2014 TOYOTA IQ fuse

248 4-3. Do-it-yourself maintenance
Fuse layout and amperage ratings■ Engine compartment (type A)
FuseAmpereCircuit
1 ALT 120 A Charging system, RDI, ABS NO.1,
ABS NO.2, HTR-B, ACC, CIG,
GAUGE, ECU-IG NO.1, HTR-IG,
WIPER WASHER, AM1, DOOR
NO.1, STOP, DOOR NO.2, OBD,
FR FOG, DEF, TAIL, EPS, PTC
NO.1, PTC NO.2, PTC NO.3, D/L
NO.1, PANEL NO.1
2 MAIN 80 A EFI MAIN, EFI NO.1, HORN, AM2
NO.1, DOME, ECU-B NO.2,
TURN&HAZ, H-LP MAIN, H-LP
MAIN HI, ECU-B NO.1, D/C CUT,
ETCS, IG2, IGN, ALT-S

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4
Maintenance and care
■
Engine compartment (type B)
FuseAmpereCircuit
1 D/C CUT 30 A ECU-B NO.1, DOME
2 IMMOBI 7.5 A IMMOBI
3 TURN & HAZ 10 A Turn signal lights, emergency
flashers
4 ETCS 10 A Electronic throttle control system
5 ECU-B NO.2 5 A Meter, power windows, air condi-
tioning system
6 H-LP MAIN 20 A H-LP RH LO, H-LP LH LO
7 SPARE 30 A Spare fuse
8 SPARE 20 A Spare fuse
9 SPARE 5 A Spare fuse
10 AM2 NO.1 30 A Starting system 11 H-LP MAIN HI 25 A H-LP RH HI, H-LP LH HI
12 DOME 15 A Interior light, audio system
13 ECU-B NO.1 7.5 A Main body ECU, power door lock
system
14 MIR HTR 7.5 A Outside rear view mirror defoggers

250 4-3. Do-it-yourself maintenance
15 DEFOGGER 30 A Rear window defogger
16 EPS 50 A Electric power steering
17 RDI 30 A RDI FAN
18 ABS NO.1 50 A Vehicle stability control system
19 HTR-B 40 A HTR, BLR
20 ABS NO.2 30 A Vehicle stability control system
21 HORN 10 A Horn
22 EFI-MAIN 20 AMultiport fuel injection system/
sequential multiport fuel injection
system, EFI NO.1, Fuel pump
23 ALT-S 7.5 A Charging system
24 IGN 15 A Injection, igniter
25 IG2 10 A SRS airbag system, meter
26 EFI NO.1 10 A Multiport fuel injection system/
sequential multiport fuel injection
system
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Engine compartment (type C)
FuseAmpereCircuit
1 PTC NO.1 50 A PTC heater
2 PTC NO.3 30 A PTC heater
3 PTC NO.2 30 A PTC heater
4 H-LP RH HI 10 A Headlight (high beam)
5 H-LP LH HI 10 A Headlight (high beam)
6 H-LP RH LO 10 A Right-hand headlight (low beam)
7 H-LP LH LO 10 A Left-hand headlight (low beam)

252 4-3. Do-it-yourself maintenance
■Under the driver’s side instrument panel
FuseAmpereCircuit
1 ECU-IG NO.1 7.5 A Vehicle stability control system,
shift lock control system, electric
power steering, automatic head-
light system, main body ECU, tire
pressure warning system
2 GAUGE 10 A Electric cooling fan, charging sys-
tem, emergency flashers, front
passenger’s seat belt reminder
light, back-up lights, multiport fuel
injection system/sequential multi-
port fuel injection system, wind-
shield wiper ECU
3 HTR-IG 10 A Air conditioning system, rear win-
dow defogger
4 WASHER RR 10 A Windshield washer
5 WIPER RR 10 A Rear window wiper
6 WIPER FR 25 A Windshield wipers
7 WASHER FR 10 A Windshield washer
8 OBD 7.5 A On-board diagnosis system
9 DOOR NO.2 20 A Power windows

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Maintenance and care
10 D/L NO.1
15 APower door lock system, main
body ECU
11 DOOR NO.1 30 A Power windows
12 CIG 15 A Power outlet
13 ACC 5 AOutside rear view mirrors, audio
system, shift lock control system,
main body ECU
14
PANEL NO.15 A Meter
15 TAIL 10 A Parking lights, tail lights, license
plate lights, multiport fuel injection
system/sequential multiport fuel
injection system, instrument clus-
ter, windshield wiper ECU
16 (FOG FR) 15 A No circuit
17 AM1 7.5 A ACC, starting system
18 STOP 10 A Vehicle stability control system,
power management ECU, shift
lock control system, stop lights,
multiport fuel injection system/
sequential multiport fuel injection
system
19 (SEAT-HTR) 15 A No circuit
■ After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb
may need replacement. ( P. 255)
● If the replaced fuse blows again, have the vehicle inspected by your
Scion dealer.
■ If there is an overload in the circuits
The fuses are designed to blow, protecting the wiring harness from damage.
FuseAmpereCircuit

254 4-3. Do-it-yourself maintenance
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage to the vehicle, and possibly a fire or
injury.
●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 Scion fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
● Do not modify the fuse or the fuse box.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Scion
dealer as soon as possible.

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Maintenance and care
■
Lights other than the above
If any of the lights listed below has burned out, have it replaced by
your Scion dealer.
● Side turn signal lights
● High mounted stoplight
■When replacing the left side headlight
Be sure to install the fuse cover properly.
■ Condensation build-up on th e inside of the lens
Temporary condensation build-up on the inside of the headlight lens does
not indicate a malfunction.
Contact your Scion dealer for more information in the following situations:
● Large drops of water are built up on the inside of the lens.
● Water has built up inside the headlight.
■ LED high mounted stoplight
The high mounted stoplight consists of a number of LEDs. If any of the LEDs
burn out, take your vehicle to your Scion dealer to have the light replaced.
CAUTION
■Replacing light bulbs
●Turn off the headlights. Do not attempt to replace the bulb immediately
after turning off the headlights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the light bulb with bare hands. When i\
t is
unavoidable to hold the glass portion, use and hold with a clean dry cloth
to avoid getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Failing to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
■ To prevent damage or fire
Make sure bulbs are fully seated and locked.