How do you diagnose a bad fuse box?

Common Fusebox Problems To Look Out For Tripped Circuit Breakers. Signs: Frequent circuit breaker trips resulting in power outages in specific areas of your home. ... Flickering or Dimming Lights. ... Continuously Tripping Ground Fault Circuit Interrupters (GFCIs) ... Buzzing or Sizzling Sounds. ... Old or Outdated Fuseboxes. Aug 10, 2024

What are the main fuses in fuse box?

Your fuse box will have two sets of fuses. At the bottom will be 15-amp and 20-amp screw-in fuses with glass faces that are exposed and visible. These fuses will service branch light circuits and outlet circuits. At the top will be 30-amp or 40-amp cartridge main fuses for ovens, laundry rooms, or stoves .

Where is the fuse layout?

Engine fuse boxes are typically situated near the battery . In this vehicle, the battery is on the driver's side, and there is a fuse box right above it with a black plastic cover to protect the fuses. On the passenger side, there is also a battery, and the fuse box is located nearby.

How to tell if a fuse or relay is bad?

Testing Switch Pin Continuity The switch pins on a Normally Open (NO) circuit should have no continuity when not energized. Use a multimeter on the ohms setting to measure resistance between the switch pins . Any resistance indicates the pins are stuck closed, signaling a faulty relay.

What fuse would stop a car from starting?

One possible reason why your car won't start no crank is that the fuse for the ignition switch is blown . You can check the fuse by locating it in the fuse box and inspecting it for any damage or breakage.

What happens when a car fuse box goes bad?

The most likely blown car fuse symptoms are related to electrical functions not working at all. That's almost always one specific system affected, with acute signs like: Power door locks not cycling . One or more power windows not going up or down .

How to tell if a fuse is blown in a car?

No Response from Accessories : Accessories such as the cigarette lighter, GPS, or phone charger not working are tell-tale signs of a blown fuse. Visual Inspection: Removing the fuse and inspecting it can also help. A blown fuse usually has a broken wire or a burnt appearance inside.

Where can I find a fuse diagram for my car?

To locate the fuse specification chart for your vehicle or to learn how to change a fuse, refer to the "Fuses" section of your Owner's Manual .

What fuses are only on when the car is on?

A constant fuse, also known as a "hot at all times" fuse, is a fuse that maintains power even when the car is turned off. A switched fuse , on the other hand, only has power when the car is turned on.

How do I know if I have a blown fuse in my breaker box?

For a fuse box: If your electrical panel has fuses, check each fuse to see if the piece of metal inside has melted, or if the glass window at the top of the fuse has become discolored (usually purple or brown) . That's your home's blown fuse.

What happens when the fuse box goes out?

Your fuse box, or consumer unit, will either have fuses or trip switches. Modern electric circuits are fitted with a circuit breaker fuse system; if a fault develops, a switch is tripped and the circuit is broken. Older ones have fuse holders and when a fuse is blown it must be replaced or rewired .

Fuse Box Diagram Toyota ist (2024)

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In this article, we consider the second-generation Toyota ist / Toyota Urban Cruiser / Scion xD (XP110), produced from 2007 to 2016. Here you will find fuse box diagrams of Toyota ist (Toyota Urban Cruiser / Scion xD) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 and 2016, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Fuse Layout Toyota ist / Urban Cruiser / Scion xD 2008-2016

Cigar lighter (power outlet) fuse in the Toyota istis the fuse #8 “CIG” in the Instrument panel fuse box.

Table of Contents

Passenger Compartment Fuse Box

Fuse box location

The fuse boxt is located under the left side of the instrument panel, under the cover.

Left-hand drive vehicles

Right-hand drive vehicles

Fuse box diagram

Assignment of the fuses in the Passenger Compartment

NO.	Name	Amp	Circuit
1	TAIL	10	with DRL: Front position lights, tail lights, license plate lights, manual headlight leveling dial, multi-port fuel injection system/sequential multiport fuel injection system, instrument cluster lights
1	PANEL2	7.5	without DRL: Front position lights, tail lights, license plate lights, manual headlight leveling dial, multi-port fuel injection system/sequential multiport fuel injection system, instrument cluster lights
2	PANEL1	7.5	Switch illuminations, instrument cluster lights, steering switches, Stop & Start system, gauges and meters
3	A/C	7.5	Air conditioning system, rear window defogger, power heater
4	D DOOR	20	Power windows
5	RL DOOR	20	Power windows (rear left)
6	RR DOOR	20	Power windows (rear right)
7	-	-	-
8	CIG	15	Power outlet (cigarette lighter)
9	ACC	7.5	Power door lock system, outside rear view mirrors, audio system, clock
10	-	-	-
11	ID/UP / MIR HTR	10	Outside rear view mirror defoggers
12	-	-	-
13	AM1 No2	7.5	-
14	RR FOG	7.5	Rear fog lights
15	IGN	7.5	Multi-port fuel injection system/sequential multi-port fuel injection system, SRS airbag system, smart entry & start system, Stop & Start system
16	MET	7.5	Gauges and meters
17	P S-HTR	15	Seat heater
18	D S-HTR	15	Seat heater
19	WIP	20	Windshield wipers
20	RR WIP	15	Rear window wiper
21	WSH	15	Windshield washers, rear window washer
22	ECU-IG	10	Daytime running light system, ABS, electric power steering, power windows, power door lock system, VSC, Active Torque Control 4WD system, smart entry & start system, Stop & Start system, electric cooling fan
23	GAUGE	10	Charging system, turn signal lights, emergency flashers, back-up lights, air conditioning system, rear window defogger, gauges and meters
24	OBD2	7.5	On-board diagnosis system
25	STOP	10	Stop lights, high mounted stoplight, multi-port fuel injection system/sequential multi-port fuel injection system, ABS, VSC, shift lock system
26	-	-	-
27	D/L	25	Power door lock system, double locking system
28	FR FOG	15	Front fog lights
29	4WD	7.5	Active Torque Control 4WD system
30	TAIL	10	without DRL: Front position lights, tail lights, license plate lights, manual headlight leveling dial, multi-port fuel injection system/sequential multiport fuel injection system, instrument cluster lights
31	AM1	25	Multi-port fuel injection system/sequential multi-port fuel injection system, "ACC", "CIG" fuses

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Front side

Left-hand drive vehicles

Right-hand drive vehicles

№	Name	Amp	Circuit
1	PWR	30	Power windows
2	DEF	30	Rear window defogger
3	-	-	-

Relay
R1			Ignition (IG1)
R2			Heater (HTR)
R3			LHD: Flasher

Additional Fuse Box

№	Name	Amp	Circuit
1	AM2 NO.2	7.5	Back door opener, charging, door lock control, double locking, engine control, engine immobiliser system, entry & start system, ignition, illumination, interior light, light reminder, power window, seat belt warning, starting, steering lock, stop & start system, tail light, theft deterrent, wireless door lock control
1	WIP-S	7.5	1ND-TV: Power management
2	AM2 NO.2	7.5	Back door opener, charging, door lock control, double locking, engine control, engine immobiliser system, entry & start system, ignition, illumination, interior light, light reminder, power window, seat belt warning, starting, steering lock, stop & start system, tail light, theft deterrent, wireless door lock control
2	WIP-S	7.5	1ND-TV: Power management

Fuse Box in the Engine Compartment

Fuse box location

The fuse box is located in the engine compartment (left-side)

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Fuse box diagram

Assignment of the fuses in the Engine Compartment

№	Name	Amp	Circuit
1	-	-	-
2	AM2	15	Starting system, multi-port fuel injection system/sequential multiport fuel injection system, Stop & Start system, smart entry & start system
3	HORN	10	Horn
4	EFI	20	1NR-FE, 2ZR-FE: Multiport fuel injection system/sequential multiport fuel injection system
4	ECD	30	1ND-TV: Multiport fuel injection system/sequential multiport fuel injection system
5	-	30	Spare fuse
6	-	10	Spare fuse
7	-	15	Spare fuse
8	-	-	-
9	-	-	-
10	-	-	-
11	-	-	-
12	ABS2/VSC2	30	Anti-lock brake system, vehicle stability control system
13	H-LP MAIN	30	with DRL: "H-LP LH/H-LP LO LH", "H-LP LH/H-LP LO LH", "H-LP HI LH", "H-LP HI RH" fuses
14	ST	30	Starting system
15	S-LOCK	20	Smart entry & start system
16	DOME	15	Interior light, personal lights, luggage compartment light, smart entry & start system, wireless remote control, audio system
17	ECU-B	7.5	Daytime running light system, power windows, power door lock system, smart entry & start system, gauges and meters, air conditioning system, VSC, Active Torque Control 4YVD system, Stop & Start system
18	ALT-S	7.5	1NR-FE, 2ZR-FE: Charging system
18	F/PMP	30	1ND-TV: Multiport fuel injection system/sequential multiport fuel injection system
19	ETCS	10	Multiport fuel injection system/sequential multiport fuel injection system
20	HAZ	10	Turn signal lights, emergency flashers
21	AMT	50	without Stop & Start System: Multi-mode manual transmission
21	BBC	40	Stop & Start system
22	H-LP RH / H-LP LO RH	10	Right-hand headlight
23	H-LP LH / H-LP LO LH	10	Left-hand headlight
24	EFI2	10	1NR-FE, 2ZR-FE: Multiport fuel injection system/sequential multiport fuel injection system
24	ECD2	10	1ND-TV: Multiport fuel injection system/sequential multiport fuel injection system
25	ECD3	7.5	1ND-TV: Multiport fuel injection system/sequential multiport fuel injection system
26	HTR SUB2	40	435W Type: PTC heater
26	HTR SUB1	50	600W Type: PTC heater
27	EPS	50	Electric power steering
28	ABS1/VSC1	50	Anti-lock brake system, vehicle stability control system
29	HTR	40	Air conditioning system
30	RDI	30	Electric cooling fan
31	HTR SUB1	30	435W Type: PTC heater
31	HTR SUB2	30	600W Type: PTC heater
32	H-LP CLN / PWR HTR	30	Power heater, headlight cleaner
32	HTR SUB3	30	600W Type: PTC heater

Relay
R1			Starter (ST)
R2			Electric cooling fan (FAN No.2)
R3			PTC heater (HTR SUB1) 1ND-TV + 4WD: (ECD No.2)
			1NR-FE - Gasoline 1.3L 2ZR-FE - Gasoline 1.8L 1ND-TV - Diesel 1.4L

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Relay Box #1 (without DRL)

№	Relay
R1	PTC heater (HTR SUB3 / TRK)
R2	PTC heater (HTR SUB2)
R3	Headlight / Multi-mode manual transmission / PTC heater (H-LP/AMT/HTR SUB1)

Relay Box No.2 (with DRL)

№	Name	Amp	Circuit
1	ATF PMP	10	-
2	HTR W/P	10	-
3	H-LP HI RH	10	Headlight
4	H-LP HI LH	10	Headlight

Relay
R1			Dimmer (DIM)
R2			-
R3			-
R4			Headlight (H-LP)
R5			PTC heater (HTR SUB3)
R6			PTC heater (HTR SUB2)
R7			PTC heater (HTR SUB1)
R8			-

Fusible Link Block

Gasoline

Diesel

№	Name	Amp	Circuit
1	GLOW DC/DC	80	1ND-TV: Multiport fuel injection system/ sequential multiport fuel injection system
2	MAIN	60	"EFT, "HORN", "AM2", "ALT-S", "DOME", "ST", "ECU-B", "ETCS", "HAZ", "H-LP LH/H-LP LO LH" and "H-LP RH/H-LP LO RH" fuses
3	ALT	120	Charging system, "HTR SUB2", "EPS", "ABS1/VSC1", "HTR", "ABS2/VSC2", "HTR SUB1", "RDI", "DEF", "FR FOG", "OBD2", "D/L", "POWER", "RR DOOR", "RL DOOR", "STOP" and "AM1" fuses

Learn more:

How to check the fuses?

How to replace a blown fuse?

Why do car fuses blow?

Types of automotive fuses

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Fuse Box Diagram Toyota ist (2024)

Fuse Layout Toyota ist / Urban Cruiser / Scion xD 2008-2016

Passenger Compartment Fuse Box

Fuse box location

Fuse box diagram

Front side

Additional Fuse Box

Fuse Box in the Engine Compartment

Fuse box location

Fuse box diagram

Relay Box #1 (without DRL)

Relay Box No.2 (with DRL)

Fusible Link Block

Learn more:

FAQs

How do you diagnose a bad fuse box? ›

What happens when the fuse box goes out? ›

References