2019 TOYOTA 86 ECU

3404-3. Do-it-yourself maintenance
■ Adding distilled water
Remove the vent plug.
Add distilled water. If the “UPPER LEVEL” line cannot be seen, check the fluid level by
looking directly at the cell.
Put the vent plug back on and close securely. Low O.K.
■ Before recharging
When recharging, the battery produces hydrogen gas which is fla mmable
and explosive. Therefore, before recharging:
● If recharging with the battery installed on the vehicle, be sur e to discon-
nect the ground cable.
● Make sure the power switch on the charger is off when connectin g and
disconnecting the charger cables to the battery. STEP 1
STEP 2
STEP 3

3714-3. Do-it-yourself maintenance
4
Maintenance and care 16
SPARE See note. Spare fuse17
SPARE See note. Spare fuse18
SPARE See note. Spare fuse19
SPARE See note. Spare fuse20
SPARE See note. Spare fuse21
ST 7.5 A Starting system22
ALT-S 7.5 A Charging system23
(STR LOCK) 7.5 A Steering lock system24
D/L 20 A Power door lock25
ETCS 15 A Engine control unit26
(AT+B) 7.5 A Transmission
27
(AM2 NO. 2) 7.5 A Smart key system
28
EFI (CTRL) 15 A Engine control unit
29
EFI (HTR) 15 A Multiport fuel injection system/
sequential multiport fuel injection
system
30
EFI (IGN) 15 A Starting system
31
EFI (+B) 7.5 A Engine control unit
32
HAZ 15 A Turn signal lights, emergency
flashers
33
MPX-B 7.5 A Automatic air conditioning system,
gauge and meters
34
F/PMP 20 A Multiport fuel injection system/
sequential multiport fuel injection
system
35
IG2 MAIN 30 A SRS airbag system, engine control
unit
36
DCC 30 A Interior light, wireless remote con-
trol, main body ECUFuse Ampere Circuit

3724-3. Do-it-yourself maintenance
Note
One of each of the following spare fuses are provided: 7.5 A, 10 A, 15
A, 20 A, 25 A, 30 A. 37
HORN NO. 2 7.5 A Horn38
HORN NO. 1 7.5 A Horn39
H-LP LH LO 15 A Left-hand headlight (low beam)40
H-LP RH LO 15 A Right-hand headlight (low beam)41
H-LP LH HI 10 A Left-hand headlight (high beam)42
H-LP RH HI 10 A Right-hand headlight (high beam)
43
INJ 30 A Multiport fuel injection system/
sequential multiport fuel injection
system44
H-LP WASHER 30 A
45
AM2 NO. 1 40 A Starting system, engine control unit
46
EPS 80 A Electric power steering
47
A/B MAIN 15 A SRS airbag system
48
ECU-B 7.5 A Wireless remote control, main body
ECU
49
DOME 20 A Interior light
50
IG2 7.5 A Engine control unitFuse Ampere Circuit

3734-3. Do-it-yourself maintenance
4
Maintenance and care ■ Instrument panel
Fuse Ampere Circuit1
ECU ACC 10 A Main body ECU, outside rear view
mirrors2
P/POINT No.2 15 A Power outlet3
PANEL 10 A Illumination4
TAIL 10 A Tail lights5
DRL 10 A Daytime running light system6
UNIT IG1 10 A Inside rear view mirror7
STOP 7.5 A Stop lights8
OBD 7.5 A On-board diagnosis system9
HEATER-S 7.5 A Air conditioning system
10
HEATER 10 A Air conditioning system
11
FR FOG LH 10 A Left-hand front fog light
12
FR FOG RH 10 A Right-hand front fog light
13
BK/UP LP 7.5 A Back-up lights
14
ECU IG1 10 A ABS, electric power steering
15
AM1 7.5 A Starting system
16
AMP 15 A Audio system
17
AT UNIT 15 A Transmission
18
GAUGE 7.5 A Gauge and meters, smart key sys-
tem
19
ECU IG2 10 A Engine control unit
20
SEAT HTR LH 10 A Left-hand seat heater
21
SEAT HTR RH 10 A Right-hand seat heater
22
RADIO 7.5 A Audio system
23
P/POINT No.1 15 A Power outlet

3814-3. Do-it-yourself maintenance
4
Maintenance and care WARNING■ Replacing light bulbs
● Turn off the lights. Do not attempt to replace the bulb immedia tely 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 hand s. When it is
unavoidable to hold the glass portion, use and hold with a clea n dry cloth
to avoid getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or c rack.
● Fully install the light bulbs and any parts used to secure them . Failure to
do so may result in heat damage, fire, or water entering a light unit. This
may damage the light or cause condensation to build up on the i nner side
of the lens.
■ When changing the back-up lights
Stop the engine and wait until the exhaust pipes have cooled do wn suffi-
ciently. The lights are located near the exhaust pipe and touching a hot
exhaust pipe can cause burns.
■ To prevent damage or fire
Make sure bulbs are fully seated and locked.

5
When trouble arises
3855-1. Essential information
If your vehicle needs to be towed
Before towing
The following may indicate a problem with your transmission. Co ntact
your Toyota dealer before towing.
● The engine is running, but t he vehicle will not move.
● The vehicle makes an abnormal sound.
Emergency towing
If a tow truck is not available in an emergency, your vehicle m ay be
temporarily towed using a cable or chain secured to the emergen cy
towing eyelet. This should only be attempted on hard surfaced r oads
for short distances at low speeds.
A driver must be in the vehicle to steer and operate the brakes . The
vehicle’s wheels, drive train, axles, steering and brakes must be in
good condition.
For vehicles with an automatic transmission, only the front tow ing
eyelet may be used. If towing is necessary, we recommen d having your vehicle towed by
your Toyota dealer or a commerci al towing service, using a lift -type
truck or a flat bed truck.
Use a safety chain system for all towing, and abide by all stat e/pro-
vincial and local laws.
If towing from the rear, the vehicle's front wheels and axles m ust be
in good condition. (  P. 391)
If they are damaged, use a to wing dolly or flat bed truck.

5
When trouble arises
3895-1. Essential information
Insert the towing eyelet into the
hole and tighten partially by
hand.
Tighten down the towing eyelet
securely using a wheel nut
wrench.STEP 2
STEP 3
■ Location of the eme rgency towing eyelet
 P. 424
WARNING
■ Installing towing eyelets to the vehicle
Make sure that towing eyelet is installed securely.
If not securely installed, towing eyelets may come loose during towing. This
may lead to accidents that cause serious injury or even death.
■ After towing
● Always remove the towing eyelet. Failure to do so can cause the SRS air-
bags to not operate correctly in the event of a frontal collisi on.
● Always remove the towing eyelets. Failure to do so may prevent the fuel
pump shut off system from operating properly if the vehicle receives an
impact from the rear.

3985-2. Steps to take in an emergency
(Comes on in
yellow) Cruise control indicator light
Indicates a malfunction in the cruise control system.
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Toyota dealer as soon as possible.
■ SRS warning light
 P. 125
■ Electric power steering warning light (warning buzzer)
The electric power steering warning light may come on and the w arning
buzzer may sound when the voltage is low or the voltage drops.
WARNING
■ When the electric power steer ing warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating , hold
firmly and operate using more force than usual.Warning light Warning light/Details