TOYOTA tC 2013 Owners Manual (in English)

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4-3. Do-it-yourself maintenance
4
Maintenance and care
tC_OM_OM21042U_(U)
■
Under the driver’s side instrument panel
FuseAmpereCircuit
1S/ROOF30 AMoon roof
2 FOG FR 15 A No circuit
3 FOG RR 7.5 A No circuit
4 AM1 5 A Starting system, body ECU
5 OBD 7.5 A On-board diagnosis system
6 D/L 20 A Power door lock system
7 DOOR FR 20 A Power windows
8 WASHER RR 7.5 A Rear window washer
9 WASHER FR 10 A Windshield washer
10 WIP RR 15 A Rear window wiper 11 WIP FR 30 A Windshield wipers
12 PWR OUTLET 15 A Power outlet
13 ECU-IG1 NO.1 5 A Electric power steering, shift lock
system, moon roof, tire pressure
warning system, charging system,
paddle shift switches

342 4-3. Do-it-yourself maintenance
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14 ACC5 ABody ECU, clock, outside rear view
mirror, shift lock system, audio sys-
tem
15 IG 5 ARear window defoggers, electric
cooling fan, multiport fuel injection
system/sequential multiport fuel
injection system
16 TAIL 10 AParking lights, tail lights, side
marker lights, license plate lights,
multiport fuel injection system/
sequential multiport fuel injection
system
17 IGN 7.5 AMultiport fuel injection system/
sequential multiport fuel injection
system, automatic transmission,
clock, smart key system, steering
lock system, SRS airbag system,
fuel pump, front passenger occu-
pant classification system
18 PANEL 5 AGauges and meters, air condition-
ing system, seat heater, VSC OFF
switch, shift lever illumination,
steering switch, clock, audio sys-
tem
19 S/HTR FL 10 A Seat heater (driver’s side)
20 MET 7.5 A Gauges and meters
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
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Maintenance and care
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■
Driver’s side instrument panel
21 S/HTR FR 10 ASeat heater (front passenger’s
side)
22 IG2 NO.2 7.5 A Starting system
23 BKUP LP 7.5 ABack-up light, automatic transmis-
sion, multiport fuel injection sys-
tem/sequential multiport fuel
injection system
24 ECU-IG1 NO.2 5 A Body ECU, ABS, VSC, steering
sensor, yaw rate & G sensor
25 ECU-IG1 NO.3 5 A Turn signal lights, emergency
flashers
26 HTR-IG 7.5 A Air conditioning system
FuseAmpereCircuit
1DOOR FL30 APower windows
FuseAmpereCircuit

344 4-3. Do-it-yourself maintenance
tC_OM_OM21042U_(U)
■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. 345)
● 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.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions. 
Failing to do so may cause damage, 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. 
This can cause extensive damage or even fire.
● 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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4-3. Do-it-yourself maintenance
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Maintenance and care
tC_OM_OM21042U_(U)
Light bulbs
You may replace the following bulbs yourself. The difficulty level of
replacement varies depending on the bulb. If necessary bulb
replacement seems difficult to perf orm, contact your Scion dealer.
For more information about replacing other light bulbs, contact your
Scion dealer.
■ Preparing for light bulb replacement
Check the wattage of the light bulb to be replaced. ( P. 432)
■ Front bulb locations
Front turn signal lights
Headlight low beam
Daytime running 
lights (Canada only)
and headlight 
high beam
Parking and front side
marker lights

346 4-3. Do-it-yourself maintenance
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■Rear bulb locations
Stop/tail and rear
side marker lights
Rear turn signal lights Back-up lightsLicense plate lights

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4-3. Do-it-yourself maintenance
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Maintenance and care
tC_OM_OM21042U_(U)
Replacing light bulbs
■ Headlight low beams
Turn the bulb base counterclock-
wise.
Unplug the bulb while depress-
ing the lock release.
STEP 1
ITO43P165
STEP 2

348 4-3. Do-it-yourself maintenance
tC_OM_OM21042U_(U)
■Daytime running lights (Canada only) and headlight high
beam
Turn the bulb base counterclock-
wise.
Unplug the bulb while depress-
ing the lock release.
STEP 1
ITO43P163
STEP 2

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Maintenance and care
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■
Front turn signal lights
Turn the bulb base counterclock-
wise.
Remove the light bulb.
STEP 1
STEP 2

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tC_OM_OM21042U_(U)
■Parking and front side marker lights
Turn the bulb base counterclock-
wise.
Remove the light bulb.
STEP 1
STEP 2