cooling TOYOTA VERSO 2017 Owners Manual

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WARNING
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 or 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 sulphuric acid.
● Take care because brake fluid can harm your hands or eyes and damage
painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with
clean water immediately.
If you still experience discomfort, see a doctor.
■ When working near the electric cooling fan or radiator grille
● Vehicles without smart entry & start system: Be sure the engine switch is
in the “LOCK” position.
With the engine switch in the “ON” position, the electric cooling fan may
automatically start to run if the air conditioning is on and/or the coolant
temperature is high. ( P. 460)

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Maintenance and care
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WARNING
■ When working near the electric cooling fan or radiator grille
● Vehicles with smart entry & start system: Be sure the “ENGINE START
STOP” switch is off.
With the “ENGINE START STOP” switch in IGNITION ON mode, the elec-
tric cooling fan may automatically start to run if the air conditioning is on
and/or the coolant temperature is high. ( P. 460)
● Diesel engine only: After the temperature in the engine compartment has
become high, the electric cooling fan may operate even after the engine
has been stopped.
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in the 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.
■ If the brake fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.

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Engine compartment
Gasoline engine
Washer fluid tank (P. 465)
Engine coolant reservoir
( P. 458)
Engine oil level dipstick
( P. 453)
Engine oil filler cap
( P. 455)
Fuse box (P. 491)
Battery ( P. 461)
Electric cooling fan
Condenser ( P. 460)
Radiator ( P. 460)

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Diesel engine
Washer fluid tank ( P. 465)
Engine coolant reservoir
( P. 458)
Engine oil filler cap
( P. 455)
Engine oil level dipstick
( P. 453)
Fuel filter (P. 466)
Fuse box ( P. 491)
Battery ( P. 461)
Condenser ( P. 460)
Electric cooling fans
Intercooler ( P. 460)
Radiator ( P. 460)

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■ If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, reservoir cap, radiator cap, drain cock
and water pump.
If you cannot find a leak, have any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional, test the cap and check for
leaks in the cooling system.
■ Coolant selection
Gasoline engine
Only use “Toyota Super Long Life Coolant” or similar high quality eth-
ylene glycol based non-silicate, non- amine, non-nitrite, and non-borate
coolant with long-life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50%
deionized water. (Enabled: -35 C [-31F])
Diesel engine
Only use “Toyota Genuine Premium Long Life Coolant 1WW/2WW” or
equivalent.
“Toyota Genuine Premium Long Life Coolant 1WW/2WW” is pre-mixed
with 50% coolant and 50% deionized water. (Enabled: -35 C [-31F])
For more details about engine coolant, contact any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
WARNING
■ When the engine is hot
Do not remove the 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.

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Radiator, condenser and intercooler
Check the radiator, condenser and intercooler (diesel engine only)
and clear any foreign objects.
If any of the above parts are extremely dirty or you are not sure of
their condition, have your vehicle checked by any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
NOTICE
■ When adding engine coolant
Coolant is neither plain water nor straight 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 damage to parts or paint.
WARNING
■ When the engine is hot
Do not touch the radiator, condenser or intercooler, as they may be hot and
cause serious injuries, such as burns.
■ When the electric cooling fan may operate even after the engine has
been stopped (diesel engine only)
 P. 445

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Fuse layout and amperage ratings
■ Engine compartment
FuseAmpereCircuit
1TO IP J/B*1120 A
ECU-IG NO.2, HTR-IG, WIPER,
RR WIPER, WASHER, ECU-IG
NO.1, ECU-IG NO.3, SEAT HTR,
AM1*3, DOOR, STOP, FR DOOR,
POWER, RR DOOR, RL DOOR,
OBD, ACC-B, RR FOG, FR FOG,
DEF, TAIL, SUNROOF, DRL
2H-LP CLN30 A Headlight cleaners
3RDI FAN40 A Electric cooling fan(s)
4CDS FAN*130 A Electric cooling fan(s)
5 ABS NO.1 50 A Anti-lock brake system, VSC+
6HTR*250 A Air conditioning system

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*1: Vehicles with diesel engine
*2: Vehicles with gasoline engine
*3: Vehicles without smart entry & start system
*4: Vehicles with halogen headlights
*5: Vehicles with discharge headlights
44 EFI NO.1
7.5 A*1Multiport fuel injection system/
sequential multiport fuel injection
system
10 A*2Multiport fuel injection system/
sequential multiport fuel injection
system
45 H-LP RH HI 10 A Right-hand headlight (high beam)*4,
right-hand headlight solenoid*5
46 H-LP LH HI 10 A Left-hand headlight (high beam)*4,
left-hand headlight solenoid*5
47 H-LP RH LO
10 A*4Right-hand headlight (low beam)
15 A*5Right-hand discharge headlight
(low and high beam)
48 H-LP LH LO
10 A*4Left-hand headlight (low beam)
15 A*5Left-hand discharge headlight (low
and high beam)
49 RDI EFI*15 A Electric cooling fan(s)
50 CDS EFI*15 A Electric cooling fan(s)
FuseAmpereCircuit

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9 RR FOG 7.5 A Rear fog light
10 IGN 7.5 A
Steering lock system, SRS airbag
system, multiport fuel injection sys-
tem/sequential multiport fuel injec-
tion system, starting system,
gateway ECU
11 M E T E R 7 . 5 A Gauges and meters, Stop & Start
system*1
12 SEAT HTR 15 A Seat heaters
13 HTR-IG 10 A Air conditioning system, power
heater
14 WIPER 25 A Windshield wipers, rain-sensing
windshield wipers
15 RR WIPER 15 A Rear window wiper
16 WASHER 15 A Windshield washers, rear window
washer
17 ECU-IG NO.1 10 A
Main body ECU*2, electric cooling
fan(s), shift lock system, anti-lock
brake system, steering sensor, yaw
rate sensor, VSC+, headlight
cleaners, SEQUENTIAL switch,
automatic headlight leveling sys-
tem, electric power steering, tire
pressure warning system
18 ECU-IG NO.2 10 A
Back-up light, charging system*2,
emergency flashers, rear window
defogger, “PASSENGER AIRBAG”
indicator, air conditioning system,
Toyota parking assist-sensor indi-
cator, Toyota parking assist-sensor
switch, sub-battery
FuseAmpereCircuit

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5-2. Steps to take in an emergency
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WARNING
■ Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while
related parts contain lead and lead compounds. Observe the following pre-
cautions when handling the battery.
● When working with the battery, always wear safety glasses and take care
not to allow any battery fluids (acid) to come into contact with skin, clothing
or the vehicle body.
● Do not lean over the battery.
● In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.
● Always wash your hands after handling the battery support, terminals, and
other battery-related parts.
● Do not allow children near the battery.
NOTICE
■To prevent damaging the vehicle (vehicles with a manual transmission)
Do not pull- or push-start the vehicle, because the catalytic converter may
overheat and become a fire hazard.
■ When handling jumper cables
Be careful that the jumper cables do not become tangled in the cooling fan
or any of the belts when c onnecting or disconnecting them.