2000 TOYOTA CAMRY air conditioning

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GENERAL 2000 FEATURES
DESCRIPTION 2. . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE
Evaporative Emission Control System3 . . . . . . . .
AUTOMATIC TRANSMISSION
Overdrive switch4 . . . . . . . . . . . . . . . . . . . . . . . . .
COROLLA
OUTLINE OF NEW FEATURES 6. . . . . . . . . . . .
MODEL CODE 7. . . . . . . . . . . . . . . . . . . . . . . . . .
MODEL LINE-UP 7. . . . . . . . . . . . . . . . . . . . . . . .
NEW FEATURES
1ZZ-FE Engine
Description8 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Major Difference9 . . . . . . . . . . . . . . . . . . . . . . .
Valve Mechanism10 . . . . . . . . . . . . . . . . . . . . . . .
Ignition System11 . . . . . . . . . . . . . . . . . . . . . . . .
Engine Control System12 . . . . . . . . . . . . . . . . . . .
Brakes
General20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Diagram20 . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Circuit20 . . . . . . . . . . . . . . . . . . . . . . .
Operation21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CAMRY
OUTLINE OF NEW FEATURES 26. . . . . . . . . . . .
MODEL CODE 29. . . . . . . . . . . . . . . . . . . . . . . . . . .
MODEL LINE-UP 30. . . . . . . . . . . . . . . . . . . . . . . . .
NEW FEATURES
Exterior31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5S-FE Engine
Description33 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Major Difference34 . . . . . . . . . . . . . . . . . . . . . . .
Intake and Exhaust System34 . . . . . . . . . . . . . . .
Fuel System35 . . . . . . . . . . . . . . . . . . . . . . . . . . .
5S-FNE Engine
Description36 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features of 5S-FNE Engine38 . . . . . . . . . . . . . . .
Engine Proper39 . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Mechanism40 . . . . . . . . . . . . . . . . . . . . . . .
Intake and Exhaust System41 . . . . . . . . . . . . . . .
Fuel System43 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition System48 . . . . . . . . . . . . . . . . . . . . . . . .
Engine Control System49 . . . . . . . . . . . . . . . . . . .
1MZ-FE Engine54 . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Transaxle54 . . . . . . . . . . . . . . . . . . . . . .
Brakes55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Body57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lighting58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning59 . . . . . . . . . . . . . . . . . . . . . . . . .
SRS Airbag59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CAMRY SOLARA
OUTLINE OF NEW FEATURES 62. . . . . . . . . . . .
MODEL CODE 64. . . . . . . . . . . . . . . . . . . . . . . . . . .
MODEL LINE-UP 64. . . . . . . . . . . . . . . . . . . . . . . . .
SIENNA
OUTLINE OF NEW FEATURES 66. . . . . . . . . . . .
MODEL CODE 67. . . . . . . . . . . . . . . . . . . . . . . . . . .
MODEL LINE-UP 67. . . . . . . . . . . . . . . . . . . . . . . . .
RAV4
OUTLINE OF NEW FEATURES 70. . . . . . . . . . . .
MODEL CODE 71. . . . . . . . . . . . . . . . . . . . . . . . . . .
MODEL LINE-UP 71. . . . . . . . . . . . . . . . . . . . . . . . .
TOYOTA TACOMA
OUTLINE OF NEW FEATURES 74. . . . . . . . . . . .
MODEL CODE 76. . . . . . . . . . . . . . . . . . . . . . . . . . .
MODEL LINE-UP 77. . . . . . . . . . . . . . . . . . . . . . . . .
NEW FEATURES
2RZ-FE and 3RZ-FE Engine
Description78 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LEV Compliance78 . . . . . . . . . . . . . . . . . . . . . . .
Differential82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4RUNNER
OUTLINE OF NEW FEATURES 84. . . . . . . . . . . .
MODEL CODE 86. . . . . . . . . . . . . . . . . . . . . . . . . . .
MODEL LINE-UP 86. . . . . . . . . . . . . . . . . . . . . . . . .
LAND CRUISER
OUTLINE OF NEW FEATURES 88. . . . . . . . . . . .
MODEL CODE 90. . . . . . . . . . . . . . . . . . . . . . . . . . .
MODEL LINE-UP 90. . . . . . . . . . . . . . . . . . . . . . . . .
NEW FEATURES
Engine91 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential91 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brakes
General92 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Function92 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Diagram93 . . . . . . . . . . . . . . . . . . . . . . . .
Layout of Components94 . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS

CAMRY
CAMRY ± OUTLINE OF NEW FEATURES 26
OUTLINE OF NEW FEATURES
The CAMRY is a high-quality family sedan with advanced technology and sporty performance. The following
changes are made for the 2000 model year.
1. Model Line-Up
The 5S-FNE CNG (Compressed Natural Gas) engine model has been added.
2. Exterior
Four new exterior colors have been added, for a total of 10 colors.
The design of the front and rear bumpers has been changed.
The bumper and the radiator grille have been made separate, and the radiator grille is chrome-plated.
The side protection molding has been increased in size. On the XLE grade model, chrome stripes have been
adopted for the side protection molding.
The 4-light multi-reflector type headlights are adopted with new styling.
The design and styling of the rear combination light has been changed.
The 16º aluminum alloy wheel and wheel cap has been added.
The styling of the 15º full wheel cover has been changed.
3. Interior
Wood-grain panels have been adopted in the interior of the XLE grade model.
CRS tether anchor brackets have been provided on the package tray trim. (except 5S-FNE engine Model)
A clock with an outside temperature gauge has been provided on the models with manual air conditioning.
4. 5S-FE Engine
The intake system from the inlet duct to the throttle body has been improved to increase torque and reduce
noise.
The direction of the rotation of the radiator cooling fan has been reversed.
A 2-way exhaust control system has been adopted on the TMMK made model.
Along with the discontinuance of the air assist system, the fuel injectors and the IAC valve have been
changed for the California specification model, in order to meet ULEV (Ultra-Low Emission Vehicle) re-
quirement.
The system for detecting evaporative emission leaks has been changed. For details, see the General 2000
Features section.
5. 5S-FNE Engine
Based on the 5S-FE gasoline engine, the 5S-FNE engine uses compressed natural gas. The fuel lines have
been designed exclusively for compressed natural gas application.
6. 1MZ-FE Engine
The system for detecting evaporative emission leaks has been changed. For details, see the General 2000
Features section.
A diagnostic trouble code (DTC) has been added for indicating a thermostat malfunction.
7. Automatic Transaxle
The overdrive switch has been changed to the momentary type. For details, see the General 2000 Features
section.
The differential gear ratio of the A140E automatic transaxle has been changed for the 5S-FNE engine mod-
el to accommodate the performance of the 5S-FNE engine.

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CAMRY ± OUTLINE OF NEW FEATURES27
8. Brakes
The specifications of the front and rear brakes have been changed.
9. Suspension
The front and rear springs, stabilizers, and shock absorbers have been modified to realize excellent stability,
controllability, and riding comfort.
10. Steering
A check valve has been added to the power steering gear box to help reduce kickback.
The rack stroke of the 5S-FE engine model has been changed to 145mm (5.71 in.), which is the same as
in the 1MZ-FE engine.
11. Body
Hood support dampers are used.
Two utility hooks added in the luggage room for the gasoline engine model.
To install the fuel tank in the front area of the luggage compartment, the upper back panel has been cut
out for the 5S-FNE engine model.
A performance rod that joins the tops of the right and left rear suspension strut towers has been adopted
for the 5S-FNE engine model.
The shape of the rear floor pan has been changed to prevent the luggage compartment capacity from being
reduced as a result of the installation of the fuel tank in the luggage compartment for the 5S-FNE engine
model.
12. Seat
The seat cover of the LE grade model has been changed.
Optional driver power seat added for the LE grade model.
A fixed type seat back is used for the rear seat for the 5S-FNE engine model.
13. Seat Belt
2-point NR (Non-Retractor) seat belt is used for the rear center seat for the 5S-FNE engine model.
14. Wireless Door Lock Control
Audio answer back is adopted.
15. Lighting
Along with the adoption of the 4-beam headlights, the electrical circuit of the daytime running light system
has been changed.
16. Air Conditioning
The air inlet mode selector of heater control panel has been changed from the lever type to the push button
type on the CE and LE grade model.
When the air outlet mode is set to the DEF or FOOT / DEF mode, the air inlet mode also changes to the
FRESH mode, has been also added on the CE and LE grade model.
A fully automatic controlled type air conditioning is used on the XLE grade model.
A defroster-linked air conditioning start up control has been continuing to use since the previous models
with air conditioning.
17. SRS Airbag
The inflator of the SRS airbag for the driver has been made more compact and lightweight.
A signal that causes the supply of fuel to be cut off during a frontal collision is output by the airbag sensor
assembly to the ECM for the 5S-FNE engine model.

CAMRY ± NEW FEATURES
172CM05
: Wood-grain 32
INTERIOR
A clock with an outside temperature gauge has been provided on the models with manual air conditioning.
Pressing the mode switch changes the display to show the clock, outside air temperature in Fahrenheit,
outside air temperature in Centigrade, and back to the clock.
The models with the fully automatic control type air conditioning are provided with an outside temperature
gauge on the heater control panel.
Wood-grain panels have been adopted in the interior of the XLE grade model.

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CAMRY ± NEW FEATURES49
8. Engine Control System
General
An engine control system based on the 5S-FE engine has been adopted. The knock sensor has been discon-
tinued because natural gas has a high octane value and is less susceptible to knocking.
The engine control system of 5S-FNE and 5S-FE engines are compared below.
System
Outline5S-FNE5S-FE
SFI
Se
quential
A D-type SFI system is used, which indirectly detects
intake air volume by manifold absolute pressure sensor.Sequential
Multiport Fuel
InjectionThe fuel injection system is a sequential multiport fuel
injection system.
Ignition timing is determined by the ECM based on
signals from various sensors.
ESA
Electronic Spark
AdvanceThe ECM corrects the ignition timing in response to
engine knocking in accordance with the signals
received from the knock sensor.
Ð
dva ce
Torque control correction during gear shifting had been
used to minimize the shift shock.*1
IAC
(Idle Air Control)A rotary solenoid type IAC valve controls the fast idle
and idle speeds.(1-Coil Type
Built-in Driver)(2-Coil Type)
Fuel Pump ControlFuel pump operation is controlled by signal from the
ECM.Ð
Fuel Cut-Off
Control
The fuel shutoff valves for the fuel tank, fuel pressure
regulator, and delivery pipe are shut off to stop the
supply of fuel when the ignition switch is turned OFF or
during abnormal conditions (such as engine stalling,
SRS airbag deployed, etc.).
Ð
Injector ControlPrevents the frozen stuck of the injector to ensure the
startability of the engine at low temperature.Ð
Oxygen Sensor
and Air Fuel Ratio
Sensor
Heater ControlMaintains the temperature of the oxygen sensor and air
fuel ratio sensor at an appropriate level to increase
accuracy of detection of the oxygen concentration in the
exhaust gas.
*2
EGR Cut-Off
ControlCuts off EGR according to the engine condition to
maintain drivability of the vehicle and durability of the
EGR components.

Evaporative
Emission ControlThe ECM controls the purge flow of evaporative
emissions (HC) in the charcoal canister in accordance
with engine conditions.
Ð
Air Conditioning
Cut-Off ControlBy turning the air conditioning compressor ON or OFF
in accordance with the engine condition, drivability is
maintained.
*3*3
Diagnosis
When the ECM detects a malfunction, the ECM
diagnoses and memorized the failed section.
DiagnosisThe diagnosis system includes a function that detects a
malfunction in the evaporative emission control system.Ð
Fail-Safe
When the ECM detects a malfunction, the ECM stops or
controls the engine according to the data already stored
in memory.

*1: Only for Automatic Transaxle Model
*
2: Air fuel ratio sensor only for California specification model
*
3: The air conditioning magnet clutch controled by the ECM

CAMRY ± NEW FEATURES
No.4 INJECTOR
SPARK PLUGSIGNITERS and
IGNITION COILS
No.2 INJECTOR
No.1 INJECTOR
No.3 INJECTOR
SENSORS ACTUATORS
MANIFOLD ABSOLUTE
PRESSURE SENSORSFI PIM#10+
CRANKSHAFT POSITION
SENSORNE
CAMSHAFT POSITION
SENSORG
ENGINE COOLANT TEMP.
SENSORTHW
INTAKE AIR TEMP. SENSORTHA
THROTTLE POSITION SENSORVTA
COMBINATION METER
SPD
Vehicle Speed Signal
AIR FUEL RATIO SENSOR
(Bank 1, Sensor 1)AF
HEATED OXYGEN SENSOR
(Bank 1, Sensor 2)OX2
POWER STEERING OIL
PRESSER SWITCHPSW
TAILLIGHT & REAR WINDOW
DEFOGGER SYSTEMELS
IGNITION SWITCHSTA
PARK / NEUTRAL POSITION
SWITCHNSW
STOP LIGHT SWITCHSTP
AIRBAG SENSOR ASSEMBLY
F/PS
Fuel Cut-Off Signal
#10
#20+
#20
#30+
#30
#40+
#40
ESA
IGT1,
IGT2
IGF
CONTROL VALVEIACRSD
VSV EGREGR
AIR FUEL RATIO SENSOR
HEATER AIR FUEL RATIO SENSOR
HEATER CONTROLHTAF
HEATED OXYGEN SENSOR
HEATER OXYGEN SENSOR HEATER
CONTROLHT2
MAGNET CLUTCH RERAYAIRE CONDITIONING
CUT-OFF CONTROLMGC
FUEL GAGE
LOW FUEL LEVEL WARNING
LIGHT
ECM
AIR CONDITIONING SWITCHA/C SW
R, 2, L
FUEL
FUEL W
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Construction
The configuration of the engine control system in the 5S-FNE engine is as shown in the following chart.
(Continued)

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CAMRY ± NEW FEATURES
159BE05 172CM10
LCD
CE and LE Grade Model XLE Grade Model
167CN19
Front Airbag
Sensors
Airbag
Sensor
Assembly
Airbags
Seat Belt
Preten-
sioners
Fuel Cutoff
Signal
ECM Fuel Shutoff Valves59
AIR CONDITIONING
The air inlet mode selector of heater control panel has been changed from the lever type to the push button
type on the CE and LE grade models.
When the air outlet mode is set to the DEF or FOOT/DEF mode, the air inlet mode also changes to the
FRESH mode, has been also added on the CE and LE grade model.
A fully automatic controlled type air conditioning is used on the XLE grade model.
The basic construction and operation are the same as in the CAMRY SOLARA.
A defroster-linked air conditioning start up control has been continuing to use since the previous models
with air conditioning.

Heater Control Panel 
SRS AIRBAG
When the SRS airbag is deployed, a signal to shut off the supply of fuel is output by the airbag sensor assembly
to the ECM for the 5S-FNE engine model.

System Diagram 

ELECTRONIC CONTROL SYSTEM
The CAMRY 5S±FE engine is equipped with a TOYOTA Computer Controlled System (TCCS)
which centrally controls the MFI/SFI, ESA, IAC diagnosis systems etc. by means of an Engine
Control Module (ECM±formerly MFI/SFI computer) employing a microcomputer.
The ECM controls the following functions:
1. Multiport Fuel Injection (MFI)/Sequential Multiport Fuel Injection (SFI)
The ECM receives signals from various sensors indicating changing engine operation conditions
such as:
Intake manifold pressure
Intake air temperature
Engine coolant temperature
Engine speed
Throttle valve opening angle
Exhaust oxygen content etc.
The signals are utilized by the ECM to determine the injection duration necessary for an optimum
air±fuel ratio.
2. Electronic Spark Advance (ESA)
The ECM is programmed with data for optimum ignition timing under all operating conditions.
Using data provided by sensors which monitor various engine functions (RPM, engine coolant
temperature, etc.), the microcomputer (ECM) triggers the spark at precisely the right instant.
3. Idle Air Control (IAC)
The ECM is programmed with target idling speed values to respond to different engine conditions
(engine coolant temperature, air conditioning ON/OFF, etc.). Sensors transmit signals to the ECM
which controls the flow of air through the bypass of the throttle valve and adjusts idle speed to
the target value.
4. Diagnosis
The ECM detects any malfunctions and abnormalities in the sensor network and lights a
malfunction indicator lamp in the combination meter. At the same time, trouble is identified and
a diagnostic trouble code is recorded by the EC
5. The diagnostic trouble code can be read by the
number of blinks of the malfunction indicator lamp when terminals TE1 and E1 are connected.
The diagnostic trouble codes are referred to in later page. (See page EG1±300)
Fail±Safe Function
In the event of the sensor malfunction, a back±up circuit will take over to provide minimal
driveability, and the malfunction indicator lamp will illuminate. The MFI (Multiport Fuel Injection)/SFI (Sequential Multiport Fuel Injection) system is composed
of 3 basic sub±systems: Fuel, Air Induction and Electronic Control Systems.
FUEL SYSTEM
Fuel is supplied under constant pressure to the MFI/SFI injectors by an electric fuel pump. The
injectors inject a metered quantity of fuel into the intake port in accordance with signals from the
ECM (Engine Control Module).
AIR INDUCTION SYSTEM
The air induction system provides sufficient air for engine operation.
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±166