2002 TOYOTA AVALON ECU

’02 AVALON U (L/O 0107)
2422002 MY AVALON_U (OM22493U)
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 sudden
braking.
(a) Towing with wheel lift type truck—
—From rear
(b) Using flat bed truck —From front
If towing is necessary, we recommend
you to have it done by your Toyota
dealer or a commercial tow truck ser-
vice. In consultation with them, have
your vehicle towed using either (a) or
(b).
Only when you cannot receive a towing
service from a Toyota dealer or com-
mercial tow truck service, tow your ve-
hicle carefully in accordance with the
instructions given in “—Emergency tow-
ing” in this section.
Proper equipment will help ensure that
your vehicle is not damaged while being
towed. Commercial operators are generally
aware of the state/provincial and local
laws pertaining to towing.
Your vehicle can be damaged if it is
towed incorrectly. Although most operators
know the correct procedure, it is possible
to make a mistake. To avoid damage to
your vehicle, make sure the following pre-
cautions are observed. If necessary, show
this page to the tow truck driver.
If your vehicle needs to be
towed—

’02 AVALON U (L/O 0107)
2442002 MY AVALON_U (OM22493U)
If towing is necessary, we recommend
you to have it done by your Toyota
dealer or a commercial tow truck ser-
vice.
If towing service is not available in an
emergency, your vehicle may be tempo-
rarily towed by a cable or chain se-
cured to one of the emergency towing
eyelets under the vehicle. Use extreme
caution when towing vehicles.
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 hard−surfaced 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 “N”. The key
must be in “ACC” (engine off) or “ON”
(engine running).
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
(floor shift)

’02 AVALON U (L/O 0107)
2562002 MY AVALON_U (OM22493U)
What about doityourself maintenance?
Many of the maintenance items are easy
to do yourself if you have a little mechani-
cal ability and a few basic automotive
tools. Simple instructions for how to per-
form them are presented in Section 7.
If you are a skilled do−it−yourself mechan-
ic, the Toyota service manuals are recom-
mended. Please be aware that do −it−your-
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 7
−2 for additional information. Tire surface and wheel nuts
Check the tires carefully for cuts, damage
or excessive wear. See Section 7
−2 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
7 −2 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.
General maintenance

’02 AVALON U (L/O 0107)
2572002 MY AVALON_U (OM22493U)
INSIDE THE VEHICLE
Items listed below should be checked
regularly, e.g. while performing periodic
services, cleaning the vehicle, etc.
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
Check that it has the specified free play.
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.
Seat belts
Check that the seat belt system such as
buckles, retractors and anchors operate
properly and smoothly. Make sure the belt
webbing is not cut, frayed, worn or dam-
aged.Accelerator pedal
Check the pedal for smooth operation and
uneven pedal effort or catching.
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 pedal 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 7
−3 for additional infor-
mation.
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 7 −2 for additional information.
Radiator, condenser and hoses
Check that the front of the radiator and
condenser are clean and not blocked with
leaves, dirt, or insects. See in Section
7 −2 for additional information.
Battery electrolyte level
Your Toyota has a maintenance free bat-
tery. You do not have to add distilled wa-
ter. For longer life of the battery, however,
see Section 7 −3 for additional information.
Brake fluid level
Make sure the brake fluid level is correct.
See Section 7 −2 for additional information.

’02 AVALON U (L/O 0107)
2982002 MY AVALON_U (OM22493U)
Instrument panel
9. DCC 30 A: “DOME”, “ECU−B” and
“RADIO” fuses
10. SRS WRN 5 A: SRS warning light
11. HAZ 15 A: Turn signal lights
12. A/F 25 A: Air/Fuel sensor
13. DOOR NO.2 15 A: Power door lock
system
14. HORN 10 A: Horn, theft−deterrent sys-
tem
15. AM2 10 A: SRS airbag system, multi-
port fuel injection system/sequential
multiport fuel injection system, starter
system, charging system, air/fuel sen-
sor, fuel pump 16. EFI NO.2 7.5 A:
Multiport fuel injection
system/se quential multiport fuel injec-
tion system, air flow meter, oxygen
sensor, evaporative emission control
system, throttle positi oner control sys-
tem, engine control system
17. ABS NO.3 25 A: Anti−lock brake sys-
tem
18. ABS NO.2 25 A: Vehicle skid control
system
19. EFI NO.1 15 A: Multiport fuel injection
system/se quential multiport fuel injec-
tion system, fuel pump
20. IG2 15 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system
21. HEAD RH UPR 10 A: No circuit
22. HEAD LH UPR 10 A: No circuit
23. HEAD RH LWR 15 A: Right−hand
headlight (low beam)
24. HEAD LH LWR 15 A: Left−hand head-
light (low beam)
25. DRL 7.5 A: Daytime running light sys-
tem
26. HEAD LH UPR 10 A: Left−hand head-
light (high beam), high beam indicator
light 27. HEAD RH UPR 10 A:
Right−hand
headlight (high beam)
28. ECUIG NO.1 5 A: Electric cooling
fans
29. ECUB 7.5 A: Air conditioning system,
theft deterrent system, power seats,
meters, power windows (for driver and
front passenger), multiplex communica-
tion system
30. TAIL 10 A: Parking lights, license plate
lights, tail lights, rear side marker
lights, rear light failure warning light,
engine control system
31. SEAT HTR 20 A: Seat heaters
32. FR P/W 20 A: Power window (for front
passenger)
33. GAUGE NO.1 10 A: Vehicle skid con-
trol system, rear window defogger,
cruise control system, shift lock sys-
tem, anti− lock brake system, auto anti −
gl

are inside rear view mirror, automatic
light control system, power seats, rear
light failure warning light, automatic
transmission indicator lights, power out-
let, power window (for driver), brake
system warning light, electric moon
roof
34. HTR 10 A: Air conditioning system
35. FOG 15 A: Front fog lights

’02 AVALON U (L/O 0107)
2992002 MY AVALON_U (OM22493U)
36. TURN 7.5 A: Turn signal lights
37. A/C 10 A: Air conditioning system
38. RADIO 15 A: Audio system, multi −in-
formation display
39. PANEL 5 A: Gauges and meters, audio
system, cigarette lighter, air condition-
ing system, emergency flasher, elec-
tronically controlled automatic transmis-
sion system, power rear view mirrors,
multi −information display, glove box
light, instrument panel lights, instrument
panel light control, power outlet
40. FL P/W 25 A: Power window (for driv-
er)
41. PWR OUTLET NO.1 15 A: Power out-
let (ACC)
42. ECUACC 5 A: Audio system, power
rear view mirrors, multi −information dis-
play, shift lock system, multiplex com-
munication system
43. SRSACC 10 A: SRS airbag system
44. MIR HTR 10 A: Outside rear view mir-
ror defoggers, engine control system
45. PWR OUTLET NO.2 15 A: Power out-
let (IG)
46. GAUGE NO.2 10 A: Back−up lights
47. OBDII 7.5 A: On−board diagnosis sys-
tem 48. STOP 15 A:
Stop lights, high mounted
stoplight, anti −lock brake system, shift
lock system, cruise control system, ve-
hicle skid control system, engine con-
trol system
49. DOME 7.5 A: Interior light, front per-
sonal lights, door courtesy lights, igni-
tion switch light, vanity lights, garage
door opener, open door warning light,
illuminated entry system, rear personal
lights, automatic light control system,
trunk light, wireless remote control sys-
tem, multiplex communication system
50. OPNER 5 A: No circuit
51. RL P/W 20 A: Power window (for rear
left passenger)
52. RR P/W 20 A: Power window (for rear
right passenger)
53. WIP 25 A: Windshield wipers and
washer
54. ECUIG NO.2 10 A: Anti−lock brake
system, cruise control system, multi −in-
formation display, theft deterrent sys-
tem, vehicle skid control system, me-
ters, multiplex communication system
55. CIG 15 A: Cigarette lighter
56. DOOR NO.1 25 A: Theft deterrent sys-
tem, trunk opener, multiplex commu-
nication system 57. SUN ROOF 30 A:
Electric moon roof
Fuses (type B)
58. AM1 40 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system
59. HTR 50 A: Air conditioning system
60. CDS 30 A: Electric cooling fans
61. RDI 30 A: Electric cooling fans
62. MAIN 40 A: St
arter system
63. DEF 40 A: Rear window defogger,
noise filter
64. PWR SEAT 30 A: Power seats
Fuses (type C)
65. ABS 60 A: Anti−lock brake system,
“ABS NO.4” fuse
66. ALT 120 A: “HTR”, “A/C”, “ABS NO.2”,
“ABS NO.3”, “RDI”, “CDS”, “AM1”,
“ABS” and “ABS NO.4” fuses