abs TOYOTA CAMRY 2000 Service Owner's Manual

Check for open and short in harness and connector between engine
control module and manifold absolute pressure sensor
(See page IN±31).
Turn ignition switch on
Check voltage between terminals PIM and E2 of engine control
module connector.
Check and replace manifold absolute pressure
sensor.When diagnostic trouble code 31 is dis-
played, check and replace engine control
module.
Repair or replace harness or connector. Voltage: 13 ± 3.9 V Measure voltage between terminals PI M
and E2 of engine control module connector.
± 5S±FE ENGINECIRCUIT INSPECTIONEG1±375

DIAGNOSTIC CHART
HINT: If diagnostic trouble codes ª22º (engine coolant temperature sensor circuit), ª24º (intake air
temperature sensor circuit),ª31º (manifold absolute pressure sensor circuit) and ª41º (throttle posi±
tion sensor circuit) are output simultaneously, E2 (sensor ground) may be open.
Check for open and short in harness and
connector between throttle position sensor and
ECM.Check for momentary interruption
(See page EG1±309).
Adjust or replace throttle position
sensor.
Repair or replace harness or
connector. Check operation for throttle position sensor.Check voltage of throttle position sensor.
WIRING DIAGRAM
Check and replace ECM.
± 5S±FE ENGINECIRCUIT INSPECTIONEG1±377

INSPECTION PROCEDURE
HINT: If diagnostic trouble code ª22º (engine coolant temperature sensor circuit), ª24º (intake air
temperature sensor circuit), ª31º (manifold absolute pressure sensor circuit) and ª41 ª (throttle
position sensor circuit) are output simultaneously, E2 (sensor ground) may be open.
(1) Remove glove compartment.
(See page EG1±234).
(2) Disconnect the vacuum hose from the throt±
tle body, then apply vacuum to the throttle
opener (See page EG1±204).
(3) Turn ignition switch ON.
Measure voltage between terminals VTA, IDL and
E2 of engine control module connector when the
throttle valve is opened gradually from the closed
condition.
Check voltage between terminals VTA, IDL and E2 of engine
control module connector.
The voltage should increase steadily in propor±
tion to the throttle valve opening angle.
Check for momentary interruption
(See page EG1±309).
Throttle Valve
Fully Closed
Fully OpenVTA ± E2 Terminal
IDL ± E2
± 5S±FE ENGINECIRCUIT INSPECTIONEG1±378

8
MAJOR COMPONENTS
The basic components of the new and previous Camry are as follows:
Model
NEWPREVIOUSItemNEWPREVIOUS
Drive SystemFF (Front Engine Wheel Drive)u
Type5S±FE: In±Line 4, 2.2±Literu
Displacement cm3 (cu. in.)2164 (132.0)u
Valve Mechanism16 Valves, DOHCu
eFuel SystemSFIu
n±Line
Engine
Max. Output [SAE±NET]
kW @ rpm (HP @ rpm)99 @ 5200 (133 @ 5200)
97 @ 5200 (130 @ 5200)*93 @ 5400 (125 @ 5400)
In± 4
E
Max. Torque [SAE±NET]
N
.m @ rpm (ft.lbf @ rpm)
199 @ 4400 (147 @ 4400)
197 @ 4400 (145 @ 4400)*197 @ 4400 (145 @ 4400)
Type1MZ±FE: V6, 3.0±Literu
Displacement cm3 (cu. in.)2995 (182.7)u
Valve Mechanism24 Valves, DOHCu
Fuel SystemSFIu
Engine
Max. Output [SAE±NET]
kW @ rpm (HP @ rpm)145 @ 5200 (194 @ 5200)140 @ 5200 (188 @ 5200)
V6
E
Max. Torque [SAE±NET]
N
.m @ rpm (ft.lbf @ rpm)283 @ 4400 (209 @ 4400)275 @ 4400 (203 @ 4400)
ClutchDry Type Single Plateu
Transaxle
Manual S51: 5±Speed (For 5S±FE)
E153: 5±Speed (For 1MZ±FE) S51: 5±Speed (For 5S±FE)
AutomaticA140E: 4±Speed (For 5S±FE)
A541E: 4±Speed (For 1MZ±FE)u
FrontVentilated Discu
BrakesRearSXV20 Series : Leading Trailing Drum
MCV20 Series : Solid Disc
SXV10 Series without ABS:
Leading Trailing Drum
SXV10 Series with ABS
and MCV10 Series: Solid Disc
Suspension4±Wheel MacPherson Strutu
SteeringGear TypeRack and PinionuSteeringPower SteeringEngine Revolution Sensing Typeu
*: California Specification Model

11
BODY
A crash impact absorbing structure for side collisions is adopted in addition to that for frontal and rear collisions. The body
is made highly rigid and lightweight through the optimized allocation of materials and the generous application of
high±strength sheet steel, etc. Furthermore, the vehicle creates less noise and vibration through the use of advanced noise
insulation technology, and the application of anti±corrosion sheet steel produces a highly rust±resistant body.

Body Shell

Impact Absorbing Structure for Side Collision

18
INTERIOR
 TRIM AND GARNISH
The door trim design is adapted to the side collision impact absorbing structure. Impact energy absorbing ribs and
high impact absorbing material are used at the inside of door trim.
The front pillar garnish and the center pillar garnish provide an impact±absorbing structure consisting of internal
ribs that dampen the impact.

37 ENGINEÐ5S±FE ENGINE
 ENGINE CONTROL SYSTEM
1. General
The engine control system of the new 5S±FE engine is basically the same in construction and operation as that of the
previous 5S±FE engine, except fo rthe changed listed bleow.
The exhaust emissions has been reduced through the adoption of the sequential multiport fuel injection system for
engine starting and the air±fuel ratio sensor*
2
The function of an air conditioning amplifier has been internally added to the ECM.
The engine control system of the new 5S±FE engine and previous 5S±FE engine and previous 5S±FE engine are
compared below.
System
OutlineNewPrevious
SFI
(SequentialA D±type SFI system is used, which indirectly detects
intake air volume by manifold absolute pressure.(q
Multiport Fuel
Injection)The fuel injection system is a sequential multiport fuel
injection system.
ESA
(Electronic SparkIgnition Timing is determined by the ECM based on
signals from various sensors. The ECM corrects ignition
timing in response to engine knocking.

(Electronic Spark
Advance)Torque control correction during gear shifting has been
used to minimize the shift shock.*1*1
IACA rotary solenoid type IAC valve controls the fast idle(Idle Air Control)
A rotary solenoid type IAC valve controls the fast idle
and idle speeds.
Fuel Pump
ControlFuel pump operation is controlled by signal from the
ECM.
Oxygen Sensor
(Air Fuel Ratio
Sensor*
2)
Heater Control
Maintains the temperature of the oxygen sensor (or air
fuel ratio sensor*2) at an approppiate level to increase
accuracy of detection of the oxygen concentration in the
exhaust gas.Ð
EGR Cut±Off
ControlCuts off EGR according to the engine condition to
maintain drivability of the vehicle and durability of
EGR components.

Evaporative
Emission ControlThe ECM controls the purge flow of evaporative emis-
sions (HC) in the charcoal canister in accordance with
engine conditions.
*1*1
Air Conditioning
Cut±Off ControlBy turning the air conditioning compressor ON or
OFF in accordance with the engine condition,
drivability is maintained
*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 control system.*1*1
Fail SafeWhen 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 Models., *2: Only for California Specification Models,
*
3: The air conditioning magnet scutch controled by the ECM.

42ENGINEÐ5S±FE ENGINE
5. Main Components of Engine Control System
The following table compares the main components of the new 5S±FE engine, and previous 5S±FE engine.
Model
NewPreviousComponentNewPrevious
Manifold Absolute Pressure SensorSemiconductoru
Throttle Position SensorLinear Typeu
Crankshaft Position SensorPick±Up Coil Type, 1u
Camshaft Position SensorPick±Up Coil Type, 1Ð
DistributorCamshaft PositionPick Up Coil Type 1DistributorSensorÐPick±Up Coil Type, 1
Knock SensorBuilt±In Piezoelectric
Element Type 1u
Oxygen Sensor
Heated Oxygen Sensor
(Bank 1, Sensor 1)*
1
(Bank 1, Sensor 2)
Air Fuel Ratio Sensor*
2
Oxygen Sensor
(Bank 1, Sensor 1)
(Bank 1, Sensor 2)
Injector2±Hole Typeu
IAC ValveRotary Solenoid Typeu
*1: Except for California Specification Models.
*
2: Only for California Specification Models.
Camshaft Position Sensor
The camshaft position sensor is mounted onto the
cylinder head. Using the protusion that is provided
on the timing pulley, the sensor generates 1 signal
for every revolution. This signal is then sent to the
ECM as a cranskshaft angle system.

46ENGINEÐ1MZ±FE ENGINE

MAJOR DIFFERNCES
Major differences between the new 1MZ±FE engne and previous engine are listed below.
Item
Outline
Cooling SystemAn aluminum radiator core is used for weight reduction.
Intake and Exhaust System
Through the optimized allocation of the exhaust pipe supports, the number
number of supports has been reduced from 5 to 4, thus reducing the noise
and vibration which are transmitted to the vehicle body.
Fuel SystemA fuel returnless system has been adopted to prevent the internal temperature
of the fuel tank from rising, and to reduce evaporative emissions.
Engine MountingThe characteristics of the engine mounts, torque rod, and absorber have been
optimized to reduce noise and vibration.
Engine Control System
A communication circuit has been provided between the ECM and the
ABS & TRAC ECU in conjunction with the adoption of the TRAC
(Traction Control) system.*
The fuel pressure control has been discontinued in conjunction with the
adoption of the fuel returnless system.
Instead of using the IDL signal input from the throttle position sensor,
the ECM now uses the VTA signal to detect the completely closed state of
the throttle valve.
A new EGR system which uses a EGR valve position sensor is used.
A communication method of the ECM and the hand±held tester has been
changed from the SAEJ1962 to the ISO 9141±2.
*: Applicable only to Vehicle Equipped with the TRAC System.

47 ENGINEÐ1MZ±FE ENGINE

FUEL SYSTEM
1. Fuel Returnless System
The new Camry has adopted a fuel returnless system to reduce evaporative emissions. With the pressure regulator
housed inside the fuel tank, this system elimnates the return of fuel from the engine area. This prevents the internal
temperature of the fuel tank from risisng, and reduces evaporative emissions.

ENGINE MOUNTING
1. General
The internal ofifice of the fron tmount has been modified to improve the riding comfort and to ensure a quieter
operation at idling.
The characteristics of the rear mount, left mount, torque rod, and absorber have been optimized.