2003 TOYOTA LAND CRUISER wiring

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CAUTION
Make sure the roll sensing of cur-
tain shield airbags off indicator
light is not on.
When the roll sensing of curtain
shield airbags off switch is turned
on (and the roll sensing of curtain
shield airbags off indicator light is
on), the seat belt pretensioners will
not operate in a vehicle rollover
and turning off the seat belt preten-
sioners can reduce the occupant
protection which your vehicle safety
systems can provide to you in cer-
tain accidents and increase the like-
lihood of death or serious injuries.
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, side and curtain shield airbag sensor
assemblies, curtain shield airbag sensor
assemblies, driver ’s seat position sensor,
driver ’s seat belt buckle switch, front seat
belt pretensioner assemblies, inflators,
warning light, interconnecting wiring and
power sources. (For details, see ”Service
reminder indicators and warning buzzers”
on page 118.)The front seat belt pretensioner system
mainly consists of the following compo-
nents, and their locations are shown in
the illustration.1. Front airbag sensors
2. SRS warning light
3. Seat belt pretensioner assemblies
4. Airbag sensor assembly
The front seat belt pretensioners are con-
trolled by the airbag sensor assembly. The
airbag sensor assembly consists of a saf-
ing sensor and airbag sensor.

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When the front seat belt pretensioners are
activated, an operating noise may be
heard and a small amount of smokelike
gas may be released. This gas is harm-
less and does not indicate that a fire is
occurring.
Once the front seat belt pretensioners
have been activated, the seat belt retrac-
tors remain locked.
CAUTION
Do not modify, remove, strike or
open the front seat belt pretension-
er assemblies, airbag sensor or sur-
rounding area or wiring. Doing any
of these may cause sudden opera-
tion of the front seat belt preten-
sioners or disable the system,
which could result in death or seri-
ous injury.
Do not use tires or wheels other
than the manufacturer ’s recom-
mended size. Such a use may cause
the curtain shield airbags and seat
belt pretensioners to inflate acci-
dentally, which could result in death
or serious injury. For details, see
”Checking and replacing tires” on
page 275.
Do not place luggage heavier than
specified on the roof luggage carri-
er. Such luggage may cause the
curtain shield airbags and seat belt
pretensioners to inflate accidentally,
which could result in death or seri-
ous injury. For details, see ”Roof
luggage carrier” on page 188.
Do not modify or change the sus-
pension system. Such changes may
cause the curtain shield airbags to
inflate accidentally, which could re-
sult in death or serious injury.
Failure to follow these instructions
can result in death or serious inju-
ries. Consult your Toyota dealer be-
fore performing any repairs and modi-
fications.
NOTICE
Do not perform any of the following
changes without first consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
front seat belt pretensioners in some
cases.
 Installation of electronic devices
such as a mobile twoway radio,
cassette tape player or compact
disc player
 Repairs on or near the front seat
belt retractor assemblies
 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 or con-
sole

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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 side and curtain shield
airbags are operating properly.
This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sensor
assemblies, curtain shield airbag sensor
assemblies, driver ’s seat position sensor,
driver ’s seat belt buckle switch, front seat
belt pretensioner assemblies, inflators,
warning light, interconnecting wiring and
power sources. (For details, see ”Service
reminder indicators and warning buzzers”
on page 118.)The SRS side airbags may not inflate if
the vehicle is subjected to a collision
from the side at certain angles, or a
collision to the side of the vehicle body
other than the passenger compartment
as shown in the illustration.
The SRS side airbags are designed to
inflate when the passenger compartment
area suffers a severe impact from the
side.
For the safety of all occupants, always
wear your seat belts properly.
Collision from the rear
Collision from the front Vehicle rollover
The SRS side airbags are not designed
to inflate if the vehicle is involved in a
front or rear collision, if it rolls over,
or if it is involved in a lowspeed side
collision.

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(h) 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 assembly, front airbag sen-
sors, side and curtain shield airbag sensor
assemblies, curtain shield airbag sensor
assemblies, driver ’s seat position sensor,
driver ’s seat belt buckle switch, front seat
belt pretensioner assemblies, inflators,
warning light, interconnecting wiring and
power sources.
If either of the following conditions occurs,
this indicates a malfunction somewhere in
the components monitored by the warning
light system. Contact your Toyota dealer
as soon as possible to service the ve-
hicle.
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.If the light stays on, it indicates that the
driver and passenger airbags have a prob-
lem. If the light flashes, the side and cur-
tain shield airbags and/or the seat belt
pretensioners have a problem.
(i) ”ABS” Warning Light
The light comes on when the ignition
key is turned to the “ON” position. If
the antilock brake system and the
brake assist system work properly, the
light turns off after a few seconds.
Thereafter, if either of the systems mal-
functions, the light comes on again.
When the “ABS” warning light is on (and
the brake system warning light is off), the
antilock brake system, the brake assist
system, the vehicle skid control system
and/or active traction control system do/
does not operate, but the brake system
still operates conventionally.
When the “ABS” warning light is on (and
the brake system warning light is off), the
antilock brake system does not operate
so that the wheels could lock up during
a sudden braking or braking on slippery
road surfaces.
If either of the following conditions oc-
curs, this indicates a malfunction some-
where in the components 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 while you are driv-
ing.
A warning light turning on briefly during
operation does not indicate a problem.
CAUTION
If the “ABS” warning light remains on
together with the brake system warn-
ing light, immediately stop your ve-
hicle at a safe place and contact your
Toyota dealer.
In this case, not only the antilock
brake system will fail but also the
vehicle will become extremely unsta-
ble during braking.

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TIRES
Ensure that your vehicle’s tires are
properly inflated. Adjust the tire pres-
sure indicated below:
Tire pressure, kPa (psi)Front 220 (32)
Rear 240 (35)
See Section 72 and Section 8 for in-
structions.
The trailer tires should be inflated to
the pressure recommended by the trail-
er manufacturer in respect to the total
trailer weight.
TRAILER LIGHTS
Your vehicle is equipped with a wire
harness stored in the rear end under
body. Your vehicle is fitted with a sock-
et for trailer lights under the rear
bumper. Use either of them to connect
and operate the trailer lights. However,
the trailer lights must comply with fed-
eral, state/provincial and local regula-
tions. See your local recreational ve-
hicle dealer or rental agency for the
correct type of wiring and relays for
your trailer. Check for correct operation
of the turn signals and stop lights each
time you hitch up. Direct splicing may
damage your vehicle’s electrical system
and cause a malfunction of your lights. BREAKIN SCHEDULE
Toyota recommends that you do not
tow a trailer with a new vehicle or a
vehicle with any new power train com-
ponent (engine, transmission, differen-
tial, wheel bearing, etc.) for the first
800 km (500 miles) of driving.
MAINTENANCE
If you tow a trailer, your vehicle will
require more frequent maintenance due
to the additional load. For this
information, please refer to the
scheduled maintenance information in
the ”Scheduled Maintenance Guide” or
”Owner ’s Manual Supplement”.
Retighten all fixing bolts of the towing
ball and bracket after approximately
1000 km (600 miles) of trailer driving.
PRETOWING SAFETY CHECK
Check that your vehicle remains level
when a loaded or unloaded trailer is
hitched. Do not drive if the vehicle has
an abnormal noseup or nosedown
condition, and check for improper
tongue load, overload, worn suspension
or other possible causes.
Make sure the trailer cargo is securely
loaded so that it cannot shift.