TOYOTA iQ EV 2013 Owners Manual (in English)

3017-3. Do-it-yourself maintenance
7
Maintenance and care
Checking and replacing fuses
Turn the power switch off and confirm that the charging connector
has not been connected.
After a system failure, see “Fuse layout and amperage ratings” for
details about which fuse to check. ( P. 305)
Open the fuse box cover.
Motor compartment (type A fuse box)
Push the tab in and lift the lid
off.
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.
1
2
3

3027-3. Do-it-yourself maintenance
Motor compartment (type B fuse box)
1. Press the claw and remove the washer inlet from the bracket.
2. Push the tab in and lift the lid off.

3037-3. Do-it-yourself maintenance
7
Maintenance and care
Under the driver’s side instrument panel
Remove the lid.
Remove the fuse with the pull-
out tool.
Only type A fuse can be
removed using the pullout tool.
4

3047-3. Do-it-yourself maintenance
Check if the fuse is blown.Normal fuse
Blown fuse
Replace the blown fuse with a new fuse of an appropriate amperage rat-
ing. The amperage rating can be found on the fuse box lid.
5
1
2
Ty p e AType B
Ty p e C

3057-3. Do-it-yourself maintenance
7
Maintenance and care
■Motor compartment (type A fuse box)
Fuse layout and amperage ratings
FuseAmpereCircuit
1 D/C CUT30 A ECU-B NO.1, DOME
2IMMOBI7.5 ASmart key system
3TURN & HAZ10 ATurn signal lights, emergency flashers
4DCM5 ANavigation system
5ECU-B NO.27.5 APower management ECU, air condition-
ing system
6AM27.5 APower management ECU
7H-LP MAIN LO20 AHeadlight (low beam)
8ABS MTR NO.130 AElectric control brake system
9SPARE30 ASpare fuse
10SPARE20 ASpare fuse
11SPARE7.5 ASpare fuse
12IG CT30 AIGCT NO.2, PCU, IGCT NO.3, INV W/P
13ECU-B NO.37.5 AEV system
14PI30 ADCDC-S, HORN, BATT FAN, IG2, IG2
NO.2
15STRG LOCK20 ASteering lock system
16H-LP MAIN HI25 AHeadlight (high beam)

3067-3. Do-it-yourself maintenance
17DOME10 ANavigation system, interior light
18ECU-B NO.17.5 ASmart key system, main body ECU,
enhanced VSC
19RDI5 ARadiator fan
20DEFOGGER30 ARear window defogger
21BK/UP10 ABack-up lights
22ABS NO.27.5 AElectric control brake system
23RDI30 ARadiator fan
24HTR-B40 AAir conditioning system
25ABS NO.230 AElectric control brake system
26HORN10 AHorn
27BATT FAN15 ABattery cooling fan, power management
ECU
28DCDC-S5 AEV system
29IG210 APower management ECU, electric con-
trol brake system
30IG2 NO.25 ASmart key system, steering lock system,
meter, navigation system
FuseAmpereCircuit

3077-3. Do-it-yourself maintenance
7
Maintenance and care
■Motor compartment (type B fuse box)
FuseAmpereCircuit
1 PCU20 A EV system
2IGCT NO.210 AEV system
3IGCT NO.310 AEV system, power management ECU
4INV W/P15 AEV system
5HWD NO.150 AHeated windshield defroster
6PIMR10 AEV system, power management ECU
7ABS NO.120 AElectric control brake system
8HWD NO.250 AHeated windshield defroster
9H-LP RH HI10 ARight-hand headlight (high beam)
10H-LP LH HI10 ALeft-hand headlight (high beam)
11H-LP RH LO10 ARight-hand headlight (low beam)
12H-LP LH LO10 ALeft-hand headlight (low beam)

3087-3. Do-it-yourself maintenance
■Under the driver’s side instrument panel
FuseAmpereCircuit
1 ECU-IG NO.1 7.5 A Enhanced VSC, shift lock control system,
electric power steering, main body ECU,
tire pressure warning system, electric
control brake system, air conditioning
system
2GAUGE10 A
Rear window defogger, instrument panel
light control, emergency flashers, front
passenger’s seat belt reminder light, nav-
igation system
3HTR-IG10 AAir conditioning system, switch illumina-
tion
4WASHER RR10 ARear window washer
5WIPER RR10 ARear window wiper
6WIPER FR25 AFront windshield wiper
7WASHER FR10 AFront windshield washer
8OBD
7.5 AOn-board diagnosis system
9DOOR NO.220 APower windows
10D/L NO.115 APower door lock system, main body ECU
11DOOR NO.130 APower windows
12CIG15 APower outlet
13ACC5 AOutside rear view mirrors, navigation
system, main body ECU

3097-3. Do-it-yourself maintenance
7
Maintenance and care
14PANEL NO.15 ASwitch illumination, meter
15TA I L10 A
Parking lights, side marker lights, tail
lights, license plate lights, main body
ECU
16(FOG FR)15 ANo circuit
17AM17.5 ANo circuit
18STOP10 A
Power management ECU, stop lights,
high mounted stoplight, electric control
brake system
19(SEAT-HTR)15 ASeat heaters
FuseAmpereCircuit

3107-3. Do-it-yourself maintenance
■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. 311)
● If the replaced fuse blows again, have the vehicle inspected by your Scion
dealer.
■ If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure 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 that 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 fuses or fuse boxes.
■ Fuse box near the power control unit
Never check or replace the fuses as there are high voltage parts and wiring
near the fuse box.
Doing so may cause electric shock, resulting in death or serious injury.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your
Scion dealer as soon as possible.