40 Right-hand junction block
28 VGRS 40 No circuit
29 OIL PMP 60 Oil pump
30 IGCT NO.5 7,5 Power management system, shift position sensor
31 WIP-S 7,5 Windshield wipers, driver support system
32 WASH-S 5 Windshield washer, driver support system
33 COMB SW 5 Windshield wipers
34 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
35 MPX-B 10 Body ECU, smart access system with pushbutton start, electric tilt and telescopic steering column, power seats, head-up display, front door ECU, gauges and meters, steering sensor, yaw rate and G sensor, overhead module, RR CTRL SW, power trunk opener and closer, clock, CAN gateway ECU
36 IGCT NO.4 10 Power control unit
37 IGCT NO.3 7,5 Hybrid battery (traction battery), DC/DC converter
38 IGCT NO.2 5 Hybrid system
39 IG2 NO.1 5 DCM, CAN gateway ECU
40 GAUGE 5 Gauges and meters
41 DC/DC 150 RH-J/B DC/DC, P/I DC/DC
43 RH J/B DC/DC 80 Right-hand junction block
44 LH J/B DC/DC 50 Left-hand junction block
45 H-LP CLN 30 Headlight cleaner
46 FAN NO.2 40 Electric cooling fans
47 LUG J/B DC/DC 80 Luggage compartment junction block
48 FAN NO.1 80 Electric cooling fans
49 PTC NO.1 50 PTC heater
50 PTC NO.2 50 PTC heater
51 HTR 50 Air conditioning system
52 ABS NO.1 30 ECB
53 ECU-B NO.2 7,5 No circuit
54 DEICER 25 Windshield wiper de-icer
55 ABS MAIN 3 10 Brake system
56 FILTER 10 Condenser
57 A/C W/P 7,5 Air conditioning system
58 SPARE 10 Spare fuse
59 SPARE 30 Spare fuse
60 SPARE 20 Spare fuse
*: Low beam and high beam are the same bulb. (vehicles with discharge headlights)

Driver’s side instrument panel

Lexus GS450h - fuse box - driver's 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, windshield wiper de-icer, intuitive parking assist switch, PTC heater, headlight cleaner
10 LH ECU-IG 10 VDIM, ECB, D-SW MODULE (Blind Spot Monitor, heated steering wheel), driver support system, AFS, EPB, air conditioning system
11 DOOR FL 30 Outside rear view mirror defoggers, power window (front left-hand)
12 CAPACITOR (HV) 10 Capacitor
13 STRG LOCK 15 Steering lock system
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 access system with push-button start, steering lock system, brake system, power management 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


Passenger’s side instrument panel

Lexus GS450h - fuse box -passenger's 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, pre-collision seat belts, air conditioning system, ECB, Lexus night view, yaw rate and G sensor
9 RH-IG 10 Tension reducer, seat heater/ventilator switches, front right-hand door ECU, CAN gateway ECU, tire pressure warning system, power seats
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 Power management system
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, hybrid transmission, Remote Touch, DCM, Remote Touch screen, clock



Lexus GS450h - fuse box - trunk

Fuse Ampere rating [A] Circuit protected
1 PSB 30 Pre-collision 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 DC/DC converter
8 BATT FAN (HV) 20 Hybrid battery (traction battery) cooling fan system
10 ECU-B NO.3 7,5 Parking brake
11 TRK OPN 7,5 Power trunk opener and closer
12 DCM (HV) 7,5 DCM
13 AC INV (HV) 20 Power outlet (120V AC)
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


The upper part of the 12-volt battery*

Lexus GS450h - fuse box - the upper part of the 12 volt battery

Fuse Ampere rating [A] Circuit protected
1 EPB 30 Parking brake
2 LUG-J/B BATT 40 Luggage compartment junction block
3 EPS 80 Electric power steering
4 ARS 80 No circuit
5 MAIN 220 Engine compartment junction block
*: When one or more of the fuses in this unit are blown, the unit needs to be replaced as a whole.

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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