2010 TOYOTA YARIS air condition

275 4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
■Proper inflation is critical to save tire performance
Keep your tires properly inflated.
Otherwise, the following conditions may occur and result in an accident
causing death or serious injury.
●Excessive wear
●Uneven wear
●Poor handling
●Possibility of blowouts resulting from overheated tires
●Poor sealing of the tire bead
●Wheel deformation and/or tire separation
●A greater possibility of tire damage from road hazards
NOTICE
■When inspecting and adjusting tire inflation pressure
Be sure to reinstall the tire valve caps.
Without the valve caps, dirt or moisture could get into the valve and
cause air leakage, which could result in an accident. If the caps have
been lost, replace them as soon as possible.

278
4-3. Do-it-yourself maintenance
Air conditioning filter
: If equipped
The air conditioning filter must be changed regularly to maintain air
conditioning efficiency.
■Removal method
Turn the engine switch off.
Open the glove box.
Push in each side of the glove
box to disconnect the claws.
Pinch the latches.
Remove the filter cover.

279 4-3. Do-it-yourself maintenance
4
Maintenance and care
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early replacement
may be required. (For scheduled maintenance information, please refer to
the “Scheduled Maintenance Guide” or “Owner’s Manual Supplement”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
Pull out the filter.
Rotate the filter to remove it.
■Installing method
Set a new filter.
The“UP” marks shown on the
filter should be pointing up.
Rotate the filter.
Push in the filter.

280 4-3. Do-it-yourself maintenance
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.

289 4-3. Do-it-yourself maintenance
4
Maintenance and care
13 ECU-B 7.5 ADaytime running light system, front
passenger occupant classification
system, power windows, door lock
system, theft deterrent system,
meter and gauge, traction control
system, vehicle stability control
system
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
17H-LP RH/H-LP
LO RH10 A Right-hand headlight
18H-LP LH/H-LP
LO LH10 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 AAnti-lock brake system, vehicle sta-
bility control system
23 HTR 40 A Air conditioning system
24 RDI 30 A Electric cooling fan
25 HTR SUB1 30 A Air conditioning system
26H-LP CLN/PWR
HTR30 A No circuit
27 AMT 50 A No circuit
FuseAmpereCircuit

292 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 AMultiport fuel injection system/
sequential multiport fuel injection
system, SRS airbag system, front
passenger occupant classification
system
11 MET 7.5 A Meter and gauge
12 WIP 25 A Windshield wiper
13 RR WIP 15 A Rear wiper
14 WSH 15 A Windshield washer
15 ECU-IG 10 ADaytime running light system, anti-
lock brake system, electric power
steering system, power windows,
door lock system, theft deterrent
system, electric cooling fan
16 GAUGE 10 ACharging 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 AStop 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
20 FR FOG 15 A Front fog lights
FuseAmpereCircuit

5
When trouble arises
311
5-1. Essential information
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your Toyota dealer as soon as
possible.
■Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●High engine coolant temperature warning light flashes or
comes on
●Low engine coolant temperature indicator comes on or does
not come on continuously
■Audible symptoms
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the engine
■Operational symptoms
●Engine missing, stumbling or running rough
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy feeling, pedal almost
touches the floor

346 5-2. Steps to take in an emergency
The engine has cooled down sufficiently.
Low engine coolant temperature indicator comes on.
Check the engine coolant level.
Look for obvious coolant leaks from the radiator, hoses and
under the vehicle.
Note that water draining from the air conditioning is normal if it has
been used.
Add engine coolant if required.
Water can be used in an emer-
gency if engine coolant is
unavailable. (P. 356)
Have the vehicle checked at your nearest Toyota dealer as soon as
possible.