2022 TOYOTA YARIS ECU

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1-4. Hybrid system
For safety and security
hybrid battery (traction battery) is
not being charged.
*: When the hybrid battery (traction bat-
tery) requires charging or the engine
is warming up, etc., the gasoline
engine will not automatically stop.
( P. 7 7 )
■During normal driving
The gasoline engine is predomi-
nantly used. The electric motor
(traction motor) charges the hybrid
battery (traction battery) as neces-
sary.
■When accelerating sharply
When the accelerator pedal is
depressed heavily, the power of the
hybrid battery (traction battery) is
added to that of the gasoline engine
via the electric motor (traction
motor).
■When braking (regenerative
braking)
The wheels operate the electric
motor (traction motor) as a power
generator, and the hybrid battery
(traction battery) is charged.
■Regenerative braking
●In the following situations, kinetic energy is converted to electric energy
and deceleration force can be obtained in conjunction with the recharging of the hybrid battery (trac-
tion battery). • The accelerator pedal is released while driving with the shift lever in D or
B. • The brake pedal is depressed while driving with the shift lever in D or B.
●Vehicles with GPF system: While the GPF system ( P.276) is operating to
regenerate the exhaust gas filter, the
hybrid battery (traction battery) may not be recharged.
■EV indicator
The EV indicator comes on when the
vehicle is driven using only the electric motor (traction motor) or the gasoline engine is stopped.
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop automatically in the following conditions:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●When the temperature of the hybrid battery (traction battery) is high or low
●When the heater is switched on
Depending on the circumstances, the gasoline engine may also not stop auto-
matically in other situations.
■Charging the hybrid battery (trac- tion battery)
As the gasoline engine charges the
hybrid battery (traction battery), the bat- tery does not need to be charged from an outside source. However, if the vehi-
cle is left parked for a long time the hybrid battery (traction battery) will slowly discharge. For this reason, be
sure to drive the vehicle at least once every few months for at least 30 minutes or 16 km (10 miles). If the hybrid battery
(traction battery) becomes fully dis- charged and you are unable to start the hybrid system, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.

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1-4. Hybrid system
For safety and security
The illustration is an example for explanation and may differ from the actual item.
Warning label
Service plug
Hybrid battery (traction battery)
High voltage cables (orange)
Electric motor (traction motor)
Air conditioning compressor
Power control unit
Hybrid system precautions
Take care when handling the hybrid system, as it is a high volt age
system (about 580V at maximum) as well as contains parts that
become extremely hot when the hybrid system is operating. Obey
the warning labels attached to the vehicle.
System components

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1-4. Hybrid system
For safety and security
WARNING
●If electric wires are exposed inside or outside your vehicle, an electric
shock may occur. Never touch exposed electric wires.
●If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possi-ble. Never use a fire extinguisher
that is not meant for electric fires. Using even a small amount of water may be dangerous.
●If your vehicle needs to be towed, do so with the front wheels raised. If
the wheels connected to the electric motor (traction motor) are on the ground when towing, the motor may
continue to generate electricity. This may cause a fire. ( P.369)
●Carefully inspect the ground under the vehicle. If you find that liquid has leaked onto the ground, the fuel
system may have been damaged. Leave the vehicle as soon as possi-ble.
●Do not touch the battery if liquid is leaking from or adhering to it. If
electrolyte (carbonate ester-based organic electrolyte) from the hybrid battery (traction battery) comes into
contact with the eyes or skin, it could cause blindness or skin wounds. In the unlikely event that it
comes into contact with the eyes or skin, wash it off immediately with a large amount of water, and seek
immediate medical attention.
●If electrolyte is leaking from the hybrid battery (traction battery), do not approach the vehicle. Even in
the unlikely event that the hybrid battery (traction battery) is dam-aged, the internal construction of
the battery will prevent a large amount of electrolyte from leaking out. However, any electrolyte that
does leak out will give off a vapor. This vapor is an irritant to skin and eyes and could cause acute poi-
soning if inhaled.
●Do not bring burning or high-tem-
perature items close to the electro- lyte. The electrolyte may ignite and cause a fire.
■Hybrid battery (traction battery)
●Your vehicle contains a sealed lith-
ium-ion battery.
●Never resell, hand over or modify
the hybrid battery. To prevent acci- dents, hybrid batteries that have been removed from a disposed
vehicle are collected through any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer. Do not dispose of the bat- tery yourself.
Unless the battery is properly col-
lected, the following may occur,
resulting in death or serious injury:
• The hybrid battery may be illegally disposed of or dumped, and it is
hazardous to the environment or someone may touch a high voltage part, resulting in an electric shock.
• The hybrid battery is intended to be used exclusively with your hybrid
vehicle. If the hybrid battery is used outside of your vehicle or modified in any way, accidents such as elec-
tric shock, heat generation, smoke generation, an explosion and elec-trolyte leakage may occur.

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1-4. Hybrid system
For safety and security
vates, your vehicle will not restart.
To restart the hybrid system, con-
tact any authorized Toyota retailer
or Toyota authorized repairer, or
any reliable repairer.
A message is automatically dis-
played when a malfunction occurs
in the hybrid system or an improper
operation is attempted.
If a warning message is shown on
the multi-information display, read
the message and follow the instruc-
tions.
■If a warning light comes on, a warn- ing message is displayed, or the 12-volt battery is disconnected
The hybrid system may not start. In this case, try to start the system again. If the “READY” indicator does not come on,
contact any authorized Toyota retailer or Toyota authorized repairer, or any reli-able repairer.
Hybrid warning message

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1-5. Theft deterrent system
1-5.Theft de terre nt sys te m
Vehicles without a smart entry &
start system
The indicator light flashes after the
key has been removed from the
power switch to indicate that the
system is operating.
The indicator light stops flashing
after the registered key has been
inserted into the power switch to
indicate that the system has been
canceled.
Vehicles with a smart entry &
start system
The indicator light flashes after the
power switch has been turned off to
indicate that the system is operat-
ing.
The indicator light stops flashing
after the power switch has been
turned to ACC or ON to indicate
that the system has been canceled.
■System maintenance
The vehicle has a maintenance-free type immobilizer system.
■Conditions that may cause the sys-
tem to malfunction
●If the grip portion of the key is in con-
tact with a metallic object
●If the key is in close proximity to or
touching a key to the security system (key with a built-in transponder chip) of another vehicle
■Certifications for the immobilizer
system
 P. 4 4 3
Immobilizer system
The vehicle’s keys have built-
in transponder chips that pre-
vent the hybrid system from
starting if a key has not been
previously registered in the
vehicle’s on-board computer.
Never leave the keys inside the
vehicle when you leave the
vehicle.
This system is designed to
help prevent vehicle theft but
does not guarantee absolute
security against all vehicle
thefts.
Operating the system
NOTICE
■To ensure the system operates
correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.

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1-5. Theft deterrent system
For safety and security
*: If equipped
■Setting
Turn the power switch off, have all
the passengers exit the vehicle and
ensure that all the doors are closed.
Using the entry function (if
equipped): Touch the sensor area
on the outside door handle twice
within 5 seconds.
Using the wireless remote control:
Press twice within 5 seconds.
■Canceling
Using the entry function (if
equipped): Hold the outside door
handle.
Using the wireless remote control:
Press .
Double locking system*
Unauthorized access to the
vehicle is prevented by dis-
abling the door unlocking
function from both the interior
and exterior of the vehicle.
Vehicles employing this sys-
tem have labels on the window
glass of both front doors.
Setting/canceling the double
locking system
WARNING
■Double locking system precau- tion
Never activate the double locking sys-
tem when there are people in the vehicle because all the doors cannot be opened from inside the vehicle.

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1-5. Theft deterrent system
For safety and security
●The 12-volt battery is recharged or
replaced when the vehicle is locked. ( P. 4 1 1 )
■Alarm-operated door lock
In the following cases, depending on the situation, the door may automatically
lock to prevent improper entry into the vehicle:
●When a person remaining in the vehi-cle unlocks the door and the alarm is activated.
●While the alarm is activated, a person remaining in the vehicle unlocks the
door.
●When recharging or replacing the 12-
volt battery
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation of the system cannot be
guaranteed.

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2-1. Instrument cluster
Vehicle status information and indicators
*1: These lights come on when the
power switch is turned to ON to indi-
cate that a system check is being
performed. They will turn off after the
hybrid system is started, or after a
few seconds. There may be a mal-
function in a system if the lights do
not come on, or turn off. Have the
vehicle inspected by any authorized
Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
*2: This light comes on when the system
is turned off.
*3: This light illuminates on the multi-
information display.
*4: Depending on the operating condi-
tion, the color and illuminating/flash-
ing state of the light change.
*5: This light illuminates on the outside
rear view mirrors.
*6: For vehicles with vertical display, this
light illuminates on the multi-informa-
tion display.
*7: When the outside temperature is
approximately 3°C (37°F) or lower,
this indicator will flash for approxi-
mately 10 seconds, then stay on.
*8: This light illuminates on the center
panel.
*4
LTA indicator*3 (if equipped)
( P.209, 225)
BSM outside rear view mirror
indicators*1, 5 (if equipped)
( P.249, 260)
BSM OFF indicator*2 (if
equipped) ( P.249)
Toyota parking assist-sensor
OFF indicator*1, 2 (if
equipped) ( P.254)
“RCTA OFF” indicator*1, 2 (if
equipped) ( P.260)
PKSB OFF indicator*1, 2 (if
equipped) ( P.266)
Speed limiter indicator*3 (if
equipped) ( P.242)
(Flashes)
Slip indicator*1 (P.278)
VSC OFF indicator*1, 2
( P.278)
Smart entry & start system
indicator*3 ( P.175)
“READY” indicator ( P.175)
EV drive mode indicator*6
( P.179)
Parking brake indicator
( P.184)
Brake hold standby indica-
tor*1 ( P.187)
Brake hold operated indica-
tor*1 ( P.187)
EV indicator*6 ( P. 7 7 )
Low outside temperature
indicator*3, 7 ( P.94, 99)
Security indicator ( P. 8 4 ,
86)
“PASSENGER AIR
BAG” indicator*1, 8
( P.45)
Eco drive mode indicator*3
( P.275)
Power mode indicator*3
( P.275)