cooling TOYOTA xB 2012 Owners Manual (in English)

172
Scion_xB_OM_OM12G11U_(U)
3-1. Using the air conditioning system and defogger
Air conditioning system
Fan speed control knob
Air outlet selector knob
Outside/recirculated air mode button Cooling and dehumidification
function on/off buttonTemperature control knob

175
3-1. Using the air conditioning system
and defogger
3
Interior features
Scion_xB_OM_OM12G11U_(U)
Air flows to the feet and the
windshield defogger operates.
The air intake is automatically
switched to outside air mode. It is
not possible to return to recircu-
lated air mode when the switch is
on.
Pressing to turn the cooling
and dehumidification function on
clears the windshield and side
windows faster.
Air flows to the windshield and
side windows.
The air intake is automatically
switched to outside air mode. It is
not possible to return to recircu-
lated air mode when the switch is
on.
Pressing to turn the cooling
and dehumidification function on
clears the windshield and side
windows faster.
■Switching between outside air and recirculated air modes
Press .
The mode switches between outside air mode (introduces air from out-
side the vehicle) (indicator off) and recirculated air mode (recycles air
inside the vehicle) (indicator on) each time the button is pressed.

177
3-1. Using the air conditioning system
and defogger
3
Interior features
Scion_xB_OM_OM12G11U_(U)
■Using the system in recirculated air mode
The windows will fog up more easily if recirculated air mode is used for an
extended period of time.
■ When
is selected for the air outlets used
For your driving comfort, air flowing to the feet may be warmer than air flow-
ing to the upper body depending on the temperature setting.
■ When outside air temperature is below 32°F (0°C)
The cooling and dehumidification function may not operate even when

is pressed.
■ Air conditioning odors
● During use, various odors from inside and outside the vehicle may enter
into and accumulate in the air conditioning system. This may then cause
odor to be emitted from the vents.
● To reduce potential odors from occurring:
It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The
difference between the temperature of the outside air and that of the wind-
shield can cause the outer surface of the windshield to fog up, blocking your
vision.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the
engine is stopped.

217
4-3. Do-it-yourself maintenance
4
Maintenance and care
Scion_xB_OM_OM12G11U_(U)
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions:
■
When working on the engine compartment
● Keep hands, clothing, and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
● Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or the bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
■ When working near the electric c ooling fans or radiator grille
Be sure the engine switch is off.
With the ignition on, the electric cooling fans may automatically start to run if
the air conditioning is on and/or the coolant temperature is high. ( P. 229)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air.

222
4-3. Do-it-yourself maintenance
Scion_xB_OM_OM12G11U_(U)
Engine compar tment
Washer fluid tank (P. 234)
Engine coolant reservoir ( P. 227)
Engine oil filler cap ( P. 224)
Engine oil level dipstick ( P. 223)Brake fluid reservoir
( P. 229)
Fuse box ( P. 256)
Battery ( P. 232)
Electric cooling fans
Condenser ( P. 229)
Radiator ( P. 229)

227
4-3. Do-it-yourself maintenance
4
Maintenance and care
Scion_xB_OM_OM12G11U_(U)
Engine coolant
The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold.
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line. (P. 322)
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Minimum temperature: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44 F [-42 C])
For more details about engine coolant, contact your Scion dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock
and water pump.
If you cannot find a leak, have your Scion dealer test the cap and check for
leaks in the cooling system.

228 4-3. Do-it-yourself maintenance
Scion_xB_OM_OM12G11U_(U)
CAUTION
■When the engine is hot
Do not remove the engine coolant reservoir cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor stra ight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent damaging parts or paint.

259
4-3. Do-it-yourself maintenance
4
Maintenance and care
Scion_xB_OM_OM12G11U_(U)
Fuse layout and amperage ratings
■ Engine compartment
FuseAmpereCircuit
1 CDS FAN 30 A Electric cooling fan
2 RAD FAN 40 A Electric cooling fan
3 ABS NO.3 30 A Anti-lock brake system, vehicle sta-
bility control system
4 ABS NO.1 50 A Anti-lock brake system, vehicle sta-
bility control system
5 HTR 50 A Air conditioning system
6 ALT 120 A RDI FAN, CDS FAN, ABS NO.1,
ABS NO.3, HTR, AM1, DOOR,
STOP, FR DOOR, POWER, RR
DOOR, RL DOOR, OBD, ACC-B,
DEF, TAIL, PANEL
7 EPS 60 A Electric power steering system
8 P/I 50 A EFI MAIN, HORN, IG2

263
4-3. Do-it-yourself maintenance
4
Maintenance and care
Scion_xB_OM_OM12G11U_(U)
9 MIR HTR
10 AMultiport fuel injection system/
sequential multiport fuel injection
system, outside rear view mirror
defoggers
10 IGN 7.5 AMultiport fuel injection system/
sequential multiport fuel injection
system, SRS airbag system, steer-
ing lock system
11 METER 7.5 A Gauges and meters
12 HTR-IG 10 A Air conditioning system
13 WIPER 25 A Windshield wipers
14 RR WIPER 15 A Rear window wiper
15 WASHER 15 A Washer
16 ECU-IG NO.1 10 A Multiport fuel injection system/
sequential multiport fuel injection
system, electric power steering,
electric cooling fan, anti-lock brake
system, vehicle stability control
system, shift lock control system,
audio system, body ECU
17 ECU-IG NO.2 10 A Back-up light, emergency flasher,
air conditioning system, rear win-
dow defogger, charging system,
multiport fuel injection system/
sequential multiport fuel injection
system, front passenger’s seat belt
reminder light
FuseAmpereCircuit

5
When trouble arises
321
5-2. Steps to take in an emergency
Scion_xB_OM_OM12G11U_(U)
NOTICE
■
When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fans or belt.