2006 TOYOTA PRIUS ECU

374
CAUTION
Use extreme caution when towing ve-
hicles. Avoid sudden starts or erratic
driving maneuvers which would place
excessive stress on the emergency
towing eyelet and towing cable or
chain. The eyelet 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 eyelet provided.
Before towing, release the parking brake
and put the hybrid transaxle in “N”. The
hybrid system must be in the “IG−ON”
mode.
In the following cases, as the front wheels
might be locked by means of the parking
lock mechanism, your vehicle cannot be
towed by another vehicle using a rope.
Have your vehicle carried with the front
wheels or all the wheels raised.
If the parking mechanism fails.
If the 12 volt battery is discharged.
CAUTION
If the hybrid system is not running,
the power assist for the brakes and
steering will not work so steering and
braking will be much harder than usu-
al.
50p046a
1. Remove the towing eyelet as shown in the illustration.
—Installing towing eyelet

375
50p047a
2. Secure the towing eyelet to the hole onthe bumper by turning it clockwise.
50p048a
3. Tighten the towing eyelet securely bya wheel nut wrench.
CAUTION
When installing the eyelet on the ve-
hicle, be sure to tighten the eyelet
securely. If the eyelet is loose, it may
come off when being towed and re-
sult in death or serious injury.
You can purchase a new key at your
Toyota dealer if you can give them the
key number and master key.
Even if you lose only one key, contact
your Toyota dealer to make a new key. If
you lose all your master keys, you cannot
make new keys; the whole hybrid vehicle
immobilizer system must be replaced.
See the suggestion given in “Keys” on
page 20.
If your keys are locked in the vehicle and
you cannot get a duplicate, many Toyota
dealers can still open the door for you,
using their special tools. If you must
break a window to get in, we suggest
breaking the smallest side window be-
cause it is the least expensive to replace.
Be extremely cautious to avoid cuts from
the glass.
If you lose your keys

388
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
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 restraint move up and down smooth-
ly 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.
OUTSIDE THE VEHICLE
Items listed below should be performed
from time to time, unless otherwise
specified.
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 and trunk operate
smoothly and all latches lock securely.
Make sure the engine hood secondary
latch secures the hood from opening 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 405 for additional
information.

430
90p007b
Instrument panel
1. PWR 30 A: Power windows
2. DEF 40 A: Rear window defogger
3. M/HTR 15 A: Outside rear view mirror
heater
4. WIP 30 A: Windshield wiper
5. RR WIP 15 A: Rear wiper
6. WSH 20 A: Washer
7. ECUIG 7.5 A: Smart entry and start
system, power wi ndows, multi−informa-
tion display, electric power steering,
theft deterrent system
90p005b
Engine compartment
8. GAUGE 10 A: Gauge and meter, back −
up lights, emergency flasher, power
windows
9. OBD 7.5 A: On−board diagnosis sys-
tem
10. STOP 7.5 A: Stop lights
11. DOOR 25 A: Power door lock system
12. ACCB 25 A: “POWER OUTLET”,
“ACC” fuses
13. ECUB 15 A: Multi−information display,
power windows, air conditioning system
14. AM1 7.5 A: Hybrid system
90p008b
Luggage compartment
15. TAIL 10 A: Tail lights, license plates
light, parking lights
16. PANEL 7.5 A: Multi−information dis-
play, clock, audio system, instrument
panel lights
17. A/C (HTR) 10 A: Air conditioning sys-
tem
18. FR DOOR 20 A: Power windows
19. PWR OUTLET 15 A: Power outlet
20. ACC 7.5 A: Audio system, multi −infor-
mation display, clock
21. PWR OUTLET FR 15 A: Power outlet
Fuses

437
Occupant restraint sys-tems
Toyota encourages you and your
family to take the time to read
Section 2−2 of this Owner’s Manu-
al carefully. In terms of helping
you understand how you can re-
ceive the maximum benefit of the
occupant restraint systems this ve-
hicle provides, Section 2 −2 of this
Owner ’s Manual is the most im-
portant section for you and your
family to read.
Section 2 −2 describes the function
and operation concerning seats,
seat belts, SRS airbags and child
restraint systems of this vehicle
and some potential hazards you
should be aware of. These sys-
tems work together along with the
overall structure of this vehicle in
order to provide occupant restraint
in the event of a crash. The effect
of each system is enhanced when
it is used properly and together
with other systems. No single oc-
cupant restraint system can, by it-
self, provide you or your family
with the equal level of restraint
which these systems can provide
when used together. That is why it
is important for you and your fam-
ily to understand the purpose and
proper use of each of these sys-
tems and how they relate to each
other.
The purpose of all occupant re-
straint systems is to help reduce
the possibility of death or serious
injury in the event of a collision.
None of these systems, either in-
dividually or together, can ensure
that there is no injury in the event
of collision. However, the more
you know about these systems
and how to use them properly, the
greater your chances become of
surviving an accident without death
or serious injury.
Seat belts provide the primary re-
straint to all occupants of the ve-
hicle, and every occupant of the
vehicle should wear seat belts
properly at all times. Children
should always be secured in child
restraint systems that are ap-
propriate for their age and size.
SRS (Supplemental Restraint Sys-
tem) airbags are, as their names
imply, designed to work with, and
be supplemental to, seat belts and
are not substitutes for them. SRS
airbags can be very effective in
reducing the risk of head and
chest injuries by preventing con-
tact of the head and chest with
interior portions of the vehicle.

441
SRS airbag deployment data
 SRS airbag system diagnostic
data
If your vehicle is equipped with a
vehicle stability control (VSC) sys-
tem, its Electronic Control Unit
(ECU) may contain another EDR.
There are a variety of driving situ-
ations which include activating the
VSC under which the VSC EDR
will record certain information. The
VSC EDR may record some or all
of the following information:
 Behavior of the vehicle
 Steering wheel angle
 Vehicle speed
 To what extent the accelerator
pedal was depressed
 To what extent the brake ped-
al was applied
 To what extent the ECU con-
trolled the condition of the 4
wheels
 Vehicle stability control sys-
tem diagnostic data
The information above is intended
to be used for the purpose of im-
proving vehicle safety perfor-
mance. Unlike general data record-
ers, the EDR does not record
sound data such as conversation
between passengers.Toyota will not disclose the data
recorded in an EDR to a third
party except when:
 An agreement from the ve-
hicle’s owner (or the leasing
company for a leased vehicle)
is obtained
 Officially requested by the po-
lice or other authorities
 Used as a defence for Toyota
in a law suit
 Ordered by the court
However, if necessary Toyota will:
 Use the data for research on
Toyota vehicle safety perfor-
mance
 Disclose the data to a third
party for research purposes
without disclosing details of
the vehicle owner, and only
when it is deemed necessary
 Disclose summarized data
cleared of vehicle identifica-
tion information to a non −To -
yota organization for research
purposes