2009 TOYOTA YARIS SEDAN ECU

218 4-2. Maintenance
Vehicle interior
ItemsCheck points
Accelerator pedal • Moves smoothly (without uneven
pedal effort or catching)?
Automatic transmission “Park”
mechanism • Can the vehicle be hold securely
on an incline with the shift lever in
P?
Brake pedal • Moves smoothly?
• Does it have appropriate clear-
ance and correct amount of free
play?
Brakes • Not pull to one side when
applied?
• Loss of brake effectiveness?
• Spongy feeling brake pedal?
• Pedal almost touches floor?
Clutch pedal • Moves smoothly?
• Does it have correct amount of
free play?
Head restraints • Move smoothly and lock
securely?
Indicators/buzzers • Function properly?
Lights • Do all the lights come on?
• Headlights aimed correctly?
Parking brake • Moves smoothly?
• Can hold the vehicle securely on
an incline?
Seat belts • Does the seat belt system oper-
ate smoothly?
• Are the belts undamaged?
Seats • Do the seat controls operate
properly?

263
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse layout and amperage ratings
n Engine compartment (type A)
FuseAmpereCircuit
1 ALT 120 A 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
2 MAIN 60 A EFI, 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

265
4-3. Do-it-yourself maintenance
4
Maintenance and care
13 ECU-B
7.5 AEngine immobilizer system, day-
time running light system, front
passenger occupant classification
system, power windows, door lock
system, theft deterrent system,
meter and gauge
14 ALT-S 7.5 A Charging system
15 ETCS 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, electronic throttle control
system
16 HAZ 10 ATurn signal lights, emergency
flashers
17 H-LP RH/H-LP
LO RH 10 A Right-hand headlight
18 H-LP LH/H-LP
LO LH 10 A Left-hand headlight
19 EFI2 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
20 HTR SUB2 40 A Air conditioning system
21 EPS 50 A Electric power steering system
22 ABS1/VSC1 50 A Anti-lock brake system
23 HTR 40 A Air conditioning system
24 RDI 30 A Electric cooling fan
25 HTR SUB1 30 A Air conditioning system
26 H-LP CLN/PWR
HTR 30 A No circuit
27 AMT 50 A No circuit
FuseAmpereCircuit

268 4-3. Do-it-yourself maintenance
9 ID/UP/MIR HTR 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, outside rear view mirror
control, outside rear view mirror
heaters
10 IGN 7.5 A Multiport fuel injection system/
sequential multiport fuel injection
system, engine immobilizer sys-
tem, SRS airbag system, front pas-
senger occupant classification
system
11 MET 7.5 A Meter and gauge
12 WIP 25 A Windshield wiper and washer
13 RR WIP 15 A No circuit
14 WSH 15 A Windshield wiper and washer
15 ECU-IG 10 A Daytime running light system, anti-
lock brake system, electric power
steering system, power windows,
door lock system, theft deterrent
system, electric cooling fan, meter
and gauge
16 GAUGE 10 A Charging system, turn signal lights,
emergency flashers, back-up
lights, instrument panel light con-
trol, shift lock system, rear window
defogger, air conditioning system,
automatic transmission system
17 OBD2 7.5 A On-board diagnosis system
18 STOP 10 A Stop lights, high mounted stop-
light, multiport fuel injection sys-
tem/sequential multiport fuel
injection system, shift lock system,
anti-lock brake system
19 D/L 25 A Door lock system
FuseAmpereCircuit

279
4-3. Do-it-yourself maintenance
4
Maintenance and care
n
Installing the clips
CAUTION
nReplacing 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.
n To prevent damage or fire
Make sure bulbs are fully seated and locked.
NOTICE
lHalogen bulbs have pressurized gas inside and require special handling. \
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.
l 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.
Insert the clips.

5
When trouble arises
283
5-1. Essential information
If your vehicle needs to be towed
Before towingThe following may indicate a problem with your transmission. Contact
your Toyota dealer before towing.
l The engine is running, but the vehicle will not move.
l 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 attempted on hard, surfaced roads for
short distances at low speeds.
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.
Towing eyelet
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 a flat bed truck.
Use a safety chain system for all to wing, and abide by all state/pro-
vincial and local laws.
If towing from the front, the vehic le’s rear wheels and axles must be
in good condition. (→P. 286)
If they are damaged, use a towing dolly or flat bed truck.

5
When trouble arises
285
5-1. Essential information
Installing towing eyelet
Remove the eyelet cover using a
flathead screwdriver.
To protect the bodywork, place a
rag between the screwdriver and
the vehicle body, as shown in the
illustration.
Insert the towing eyelet into the
hole and tighten partially by
hand.
Tighten down the towing eyelet
securely using a wheel nut
wrench.
nLocation of the emer gency towing eyelet
→P. 303

286 5-1. Essential information
Towing with a sling-type truck
Towing with a wheel lift-type truck from the frontRelease the parking brake.
CAUTION
nInstalling 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
nTo prevent body damage
Do not tow with a sling-type truck, either from the front or rear.