Toyota Prius | 2000-2003 | Fuse Box Diagrams and Locations

The first-generation Toyota Prius (NHW11), produced from 2000 to 2003 following a facelift, was the pioneering mass-produced hybrid vehicle that helped redefine fuel efficiency and eco-friendly driving. This innovative model combined a gasoline engine with an electric motor in a compact sedan form, setting the stage for Toyota’s hybrid success worldwide.

In this article, you will find fuse box diagrams for the Toyota Prius, covering model years 2000, 2001, 2002, and 2003. These diagrams are essential for anyone looking to understand, locate, or troubleshoot the vehicle’s electrical system.

What’s Included:

Fuse Box Diagrams – Accurate visual guides to help identify each fuse and relay.
Fuse Panel Locations – Step-by-step details on where to locate the fuse panels in your Prius.
Fuse Assignments – Full descriptions of each fuse and relay function, aiding in diagnostics and component replacement.

Whether you’re replacing a blown fuse or diagnosing an electrical issue, this reference ensures you can maintain and repair your Toyota Prius (2000–2003) with confidence and precision.

What’s Included

Fuse box locations overview

Passenger Compartment

Fuse box location

The fuse box is located on the left side of the instrument panel, behind the cover.

The location of the fuses in the passenger compartment: Toyota Prius (2000-2003)

Fuse box diagram

Assignment of the fuses and relay in the Passenger Compartment

Fuse Data

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№	Name	Amp	Circuit
1	PANEL	5	Audio system, ashtray light, headlight beam level control system, emergency flasher
2	GAUGE	10	Gauge and meter, emergency flasher, rear window defogger, service reminder indicator and warning buzzers, back-up light, power window system, air conditioning system
3	HTR	10	Air conditioning system
4	TAIL	7.5	Parking lights, tail lights, license plate lights, side marker lights
5	ECU-IG	5	Air conditioning system, anti-lock brake system, electric power steering, daytime running light system
6	STOP	15	Stop lights, high mounted stoplights, anti-lock brake system
7	ACC	10	Anti-lock brake system warning light, clock, audio system, multi-information display, shift lock system
8	WIPER	30	Windshield wiper
9	ECU-B	7.5	Air conditioning system, daytime running light system, electric power steering system, hybrid vehicle immobiliser system
10	CIG	15	Power outlet
11	WASHER	15	Washer
12	DOOR	30	Power door lock system
13	SRS ACC	10	SRS airbags, seat belt pretensioners
14	–	–	–
15	OBD II	7.5	On-board diagnosis system
16	–	–	–
17	PWR1	20	Power window system
18	AM1	5	“ACC”, “CIG”, “SRS ACC”, “WASHER”, “HTR”, “WIPER”, “ECU-IG” and “GAUGE” fuses
19	DEF	40	Rear window defogger
20	POWER	30	Power windows

Relay
R1			Ignition (IG1)
R2			Tail lights (TAIL)
R3			Accessory relay (ACC)
R4			–
R5			Power relay (power windows)
R6			Rear window defogger (DEF)

Fusible Link Block

Fuse Data

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№	Name	Amp	Circuit
1	DC/DC-S	5	Inverter and converter
2	MAIN	120	“DC/DC”, “BATT FAN”, “HORN”, “TURN-HAZ”, “DOME”, “THRO”, “EFT, “AM2”, “ABS NO.2”, “ABS NO.3”, “DC/DC-S”, “HV”, “HEAD” fuses
3	–	–	–

Engine Compartment

Fuse box location

Fuse box diagram

Assignment of the fuses and relay in the Engine Compartment

Fuse Data

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№	Name	Amp	Circuit
1	–	–	–
2	–	–	–
3	–	–	–
4	CDS FAN	30	Air conditioning system
5	HORN	10	Horn
6	–	–	–
7	HEAD HI (RH)	10	with Daytime running light: Right-hand headlight (high beam)
8	AM2	15	Starting system, multiport fuel injection system/sequential multiport fuel injection system, hybrid vehicle immobiliser system
9	THRO	15	Electronic throttle control system
10	HEAD (RH)	10	Right-hand headlight
10	HEAD LO (RH)	10	with Daytime running light: Right-hand headlight (low beam)
11	HEAD HI (LH)	10	with Daytime running light: Left-hand headlight (high beam)
12	BATT FAN	10	Battery cooling fan
13	ABS NO.3	20	Hydraulic brake booster
14	HV	20	Hybrid system
15	EFI	15	Multiport fuel injection system/sequential multiport fuel injection system
16	HEAD (LH)	10	Left-hand headlight
16	HEAD LO (LH)	10	with Daytime running light: Left-hand headlight (low beam)
17	DOME	15	Audio system, multi-information display, interior light, trunk light, power window system, wireless remote control system
18	TURN-HAZ	10	Turn signal lights, Emergency flasher
19	DC/DC	100	ACC relay, IG1 relay, TAIL relay, “ABS NO.4”, “HTR1”, “HTR2”, “ABS NO.1”, “HTR3”, “EMPS”, “CDS FAN”, “RDI”, “HTR”, OBD II”, “ECU-B”, “STOP”, “PWR1”, “POWER”, “DOOR”, “DEF”, “AM1” fuses
20	HEAD	30	with Daytime running light: Daytime running light system
20	SHORT PIN	–	without Daytime running light: Short pin
21	–	–	–
22	HTR	50	Air conditioning system
23	RDI	30	Electric cooling fan
24	ABS NO.2	30	Hydraulic brake booster

Relay
R1			with Daytime running light: Dimmer (DIM) without Daytime running light: Short pin
R2			Headlight (HEAD)
R3			Fuel pump (Circuit opening relay (C/OPN))
R4			Heater (HTR)
R5			with Daytime running light: Short pin
R6			Engine control unit (EFI)
R7			Air conditioner compressor clutch (CLR MG)
R8			Electric Cooling Fan (FAN NO.1)
R9			Electric Cooling Fan (FAN NO.2)
R10			Electric Cooling Fan (FAN NO.3)
R11			Ignition (IG2)
R12			Horn

Additional Fuse Box

Engine Compartment Additional Fuse Box

Fuse Data

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№	Name	Amp	Circuit
1	ABS NO.4	10	Anti-lock brake system
2	HTR NO.1	30	Air conditioning system
3	–	–	–
4	HTR NO.2	30	Air conditioning system
5	–	–	–
6	DRL	7.5	Daytime running light system
7	HTR3	50	Air conditioning system
8	EM PS	50	Electric power steering
9	ABS NO.1	40	Anti-lock brake system

Relay
R1			Daytime running light (DRL)
R2			Anti-lock brake system (ABS SOL)
R3			(A/C W/P)
R4			Electric power steering (EMPS)
R5			Air conditioning system (HTR3)
R6			–
R7			Air conditioning system (HTR1)
R8			Air conditioning system (HTR2)

Relay Box

Fuse Data

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№	Relay
R1	(HYDRO MTR NO.1)
R2	(HYDRO MTR NO.2)
R3	–
R4	(IGCT)

FAQ

Which fuse protects the cigar lighter (power outlet) in the Toyota Prius?

In the Toyota Prius, the 12 V cigar lighter (power outlet) is safeguarded by Fuse #10, labeled “CIG”, located in the Instrument Panel Fuse Box.
If the cigarette lighter stops working, check Fuse #10 first and replace it with the same amperage rating specified in your owner’s manual.