Toyota Prius Fuse Box Locations and Diagrams (2022-2025)

The fifth-generation Toyota Prius (Model Code: XW60), available from 2022 to the present, represents a bold redesign of Toyota’s iconic hybrid. This generation introduces a sportier aesthetic, advanced hybrid powertrain technology, and a suite of modern driver-assistance features, all while maintaining the fuel efficiency and eco-conscious engineering the Prius is known for.

In this article, you will find fuse box diagrams for the Toyota Prius, covering model years 2022, 2023, 2024, and 2025. These diagrams are essential for understanding the vehicle’s electrical system, whether you’re troubleshooting issues or performing maintenance.

What’s Included:

Fuse Box Diagrams – Clear visuals illustrating the layout and designation of each fuse and relay.
Fuse Panel Locations – Guidance on where to find the fuse boxes in the cabin and engine compartment.
Fuse Assignments – A detailed breakdown of each fuse’s function, helping you identify and address electrical problems accurately.

Whether you’re replacing a blown fuse or equipping your Prius with aftermarket components, this guide is your go-to resource for managing the Toyota Prius (2022–2025) electrical system with confidence and precision.

What’s Included

Engine Compartment

Fuse box location

The fuse box is located in the engine compartment, on the right-hand side when you’re standing in front of the vehicle. To access the fuses, simply lift the cover of the fuse box.

Fuse box diagram

Assignment of the fuses in the Engine Compartment

Type	No.	Short-Code	Description
10A	1	PCU NO.2 [HEV]	Power Control Unit inverter channel 2 (hybrid)
10A	2	PCU NO.1 [HEV]	Power Control Unit inverter channel 1 (hybrid)
5A	3	SBW‑IGCT	Shift‑By‑Wire system / IGCT control
10A	4	PM‑IGCT	Power management control to IGCT relay
10A	5	IGCT NO.2	IGCT relay circuit channel 2 for inverter control
10A	6	EFI NO.5	Electronic fuel injection circuit #5
10A	7	EFI NO.3	Electronic fuel injection circuit #3
15A	11	WASHER	Windshield washer pump
10A	12	IGN	Ignition main system
5A	13	ECU‑IGP NO.1	Engine Control Unit ignition-primary #1
10A	14	ECU‑IGP NO.3	Engine Control Unit ignition-primary #3
10A	16	EFI NO.2	Electronic fuel injection circuit #2
10A	17	EFI NO.4	Electronic fuel injection circuit #4
10A	18	BATT FAN [HEV]	Hybrid battery cooling fan
5A	19	INV W/PMP [HEV]	Inverter coolant pump (hybrid)
10A	19	PCU NO.2 [PHEV]	PHEV inverter channel 2
10A	21	H‑LP RH	Right-hand low‑beam headlight
25A	24	EFI‑MAIN NO.2 [M20A‑FXS]	Main EFI circuit for hybrid engine
10A	24	EFI‑MAIN NO.2 [2ZR‑FXE]	Main EFI circuit for PHEV engine
10A	26	INV W/PMP NO.2	Second inverter coolant pump
15A	27	ECU‑B NO.5	Engine Control Unit backup circuit #5
30A	28	EFI‑MAIN NO.1	Main EFI power #1
10A	30	E‑LATCH RL	Rear-left electronic door latch
10A	31	H‑LP LH	Left-hand low‑beam headlight
10A	33	STRG HTR	Steering wheel heater
10A	34	BATT‑S NO.2	Secondary battery sensing/power #2
5A	35	BATT‑S	Primary battery sensing/power
30A	36	EFI‑MAIN NO.3	Main EFI power #3
10A	37	ECU‑B	Engine Control Unit backup circuit
10A	38	DMC	Data/Telematics control module
10A	39	E‑LATCH RR	Rear-right electronic door latch
25A	40	IGP‑MAIN	Ignition primary main circuit
5A	41	EFI NO.1	Electronic fuel injection circuit #1
30A	45	D/C CUT	DC‑to‑DC converter main fuse
20A	46	D‑INJ	Direct fuel-injector control
30A	47	WIPER	Windshield wiper motor
20A	48	VVT	Variable valve timing solenoid
10A	49	HORN	Vehicle horn
30A	50	2ND BATT	Secondary 12 V battery charging circuit
10A	51	S‑HORN	Security system horn
20A	52	P‑CON MTR	Parking pawl control motor
15A	53	DEICER	Windshield de‑icer
15A	54	PLUG LOCK	EV charging port lock actuator
15A	55	S/HTR RR	Rear seat heater
10A	56	AMD2 CHG	Auxiliary motor charger circuit
7.5A	58	IG‑B	Ignition backup circuit
10A	59	P‑CON MAIN	Parking pawl control main circuit
5A	60	PWC	Power window control
30A	67	IGCT‑MAIN NO.2	Main IGCT inverter relay channel 2
40A	69	HTR	HVAC high-power heater blower
30A	70	FAN NO.1	Cooling fan #1
30A	71	FAN NO.2 [HEV]	Hybrid cooling fan #2
40A	71	AMD2 [PHEV]	Auxiliary motor drive #2 high-current (PHEV)
130A	72	DC/DC	DC‑DC converter fuse block
30A	73	IGCT‑MAIN NO.1	Main IGCT inverter relay channel 1
40A	74	ABS MTR NO.1	ABS pump motor #1
80A	75	EPS	Electric power steering system
80A	76	INP STD NO.3	Inverter pump/stator driver #3
50A	77	ABS NO.1	ABS system control #1
40A	78	ABS NO.2	ABS system control #2
30A	79	ABS MAIN	Main ABS system power
60A	87	INP STD NO.1	Inverter pump/stator driver #1
80A	88	INP STD NO.2	Inverter pump/stator driver #2
100A	89	FAN NO.1	Cooling fan #1 fuse block
Relay	R1	H‑LP LH	Left-hand low‑beam headlight relay
Relay	R2	EFI‑MAIN NO.1	Main EFI power relay #1
Relay	R3	D‑INJ	Direct injector relay
Relay	R4	IGCT‑MAIN NO.1 [HEV]	Primary inverter relay channel 1 (hybrid)
Relay	R5	VVT [M20A‑FXS]	Variable valve timing relay (M20A‑FXS)
Relay	R5	C/OPN [2ZR‑FXE]	Charge‑open relay for PHEV engine
Relay	R6	WIPER	Windshield wiper relay
Relay	R7	HORN	Horn relay
Relay	R8	IGCT‑MAIN NO.1 [PHEV]	Primary inverter relay channel 1 (PHEV)
Relay	R8	IGCT‑MAIN NO.2 [HEV]	Inverter relay channel 2 (hybrid)
Relay	R9	S‑HORN	Security horn relay
Relay	R10	IGP	Ignition primary relay
Relay	R11	EFI‑MAIN NO.2	Main EFI power relay #2
Relay	R12	INV W/PMP [HEV]	Inverter coolant pump relay (hybrid)
Relay	R12	IGCT‑MAIN NO.2 [PHEV]	Inverter relay channel 2 (PHEV)
Relay	R13	H‑LP RH	Right-hand low‑beam headlight relay
Relay	R14	FAN NO.3 [HEV]	Cooling fan #3 relay (hybrid)
Relay	R14	DEICER [PHEV]	Windshield de‑icer relay (PHEV)
Relay	R15	EFI‑MAIN NO.3	Main EFI power relay #3
Relay	R16	DEICER [HEV]	Windshield de‑icer relay (hybrid)
Relay	R17	FAN NO.1 [HEV]	Cooling fan #1 relay (hybrid)
Relay	R17	IG‑B [PHEV]	Ignition backup relay (PHEV)
Relay	R18	FAN NO.2 [HEV]	Cooling fan #2 relay (hybrid)
Relay	R18	A/C MG/V [PHEV]	A/C magnetic valve relay (PHEV)

Passenger Compartment

Fuse box location

The fuse box is located beneath the instrument panel on the left side. To access it, remove the cover.

Fuse box diagram

Assignment of the fuses in the Passenger Compartment

Type	No.	Short-Code	Description
5A	2	+BA NO.2	Secondary battery positive feed #2 (backup 12 V supply)
20A	3	DOOR R/R	Rear right door lock/power module
20A	4	DOOR R/L	Rear left door lock/power module
10A	5	ECU‑B NO.3	Engine Control Unit backup circuit #3
10A	6	DOOR BACK	Back door (hatch) unlock/lock control
7.5A	7	OBD	On‑board diagnostics (OBD‑II data link)
20A	8	DOOR F/R	Front right door lock/power module
20A	9	DOOR F/L	Front left door lock/power module
15A	10	D/L	Power door lock system
10A	11	ECU‑DCC NO.2	Engine Control Unit circuit DCC #2
5A	12	ECU‑DCC NO.1	Engine Control Unit circuit DCC #1
20A	13	RADIO	Radio and audio system main power
10A	14	HAZ	Hazard warning lights
10A	15	FUEL OPN	Fuel lid opener actuator
7.5A	16	TAIL	Tail & parking light circuit
3A	17	PANEL	Instrument panel lighting
10A	18	ECU‑IGR NO.2	Engine Control Unit ignition relay #2
3A	20	EPS‑IGR	Electric Power Steering ignition supply
10A	21	ECU‑IGR NO.1	Engine Control Unit ignition relay #1
10A	22	A/BAG‑IGR	Airbag system ignition supply
10A	23	ECU‑IGR NO.3	Engine Control Unit ignition relay #3
5A	24	ECU‑B NO.1	Engine Control Unit backup circuit #1
10A	25	ECU‑B NO.2	Engine Control Unit backup circuit #2
10A	26	STOP	Brake (stop) light circuit
5A	27	ECU‑ACC	Engine Control Unit accessory circuit
7.5A	29	AM2	Starter system main supply
5A	30	DCM	Data Communication Module (telematics/wifi)
30A	35	AMP NO.1	Audio amplifier/main power for sound system
10A	36	ECU‑IGR NO.4	Engine Control Unit ignition relay #4
5A	37	METER‑IGR	Instrument cluster (gauges) ignition supply
15A	38	P/OUTLET NO.1	Cigar lighter / 12 V power outlet
5A	39	DOME	Dome and interior lights
7.5A	41	USB NO.1	Front USB charger port #1
10A	42	USB NO.2	Front USB charger port #2
10A	43	S/HTR F/L	Front left seat heater
10A	44	S/HTR F/R	Front right seat heater

FAQ

Where is the cigar lighter (power outlet) fuse located in the Toyota Prius (5th generation)?

It’s fuse #38 “P/OUTLET NO.1” (15A) in the Passenger Compartment fuse box, under the instrument panel.