ECU TOYOTA COROLLA CROSS 2023 Repair Manual

3075-3. Using the storage features
5
Interior features
The cargo hooks are provided
for securing loose items.
■Using the luggage cover
1 Pull out the luggage cover
and hook it onto the anchors.
2 Release the cover from the
left and right anchors and
allow it to retract.
Luggage compart-
ment features
Cargo hooks
WARNING
■When cargo hooks are not in
use
To avoid injury, always return the
hooks to their stowed positions
when not in use.
Grocery bag hooks
NOTICE
■To prevent damage to the gro-
cery bag hooks
Do not hang any object heavier
than 4.4 lb. (2 kg ) on the grocery
bag hooks.
Luggage cover (if
equipped)
WARNING
■Luggage cover
●Do not place anything on the
luggage cover. In the event of
sudden braking or turning, the
item may go flying and strike an
occupant. This could lead to an
unexpected accident, resulting
in death or serious injury.
●Do not allow children to climb
on the luggage cover. Climbing
on the luggage cover could
result in damage to the luggage
cover, possibly causing death or
serious injury to the child.

3095-4. Other interior features
5
Interior features
5-4.Other interior features
The USB charging port are used
to supply 3.0 A of electricity at 5
V to external devices.
The USB charging port are for
charging only. They are not
designed for data transfer or
other purposes.
Depending on the external
device, it may not charge prop-
erly. Refer to the manual
included with the device before
using a USB charging port.
■Using the USB charging
ports
Front
Open the console box lid.
Rear (if equipped)
■The USB charging port can be
used when
The engine switch i s in ACC or ON.
■Situations in which the USB
charging port may not operate
correctly
●If a device which consumes more
than 3.0 A at 5 V is connected
●If a device designed to communi-
cate with a personal computer,
such as a USB memory device, is
connected
●If the connected external device is
turned off (depend ing on device)
●If the temperature inside the vehi-
cle is high, such as after the vehi-
cle has been parked in the sun
●If the connected device or cable is
damaged
■About connected external
device
Depending on the connected exter-
nal device, charging may occasion-
ally be suspended and then start
again. This is not a malfunction.
Other interior features
USB charging port
WARNING
■Attention while driving
For security, the driver, please do
not operate the p ortable device
body while driving.
NOTICE
■To prevent damage to the
USB charging port
●Do not insert foreign objects into
the port.
●Do not spill water or other liq-
uids into the port.
●Do not apply excessive force to
or impact the USB charging
port.

3205-4. Other interior features
*: If equipped
■HomeLink® programming pro-
cedure
The programming procedures can
also be found at the following URL.
Website: www.homelink.com/toyota
For support, contact customer sup-
port at the following.
Help Line: 1-800-355-3515
The HomeLink® wireless control
system in your vehicle has 3
buttons which can be pro-
grammed to operate 3 different
devices. Refer to the program-
ming methods on the following
pages to determine the method
which is appropriate for the
device. HomeLink
® indicator light
Garage door operation indi-
cators
HomeLink
® icon
Illuminates while HomeLink® is
operating.
Buttons
■Codes stored in the Home-
Link® memory
●The registered codes are not
erased even if the battery cable is
disconnected.
●If learning failed when registering
a different code to a HomeLink®
button that already has a code
registered to it, the already regis-
tered code will not be erased.
Garage door opener*
The garage door opener can
be programmed using the
HomeLink
® to operate
garage doors, gates, entry
doors, door locks, home
lighting systems, security
systems, and other devices.
System components
WARNING
■When programming a garage
door or other remote control
device
The garage door or other device
may operate, so ensure people
and objects are out of danger to
prevent potential harm.

3366-2. Maintenance
General maintenance
Listed below are the general
maintenance items that
should be performed at the
intervals specified in the
“Owner’s Warranty Informa-
tion Booklet” or “Owner’s
Manual Supplement/Sched-
uled Maintenance Guide”. It
is recommended that any
problem you notice should
be brought to the attention
of your Toyota dealer or
qualified service shop for
advice.
WARNING
■If the engine is running
Turn the engine off and ensure
that there is adequate ventilation
before performing maintenance
checks.
Engine compartment
ItemsCheck points
BatteryCheck the connec-
tions. ( P.348)
Brake fluid
Is the brake fluid at
the correct level?
( P.347)
Engine coolant
Is the engine cool-
ant at the correct
level? ( P.346)
Engine oil
Is the engine oil at
the correct level?
( P.344)
Exhaust sys-
temThere should not
be any fumes or
strange sounds.
Radiator/con-
denser
The radiator and
condenser should
be free from for-
eign objects.
( P.347)
Washer fluid
Is there sufficient
washer fluid?
( P.350)
Vehicle interior
ItemsCheck points
Accelerator
pedal
The accelerator
pedal should move
smoothly (without
uneven pedal effort
or catching).
Continuously
variable trans-
mission “Park”
mechanismWhen parked on a
slope and the shift
lever is in P, is the
vehicle securely
stopped?
Brake pedal
• Does the brake
pedal move
smoothly?
• Does the brake pedal have
appropriate
clearance from
the floor?
( P.433)
• Does the brake pedal have the
correct amount
of free play?
( P.433)
ItemsCheck points

3376-2. Maintenance
6
Maintenance and care
Brakes
• The vehicle should not pull to
one side when
the brakes are
applied.
• The brakes should work
effectively.
• The brake pedal should not feel
spongy.
• The brake pedal should not get
too close to the
floor when the
brakes are
applied.
Head
restraints
Do the head
restraints move
smoothly and lock
securely?
Indica-
tors/buzzersDo the indicators
and buzzers func-
tion properly?
LightsDo all the lights
come on?
Parking brake
• Does the park-ing brake oper-
ate normally?
• When parked on a slope and the
parking brake is
on, is the vehicle
securely
stopped?
ItemsCheck points
Seat belts
• Do the seat belts operate
smoothly?
• The seat belts should not be
damaged.
Seats
Do the seat con-
trols operate prop-
erly?
Steering wheel
• Does the steer-ing wheel rotate
smoothly?
• Does the steer- ing wheel have
the correct
amount of free
play?
• There should not be any strange
sounds coming
from the steer-
ing wheel.
Vehicle exterior
ItemsCheck points
DoorsDo the doors oper-
ate smoothly?
Engine hood
Does the engine
hood lock system
work properly?
Fluid leaks
There should not
be any signs of
fluid leakage after
the vehicle has
been parked.
ItemsCheck points

3426-3. Do-it-yourself maintenance
1Pull the hood lock release
lever.
The hood will pop up slightly.
2Pull the auxiliary catch lever
to the left and lift the hood. 3
Hold the hood open by insert-
ing the support rod into the
slot.
Hood
Opening the hood
WARNING
■Pre-driving check
Check that the hood is fully closed
and locked.
If the hood is not locked properly,
it may open while the vehicle is in
motion and cause an accident,
which may result i n death or seri-
ous injury.
■After installing the support
rod into the slot
Make sure the rod supports the
hood securely preventing it from
falling down onto your head or
body.
NOTICE
■When closing the hood
Be sure to return the support rod
to its clip before closing the hood.
Closing the hood with the support
rod not clipped could cause the
hood to bend.

3696-3. Do-it-yourself maintenance
6
Maintenance and care
minal facing up.
4Install the cover.
Align the cover with the key and
then press it straight into the key.
Make sure that the cover is
securely installed without any gaps
between it and the key.
5Operate the or switch
and check that the doors can
be locked/unlocked.
Vehicles with a smart key sys-
tem
1 Release the lock and remove
the mechanical key. 2
Remove the key cover.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a rag.
3Remove the depleted battery
using a small flathead screw-
driver.
When removing the cover, the elec-
tronic key module may stick to the
cover and the batt ery may not be
visible. In this case, remove the
electronic key module in order to
remove the battery.
Insert a new battery with the “+” ter-
minal facing up.
4 When installing the key cover
and mechanical key, install
by conducting step 2 and
step 1 with the directions
reversed.
5 Operate the or switch
and check that the doors can
be locked/unlocked.

3726-3. Do-it-yourself maintenance
Normal fuse
Blown fuse
Type C
Normal fuse
Blown fuse
Type DNormal fuse
Blown fuse
■After a fuse is replaced
●When installing the lid, make sure
that the tab is installed securely.
●If the lights do n ot turn on even
after the fuse has been replaced,
a bulb may need replacement.
(  P.374)
●If the replaced fuse blows again,
have the vehicle inspected by
your Toyota dealer.
■If there is an overload in a cir-
cuit
The fuses are designed to blow, pro- tecting the wiring harness from
damage.
WARNING
■To prevent system break-
downs and vehicle fire
Observe the following precau-
tions.
Failure to do so may cause dam-
age to the vehicle, and possibly a
fire or injury.
●Never use a fuse of a higher
amperage rating than that indi-
cated, or use any other object in
place of a fuse.
●Always use a genuine Toyota
fuse or equivalent.
Never replace a fuse with a
wire, even as a temporary fix.
●Do not modify the fuses or fuse
boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical over-
load determined and repaired by
your Toyota dealer as soon as
possible.

3796-3. Do-it-yourself maintenance
6
Maintenance and care
right or left hooks.
2 Push the lens into place.
After installation, confirm that the
lens is properly installed by gently
pulling it.
WARNING
■To prevent injury
Before performing any light bulb
replacement procedure, be sure
to turn the e ngine switch off. Fail-
ure to do so may result in burns
from hot compone nts or a part of
your body may get caught on an
operating component, possibly
causing serious injury.
■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. Fail-
ure to do so may result in heat
damage, fire, or water entering
the light unit. This may damage
the lights or cause condensa-
tion to build up on the lens.
■To prevent damage or fire
●Make sure bulbs are fully
seated and locked.
●Check the wattage of the bulb
before installing to prevent heat
damage.

3837-1. Essential information
7
When trouble arises
turning the engine switch to
ACC.
4 Vehicles with a smart key
system: To stop the engine,
press and hold the engine
switch for 2 consecutive sec-
onds or more, or press it
briefly 3 times or more in suc-
cession.
5 Stop the vehicle in a safe
place by the road.
WARNING
■If the engine has to be turned
off while driving
●Power assist for the brakes and
steering wheel will be lost, mak-
ing the brake pedal harder to
depress and the steering wheel
heavier to turn. Decelerate as
much as possible before turning
off the engine.
●Vehicles without a smart key
system: Never attempt to
remove the key.