Fuse Box Diagrams Lexus RX450H (AL10; 2013-2015)

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In this article, you will find information about the fuses of the Lexus RX450H (AL10) (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 RX450H (AL10; 2013-2015)

Checking and Replacing Fuses in Lexus RX 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.
Before replacing the fuses, have the cause of electrical overload determined and repaired by your Lexus dealer.

Location of Fuse Boxes

Engine Compartment:
Push the tab in and lift the lid off. Lexus RX450H (AL10; 2013-2015): Engine compartment fuse box location

Removing the engine compartment covers:

Passenger Compartment:
Remove the lid.

Luggage Compartment:

Fuse Box Diagrams

2013-2015

Engine Compartment Fuse Box #1

List of fuses in the Engine Compartment Fuse Box #1

№	Fuse	A	Circuit
1	PCU	15A	Hybrid system
2	IGCT NO.2	10A	Hybrid system
3	IGCT NO.3	10A	Hybrid system
4	INV W/P	10A	Hybrid system

Engine Compartment Fuse Box #2

List of fuses in the Engine Compartment Fuse Box #2

№	Fuse	A	Circuit
1	RR DEF	50A	Rear window defogger
2	AIR SUS	50A	-
3	HEATER	50A	Air conditioning system
4	ABS NO.1	50A	Electronically controlled brake system
5	RDI FAN NO.1	40A	Electric cooling fans
6	RDI FAN NO.2	40A	Electric cooling fans
7	H-LP CLN	30A	Headlight cleaner
8	PBD	30A	Power back door
9	HV R/B NO.1	30A	PCU, IGCT NO.2, IGCT NO.3, INV W/P
10	PD	50A	A/F, H-LP RH HI, H-LP LH LO, H-LP RH LO, H-LP LH HI, HORN, S-HORN
11	ABS NO.2	50A	Electronically controlled brake system
12	HV R/B NO.2	80A	ABS MAIN NO.1, ABS MAIN NO.2, A/C W/P, BATT FAN, OIL PMP
13	DCDC	150A	IG1 MAIN, TOWING BATT, DEICER, TOWING, STOP, RDI FAN NO.1, ABS NO.1, RR DEF, AIR SUS, HEATER, RDI FAN 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/LALTB, FR FOG, FR DOOR, FL DOOR, RR DOOR, RL DOOR, PSB, P-SEAT LH, P-SEAT RH, TI&TE, AIR SUS, FUEL OPN, DR LOCK, OBD, RR FOG, S/ ROOF, 4WD, INVERTER, ECU-ACC, P/POINT, CIG, RADIO NO.2
14	AMP1	30A	Audio system
15	EFI MAIN	30A	Multiport fuel injection system/ sequential multiport fuel injection system, EFI NO.1, EFI NO.2, F/PMP
16	AMP2	30A	Audio system
17	IG2 MAIN	30A	IGN, GAUGE NO.2, ECU IG2
18	IP J/B	25A	Power door lock system
19	STR LOCK	20A	Starter system
20	RAD NO.3	15A	Meters and gauges, navigation system, audio system
21	HAZ	15A	Emergency flashers
22	ETCS	10A	Multiport fuel injection system/ sequential multiport fuel injection system
23	RAD NO.1	10A	Audio system, navigation system
24	AM2	7.5A	Starter system
25	ECU-B NO.2	7.5A	Air conditioning system, front passenger occupant classification system, audio system, vehicle dynamics integrated management, power windows, electric power steering system
26	MAYDAY/TEL	7.5A	MAYDAY/TEL
27	IMMOBI	7.5A	IMMOBI
28	ABS MAIN NO.3	15A	Brake system
29	DRL	7.5A	Daytime running light system
30	IGN	10A	Multiport fuel injection system/ sequential multiport fuel injection system
31	DOME	10A	Vanity mirror lights, luggage compartment lights, interior lights, personal lights, door courtesy lights, footwell lights, scuff lights
32	ECU-B NO.1	10A	Tilt and telescopic steering, multiplex communication system, meters and gauges, driving position memory, power seats, power back door, head-up display, starter system, outside rear view mirror, steering sensor, garage door opener
33	EFI NO.1	10A	Multiport fuel injection system/ sequential multiport fuel injection system
34	WIP-S	7.5A	Cruise control
35	ECU-IG1 NO. 4	10A	Air conditioning system, rear window defogger, electronically controlled brake system, electric cooling fans
36	BK/UP LP	7.5A	Back-up lights
37	ECU-IG1 NO.5	15A	Air conditioning system
38	ECU-IG1 NO.6	10A	Head light cleaner, cruise control, air conditioning system, Blind Spot Monitor
39	EFI NO.2	10A	Multiport fuel injection system/ sequential multiport fuel injection system
40	F/PMP	15A	Multiport fuel injection system/ sequential multiport fuel injection system
41	DEICER	25A	Windshield wipers and washer
42	STOP	7.5A	Vehicle Proximity Notification System, vehicle dynamics integrated management, stop lights, multiport fuel injection system/sequential multiport fuel injection system, shift lock control system, starter system, cruise control
43	TOWING BATT	20A	-
44	TOWING	30A	Trailer lights
45	FILTER	10A	-
46	IG1 MAIN	30A	ECU-IG1 NO.6, BK/UP LP, ECU-IG1 NO.5, ECU-IG1 NO.4
47	H-LP RH HI	15A	Right-hand headlight (high beam)
48	H-LP LH HI	15A	Left-hand headlight (high beam)
49	BIXENON	10A	-
50	H-LP RH LO	15A	Right-hand headlight (low beam)
51	H-LP LH LO	15A	Left-hand headlight (low beam)
52	HORN	10A	Horn
53	A/F	20A	Multiport fuel injection system/ sequential multiport fuel injection system
54	S-HORN	7.5A	S-HORN

Engine Compartment Fuse Box #3

List of fuses in the Engine Compartment Fuse Box #3

№	Fuse	A	Circuit
1	ABS MAIN NO.1	10A	Brake system
2	ABS MAIN NO.2	10A	Brake system
3	BATT FAN	15A	Battery cooling fan
4	OIL PMP	10A	Hybrid system
5	A/C W/P	10A	Air conditioning system

Instrument Panel Fuse Box

List of fuses in the instrument panel

№	Fuse	A	Circuit
1	P/POINT	15A	Power outlet
2	ECU-ACC	10A	Navigation system, air conditioning system, audio system, multiplex communication system, multi-information display, head-up display
3	CIG	15A	Power outlet
4	RADIO NO.2	7.5A	Audio system, navigation system
5	GAUGE NO.1	10A	Emergency flashers, navigation system, head-up display, air conditioning system, Vehicle Proximity Notification System, audio system
6	ECU-IG1 NO.3	10A	Outside rear view mirror, windshield wipers and washer, seat heaters, starter system, power outlet, moon roof, air conditioning system
7	ECU-IG1 NO.1	10A	Multiplex communication system, steering sensor, shift lock control system, tilt and telescopic steering, power back door, pre-collision system, vehicle dynamics integrated management, tire pressure warning system
8	S/ROOF	30A	Moon roof
9	FUEL OPN	7.5A	Fuel filler door opener
10	PSB	30A	Pre-collision seat belt
11	TI&TE	30A	Tilt and telescopic steering system
12	DR LOCK	10A	-
13	FR FOG	15A	Front fog lights
14	P-SEAT LH	30A	Power seat (left-side)
15	4WD	7.5A	AWD system
16	INVERTER	20A	Power outlet
17	RR FOG	7.5A	-
18	D/L ALT B	25A	Multiplex communication system, power door lock system, power back door
19	EPS	10A	Electric power steering system
20	ECU-IG1 NO.2	10A	Intuitive parking assist, pre-collision seat belt, capacitor
21	PANEL	10A	Switch illumination, navigation system, hybrid transmission system, audio system, multi-information display, air conditioning system, multiplex communication system
22	TAIL	10A	Parking lights, front side marker lights, tail lights, license plate lights, front fog lights, towing converter
23	AIR SUS	20A	-
24	P-SEAT RH	30A	Power seat (right-side)
25	OBD	7.5A	On-board diagnosis
26	FR DOOR	25A	Front power window (right-side), outside rear view mirror
27	RR DOOR	25A	Rear power window (right-side)
28	FL DOOR	25A	Front power window (left-side), outside rear view mirror
29	RL DOOR	25A	Rear power window (left-side)
30	FR WASH	25A	Windshield wipers and washer
31	RR WIP	15A	Windshield wipers and washer
32	RR WASH	20A	Windshield wipers and washer
33	FR WIP	30A	Windshield wipers and washer
34	ECU IG2	10A	Multiport fuel injection system/ sequential multiport fuel injection system, front passenger occupant classification system, SRS airbag system, stop lights, electronically controlled brake system, steering lock system, hybrid system
35	GAUGE NO.2	7.5A	Gauge and meters
36	RH S-HTR	15A	Seat heater (right-side)
37	LH S-HTR	15A	Seat heater (left-side)

Luggage Compartment Fuse Box #1

List of fuses in the Luggage Compartment Fuse Box #1

№	Fuse	A	Circuit
1	DCDC-S	7.5A	Hybrid system
2	CAPACITOR	10A	Hybrid system

Luggage Compartment Fuse Box #2

List of fuses in the Luggage Compartment Fuse Box #2

№	Fuse	A	Circuit
1	MAIN	180A	Main fuse (All electrical components)
2	RR-B	50A	CAPACITOR, DCDC-S
3	EPS	80A	Hybrid system