2000 TOYOTA ECHO sensor

ECHO_U
352000 ECHO (OM52411U)
SU13015
To connect the extender to the seat
belt, insert the tab into the seat belt
buckle so that the "PRESS" signs on
the buckle−release buttons of the ex-
tender and the seat belt are both facing
outward as shown.
You will hear a click when the tab locks
into the buckle.
When releasing the seat belt, press on
the buckle−release button on the extender,
not on the seat belt. This helps prevent
damage to the vehicle interior and extend-
er itself.
When not in use, remove the extender
and store in the vehicle for future use.
CAUTION
After inserting the tab, make sure
the tab and buckle are locked and
that the seat belt extender is not
twisted.
Do not insert coins, clips, etc. in
the buckle as this may prevent you
from properly latching the tab and
buckle.
If the seat belt does not function
normally, immediately contact your
Toyota dealer.
Front seat belt pretensioners
SY13021a
The driver and front passenger’s seat
belt pretensioners are designed to be
activated in response to a severe fron-
tal impact.
When the airbag sensor detects the shock
of a severe frontal impact, the front seat
belt is quickly drawn back in by the re-
tractor so that the belt snugly restrains
the front seat occupants.
The seat belt pretensioners are activated
even with no passenger in the front seat.
Collosions occurring at certain speeds and
angles may cause the seat belt preten-
sioners and SRS airbags not to operate
all together.

ECHO_U
362000 ECHO (OM52411U)
SU13017
This indicator comes on when the igni-
tion key is turned to the "ON" position.
It goes off after about 6 seconds. This
means the front seat belt pretensioners
are operating properly.
This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, seat belt pretensioner assemblies,
warning light, interconnecting wiring and
power sources. (For details, see "Service
reminder indicators and warning buzzers"
in Section 1−5.)
SU13018
The seat belt pretensioner system mainly
consists of the following components and
their locations are shown in the illustra-
tion.1. SRS warning light
2. Seat belt pretensioner assemblies
3. Airbag sensor assembly
4. Front airbag sensors
The seat belt pretensioner is controlled by
the airbag sensor assembly. The airbag
sensor assembly consists of a safing sen-
sor and airbag sensor. When a seat belt pretensioner is acti-
vated, an operating noise may be heard
and a small amount of smoke−like gas
may be released. This gas is harmless
and does not indicate that a fire is occur-
ring.
Once the seat belt pretensioner has been
activated, the seat belt retractor remains
locked.
CAUTION
Do not modify, remove, strike or open
the front seat belt pretensioner as-
semblies, airbag sensor or surround-
ing area or wiring. Doing any of
these may cause sudden operation of
the front seat belt pretensioners or
disable the system, which could re-
sult in serious injury.
Failure to follow these instructions
can result in serious injuries.

ECHO_U
382000 ECHO (OM52411U)
SY13024
The SRS (Supplemental Restraint Sys-
tem) airbags are designed to provide
further protection for the driver and
front passenger when added to the pri-
mary protection provided by the seat
belts.
In response to a severe frontal impact,
the SRS airbags work together with the
seat belts to help prevent or reduce injury
by inflating, in order to decrease the likeli-
hood of the driver ’s or front passenger ’s
head or chest directly hitting the steering
wheel or dashboard. The passenger airbag
is activated even with no passenger in the
front seat.
Be sure to wear your seat belt.
CAUTION
A driver or front passenger too close
to the steering wheel or dashboard
during airbag deployment can be
killed or seriously injured. Toyota
strongly recommends that:
The driver sit as far back as pos-
sible from the steering wheel while
still maintaining control of the ve-
hicle.
The front passenger sit as far back
as possible from the dashboard.
All vehicle occupants be properly
restrained using the available seat
belts.
SU13017
This indicator comes on when the igni-
tion key is turned to the "ON" position.
It goes off after about 6 seconds. This
means the SRS airbags are operating
properly.
This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, inflators, warning light, interconnect-
ing wiring and power sources. (For details,
see "Service reminder indicators and
warning buzzers" in Section 1−5.)
SRS driver and front
passenger airbags

ECHO_U
392000 ECHO (OM52411U)
SU13021
The SRS airbag system is designed to
activate in response to a severe frontal
impact within the shaded area between
the arrows in the illustration.
There may be the case that the SRS air-
bags will not activate with such an impact
in which the occupant wearing the seat
belt correctly would not get serious injury.
The SRS airbags will deploy if the severi-
ty of the impact is above the designed
threshold level, comparable to an approxi-
mate 25 km/h (15 mph) collision when
impacting straight into a fixed barrier that
does not move or deform.
If the severity of the impact is below the
above threshold level, the SRS airbags
may not deploy.However, this threshold velocity will be
considerably higher if the vehicle strikes
an object, such as a parked vehicle or
sign pole, which can move or deform on
impact, or if it is involved in an underride
collision (e.g. a collision in which the nose
of the vehicle "underrides", or goes under,
the bed of a truck, etc.).
It is possible with collision severity at the
marginal level of airbag sensor detection
and activation that only one of your ve-
hicle’s two airbags will deploy.
For the safety of all occupants, be sure
to always wear seat belts.
SU13022
Collision from the side
Vehicle rollover
Collision from the rear
The SRS airbags are not designed to
inflate if the vehicle is subjected to a
side or rear impact, if it rolls over, or
if it is involved in a low−speed frontal
collision.

ECHO_U
402000 ECHO (OM52411U)
SU13023
Hitting a curb,
edge of pavement
or hard materialFalling into or
jumping over a
deep hole
Landing hard or vehicle falling
The SRS airbags may deploy if a seri-
ous impact occurs to the underside of
your vehicle. Some examples are shown
in the illustration.
SU13024
The SRS airbag system mainly consists of
the following components and their loca-
tions are shown in the illustration. 1. SRS warning light
2. Airbag module for driver (airbag and inflator)
3. Airbag module for passenger (airbag and inflator)
4. Airbag sensor assembly
5. Front airbag sensors
The airbag sensor assembly consists of a
safing sensor and airbag sensor. In a severe frontal impact, sensors detect
deceleration and the system triggers the
airbag inflators. Then a chemical reaction
in the inflators momentarily fills the air-
bags with non−toxic gas to help restrain
the forward motion of the occupants.
When the airbags inflate, they produce a
fairly loud noise and release some smoke
and residue along with non−toxic gas. This
does not indicate a fire. This gas is nor-
mally harmless, however, for those who
have delicate skin, it may cause minor
skin irritation. Be sure to wash off any
residue as soon as possible to prevent
minor skin irritation.
Deployment of the airbags happens in a
fraction of a second, so the airbags must
inflate with considerable force. While the
system is desi
gned to reduce serious inju-
ries, it may also cause minor burns or
abrasions and swellings.
Parts of the airbag module (steering wheel
hub, dashboard) may be hot for several
minutes, but the airbags themselves will
not be hot. The airbags are designed to
inflate only once.

ECHO_U
442000 ECHO (OM52411U)
Do not modify or remove any wir-
ing. Do not modify, remove, strike
or open any components such as
the steering wheel pad, steering
wheel, column cover, front passen-
ger airbag cover, front passenger
airbag or airbag sensor assembly.
Doing any of these may cause sud-
den SRS airbag inflation or disable
the system, which could result in
death or serious injury.
Failure to follow these instructions
can result in death or serious inju-
ries.NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
SRS airbag system in some cases.
 Installation of electronic items such
as a mobile two−way radio, cassette
tape player or compact disc player
 Modification of the suspension sys-
tem
 Modification of the front end struc-
ture
 Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end
 Repairs made on or near the front
fenders, front end structure, con-
sole, steering column, steering
wheel or dashboard near the front
passenger airbag
SU13017
This SRS airbag system has a service
reminder indicator to inform the driver of
operating problems. If either of the
following conditions occurs, this indicates
a malfunction of the airbags. Contact your
Toyota dealer as soon as possible to
service the vehicle.
The light does not come on when the
ignition key is turned to the "ON" posi-
tion, or remains on.
The light comes on or flashes while
driving.

ECHO_U
732000 ECHO (OM52411U)
(m)Remove key.Key reminder
buzzer
(n) Turn off lights. Light reminder
buzzer
If the indicator or
buzzer comes on...
Do this.
(a) Brake System Warning Light
This light comes on in the following cases
when the ignition key is turned on.When the parking brake is applied...
When the brake fluid level is low...
Have your vehicle checked at your
Toyota dealer in the following cases:
The light does not come on even if the
parking brake is applied with the igni-
tion ON".
CAUTION
If the light does not go out even after
the parking brake is released during
the engine running, immediately stop
your vehicle at a safe place and con-
tact your Toyota dealer. In this case,
the brakes may not work properly and
your stopping distance will be longer.
Depress the brake pedal firmly.
(b) Driver’s Seat Belt Reminder Light and Buzzer
This light and buzzer remind you to
buckle up the driver’s seat belt.
Once the ignition key is turned to "ON" or
"START", the reminder light and buzzer
come on if the driver’s seat belt is not
fastened. Unless the driver fastens the
belt, the light stays on and the buzzer
stops after about 4 to 8 seconds.
(c) Front Passenger ’s Seat Belt Reminder Light
This light reminds you to buckle up the
front passenger ’s seat belt.
Once the ignition key is turned to "ON" or
"START", the reminder light comes on if
a passenger sits in the front passenger
seat and does not fasten the seat belt.
Unless the front passenger fastens the
belt, the light stays on. This light reminds
you to backle up, the front passenger ’s
seat belt.
If luggage load is placed on the front
passenger seat, depending on its weight
and how it is placed on the seat, built−in
sensors in the seat cushion may detect
the pressure, causing the reminder light to
come on.

ECHO_U
752000 ECHO (OM52411U)
The light does not come on with the
ignition key turned to ON", or remains
on.
The light comes on while driving.
If the light lit during driving goes out and
does not come on again, it is a normal
operation.
(i) Open Door Warning Light
This light remains on until all the doors
and back door are completely closed. (j) SRS Warning Light
This light will come on when the igni-
tion key is turned to the "ON" position.
After about 6 seconds, the light will go
off. This means the system of the air-
bag and front seat belt pretensioners
are operating properly.
The warning light system monitors the air-
bag sensor assemblies, front airbag sen-
sors, seat belt pretensioner assemblies,
inflators, warning light, interconnecting wir-
ing and power sources.
If either of the following conditions occurs,
this indicates a malfunction somewhere in
the parts monitored by the warning light
system. Contact your Toyota dealer as
soon as possible to service the vehicle.
The light does not come on when the
ignition key is turned to the "ON" posi-
tion or remains on.
The light comes on or flashes while
driving.(k) Low Windshield Washer Fluid Level
Warning Light
The light warns that the windshield washer
fluid level is too low. Add washer fluid at
your earliest opportunity. (For instructions,
see "Adding washer fluid" in Section 7−3.)
The light operates to warn that the engine
is almost overheating.
(l) High Engine Coolant Temperature Warning Light
The light operates to warn that the engine
is almost overheating.
The light will come on when the ignition
key is turned to the "ON" position. After
a few seconds, the light will go off.
If it flashes while you are driving, stop the
vehicle and check your engine. For de-
tailed instructions, see "If your vehicle
overheats" in Section 4.NOTICE
Continued driving with the light on
could result in engine overheating.
(m) Key Reminder Buzzer
This buzzer reminds you to remove the
key when you open the driver ’s door with
the ignition key in the "ACC" or "LOCK"
position.