2012 TOYOTA PRIUS C ECU

408 4-3. Do-it-yourself maintenance
Under the driver’s side instrument panel
FuseAmpereCircuit
1 TAIL 10 A Parking lights, side marker lights,
tail lights, license plate lights, front
fog lights, gauge and meters
2 PANEL 5 A Instrument panel lights
3 DOOR R/R 20 A Rear power window (right side)
4 DOOR P 20 A Front power window (right side)
5 ECU-IG NO.1 5 A Rear window defogger, tire pres-
sure warning system, main body
ECU, brake system, vehicle stabil-
ity control system, power door lock
system, smart key system
6 ECU-IG NO.2 5 A Electric power steering system
7HTR-IG 7.5 A Air conditioning system, PTC
heater
8 GAUGE 10 A Back-up lights, audio system, shift
lock control system, moon roof,
vehicle control and operation data
recording, vehicle proximity notifi-
cation system
9 WASHER 15 A Windshield wipers and washer
10 WIPER 25 A Windshield wipers and washer
11 WIPER RR 15 A Windshield wipers and washer
12 P/W 30 A Power window

409
4-3. Do-it-yourself maintenance
4
Maintenance and care
13 DOOR R/L 20 A Rear pow
er window (left side)
14 DOOR D 20 A Front power window (left side)
15 CIG 15 A Power outlet
16 ACC 5 A Main body ECU, audio system, out-
side rear view mirrors, shift lock
control system
17 D/L 25 A Power door lock system
18 OBD 7.5 A On-board diagnosis
19 STOP 7.5 A Starter system, shift lock control
system, vehicle proximity notifica-
tion system, brake system, stop
lights, high mounted stoplight
20 AM1 7.5 A Starter system
21 FOG FR 15 A Front fog lights
22 S/ROOF 25 A Moon roof
23 S/HTR 15 A Seat heaters, air conditioning sys-
tem
■ 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. 411)
● If the replaced fuse blows again, have the vehicle inspected by your
Toyota dealer.
■ If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
FuseAmpereCircuit

413
4-3. Do-it-yourself maintenance
4
Maintenance and care
Unplug the connector while
pushing the lock release.
High beam and daytime run-
ning lights
Low beam
Replace the light bulb, and install
the bulb base.
Align the 3 tabs on the light bulb
with the mounting, and insert.
Turn and secure the bulb base.
Shake the bulb base gently to
check that it is not loose, turn the
headlights and daytime running
lights and headlight low beams on
once and visually confirm that no
light is leaking through the mount-
ing.
■ Front fog lights (if equipped)
Turn the steering wheel in the
opposite direction of the light to
be replaced.
Turn the steering wheel to a point
that allows your hand to easily fit
between the tire and fender liner.
STEP2
STEP3
STEP4
STEP1

415
4-3. Do-it-yourself maintenance
4
Maintenance and care
Turn and secure the bulb. Install
the connector.
Shake the bulb base gently to
check that it is not loose, turn the
front fog light on once and visu-
ally confirm that no light is leaking
through the mounting.
When installing the fender liner, install by conducting
with the directions reversed.
■ Parking lights
Unplug the connector while
pushing the lock release.
STEP6
STEP5STEP7STEP5STEP7STEP2
STEP1

422 4-3. Do-it-yourself maintenance
CAUTION
■Replacing light bulbs
●Turn off the lights. Do not attempt to replace the bulb immediately after
turning off the lights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the light bulb with bare hands. Hold the
bulb by the plastic or metal portion.
If the bulb is scratched or dropped, it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Failure 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.

5
When trouble arises
425
5-1. Essential information
If your vehicle needs to be towed
Before towingThe following may indicate a problem with your hybrid transmission.
Contact your Toyota dealer before towing.
● The hybrid system is operating but the vehicle will not move.
● The vehicle makes an abnormal sound.
Emergency towing
If a tow truck is not available in
an emergency, your vehicle may
be temporarily towed using a
cable or chain secured to the
emergency towing eyelet. This
should only be attempted on
hard surfaced roads for short
distances at under 18 mph (30
km/h).
A driver must be in the vehicle to
steer and operate the brakes.
The vehicle’s wheels, drive train,
axles, steering and brakes must
be in good condition.
If towing is necessary, we recommend having your vehicle towed by
your Toyota dealer or a commerci al towing service, using a lift-type
truck or flatbed truck.
Use a safety chain system for all to wing, and abide by all state/pro-
vincial and local laws.

426 5-1. Essential information
Installing towing eyeletPush the eyelet cover and then
open it.
Insert the towing eyelet into the
hole and tighten partially by
hand.
Tighten down the towing eyelet
securely using a wheel nut
wrench.
STEP1
STEP2
STEP3

5
When trouble arises
429
5-1. Essential information
CAUTION
■
Caution while towing
●Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelet and the cables or chains. Always
be cautious of the surroundings and other vehicles while towing.
● Do not turn the engine switch off (vehicles without a smart key system) or
the “POWER” switch off (vehicles with a smart key system).
This may lead to accidents because the steering wheel will be locked and
you will not be able to operate the steering wheel.
● If the hybrid system is off, the power assist for the brakes and steering will
not function, making steering and braking more difficult.
■ Installing towing eyelet to the vehicle
Make sure that towing eyelet is installed securely.
If not securely installed, towing eyelet may come loose during towing. This
may lead to accidents that cause serious injury or even death.
NOTICE
■To prevent causing serious damage to the transmission when towing
using a wheel-lift type truck
Never tow this vehicle from the rear with the front wheels on the ground.
■ To prevent damage to the vehicle when towing using a wheel-lift type
truck
When raising the vehicle, ensure adequate ground clearance for towing at
the opposite end of the raised vehicle. Without adequate clearance, the
vehicle could be damaged while being towed.
■ To prevent body damage when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
■ To prevent causing serious damage to the transmission in emergency
towing
Never tow a vehicle from the rear with four wheels on the ground. This may
cause serious damage to the transmission.