check engine TOYOTA 86 2020 Service Manual

335
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine coolant
The coolant level is satisfactory if it is between the “FULL” a nd “LOW”
lines on the reservoir w hen the engine is cold.
Reservoir cap
“FULL”
“LOW”
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■ When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
● Avoid overfilling, or the engine could be damaged.
● Check the oil level on the dipstick every time you refill the vehicle.
● Be sure the engine oil filler cap is properly tightened.
■If the coolant level drops within a short time after replenishi ng
Visually check the radiator, hoses, engine coolant filler cap, radiator cap,
drain cock and water pump.
If you cannot find a leak, have your Toyota dealer pressure test the cap and
check for leaks in the cooling system.

337
4-3. Do-it-yourself maintenance
4
Maintenance and care
Radiator and condenser
Check the radiator and condenser and clear away any foreign
objects.
If either of the above parts are extremely dirty or you are not sure of
their condition, have your vehicle checked by your Toyota dealer.
Brake fluid
■ Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
“MAX”
“MIN”
WARNING
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.

343
4-3. Do-it-yourself maintenance
4
Maintenance and care
Washer fluid
If the washer fluid level is at
“LOW”, add washer fluid.
NOTICE
■When recharging the battery
Never recharge the battery while the engine is running. Also, b e sure all
accessories are turned off.
■ When adding distilled water
Avoid overfilling. Water spilled during battery recharging may cause corro-
sion.
■ Using the gauge
The washer fluid level can be checked by
observing the position of the level on the
liquid-covered holes in the gauge.
If the level falls below the second hole
from the bottom (the “LOW” position),
refill the washer fluid.
CTH43AS134
Current
fluid level

367
4-3. Do-it-yourself maintenance
4
Maintenance and care
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessar y.
Vehicles without a smart key system
Turn the engine switch off.
Vehicles with a smart key system
Turn the “ENGINE START STOP” switch off.
Open the fuse box cover.
Engine compartment Push the tabs in and lift the lid
off.
Instrument panel Remove the lid.STEP 1
STEP 2

404 5-2. Steps to take in an emergency
■If the tire pressure warning system is inoperative
The tire pressure warning system will be disabled in the follow ing condi-
tions:
(When the condition becomes normal, the system will work proper ly.)
●If tires not equipped with tire pressure warning valves and transmit-
ters are used.
●If the ID code on the tire pressure warning valves and transmit ters is
not registered in the tire pressure warning computer.
●If the tire inflation pressure i s 55 psi (380 kPa, 3.87 kgf/cm2 or bar) or
higher.
The tire pressure warning system may be disabled in the following condi-
tions:
(When the condition becomes normal, the system will work proper ly.)
●If electronic devices or facilities using similar radio wave frequencies
are nearby.
●If a radio set at similar frequen cies is in use in the vehicle.
●If a window tint that affects the radio wave signals is install ed.
●If there is a lot of snow or ice on the vehicle, in particular around the
wheels or wheel housings.
●If non-genuine Toyota wheels are used. (Even if you use Toyota
wheels, the tire pressure warning system may not work properly with
some types of tires.)
●If tire chains are used.
●If a large metallic object which can interfere with signal reception is
put in the trunk.
■If the tire pressure warning light frequently comes on after bl inking
for approximately one minute
If the tire pressure warning light frequently comes on after bl inking for
approximately one minute when the “ENGINE START STOP” switch is
turned to IGNITION ON mode (vehicles with a smart key system) o r the
engine switch is turned to the “ON” position (vehicles without a smart key
system), have it checked your Toyota dealer.

414 5-2. Steps to take in an emergency
Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected probl em,
check that the warning me ssage and light go off.
Interior
buzzerExterior
buzzerWarning messageDetailsCorrection procedure
Once 
(Flashes)
(Flashes in yellow)
Indicates that the
electronic key is
not present when
attempting to
start the engine. Confirm
the loca-
tion of the
electronic
key.
Once
3 times
(Flashes)
(Flashes in yellow)
Indicates that a
door other than
the driver’s door
has been opened
and closed with
the “ENGINE
START STOP”
switch in any
mode other than
off and the elec-
tronic key out-
side of the
detection area. Confirm
the loca-
tion of the
electronic
key.

432 5-2. Steps to take in an emergency
WARNING
■Using the tire jack
Improper use of the tire jack may lead to death or serious injuries due to
the vehicle suddenly falling off the jack.
●Do not use the tire jack for any purpose other than replacing t ires or
installing and removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat
tire.
Do not use it on other vehicles, and do not use other tire jack s for
replacing tires on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not put any part of your body under the vehicle supported by a jack.
●Do not start or run the engine while your vehicle is supported by the
jack.
●When raising the vehicle, make sure that no one is in the vehic le and
unload all luggage from the vehicle.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greater than that required to
replace the tire.
●Use a jack stand if it is neces sary to get under the vehicle.
Take particular care when lowering the vehicle to ensure that n o one
working on or near the v ehicle may be injured.

5
When trouble arises
437
5-2. Steps to take in an emergency
Emergency start function (vehicles with a smart key system)
When the engine does not start, the following steps can be used
as
an interim measure to start the engine if the “ENGINE START STO P”
switch is functioning normally:
Vehicles with an automatic transmission
Set the parking brake.
Put the shift lever in P.
Set the “ENGINE START STOP” switch to ACCESSORY
mode.
Press and hold the “ENGINE START STOP” switch about 15
seconds while depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the sy stem
may be malfunctioning. Have the vehicle checked by your Toyota
dealer.
■ The starter motor does not turn over, the interior lights and
headlights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
● One or both of the battery ter minals may be disconnected.
● The battery may be discharged. ( P. 445)
● There may be a malfunction in the steering lock system. (vehi-
cles with a smart key system)
Contact your Toyota dealer if the problem cannot be repaired, o r if
repair procedures are unknown.
STEP 1
STEP 2
STEP 3
STEP 4

438 5-2. Steps to take in an emergency
Vehicles with a manual transmissionSet the parking brake.
Put the shift lever in N.
Turn the “ENGINE START STOP” switch to ACCESSORY
mode.
Push and hold the “ENGINE START STOP” switch for about
15 seconds while depressing the brake pedal and clutch
pedal firmly.
Even if the engine can be started using the above steps, the system
may be malfunctioning. Have the vehicle checked by your Toyota
dealer.
STEP 1
STEP 2
STEP 3
STEP 4

442 5-2. Steps to take in an emergency
Starting the engineVehicles with an automatic transmission Ensure that the shift lever is in P and firmly depress the brake
pedal.
Touch the Toyota emblem side of
the electronic key to the
“ENGINE START STOP” switch.
When the electronic key is
detected, a buzzer sounds and
the “ENGINE START STOP”
switch will turn to IGNITION ON
mode.
When the smart key system is
deactivated in customization set-
ting, the “ENGINE START STOP”
switch will turn to ACCESSORY
mode.
Firmly depress the brake pedal and check that the smart key
system indicator light (green) turns on.
Press the “ENGINE START STOP” switch.
In the event that the “ENGINE START STOP” switch still cannot b e
operated, contact your Toyota dealer.
STEP 1
STEP 2
STEP 3
STEP 4