2007 TOYOTA AVALON ECU

327
CAUTION
Never use oil or grease on the
bolts or nuts. Doing so may lead
to overtightening the nuts and
damaging the bolts. The nuts
may loose and the wheels may
fall off, which could cause a seri-
ous accident. If there is oil or
grease on any bolt or nut, clean
it.
9. Lower the vehicle completelyand tighten the wheel nuts.
Turn the jack handle counterclock-
wise to lower the vehicle.
Use only the wheel nut wrench and
turn it clockwise to tighten the nuts.
Do not use other tools or any addition-
al leverage other than your hands,
such as a hammer, pipe or your foot.
Make sure the wrench is securely en-
gaged over the nut.
Tighten each nut a little at a time in
the order shown. Repeat the process
until all the nuts are tight.
CAUTION
 When lowering the vehicle,
make sure all portions of your
body and all other persons
around will not be injured as
the vehicle is lowered to the
ground.
 Have the wheel nuts tightened
with torque wrench to 103 N·m
(10.5 kgf·m, 76 ft·lbf), as soon
as possible after changing
wheels. Otherwise, the nuts
may loosen and the wheels
may fall off, which could cause
a serious accident.
—Lowering your vehicle

328
10.Reinstall the wheel ornament.
Align the cutout of the wheel orna-
ment with the valve stem as shown.
Then press hand firmly on one side
of wheel ornament and then firmly tap
the other side around the edge of
wheel ornament with the heel of your
hand to snap into place.
CAUTION
Take due care in handling the
ornament to avoid unexpected
personal injury.
 Do not attach a heavily dam-
aged plastic wheel ornament.
It may fly off the wheel and
cause accidents while the ve-
hicle is moving.
11. Check the air pressure of the re-
placed tire.
Adjust the air pressu re to the specifi-
cation designated on page 386 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 infla-
tion valve cap as dirt and moisture
could get into th e 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
possible, tighten the wheel nuts to the
torque specified on page 386 in Sec-
tion 8 with a torque wrench. Have a
technician repair the flat tire and re-
place the spare tire with it.
—Reinstalling wheel ornament
(on some models) —After changing wheels

344
Exhaust system
If you notice any change in the sound of
the exhaust or smell exhaust fumes, have
the cause located and corrected immedi-
ately. (See “Engine exhaust cautions” on
page 270 in Section 2.)
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
In 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.
OUTSIDE THE VEHICLE
Items listed below should be performed
from time to time, unless otherwise
specified.
Wiper blades
Check for wear or cracks whenever they
do not wipe cleanly. See page 375 in
Section 7
−3 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.
Tire inflation pressure
Check the pressure with a gauge ev-
ery two weeks, or at least once a
month. See page 361 in Section 7 −2
for additional information.

387
Engine compartment
Instrument panel
Fuses (type A)1. EFI NO.2 10 A: Multiport fuel injection
system/se quential multiport fuel injec-
tion system
2. STOP NO.2 7.5 A: Stop lights, high
mounted stoplight, vehicle stability con-
trol system, anti −lock brake system
3. RADAR CC 7.5 A: Vehicle stability
control system
4. HEAD RH LWR 15 A: Right−hand
headlight (low beam)
5. HEAD LH LWR 15 A: Left−hand head-
light (low beam) 6. INJ 15 A:
Multiport fuel injection sys-
tem/sequential multiport fuel injection
system
7. STOP NO.1 15 A: Multiplex commu-
nication system
8. STR LOCK 25 A: Steering lock system
9. IMMOBI 7.5 A: Smart key system
10. AMP 30 A: Audio system
11. TURN/HAZ 15 A: Turn signal lights
12. IG2 25 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system
13. ETCS 10 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system
14. ALTS 7.5 A: Charging system
15. DOOR NO.1 25 A: Multiplex commu-
nication system
16. AM2 7.5 A: Starter system
17. RAD NO.1 15 A: Audio system, center
display, navigation system
18. ECUB 10 A: Center display, multiplex
communication system
Fuses

388
19. DOME 7.5 A: Gauges and meters,
clock, front personal lights, door cour-
tesy lights, garage door opener, rear
personal lights, trunk light
20. SHORN 7.5 A: Horn
21. WASHER 20 A: Windshield washer
22. A/F 25 A: Air fuel ratio sensor
23. HEAD RH UPR 15 A: Right−hand
headlight (high beam)
24. HEAD LH UPR 15 A: Left−hand head-
light (high beam)
25. HORN 10 A: Horn
26. EFI NO.1 25 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system, fuel pump
27. RR DOOR 25 A: Power window (for
rear right passenger)
28. RL DOOR 25 A: Power window (for
rear left passenger)
29. FR DOOR 25 A: Power window (front
passenger), driving position memory
system
30. FOG 15 A: Front fog lights
31. OBD 7.5 A: On−board diagnosis sys-
tem
32. MPXB 7.5 A: Multiplex communication
system 33. P/W 25 A:
Power window, driving posi-
tion memory system
34. FUEL OPN 7.5 A: Fuel filler door
opener
35. AM1 7.5 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, starting system, ignition sys-
tem
36. A/C 7.5 A: Air conditioning system
37. DOOR NO.2 25 A: Multiplex commu-
nication system
38. S/ROOF 30 A: Electric moon roof
39. TAIL 10 A: Parking lights, license plate
lights, tail lights, front and rear side
marker lights
40. PANEL 7.5 A: Seat heaters, navigation
system, emer gency flasher, electroni-
cally controlled automatic transmission
system, glove box light, instrument
panel lights, power outlets
41. ECU IG NO.1 10 A: Center display,
shift lock control system, electric moon
roof, multiplex communication system
42. ECU IG NO.2 10 A: Anti−lock brake
system, dynamic laser cruise control
system, automatic headlight leveling
system, vehicle stability control system,
multiplex communication system 43. HTR 7.5 A:
Air conditioning system,
instrument panel lights, electric cooling
fan
44. A/C COMP 7.5 A: Air conditioning sys-
tem
45. SHTR 20 A: Air conditioning system
46. GAUGE NO.1 10 A: Back−up lights,
navigation system, emergency flashers
47. WIP 30 A: Windshield wipers
48. RR S/SHADE 10 A: Rear electric sun-
shade
49. IGN 10 A: Multiport fuel injection sys-
t

em/sequential multiport fuel injection
system, SRS airbag system, front pas-
senger occupant classification system,
smart key system, starter system
50. GAUGE NO.2 7.5 A: Gauges and me-
ters, center display
51. ECUACC 7.5 A: Power rear view mir-
rors, center display, shift lock system,
multiplex communication system
52. CIG 15 A: Cigarette lighter
53. PWR OUTLET 15 A: Power outlets
54. RADIO NO.2 7.5 A: Audio system,
navigation system
55. MIR HTR 10 A: Outside rear view mir-
ror defoggers