Fuse Box Diagrams Lexus GS450H (L10; 2013-2015)

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In this article, you will find information about the fuses of the Lexus GS450h (L10) (models 2013, 2014, and 2015), including diagrams of the fuse boxes, a list of fuses, their designation, and the location of the fuse blocks within the vehicle.

Lexus GS450H (L10; 2013-2015)

Checking and Replacing Fuses in Lexus GS 450h

The fuses are designed to blow before the entire wiring harness is damaged. If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary. Replace it with one of an appropriate amperage rating. The amperage rating can be found on the fuse box lid.

If the new fuse immediately blows out, there is a problem with the electrical system. Have your Lexus dealer correct it as soon as possible.

Caution!

Never use a fuse of a higher amperage rating than indicated, or use any other object in place of a fuse.
Always use a genuine Lexus fuse or equivalent. Never replace a fuse with a wire, even as a temporary fix. This can cause extensive damage or even fire.
Do not modify fuses or the fuse box.

Location of Fuse Boxes

Passenger Compartment:
Remove the lid. Lexus GS450H (2013-2015): Passenger compartment fuse panel location

Engine Compartment:

Remove the engine compartment cover and remove all of the clips.
Push the tabs on either side to detach the lock and lift the lid off while pulling the lock plate. When installing the lid, check that the lock plate and the tabs on either side are connected correctly.

Removing the engine compartment cover:

Luggage Compartment:

Fuse Box #1: Push the tab in and lift the lid off; Remove the lid.
Fuse Box #2 (The upper part of the 12-volt battery): Pull the strap upwards to lift up the 12-volt battery cover (When one or more of the fuses in this unit are blown, the unit needs to be replaced as a whole).

Fuse Box Diagrams

2013

Passenger Compartment Fuse Box #1

List of fuses in the driver’s side instrument panel (2013)

№	Fuse	A	Circuit
1	STOP	7.5A	Stop lights, high mounted stoplight
2	P/W-B	5A	Power window master switch
3	P/SEAT1 F/L	30A	Power seats
4	D/L NO.1	25A	Power door lock system
5	NV-IR	10A	Lexus night view
6	FL S/HTR	10A	Seat heaters/ventilators
7	WIPER	30A	Windshield wipers
8	WIPER-IG	5A	Windshield wipers
9	LH-IG	10A	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	10A	VDIM, ECB, D-SW MODULE (Blind Spot Monitor, heated steering wheel), driver support system, AFS, EPB, air conditioning system
11	DOOR FL	30A	Outside rear view mirror defoggers, power window (front left-hand)
12	CAPACITOR (HV)	10A	Capacitor
13	STRG LOCK	15A	Steering lock system
14	D/L NO.2	25A	Power door lock system
15	DOOR RL	30A	Power window (rear left-hand)
16	HAZ	15A	Turn signal lights, emergency flashers
17	LH-IG2	10A	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	7.5A	Body ECU
19	S/ROOF	20A	Moon roof
20	P/SEAT2 F/L	25A	Power seats
21	TI&TE	20A	Electric tilt and telescopic steering column
22	A/C	7.5A	Air conditioning system

Passenger Compartment Fuse Box #2

List of fuses in the passenger’s side instrument panel (2013)

№	Fuse	A	Circuit
1	P/SEAT1 F/R	30A	Power seats
2	FR P/OUTLET	15A	Power outlet (front)
3	RR P/OUTLET	15A	Power outlet (rear)
4	P/SEAT2 F/R	25A	Power seats
5	AVS	20A	AVS
6	STRG HTR	15A	Heated steering wheel
7	WASH	20A	Windshield washer
8	RH ECU-IG	10A	Navigation system, pre-collision seat belts, air conditioning system, ECB, Lexus night view, yaw rate and G sensor
9	RH-IG	10A	Tension reducer, seat heater/ventilator switches, front right-hand door ECU, CAN gateway ECU, tire pressure warning system, power seats
10	DOOR FR	30A	Front right-hand door control system (outside rear view mirror defoggers, power window)
11	DOOR RR	30A	Power window (rear right-hand)
12	RAD NO.2	30A	Audio system
13	AM2	7.5A	Power management system
14	MULTIMEDIA	10A	Navigation system, Remote Touch
15	RAD NO.1	30A	Audio system
16	AIR BAG	10A	SRS airbag system, occupant classification system
17	OBD	7.5A	On-board diagnosis system
18	ACC	7.5A	Body ECU, head-up display, RR CTRL, navigation system, hybrid transmission, Remote Touch, DCM, Remote Touch screen, clock

Engine Compartment Fuse Box

List of fuses in the engine compartment (2013)

№	Fuse	A	Circuit
1	IGN	10A	Starting system
2	INJ	10A	Multiport fuel injection system/sequential multiport fuel injection system
3	EFI NO.2	10A	Air intake system, exhaust system
4	IG2 MAIN	20A	IGN, GAUGE, INJ, AIR BAG, IG2 NO.1, LH-IG2
5	EFI MAIN	25A	Multiport fuel injection system/sequential multiport fuel injection system, EFI NO.2
6	A/F	15A	Airflow sensor
7	EDU	20A	Multiport fuel injection system/sequential multiport fuel injection system
8	F/PMP	25A	Multiport fuel injection system/sequential multiport fuel injection system
9	H-LP RH-LO	20A	Right-hand headlight (low beam)*
10	H-LP LH-LO	20A	Left-hand headlight (low beam)*
11	ABS MAIN 2	10A	Brake system
12	ABS MAIN1	10A	Brake system
13	IGCT NO.1	30A	IGCT NO.2, IGCT NO.3, IGCT NO.4, IGCT NO.5
14	ECU-B	7.5A	Smart access system with push-button start
15	INV W/P	10A	Hybrid system
16	ETCS	10A	Multiport fuel injection system/sequential multiport fuel injection system
17	EPS-B	10A	Electric power steering system
18	D/C CUT	30A	DOME, MPX-B
19	HORN	10A	Horn
20	ODS	5A	Occupant classification system
21	TV	7.5A	Remote Touch screen
22	P/l-B NO.2	80A	IG2 MAIN, EFI MAIN, EDU, F/PMP, A/F
23	ABS NO.2	30A	ECB
24	P/l-B NO.1	50A	H-LP HI RH, H-LP HI LH, DRL
25	H-LP LO	30A	H-LP LO RH, H-LP LO LH
26	LH J/B-B	40A	Left-hand junction block
27	RH J/B-B	40A	Right-hand junction block
28	VGRS	40A	No circuit
29	OIL PMP	60A	Oil pump
30	IGCT NO.5	7.5A	Power management system, shift position sensor
31	WIP-S	7.5A	Windshield wipers, driver support system
32	WASH-S	5A	Windshield washer, driver support system
33	COMB SW	5A	Windshield wipers
34	DOME	7.5A	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	10A	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	10A	Power control unit
37	IGCT NO.3	7.5A	Hybrid battery (traction battery), DC/DC converter
38	IGCT NO.2	5A	Hybrid system
39	IG2 NO.1	5A	DCM, CAN gateway ECU
40	GAUGE	5A	Gauges and meters
41	DC/DC	150A	RH-J/B DC/DC, P/l DC/DC
42	P/l DC/DC	100A	RR S/SHADE, DEFOG, FOG, TAIL, PANEL
43	RH J/B DC/DC	80A	Right-hand junction block
44	LH J/B DC/DC	50A	Left-hand junction block
45	H-LP CLN	30A	Headlight cleaner
46	FAN NO.2	40A	Electric cooling fans
47	LUG J/B DC/DC	80A	Luggage compartment junction block
48	FAN NO.1	80A	Electric cooling fans
49	PTC NO.1	50A	PTC heater
50	PTC NO.2	50A	PTC heater
51	HTR	50A	Air conditioning system
52	ABS NO.1	30A	ECB
53	ECU-B NO.2	7.5A	No circuit
54	DEICER	25A	Windshield wiper de-icer
55	ABS MAIN 3	10A	Brake system
56	FILTER	10A	Condenser
57	A/C W/P	7.5A	Air conditioning system
58	SPARE	10A	Spare fuse
59	SPARE	30A	Spare fuse
60	SPARE	20A	Spare fuse
*: Low beam and high beam are the same bulb, (vehicles with discharge headlights)

Luggage Compartment Fuse Boxes

List of fuses in the trunk (2013)

№	Fuse	A	Circuit
1	PSB	30A	Pre-collision seat belts
2	PTL	25A	Power trunk opener and closer
3	RR J/B-B	10A	Smart access system with push-button start
4	RR S/HTR	20A	Seat heaters (rear)
5	FR S/HTR	10A	Seat heaters/ventilators (front)
6	RR FOG	10A	No circuit
7	DC/DC-S (HV)	7.5A	DC/DC converter
8	BATT FAN (HV)	20A	Hybrid battery (traction battery) cooling fan system
9	SECURITY	7.5A	SECURITY
10	ECU-B NO.3	7.5A	Parking brake
11	TRK OPN	7.5A	Power trunk opener and closer
12	DCM(HV)	7.5A	DCM
13	ACI NV(HV)	20A	Power outlet (120V AC)
14	RR-IG1	5A	Radar sensor, Blind Spot Monitor
15	RR ECU-IG	10A	Power trunk opener and closer, parking brake, tension reducer (rear left-hand), RR CTRL SW, tire pressure warning system
16	EPS-IG	5A	Electric power steering system
17	BACK UP	7.5A	Back-up lights

List of fuses on the 12-volt battery (2013)

№	Fuse	A	Circuit
1	EPB	30A	Parking brake
2	LUG-J/B BATT	40A	Luggage compartment junction block
3	EPS	80A	Electric power steering
4	ARS	80A	No circuit
5	MAIN	220A	Engine compartment junction block

2014