Toyota Prius+ Fuse Box Locations and Diagrams (2012-2018)

The Toyota Prius+ / Prius V / Prius α (Model Code: XW40) is a hybrid compact MPV produced from 2012 to 2018, offering a spacious alternative to the traditional Prius with three-row seating and exceptional fuel efficiency. Designed for eco-conscious families, it combines Toyota’s Hybrid Synergy Drive with the practicality of a small minivan or wagon.

In this article, you will find fuse box diagrams for the Toyota Prius V, covering model years 2012, 2013, 2014, 2015, 2016, 2017, and 2018. These diagrams are crucial for identifying, locating, and understanding the function of each fuse and relay in the vehicle’s electrical system.

What’s Included:

Fuse Box Diagrams – Clear and detailed layouts to help you identify the location and function of fuses and relays.
Fuse Panel Locations – Guidance on where to find the fuse boxes inside the vehicle.
Fuse Assignments – Descriptions of each fuse and relay to support diagnostics, maintenance, and repairs.

Whether you’re troubleshooting an electrical issue or replacing a blown fuse, this guide ensures that your Toyota Prius V (2012–2018) remains reliable, safe, and road-ready.

What’s Included

Overview

Left-hand drive vehicles

Right-hand drive vehicles

Passenger Compartment

Fuse box location

The fuse box is located under the instrument panel (left side), under the lid.
Left-hand drive vehicles: open the lid.
Right-hand drive vehicles: remove the cover and open the lid.

The location of the fuses in the passenger compartment: Toyota Prius V / Prius+ / Prius Alpha (2012-2017)

Fuse box diagram

Assignment of the fuses in the Passenger Compartment

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№	Name	Amp	Circuit
1	CIG	15A	Power outlets
2	ECU-ACC	10A	Multiplex communication system, outside rear view mirrors, driver support system, audio system, navigation system
3	PWR OUTLET	15A	Power outlets
4	–	–	–
5	SEAT HTR FR	10A	Seat heater
6	–	–	–
7	SEAT HTR FL	10A	Seat heater
8	DOOR NO.1	25A	Power door lock system
9	–	–	–
10	PSB	30A	Pre-Collision System
11	PWR SEAT FR	30A	Power seat
12	DBL LOCK	25A	RHD: Double locking
13	FR FOG	15A	Before Nov. 2014: Front fog lights
13	FR FOG	7.5A	From Nov. 2014: Front fog lights
14	PWR SEAT FL	30A	Power seat
15	OBD	7.5A	On-board diagnosis system
16	–	–	–
17	RR FOG	7.5A	Rear fog lights
18	–	–	–
19	STOP	10A	Stop lights, high mounted stoplight, brake system, driver support system, vehicle proximity notification system
20	–	–	–
21	P FR DOOR	25A	Power windows
22	D FR DOOR	25A	Power windows
23	–	–	–
24	DOOR RR	25A	Power windows
25	DOOR RL	25A	Power windows
26	S/ROOF	30A	Panoramic roof shades
27	ECU-IG NO.1	10A	Electric cooling fans, multiplex communication system
28	ECU-IG NO.2	10A	Driver support system, Pre-Collision System, inside rear view mirror, garage door opener, yaw rate & G sensor, brake system, electric power steering, navigation system, panoramic roof shades, tire pressure warning system, seat belt pretensioners, audio system, emergency flashers, turn signal lights, windshield wipers, headlight cleaner
29	–	–	–
30	GAUGE	10A	Headlight leveling system, gauges and meters, emergency flashers
31	A/C	10A	Air conditioning system
32	WASHER	15A	Windshield washer
33	RR WIP	20A	Rear window wiper and washer
34	WIP	30A	Windshield wipers
35	–	–	–
36	MET	7.5A	Gauges and meters
37	IGN	10A	Brake system, driver support system, multiport fuel injection system/sequential multiport fuel injection system, SRS airbag system, occupant detection system (ECU and sensors), smart key system
38	PANEL	10A	Air conditioning system, emergency flashers, seat heaters, transmission, P position switch, navigation system, advanced parking guidance system, headlight cleaner, seat belt reminder light, headlight leveling system, glove box light, clock, audio system
39	TAIL	10A	Headlight leveling system, parking lights, tail lights, license plate lights, front fog lights, side marker lights

Additional Fuse Box

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№	Name	Amp	Circuit
1	WIP NO.4	10A	RHD: Cruise control, dynamic radar cruise control, engine control
2	WIP NO.4	10A	LHD: Cruise control, dynamic radar cruise control, engine control

Fusible Link Block

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№	Name	Amp	Circuit
1	MAIN	140A	“DC/DC”, “DRL”, “AMP”, “AMP NO.1”, “AMP NO.2”, “H-LP HI MAIN”, “EPS”, “ABS MTR 1”, “ABS MTR 2”, “DC/DC-S”, “P/I 2”, “ECU-B2”, “AM2”, “ECU-B3”, “TURN & HAZ”, “P CON MAIN”, “SHORT PIN”, “ABS MAIN NO.1”, “P-CON MTR”, “MAYDAY”, “ETCS”, “IGCT”, “P/I 1” fuses

Engine Compartment

Fuse box location

Fuse box diagram

A

Until Oct. 2012

Since Oct. 2012

Assignment of the fuses and relay in the Engine Compartment

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№	Name	Amp	Circuit
1	ABS MAIN NO.2	7.5A	Anti-lock brake system
2	ENG W/P	30A	Cooling system
3	S-HORN	10A	Theft deterrent
4	AMP	30A	From Nov. 2014: Audio system
5	ABS MAIN NO.1	20A	Anti-lock brake system
6	ETCS	10A	Multiport fuel injection system/sequential multiport fuel injection system
7	TURN & HAZ	10A	Turn signal lights
8	ECU-B3	10A	Air conditioning system
9	–	–	–
10	ECU-B2	7.5A	Smart key system
11	AM2	7.5A	Power management system
12	P CON MAIN	7.5A	P position control system, transmission
13	DC/DC-S	5A	Inverter and converter
14	IGCT	30A	“PCU”, “IGCT NO.2”, “IGCT NO.3” fuses
15	AMP	30A	Before Nov. 2014: Audio system
15	HORN	10A	From Nov. 2014: Horn
16	SHORT PIN	–	“ECU-B”, “RAD NO.1”, “DOME” fuses
17	DRL	7.5A	Daytime running lights
18	HV BATT	10A	Battery voltage sensor
19	H-LP HI MAIN	20A	Headlight switch, daytime running light system, “H-LP HI RH”, “H-LP HI LH” fuses
20	IGCT NO.3	10A	Cooling system
21	EFI NO.2	10A	Multiport fuel injection system/sequential multiport fuel injection system
22	H-LP RH HI	10A	Right-hand headlight (high beam)
23	H-LP LH HI	10A	Left-hand headlight (high beam)
24	ECU-B	7.5A	Smart key system, multiplex communication system, personal lights, gauges and meters, occupant detection system (ECU and sensors)
25	DOME	10A	Door courtesy lights, personal lights, interior lights, front foot lights, vanity lights, inside rear view mirror, garage door opener, overhead console
26	RAD NO.1	15A	Audio system, navigation system
27	MIR HTR	10A	Outside rear view mirror defoggers
28	IGCT NO.2	10A	Hybrid system, P position control system, inverter and converter
29	PCU	10A	Inverter and converter
30	IG2	20A	Multiport fuel injection system/sequential multiport fuel injection system, “MET 1 , “IGN” fuses, hybrid system
31	BATT FAN	10A	Battery cooling fan
32	EFI MAIN	20A	Multiport fuel injection system/sequential multiport fuel injection system, cooling system, “EFI NO.2” fuse
33	–	–	–
34	H-LP CLN	30A	Headlight cleaner
35	–	–	–
36	CDS	30A	Electric cooling fans
37	RDI	30A	Electric cooling fans
38	HTR	50A	Air conditioning system
39	P-CON MTR	30A	P position control system, transmission
40	EPS	60A	Electric power steering
41	P/I 1	60A	“IG2”, “EFI MAIN”, “BATT FAN” fuses
42	ABS MTR 2	30A	Anti-lock brake system
43	ABS MTR 2	30A	Anti-lock brake system
44	P/I 2	40A	Horn, right-hand headlight (low beam), left-hand head light (low beam), back-up lights
45	–	–	–
46	–	–	–

Relay
R1			Cooling system (ENG W/P)
R2			Electric cooling fan (FAN NO.3)
R3			Shift control actuator (P-CON MTR)
R4			Electric cooling fan (FAN NO.1)
R5			Before Nov. 2014: Theft deterrent (S-HORN) From Nov. 2014: Daytime running lights (DRL)
R6			Dimmer (DIM)
R7			Power management control (IGCT)
R8			Electric cooling fan (FAN NO.2)
R9			Before Nov. 2014: Daytime running lights (DRL) From Nov. 2014: Horn
R10			From Oct. 2012: –

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№	Name	Amp	Circuit
1	DC/DC	125A	Integration relay, “TAIL” relay, “P/POINT relay”, “ACC” relay, “IG1 NO.1” relay, “IG1 NO.2” relay, “IG1 NO.3” relay, “HTR”, “RDI”, “CDS”, “S-HORN”, “ENG W/P”, “ABS MAIN NO.2”, “H-LP CLN”, “FR FOG”, “PWR SEAT FL”, “OBD”, “STOP”, “RR FOG”, “DBL LOCK”, “PWR SEAT FR”, “DOOR NO.1”, “PSB”, “D FR DOOR”, “P FR DOOR”, “DOOR RL”, “DOOR RR”, “S/ROOF” fuses

FAQ

Which fuses control the cigar lighter and power outlet in the Toyota Prius V / Prius+ / Prius α?

In the Toyota Prius V, Prius+, or Prius α, the interior cigar lighter and accessory power outlets are protected by two fuses located in the Instrument Panel Fuse Box:

Fuse #1 “CIG” – dedicated to the cigar lighter (cigarette socket).
Fuse #3 “PWR OUTLET” – protects the 12 V auxiliary power outlet.

If the lighter or outlet stops working, inspect these fuses first and replace any blown fuse with the same amperage specified in your owner’s manual.