wiring TOYOTA CAMRY 2000 Service Workshop Manual

CAMRY ± NEW FEATURES
150NF111
SRS Warning
LightAirbag Sensor
AssemblyRight Side Airbag
Assembly
Right Side Airbag
Sensor Assembly
Left Side Airbag
Sensor Assembly Left Side
Airbag Assembly
150NF112
BatterySide Airbag Sensor
Assembly (LH)
Initiator
(LH)
Back-Up
Power Source
DC-DC
Converter
CPU
Airbag Sensor AssemblyInitiator
(RH) Side Airbag Sensor
Assembly (RH)
SRS Warning Light
Drive
Circuit
Communication
Circuit
Drive
CircuitSafing
Sensor
Drive
Circuit
Drive
Circuit
DLC1
Power
Control
Ignition Switch
Communication
Circuit
Power
Control
18
2. Layout of Components
The major function parts of the side airbag system are shown below.
3. Wiring Diagram

CAMRY ± NEW FEATURES
150NF118
BatteryIgnition Switch
EFI
Relay
Transponder
Key Coil
Transponder
Key AmplifierECMBody
ECU
DLC1
150NF119
Transponder Chip
24
3. Wiring Diagram
4. Construction
The engine immobiliser system consists of the transponder key (ignition key), transponder key coil, trans-
ponder key amplifier, and ECM.
Transponder Key (Ignition Key)
A transponder chip is embedded in the grip of the
ignition key. Each transponder chip contains an
individual transponder key-code (ID code). The
key does not need an internal battery to transmit
a key code.
Transponder Key Coil and Transponder Key Amplifier
The transponder key coil is a ring-shaped coil installed around the ignition key cylinder. The transponder
key amplifier is installed in the back of the key cylinder.
An electrical power circuit to provide power to the transponder key coil has been enclosed in the amplifier.
ECM
The control circuit of the engine immobiliser system has been integrated inside the ECM. As a result, the
time has been reduced taken for the engine to start in case of mismatching key code thus improving the
system's theft deterrent performance.
A maximum of 10 different transponder key codes (master key: 7 types, sub key: 3 types) can be registered
in the ECM.

'99camry U
38
This indicator comes on when the igni-
tion key is turned to the ºACCº or
ºONº position. It goes off after about
6 seconds. This means the front seat
belt pretensioners are operating proper-
ly.
This warning light system monitors the
front airbag sensors, airbag sensor as-
sembly, seat belt pretensioner assembly,
warning light, interconnecting wiring and
power sources. (For details, see ºService
reminder indicators and warning buzzersº
in Chapter 1±5.)The seat belt pretensioner system mainly
consists of the following components and
their locations are shown in the illustra-
tion.
1. Front airbag sensors
2. SRS airbag warning light
3. Seat belt pretensioner assemblies
4. Airbag sensor assembly
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.

'99camry U
40
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.This indicator comes on when the igni-
tion key is turned to the ºACCº or
ºONº position. It goes off after about
6 seconds. This means the SRS airbags
are operating properly.
The SRS airbag warning light system
monitors the front airbag sensors, airbag
sensor assembly, inflators, warning light,
interconnecting wiring and power sources.
(For details, see ºService reminder indica-
tors and warning buzzersº in Chapter
1±5.)
SRS driver and front
passenger airbags

'99camry U
48
CAUTION
SRS side airbags inflate with consid-
erable force. To avoid potential death
or serious injury during inflation of a
side airbag, Toyota strongly recom-
mends that the driver and front pas-
senger;

Wear their seat belt

Remain properly seated with their
back against the seat at all times.
This indicator comes on when the igni-
tion key is turned to the ºACCº or
ºONº position. It goes off after about
6 seconds. This means the SRS side
airbags are operating properly.
The warning light system monitors the air-
bag sensor assembly, inflators, warning
light, interconnecting wiring and power
sources. (For details, see ºService remind-
er indicators and warning buzzersº in
Chapter 1±5.)The SRS side airbags may not inflate if
the vehicle is subjected to a collision
from the side at an angle, or a collision
to the side of the vehicle body other
than the passenger compartment shown
in the illustration, which impact is not
severe enough for the passenger
compartment.

'99camry U
170
(b) Starting the engine
Before starting the engine, be sure to fol-
low the instructions in º(a) Before crank-
ingº.
Normal starting procedure
The multiport fuel injection system/sequen-
tial multiport fuel injection system in your
engine automatically controls the proper
air±fuel mixture for starting. You can start
a cold or hot engine as follows:
1. With your foot off the accelerator ped-
al, crank the engine by turning the key
to ºSTARTº. Release it when the en-
gine starts.
2. After the engine runs for about 10 se-
conds, you are ready to drive.
If the weather is below freezing, let the
engine warm up for a few minutes before
driving.
If the engine stalls...
Simply restart it, using the correct proce-
dure given in normal starting.
If the engine will not start...
See ºIf your vehicle will not startº in Part
4.NOTICE
Do not crank for more than 30 se-
conds at a time. This may overheat
the starter and wiring systems.
Do not race a cold engine.
If the engine becomes difficult to
start or stalls frequently, have the
engine checked immediately.

Always slow down in gusty crosswinds.
This will allow you much better control.

Drive slowly onto curbs and, if pos-
sible, at a right angle. Avoid driving
onto high, sharp±edged objects and
other road hazards. Failure to do so
can lead to severe tire damage result-
ing in tire bursts.

When parking on a hill, turn the front
wheels until they touch the curb so
that the vehicle will not roll. Apply the
parking brake, and place the transmis-
sion in ºPº (automatic) or in first or
reverse (manual). If necessary, block
the wheels.

Washing your vehicle or driving through
deep water may get the brakes wet. To
see whether they are wet, check that
there is no traffic near you, and then
press the pedal lightly. If you do not
feel a normal braking force, the brakes
are probably wet. To dry them, drive
the vehicle cautiously while lightly
pressing the brake pedal with the park-
ing brake pulled. If they still do not
work safely, pull to the side of the road
and call a Toyota dealer for assistance.
Tips for driving in various
conditions

'99camry U
175

A safety chain must always be used
between the towing vehicle and the
trailer. Leave sufficient slack in the
chain for turns. The chain should
cross under the trailer tongue to
prevent the tongue from dropping to
the ground in case it becomes dam-
aged or separated. For correct safety
chain procedures, follow the hitch or
trailer manufacturer 's recommenda-
tions.
CAUTION

If the total trailer weight exceeds
453 kg (1000 lb.), trailer brakes are
required.

Never tap into your vehicle's hy-
draulic system as it would lower its
braking effectiveness.

Never tow a trailer without using a
safety chain securely attached to
both the trailer and the vehicle. If
damage occurs to the coupling unit
or hitch ball, there is danger of the
trailer wandering over into another
lane.
TIRES

Ensure that your vehicle's tires are
properly inflated. Adjust the tire pres-
sure to the recommended cold tire
pressure indicated below (see Chapter
7±2 for instructions.):
Tire pressure, kPa (kgf/cm
2 or bar, psi)
5S±FE engine
Front 210 (2.1, 30)
Rear 210 (2.1, 30)
1MZ±FE engine
Front 220 (2.2, 32)
Rear 220 (2.2, 32)

The trailer tires should be inflated to
the pressure recommended by the trail-
er manufacturer in respect to the total
trailer weight.TRAILER LIGHTS

Trailer lights must comply with federal,
state/provincial and local regulations.
See your local recreational vehicle
dealer or rental agency for the correct
type of wiring and relays for your trail-
er. Check for correct operation of the
turn signals and stop lights each time
you hitch up. Direct splicing may dam-
age your vehicle's electrical system
and cause a malfunction of your lights.
BREAK±IN 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 informa-
tion, please refer to the scheduled
maintenance information in the ºSched-
uled Maintenance Guideº or ºOwner 's
Manual Supplementº.

Retighten all fixing bolts of the towing
ball and bracket after approximately
1000 km (600 miles) of trailer driving.

'99camry U
182
(b) Starting a flooded engine
If the engine will not start, your engine
may be flooded because of repeated
cranking.
If this happens, turn the key to ºSTARTº
with the accelerator pedal held down.
Keep the key and accelerator pedal so for
15 seconds and release them. Then try
starting the engine with your foot off the
accelerator pedal.
If the engine does not start after 30 se-
conds of cranking, release the key, wait
a few minutes and try again.
If the engine still will not start, it needs
adjustment or repair. Call a Toyota dealer
or qualified repair shop for assistance.
NOTICE
Do not crank for more than 30 se-
conds at a time. This may overheat
the starter and wiring systems.
(c) Jump starting
To avoid serious personal injury and
damage to your vehicle which might re-
sult from battery explosion, acid burns,
electrical burns, or damaged electronic
components, these instructions must be
followed precisely.
If you are unsure about how to follow this
procedure, we strongly recommend that
you seek the help of a competent me-
chanic or towing service.
CAUTION

Batteries contain sulfuric acid
which is poisonous and corrosive.
Wear protective safety glasses when
jump starting, and avoid spilling
acid on your skin, clothing, or ve-
hicle.

If you should accidentally get acid
on yourself or in your eyes, remove
any contaminated clothing and flush
the affected area with water imme-
diately. Then get immediate medical
attention. If possible, continue to
apply water with a sponge or cloth
while enroute to the medical office.

The gas normally produced by a
battery will explode if a flame or
spark is brought near. Use only
standardised jumper cables and do
not smoke or light a match while
jump starting.
NOTICE
The battery used for boosting must
be 12 V. Do not jump start unless you
are sure that the booster battery is
correct.

1
GENERAL 1999 FEATURES
148BE16
Corolla
Right Side Front
Airbag SensorInflator and Bag for
Front Passenger
(Above the Glove Box)
Airbag Sensor Assembly Inflator and Bag for Driver
(In Steering Wheel Pad) Left Side Front
Airbag Sensor
SRS Warning Light
160GE04
Front Airbag
Sensor (RH)
Battery
Front Airbag
Sensor (LH)
DC-DC
Converter
Back-Up
Power
Source
CPU
Airbag
Sensor
Safing
Sensor
Drive
Circuit
Drive
Circuit
Drive
Circuit
Drive
Circuit
SRS Warning Light
DLC1
Squib (For Driver)
Initiator
(For Front
Passenger)
Spiral Cable
To Seat Belt
Pretensioner Airbag Sensor AssemblyDLC3
5
2. Layout of Components
The major function parts of the airbag systems are shown below.
3. Wiring DIagram

W 1998 TOYOTA MOTOR CORPORATIONAll rights reserved. This book may not be repro-
duced or copied, in whole or in part, without the
written permission of Toyota Motor Corporation.
First Printing: Dec. 9, 1998 01-981209-00
FOREWORD
To assist you in your service activities, this manual explains the main characteristics of the 1999 CAMRY
CNG, in particular providing a technical explanation of the construction and operation of new mechanisms
and new technology used.
Applicable models: SXV23 Series
This manual is divided into 3 sections.
1. Introduction Ð Vehicle Outline and model line-up.
2. Technical Description Ð Technical explanation of the construction and operation of each new
system and component.
3. Appendix Ð Major technical specifications of the vehicle.
CAUTION, NOTICE, REFERENCE and NOTE are used in the following ways:
CAUTION
A potentially hazardous situation which could result in injury to people may occur
if instructions on what to do or not do are ignored.
NOTICEDamage to the vehicle or components may occur if instructions on what to do or not
do are ignored.
REFERENCEExplains the theory behind mechanisms and techniques.
NOTENotes or comments not included under the above 3 titles.
For detailed service specifications and repair procedures, refer to the following Repair Manuals:
Manual Name
Pub. No.

1999 CAMRY Repair Manual Vol. 1
Vol. 2

1999 CAMRY CNG Repair Manual Supplement

1999 CAMRY CNG Electrical Wiring Diagram
ManualRM654U1
RM654U2
RM683U
EWD371U
All information contained herein is the most up-to-date at the time of publication. We reserve the right to
make changes without prior notice.