TOYOTA CAMRY 2000 Service Repair Manual

52ENGINEÐ1MZ±FE ENGINE
5. Main Components of Engine Control System
Mass Air Flow Meter
The hot wire type mass air flow meter has been
changed to the plug±in type. Its basic operation is the
same as that of the previous type.
6. EGR Control
In the previous models, an EGR vacuum modulator or a VSV was used to control the EGR gas volume. In the new
model, the ECM regulates the VSV to control the vacuum that is applied to the EGR valve, thus ensuring an optimal
EGR gas volume according to the engine condition and improving drivability.
Construction
1) VSV
The VSV controls the vacuum from the VCV that is applied to the EGR valve, in accordance with the duty signals received
from the ECM.

53ENGINEÐ1MZ±FE ENGINE
2) VCV (Vacuum Control Valve)
The VCV is a valve that regulates the intake manifold
vacuum that is appllied to the VSV to a constant level
(±17 kPa, ±130 mm Hg.)
The intake manifold vacuum that is supplied
through the S port is applied to the diaphragm. If this
force becomes greater than the spring force, the
diaphragm moves downward, allowing the valve to
close the S port and the atmosphere supplied
through the filter. Conversely, if the vacuum that is
applied to the diaphragm becomes weaker, the
diaphragm moves upward, causing the valve to
open and to shut off the atmosphere and supply the
intake manifold vacuum. This process is repeated to
regulate the vacuum in the Z port to a constant level.
3) EGR Valve Position Sensor
The EGR valve position sensor is mounted on the EGR valve. This sensor converts the EGR valve opening into a
voltage and sends it to the ECM as the EGR valve position signal.

54ENGINEÐ1MZ±FE ENGINE
Operation
The ECM executes duty control of the VSV to control the vacuum that has been regulated to a constant level by the
VCV, thus controlling the vacuum that is applied to the EGR valve.
Also, the EGR valve position sensor in the EGR valve detects the EGR valve opeining to provide feed back control
to the ECM, thus achieveing a target opining that is appropriate for the engine condition.
7. Others
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 ECM sends signals such as the throttle position signal and the
engine speed signal to the ABS & TRAC ECU. In addition, the ECM executes fuel cutoff in accordance with the
request signals from the ABS & TRAC ECU.

55CHASSISÐCLUTCH
CHASSIS
CLUTCH
 DESCRIPTION
As in the previous model, a dry type single plate clutch which is operated by hydraulic pressure is used on the new
model.
Along with the adoption of the 1MZ±FE engine model with manual transaxle, a release cylinder with a larger cylinder
diameter has been newly adopted to reduce the clutch pedal effort.

Specifications
Model
NewPrevious
Engine Type5S FE1MZ FE5S FEItem5S±FE1MZ±FE5S±FE
ClutchType
Dry Type Single Plate
Clutch
Diaphragm Spring
uu
OperationHydraulicuu
ClutchTypeDST*1uuClutch
CoverSize mm (in.)224 (8.82)236 (9.29)224 (8.82)
Clutch
Facing Size*2
mm (in.)
224 x 150 x 3.5
(8.82 x 5.91 x 0.14)236 x 150 x 3.5
(9.29 x 5.91 x 0.14)224 x 150 x 3.5
(8.82 x 5.91 x 0.14)
DiscFacing Area
cm
2 (in.2)217 (33.7)260 (40.4)217 (33.7)
MasterTypeConventionaluuMaster
CylinderCylinder Dia.
mm (in.)15.87 (0.62)uu
ReleaseTypeNon±AdjustableuuRelease
CylinderCylinder Dia.
mm (in.)20.64 (0.81)22.2 (0.87)20.64 (0.81)
*1: DST (Diaphragm Spring Turnover), *2: Outer Diameter x Inner Diameter x Thickness

56CHASSISÐMANUAL TRANSAXLE
MANUAL TRANSAXLE
 DESCRIPTION
The 5S±FE engine model uses the same S51 manual transaxle as in the previous model.
The 1MZ±FE engine model ahs newly adopted the E153 manual transaxle. The basic construction and operation
of the E153 manual transaxle are the same as those of the '95 MR2. However, the differential gear ratio has been
changed to accommodate the characteristics of the engine.

Specifications
Model
NewPrevious'95 MR2
Transaxle TypeS51E153S51E153
Engine Type5S FE1MZ FE5S FE3S GTEItem5S±FE1MZ±FE5S±FE3S±GTE
1st3.5383.2303.5383.230
Gear2nd1.9601.9131.9601.913Gear
Ratio3rd1.2501.2581.2501.258
4th0.9450.9180.9450.918
5th0.731uuu
Reverse3.1533.5453.15347
Differential Gear Ratio3.9443.9333.9444.285
Oil Capacity
liters (US qts, Imp. qts)2.6 (2.7, 2.3)4.2 (4.4, 3.7)2.6 (2.7, 2.3)4.2 (4.4, 3.7)
Oil ViscositySAE75W±90uuu
Oil Grade API, GL±4 OR GL±5uAPI GL±3, GL±4 OR GL±5u

57 CHASSISÐAUTOMATIC TRANSAXLE
AUTOMATIC TRANSAXLE
 DESCRIPTION
The A14OE automatic transaxle is used on the 5S±FE engine model, and the A541E automatic transaxle is used ont
he 1MZ±FE engine model. The basic construction and operation are the same as those of the previous model.
However, the pattern select switch has been discontinued both from the A140E and A541E automatic transaxles.

Specifications
Engine Type
5S±FE1MZ±FE
Transaxle TypeA140EA541EItemA140EA541E
G
1st2.810u
Gear
Ratio2nd1.549uRatio3rd1.000u Overdrive0.7060.735
Reverse2.296u
Counter Gear Ratio0.945u
Differential Gear Ratio3.9443.933
Fluid Capacity
liters
Transmission5.6 (5.9, 4.9)6.8 (7.2, 5.9)
liters
(US qts, Imp.qts)
Differential1.6 (1.7, 1.4)0.9 (0.9, 0.8)
Fluid TypeSAE75W±90u

58CHASSISÐDRIVE SHAFT
DRIVE SHAFT
 DESCRIPTION
The 5S±FE engine model continues to use the same drive shaft used on the previous model.
Previously, the inboard joint of the drive shaft on the 1MZ±FE engine model was the bolt±mounted type. However,
on the new model, the inboard joint is the friction±welded integrated type.
On the new model with 1MZ±FE engine, the boot of the outboard joint are made of thermoplastic elastomer, which
has superior durability.

5S±FE Engine Model

1MZ±FE Engine Model

59 CHASSISÐAXLES
AXLES
 DESCRIPTION
As in the previous model, a double±row angular ball bearing is used for both the front and rear axles in the new model.

60CHASSISÐBRAKES
BRAKES
 DESCRIPTION
The ventilated disc brake is used for front brake on all models.
The rear drum brake is used on the 5S±FE engine model, and the rear solid disc brake is used on the 1MZ±FE engine
model.
The ABS is provided on the 5S±FE engine CE grade model as an option and on other models as standard.
An ABS actuator has been changed to the 2±position solenoid valve type actuator.
A compact and lightweight ABS & TRAC system, in which the ABS and TRAC functions are integrated, is made
available as an option on the LE and XLE grade models with the 1MZ±FE engine.
A portless and portless type master cylinder is used on the models with ABS & TRAC system.
The center lever type parking brake is adopted on all models.

61 CHASSISÐBRAKES

Specifications
Model
NewPrevious
Engine Type5S FE1MZ FE5S FE1MZ FEItem5S±FE1MZ±FE5S±FE1MZ±FE
MasterTypeTandemuuu
CylinderDiameter .mm (in.)25.4 (1.00)uuu
BrakeTypeTandemuuu
BoosterDiameter .in.8.5º+ 8.5º, 8º+ 9º *u8º + 9ºu
TypeVentilated Discuuu
Pad Area cm2 (in.2)48 (7.44)44 (6.82)48 (7.44)57 (8.84)
Front
BrakeWheel Cylinder Dia.
mm (in.)57.2 (2.25)60.33 (2.38)57.2 (2.25)57.2 (2.25)
42.8 (1.69) x2*
1
Rotor Size (D xT)*2
mm (in.)
255 x 28
(10.04 x 1.10)275 x 28
(10.83 x 1.10)255 x 28
(10.04 x 1.10)275 x 28
(10.83 x 1.10)
TypeLeading±
TrailingLeading±
Trailing
RearLining Area cm2 (in.2)77 (11.94)77 (11.94)
Drum
BrakeWheel Cylinder Dia.
mm (in.)19.05 (0.75)20.64 (0.81)
Drum Inner Dia.
mm (in.)228.6 (9.00)228.6 (9.00)
TypeSolid Discu*1 u
RearPad Area cm2 (in.2)34 (5.27)u*1 uRear
Disc
Brake
Wheel Cylinder Dia.
mm (in.)34.9 (1.38)u*1 u
BrakeRotor Size (D xT)*2
mm (in.)
269 x 10
(10.59 x 0.39)u*1 u
TypeDual±P Valveuu*1u
BrakeDeflection Point of
Hydraulic Pressure1470 (15 213)2942 (30 427)2452 (25 356)2942 (30 427)Control
Valve
Hydraulic Pressure
kPa (kgf/cm
2, psi)
1470 (15, 213)2942 (30, 427)2452 (25, 356)2942 (30, 427)
ValvePressure Reduction
Gradient0.62u0.37u
ParkingTypeDrumuuuParking
Brake
Size .mm (in.)228.6 (9.00)170.0 (6.69)228.6 (9.00)
170.0 (6.69)*
1170.0 (6.69)
ABSSTD, OPT*3STDOPT, STD*4u
ABS & TRAC SystemÐOPT*5ÐÐ
*: TMM Produced Model, *1: Model with ABS, *2: D: Outer Diameter, T: Thickness,
*3: CE Grade Model, *4: XLE Grade Model, *5: LE and XLE Grade Model,