ECU TOYOTA COROLLA 2017 11.G Service Manual

1233-2. Opening, closing and locking the doors
3
Operation of each component
COROLLA_TMMMS_TMMC_U (OM02494U)
WARNING
■Using the trunk
Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resulting in seri-
ous injury.
●Remove any heavy loads, such as snow and ice, from the trunk lid before
opening it. Failure to do so may cause the trunk lid to suddenly shut again
after it is opened.
●When opening or closing the trunk lid, thoroughly check to make sure the
surrounding area is safe.
●If anyone is in the vicinity, make sure they are safe and let them know that
the trunk is about to open or close.
●Use caution when opening or closing the trunk lid in windy weather as it
may move abruptly in strong wind.
●Do not attach any accessories other than genuine Toyota parts to the trunk
lid. Such additional weight on the trunk lid may cause the lid to suddenly
shut again after it is opened.
●The trunk lid may suddenly shut if it is
not opened fully. It is more difficult to
open or close the trunk lid on an incline
than on a level surface, so beware of
the trunk lid unexpectedly opening or
closing by itself. Make sure that the
trunk lid is fully open and secure before
using the trunk.
●When closing the trunk lid, take extra
care to prevent your fingers etc. from
being caught.
●When closing the trunk lid, make sure to
press it lightly on its outer surface. If the
trunk handle is used to fully close the
trunk lid, it may result in hands or arms
being caught.

1283-2. Opening, closing and locking the doors
COROLLA_TMMMS_TMMC_U (OM02494U)■Note for the entry function
●Even when the electronic key is within the effective range (detection areas),
the system may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near
the ground, or in a high place when the doors are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to
the rear bumper center when the trunk is opened.
• The electronic key is on the instrument panel, rear package tray or floor,
or in the door pockets or glove box when the engine is started or engine
switch modes are changed.
●Do not leave the electronic key on top of the instrument panel or near the
door pockets when exiting the vehicle. Depending on the radio wave recep-
tion conditions, it may be detected by the antenna outside the cabin and the
doors will become lockable from the outside, possibly trapping the electronic
key inside the vehicle.
●As long as the electronic key is within the effective range, the doors may be
locked or unlocked by anyone. However, only the doors detecting the elec-
tronic key can be used to unlock the vehicle.
●Even if the electronic key is not inside the vehicle, it may be possible to start
the engine if the electronic key is near the window.
●The doors may unlock or lock if a large amount of water splashes on the
door handle, such as in the rain or in a car wash, when the electronic key is
within the effective range. (The doors will automatically be locked after
approximately 60 seconds if the doors are not opened and closed.)
●If the wireless remote control is used to lock the doors when the electronic
key is near the vehicle, there is a possibility that the door may not be
unlocked by the entry function. (Use the wireless remote control to unlock
the doors.)
●Touching the door lock or unlock sensor while wearing gloves may prevent
lock or unlock operation.
●When the lock operation is performed using the lock sensor, recognition sig-
nals will be shown up to two consecutive times. After this, no recognition
signals will be given.
●If the door handle becomes wet while the electronic key is within the effec-
tive range, the door may lock and unlock repeatedly. In this case, follow the
following correction procedures to wash the vehicle:
• Place the electronic key in a location 6 ft. (2 m) or more away from the
vehicle. (Take care to ensure that the key is not stolen.)
• Set the electronic key to battery-saving mode to disable the smart key
system. (→P. 126)

1353-3. Adjusting the seats
3
Operation of each component
COROLLA_TMMMS_TMMC_U (OM02494U)
WARNING
■When folding the rear seatbacks down
Observe the following precautions. Failure to do so may result in death or
serious injury.
●Do not fold the seatbacks down while driving.
●Stop the vehicle on level ground, set the parking brake and shift the shift
lever to P (continuously variable transmission) or N (manual transmission).
●Do not allow anyone to sit on a folded seatback or in the trunk while driv-
ing.
●Do not allow children to enter the trunk.
●Do not allow anyone to sit on the rear center seat if the rear right seat is
folded down, as the seat belt buckle for the rear center seat belt is then
concealed under the folded seat and cannot be used.
●Be careful not to catch your hand when folding the rear seatbacks.
●Adjust the position of the front seat before folding down the rear seatbacks
so that the front seat does not interfere with the rear seatbacks when fold-
ing down the rear seatbacks.
■After returning the seatback to the upright position
Observe the following precautions. Failure to do so may result in death or
serious injury.
●Check that the seat belts are not twisted or caught under the seat.
NOTICE
■When the rear right seatback is folded down
Make sure the luggage loaded in the enlarged trunk will not damage the
webbing of the rear center seat belt.
●Make sure that the seatback is securely
locked in position by lightly rocking it
back and forth.
If the seatback is not securely locked,
the red marking will be visible on the
seatback lock release knob. Make sure
that the red marking is not visible.

139
3
Operation of each component
COROLLA_TMMMS_TMMC_U (OM02494U)
3-4. Adjusting the steering wheel and mirrors
Hold the steering wheel and
push the lever down.
Adjust to the ideal position by
moving the steering wheel hori-
zontally and vertically.
After adjustment, pull the lever up
to secure the steering wheel.
To sound the horn, press on or
close to the mark.
Steering wheel
Adjustment procedure
1
2
Horn

1403-4. Adjusting the steering wheel and mirrors
COROLLA_TMMMS_TMMC_U (OM02494U)
WARNING
■Caution while driving
Do not adjust the steering wheel while driving.
Doing so may cause the driver to mishandle the vehicle and cause an acci-
dent, resulting in death or serious injury.
■After adjusting the steering wheel
Make sure that the steering wheel is securely locked.
Otherwise, the steering wheel may move suddenly, possibly causing an
accident, and resulting in death or serious injury. Also, the horn may not
sound if the steering wheel is not securely locked.

1604-1. Before driving
COROLLA_TMMMS_TMMC_U (OM02494U)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■If you hear a squealing or scraping noise (brake pad wear limit indica-
tors)
Have the brake pads checked and replaced by your Toyota dealer as soon
as possible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads
and/or those of the brake discs are exceeded.
■When the vehicle is stopped
●Do not race the engine.
If the vehicle is in any gear other than P (continuously variable transmis-
sion) or N, the vehicle may accelerate suddenly and unexpectedly, caus-
ing an accident.
●Vehicles with a continuously variable transmission: In order to prevent
accidents due to the vehicle rolling away, always keep depressing the
brake pedal while the engine is running, and apply the parking brake as
necessary.
●If the vehicle is stopped on an incline, in order to prevent accidents caused
by the vehicle rolling forward or backward, always depress the brake pedal
and securely apply the parking brake as needed.
●Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause
the exhaust system to overheat, which could result in a fire if combustible
material is nearby.
■When the vehicle is parked
●Do not leave glasses, cigarette lighters, spray cans, or soft drink cans in
the vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a
fire.
• The temperature inside the vehicle may cause the plastic lenses and
plastic material of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray over the
interior of the vehicle, and may also cause a short circuit in the vehicle’s
electrical components.

1624-1. Before driving
COROLLA_TMMMS_TMMC_U (OM02494U)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When braking
●When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause
one side of the vehicle to brake differently than the other side. Also, the
parking brake may not securely hold the vehicle.
●If the power brake assist function does not operate, do not follow other
vehicles closely and avoid hills or sharp turns that require braking.
In this case, braking is still possible, but the brake pedal should be
depressed more firmly than usual. Also, the braking distance will increase.
Have your brakes fixed immediately.
●Do not pump the brake pedal if the engine stalls.
Each push on the brake pedal uses up the reserve for the power-assisted
brakes.
●The brake system consists of 2 individual hydraulic systems; if one of the
systems fails, the other will still operate. In this case, the brake pedal
should be depressed more firmly than usual and the braking distance will
increase.
Have your brakes fixed immediately.
NOTICE
■When driving the vehicle (vehicles with a continuously variable trans-
mission)
●Do not depress the accelerator and brake pedals at the same time during
driving, as this may restrain the engine output.
●Do not use the accelerator pedal or depress the accelerator and brake
pedals at the same time to hold the vehicle on a hill.

1674-1. Before driving
4
Driving
COROLLA_TMMMS_TMMC_U (OM02494U)
WARNING
■Things that must not be carried in the trunk
The following things may cause a fire if loaded in the trunk:
●Receptacles containing gasoline
●Aerosol cans
■Storage precautions
Observe the following precautions.
Failure to do so may prevent the pedals from being depressed properly,
may block the driver’s vision, or may result in items hitting the driver or
passengers, possibly causing an accident.
●Stow cargo and luggage in the trunk whenever possible.
●To prevent cargo and luggage from sliding forward during braking, do
not stack anything in the enlarged trunk. Keep cargo and luggage low,
as close to the floor as possible.
●Do not place cargo or luggage in or on the following locations.
• At the feet of the driver
• On the front passenger or rear seats (when stacking items)
• On the package tray
• On the instrument panel
• On the dashboard
• Tray that has no lid
●Secure all items in the occupant compartment.
●When you fold down the rear seats, long items should not be placed
directly behind the front seats.
●Never allow anyone to ride in the enlarged trunk. It is not designed for
passengers. They should ride in their seats with their seat belts prop-
erly fastened.
■Capacity and distribution
●Do not exceed the maximum axle weight rating or the total vehicle
weight rating.
●Even if the total load of occupant's weight and the cargo load is less
than the total load capacity, do not apply the load unevenly. Improper
loading may cause deterioration of steering or braking control which
may cause death or serious injury.

1804-2. Driving procedures
COROLLA_TMMMS_TMMC_U (OM02494U)■Electronic key battery depletion
→P. 107
■Conditions affecting operation
→P. 127
■Notes for the entry function
→P. 128
■If the engine does not start
●The engine immobilizer system may not have been deactivated. (→P. 67)
Contact your Toyota dealer.
●Vehicles with a continuously variable transmission: Check that the shift lever
is securely set in P. The engine may not start if the shift lever is displaced
out of P.
“Shift to P position to Start” will be displayed on the multi-information dis-
play.
■Steering lock
After turning the engine switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function. Operating the
engine switch again automatically cancels the steering lock.
■When the steering lock cannot be released
Vehicles with a manual transmission: Press the engine switch while turning
the steering wheel left and right.
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the engine is turned on and off repeatedly in a short period of time.
In this case, refrain from operating the engine. After about 10 seconds, the
steering lock motor will resume functioning. “Steering Lock Active” will be displayed on
the multi-information display.
Vehicles with a continuously variable
transmission: Check that the shift lever is
set in P. Press the engine switch while
turning the steering wheel left and right.

2074-4. Refueling
4
Driving
COROLLA_TMMMS_TMMC_U (OM02494U)
Pull up the opener to open the
fuel filler door.
Turn the fuel tank cap slowly to
remove it and hang it on the
back of the fuel filler door.
WARNING
■When refueling
Observe the following precautions to prevent fuel overflowing from the fuel
tank:
●Securely insert the fuel nozzle into the fuel filler neck.
●Stop filling the tank after the fuel nozzle automatically clicks off.
●Do not top off the fuel tank.
NOTICE
■Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission control
system to operate abnormally or damaging fuel system components or the
vehicle’s painted surface.
Opening the fuel tank cap
1
2