ECU TOYOTA COROLLA 2002 E120 / 9.G Owner's Guide

’02 Corolla U (L/O 0105)
1862002 Corolla_U (OM12743U)
Ty p e A
Ty p e B
10. Reinstall the wheel ornament.1. Put the wheel ornament into position.
On some models, align the cutout of the
wheel ornament with the valve stem as
shown. 2. Then tap it firmly with the side or heel of your hand to snap it into place.
CAUTION
Take due care in handling the orna-
ment to avoid unexpected personal
injury.
11. Check the air pressure of the re- placed tire.
Adjust the air pressure to the specification
designed in Section 8. If the pressure is
lower, drive slowly to the nearest service
station and fill to the correct pressure.
Do not forget to reinstall the tire inflation
valve cap as dirt and moisture could get
into the valve core and possibly cause air
leakage. If the cap is missing, have a new
one put on as soon as possible.
12. Restow all the tools, jack and flat tire securely.
As soon after changing wheels as pos-
sible, tighten the wheel nuts to the torque
specified in Section 8 with a torque
wrench. Have a technician repair the flat
tire and replace the spare tire with it.
CAUTION
Before driving, make sure all the
tools, jack and flat tire are securely
in place in their storage location to
reduce the possibility of personal in-
jury during a collision or s udden
braking.
—Reinstalling wheel ornament —After changing wheels

’02 Corolla U (L/O 0105)
1892002 Corolla_U (OM12743U)
NOTICE
Only use specified towing eyelet;
otherwise your vehicle may be dam-
aged.
A driver must be in the vehicle to steer
it and operate the brakes.
Towing in this manner may be done only
on hardsurfaced roads for a short dis-
tance and at low speeds. Also, the
wheels, axles, drive train, steering and
brakes must all be in good condition.
CAUTION
Use extreme caution when towing ve-
hicles. Avoid sudden starts or erratic
driving maneuvers which would place
excessive stress on the emergency
towing eyelets and towing cable or
chain. The eyelets and towing cable
or chain may break and cause serious
injury or damage.
NOTICE
Use only a cable or chain specifically
intended for use in towing vehicles.
Securely fasten the cable or chain to
the towing eyelets provided.
Before towing, release the parking brake
and put the transmission in neutral (manu-
al) or “N” (automatic). The key must be
in “ACC” (engine off) or “ON” (engine run-
ning).
CAUTION
If the engine is not running, the pow-
er assist for the brakes and steering
will not work so steering and braking
will be much harder than usual.
If you cannot shift the selector lever
out of “P” position to other positions
even though the brake pedal is de-
pressed, use the shift lock override but-
ton as follows:1. Turn the ignition key to “LOCK” position. Make sure the parking
brake is applied.
2. Pry up the cover with a flatbladed screwdriver or equivalent.
If you cannot shift automatic
transmission selector lever

’02 Corolla U (L/O 0105)
2012002 Corolla_U (OM12743U)
If you are a skilled doityourself mechan-
ic, the Toyota service manuals are recom-
mended. Please be aware that doityour-
self maintenance can affect your warranty
coverage. See “Owner ’s Warranty Informa-
tion Booklet” or “Owner ’s Manual Supple-
ment” for the details.Listed below are the general maintenance
items that should be performed as fre-
quently as specified. In addition to check-
ing the items listed, if you notice any
unusual noise, smell or vibration, you
should investigate the cause or take your
vehicle to your Toyota dealer or a quali-
fied service shop immediately. It is recom-
mended that any problem you notice be
brought to the attention of your dealer or
the qualified service shop for their advice.
CAUTION
Make these checks only where ade-
quate ventilation can be obtained if
you run the engine.
OUTSIDE THE VEHICLE
Items listed below should be performed
from time to time, unless otherwise
specified.
Tire pressure
Check the pressure with a gauge every
two weeks, or at least once a month. See
Section 72 for additional information.Tire surface and wheel nuts
Check the tires carefully for cuts, damage
or excessive wear. See Section 72 for
additional information. When checking the
tires, make sure no nuts are missing, and
check the nuts for looseness. Tighten
them if necessary.
Tire rotation
Rotate the tires according to the mainte-
nance schedule. (For scheduled mainte-
nance information, please refer to the
“Scheduled Maintenance Guide” or “Own-
er ’s Manual Supplement”.) See Section
72 for additional information.
Fluid leaks
Check underneath for leaking fuel, oil, wa-
ter or other fluid after the vehicle has
been parked for a while. If you smell fuel
fumes or notice any leak, have the cause
found and corrected immediately.
Doors and engine hood
Check that all doors including trunk lid
operate smoothly and all latches lock se-
curely. Make sure the engine hood sec-
ondary latch secures the hood from open-
ing when the primary latch is released.
INSIDE THE VEHICLE
Items listed below should be checked
regularly, e.g. while performing periodic
services, cleaning the vehicle, etc.
General maintenance

’02 Corolla U (L/O 0105)
2022002 Corolla_U (OM12743U)
Lights
Make sure the headlights, stop lights, tail
lights, turn signal lights, and other lights
are all working. Check headlight aim.
Service reminder indicators and warning
buzzers
Check that all service reminder indicators
and warning buzzers function properly.
Steering wheel
Be alert for changes in steering condition,
such as hard steering or strange noise.
Seats
Check that all front seat controls such as
seat adjusters, seatback recliner, etc. op-
erate smoothly and that all latches lock
securely in any position. Check that the
head restraints move up and down
smoothly and that the locks hold securely
in any latched position. For foldingdown
rear seatbacks, check that the latches
lock securely.
Seat belts
Check that the seat belt system such as
buckles, retractors and anchors operate
properly and smoothly. Make sure that the
belt webbings are not cut, frayed, worn or
damaged.Accelerator pedal
Check the pedal for smooth operation and
uneven pedal effort or catching.
Clutch pedal
Check the pedal for smooth operation.
Brake pedal
Check the pedal for smooth operation and
that the pedal has the proper clearance.
Check the brake booster function.
Brakes
At a safe place, check that the brakes do
not pull to one side when applied.
Parking brake
Check that the lever has the proper travel
and that, on a safe incline, your vehicle
is held securely with only the parking
brake applied.
Automatic transmission “Park” mecha-
nism
Check the lock release button of the se-
lector lever for proper and smooth opera-
tion. On a safe incline, check that your
vehicle is held securely with the selector
lever in “P” position and all brakes re-
leased.
IN THE ENGINE COMPARTMENT
Items listed below should be checked
from time to time, e.g. each time when
refueling.
Washer fluid
Make sure there is sufficient fluid in the
tank. See Section 73 for additional in-
formation.
Engine coolant level
Make sure the coolant level is between
the “FULL” and “LOW” lines on the see
through reservoir when the engine is cold.
See Section 72 for additional information.
Battery electrolyte level
Make sure the electrolyte level of all bat-
tery cells is between upper and lower lev-
el lines on the case. Add only distilled
water when replenishing. See Section 73
for additional information.
Brake fluid level
Make sure the brake fluid level is correct.
See Section 72 for additional information.
Engine oil level
Check the level on the dipstick with the
engine turned off and the vehicle parked
on a level spot. See Section 72 for addi-
tional information.

’02 Corolla U (L/O 0105)
2462002 Corolla_U (OM12743U)
Engine compartment
13. DRL 7.5 A: Daytime running light sys-
tem
14. HEAD RHLWR 10 A: Righthand
headlight (low beam)
15. HEAD LHLWR 10 A: Lefthand head-
light (low beam)
16. CDS 30 A: Electric cooling fans
17. TURN 7.5 A: Turn signal lights, emer-
gency flashers
18. GAUGE 10 A: Gauge and meters,
buckup lights, air conditioning system,
power windows, rear window defogger,
power door lock system
Instrument panel
19. WIP 20 A: Windshield wipers and
washer
20. DEF IUP/MHTR 10 A: Rear window
defogger, multiport fuel injection sys-
tem/sequential multiport fuel injection
system
21. ECUIG 10 A: Starting system, electric
cooling fan, automatic transmission
shift lock system, antilock brake sys-
tem, cruise control system
22. IGN 7.5 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, charging system, SRS airbag
system, seat belt pretensi oners23. STOP 15 A:
Stop lights, high mounted
stoplight, antilock brake system, auto-
matic transmission shift lock system,
cruise control system, multiport fuel in-
jection system/sequential multiport fuel
injection system
24. TAIL 15 A: Tail lights, gauges and me-
ters, instrument panel light control, cig-
arette lighter, clock, car audio system,
rear window defogger, license plate
lights, electronically controlled automat-
ic transmission system, multiport fuel
injection system/sequential multiport
fuel injection system, air conditioning
system, emer gency flashers
25. OBD 7.5 A: Onboard diagnosis sys-
tem
26. ECUB 7.5 A: SRS airbag system,
seat belt pretensioners
27. ST 5 A: Starter system, multiport fuel
injection system/sequential multiport
fuel injection system
28. D/L 30 A: Power door lock system
29. FOG 15 A: Front fog lights
30. SHTR 15 A: No circuit

’02 Corolla U (L/O 0105)
2472002 Corolla_U (OM12743U)
31. CIG 15 A: Car audio system, clock,
cigarette lighter, power rear view mir-
rors, SRS airbag system, seat belt pre-
tensioners, automatic transmission shift
lock system
Fuses (type B)
32. HTR 50 A: Air conditioning system,
“A/C” fuse
33. MAIN 40 A: Starter system, “HEAD
(LH) or HEAD (LHUPR)”, “HEAD (RH)
or HEAD (RHUPR)”, “HEAD LHLWR”,
“HEAD RHLWR” and “DRL” fuses
34. RDI 30 A: Electric cooling fans
35. AM1 50 A: “CIG”, “TURN”, “GAUGE”,
“ECUIG” and “WIP” fuses
36. DEF 40 A: Rear window defogger,
“DEF IUP/MHTR” fuse
37. POWER 30 A: Power windows, electric
moon roof
Fuses (type C)
38. FL ABS 50 A: Antilock brake system
39. FL ALT 100 A: “RDI”, “CDS”, “AM1”,
“POWER”, “D/L”, “TAIL”, “OBD”, “FOG”,
“ECUB”, “STOP”, “DEF” and “HTR”
fuses