ECU TOYOTA YARIS 2017 3.G Workshop Manual

2816-3. Do-it-yourself maintenance
6
Maintenance and care
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 on once and visu-
ally confirm that no light is leak-
ing through the mounting.
■
Front fog lights (if equipped) Remove the screws.
Remove the grommet.
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2836-3. Do-it-yourself maintenance
6
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
visually confirm that no light is
leaking through the mounting.
When installing the fender liner, install by starting and the
directions reversed.
■Front side marker lightsTurn the bulb base counter-
clockwise.
Remove the light bulb
When installing, reve rse the steps listed.
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2866-3. Do-it-yourself maintenance
Turn and secure the bulb
base.Stop/tail and rear side
marker lights
Rear turn signal light
Install the cover.
■License plate light Remove the cover.
Insert a properly sized screw-
driver into the hole of the cover,
and ply off the cover as shown
in the illustration.
To prevent damaging the vehi-
cle, wrap the screwdriver with a
tape.
Remove the light bulb.
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2876-3. Do-it-yourself maintenance
6
Maintenance and care
Install the new bulb.
Install the cover.
Insert a properly sized screw-
driver into one of the holes,
push the screwdriver until click-
ing sound is heard. Repeat for
the other hole.
Make sure that the cover is
secured by pressing on the
entire cover.
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2896-3. Do-it-yourself maintenance
6
Maintenance and care
■When installing the rubber cover of the headlight
Ensure the rubber cover is securely attached.
■ LED Lights
The high mounted stoplight and daytime running lights (LED type) consists of
a number of LEDs. If any of the LEDs burn out, take your vehicle to your Toy-
ota dealer to have the light replaced.
■ Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not
indicate a malfunction. Contact your Toyota dealer for more information in the
following situations:
●Large drops of water have built up on the inside of the lens.
● Water has built up inside the headlight.
■ When replacing light bulbs
→P. 276 Fit the rubber cover outer circumfer-
ence in firmly.
Fit the rubber cover around the light
bulb in until the light bulb plug can be
seen.
WARNING
■
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. When it 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. 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.
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2977-2. Steps to take in an emergency
7
When trouble arises
If a tow truck is not available in an emergency, your vehicle may be
temporarily towed using cables or chains secured to the emergency
towing eyelets. This should only be attempted on hard surfaced roads
for at most 50 miles (80 km) 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.
For vehicles with an automatic transmission, only the front towing
eyelets may be used.
Take out the towing eyelet. ( →P. 313)
Remove the eyelet cover by
turning.
Insert the towing eyelet into the
hole and tighten partially by
hand.
Emergency towing
Emergency towing procedure
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2987-2. Steps to take in an emergency
Tighten down the towing eyelet
securely using a wheel nut
wrench or hard metal bar.
Securely attach cables or chains to the towing eyelet.
Take care not to damage the vehicle body.
Enter the vehicle being towed and start the engine.
If the engine does not start, turn the engine switch to the “ON” p\
osition.
Shift the shift lever to N and release the parking brake.
When the shift lever cannot be sh ifted (automatic transmission):
→ P. 1 4 0
■While towing
If the engine is not running, the power assist for the brakes and steering will
not function, making steering and braking more difficult.
■ Wheel nut wrench
Wheel nut wrench is installed in the luggage. ( →P. 313)
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2997-2. Steps to take in an emergency
7
When trouble arises
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When towing the vehicle
■ While towing
● When towing using cables or chains, avoid sudden starts, etc. which place
excessive stress on the towing eyelets, cables or chains. The towing eye-
lets, cables or chains may become damaged, broken debris may hit peo-
ple, and cause serious damage.
● Do not turn the engine switch to the “LOCK” position.
There is a possibility that the steering wheel is locked and cannot be oper-
ated.
■ Installing towing eyelets to the vehicle
Make sure that towing eyelets are installed securely.
If not securely installed, towing eyelets may come loose during towing.
NOTICE
■To prevent damage to the vehicle when towing using a wheel-lift type
truck
● Do not tow the vehicle from the rear when the engine switch is in the
“LOCK” position or the key is removed.
The steering lock mechanism is not strong enough to hold the front wheels
straight.
● 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 damage to the vehicle when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
■ To prevent damage to the vehic le during emergency towing
Do not secure cables or chains to the suspension components.
Be sure to transport the vehicle with the
front wheels raised or with all four wheels
raised off the ground. If the vehicle is
towed with the front wheels contacting
the ground, the drivetrain and related
parts may be damaged.

3077-2. Steps to take in an emergency
7
When trouble arises
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors, driver’s seat belt buckle switch, front passen-
ger occupant classification system (ECU and sensors), “AIR BAG ON” indica-
tor, “AIR BAG OFF” indicator, front passenger’s seat belt buckle switch, seat
belt pretensioner assemblies, airbags, interconnecting wiring and power
sources. ( →P. 34)
■ Front passenger detection sensor, passenger seat belt reminder and
warning buzzer
● If luggage is placed on the front passenger seat, the front passenger de\
tec-
tion sensor may cause the warning light to flash and the warning buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and \
the
warning buzzer may sounds.
■ If the malfunction indicator la mp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Toyota dealer as soon as possible.
■
When the tire pressure warning light comes on (vehicles with a tire
pressure warning system)
Check the tire inflation pressure and adjust to the appropriate level. Push-
ing the tire pressure warning reset switch will not turn off the tire pressure
warning light.

3157-2. Steps to take in an emergency
7
When trouble arises
Move the driver’s seat to the
front most position and remove
the cover.
Take out the jack.For tightening
For loosening
Lift the deck board and pull it toward you to remove it. ( →P. 219)
Remove the luggage floor
cover.
Loosen the center fastener that
secures the spare tire.
Taking out the jack
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Taking out the spare tire
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