2006 TOYOTA RAV4 output shaft

ENGINE - 2AZ-FE ENGINE
DR011EG22 01NEG26Y
Air Flow During Engine Revolution
Wa t e r P u m p
Swirl Chamber
Crankshaft
Bearing Cap
Plastic Region
Tightening BoltsThermostat Housing
Air Conditioning
Compressor BracketsAir Passage Holes
Air Flow
NOTICE
Never attempt to machine the cylinder because it has a thin liner thickness.
EG-7
4. Cylinder Block
Lightweight aluminum alloy is used for the cylinder block.
By producing the thin cast-iron liners and cylinder block as a unit, compaction is realized.
Air passage holes are provided in the crankshaft bearing area of the cylinder block. As a result, the air at
the bottom of the cylinder flows smoother, and pumping loss (back pressure at the bottom of the piston
generated by the piston’s reciprocal movement) is reduced to improve the engine’s output.
The oil filter and the air conditioning compressor brackets are integrated into the crankcase. Also, the
water pump swirl chamber and thermostat housing are integrated into the cylinder block.

ENGINE - 2AZ-FE ENGINE
01NEG43Y
238EG79
230LX12
Throttle Body
Throttle Position
Sensor Portion
Throttle Control
MotorMagnetic
Yo k e
Hall IC
Cross Section
Throttle Position
Sensor
Magnetic Yoke
Hall
IC
Hall
IC
VTA1
ETA
VCTA
VTA2ECMOutput
Voltage(V)
5
0
Fully Close10 90 (
)
Fully Open VTA2
VTA1
Throttle Valve Opening Angle
Service Tip
The inspection method differs from the conventional contact type throttle position sensor because
this non-contact type sensor uses a Hall IC.
For details, refer to the 2006 RAV4 Repair Manual (Pub. No. RM01M1U).
EG-41
Throttle Position Sensor
The throttle position sensor is mounted on the throttle body to detect the opening angle of the throttle valve.
The throttle position sensor converts the magnetic flux density that changes when the magnetic yoke
(located on the same axis as the throttle shaft) rotates around the Hall IC into electric signals to operate the
throttle control motor.

ENGINE - 2AZ-FE ENGINE
01NEG13Y
Generator
RegulatorB
DF
RLOECM
Various Electrical
Loads
Battery Current Sensor
Battery Temperature Sensor
Battery Voltage
Battery
Various Sensors and Switches
Throttle Position Sensor
Crankshaft Position Sensor
Accelerator Pedal Position
SensorEG-65
11. Charging Control
General
This system lowers the generated voltage when the vehicle is idling or is being driven at a constant speed,
and raises the generated voltage when the vehicle is decelerating. This reduces the load on the engine as
a result of the electric generation of the generator, thus contributing to the fuel economy of the engine.
During acceleration, this system regulates the generated voltage in order to place the amperage estimation
value close to the target value.
This control consists of the ECM, battery current sensor with a built-in battery temperature sensor,
generator, and various sensors and switches.
The ECM detects driving condition based on signals from various sensors and switches, and detects
charging condition based on signals from the generator, battery current sensor and battery temperature
sensor. Then the ECM outputs signals to the IC regulator to control the genetated voltage of the generator.
The ECM stops the charging control and the generator switches to normal power generation mode under
the following conditions:
Low battery capacity
Low or high battery temparature
Wipers operating or blower motor operating with tail lamp relay ON
System Diagram

ENGINE - 2GR-FE ENGINE
285EG19
VVT-i
ControllerNo. 2 Camshaft
(Exhaust)
Timing
Rotor
VVT-i ControllerNo. 1 Camshaft
(Intake)
No. 3 Camshaft
(Intake)
Timing
Rotor
VVT-i Controller
VVT-i ControllerNo. 4 Camshaft
(Exhaust)Indented R portion
of cam (Profile)
Cam with indented REG-81
2. Camshaft
The camshafts are made of cast iron alloy.
An oil passage is provided on the intake and exhaust camshafts in order to supply engine oil to the VVT-i
system.
A VVT-i controller has been installed on the front of the intake and exhaust camshafts to vary the timing
of the intake and exhaust valves.
Together with the use of the roller rocker arm, the cam profile has been designed with an indented R
(radius). This results in increased valve lift when the valve begins to open and finishes closing, helping
to achieve enhanced output performance.

ENGINE - 2GR-FE ENGINE
285EG79
279EG50
Engine
Front
Timing RotorCrankshaft
Position Sensor
Timing Rotor (720
CA)
10
CA
2 Teeth
Missing EG-110
Mass Air Flow Meter
The 2GR-FE engine uses the same mass air flow meter as the 2AZ-FE engine. For details, see page EG-38.
Crankshaft Position Sensor
The timing rotor of the crankshaft consists of 34 teeth, with 2 teeth missing. The crankshaft position sensor
outputs the crankshaft rotation signals every 10
, and the missing teeth are used to determine the
top-dead-center.

ENGINE - 2GR-FE ENGINE
285EG82285EG83
Intake VVT Sensor (Bank 1)
Timing Rotor
RH BankTiming RotorExhaust VVT Sensor (Bank 1)
RH Bank
285EG84
VVT Sensor Signal Plate (720 CA)
VVT
Sensor
0 V
Crankshaft
Position
Sensor
0 V180
CA 60 CA
60 CA180 CA 120 CA120
CA
360
CA 360 CA
10
CAE G - 111
Intake and Exhaust VVT Sensors
1) General
The MRE (Magnetic Resistance Element) type intake and exhaust VVT sensors are used. To detect the
camshaft position, a timing rotor that is secured to the camshaft in front of the VVT controller is used
to generate 6 (3 Hi Output, 3 Lo Output) pulses for every 2 revolutions of the crankshaft.
Sensor Output Waveforms

ENGINE - 2GR-FE ENGINE
271EG160
Timing Rotor
Intake VVT
Sensor
VC
VV1+
VV1 -ECM
Intake VVT Sensor (Bank 1) EG-112
2) MRE Type VVT Sensor
The MRE type VVT sensor consists of an MRE, a magnet and a sensor. The direction of the magnetic
field changes due to the different shapes (protruded and non-protruded portions) of the timing rotor,
which passes by the sensor. As a result, the resistance of the MRE changes, and the output voltage to
the ECM changes to Hi or Lo. The ECM detects the camshaft position based on this output voltage.
The differences between the MRE type VVT sensor and the pick-up coil type VVT sensor used on
the conventional models are as follows.
ItemSensor TypeItemMREPick-up Coil
Signal OutputConstant digital output starts from
low engine speeds.Analog output changes with the
engine speed.
Camshaft Position
Detection
Detection is made by comparing
the NE signals with the Hi / Lo
output switch timing due to the
protruded / non-protruded portions
of the timing rotor, or made based
on the number of the input NE
signals during Hi / Lo outputs.
Detection is made by comparing
the NE signals with the change of
waveform that is output when the
protruded portion of the timing
rotor passes.
Wiring Diagram

CHASSIS - 4WD SYSTEMCH-69
4. Function of Main Components
ComponentFunction
Combination
4WD LOCK
Indicator LightIlluminates to inform the driver of the 4WD LOCK mode control.Combination
Meter4WD
Warning LightIlluminates to warn the driver of a malfunction in the 4WD system.
Speed Sensor (4)Detects the wheel speed of each 4 wheel.
Steering Angle SensorDetects the direction and angle of the steering wheel.
Yaw Rate & Deceleration SensorDetects the vehicle’s longitudinal and lateral acceleration.
Crankshaft Position SensorDetects the engine speed and outputs it to the ECM.
Accelerator Pedal Position SensorDetects the accelerator pedal position and outputs it to the ECM.
Throttle Position SensorDetects the throttle valve position and outputs it to the ECM.
Park / Neutral Position SwitchDetects the neutral position of the transaxle and outputs it to the
ECM.
Stop Light SwitchDetects the brake pedal depressing signal.
Parking Brake SwitchDetects when the parking brake lever is pulled up.
Four-wheel Drive Lock SwitchSwitches between the AUTO and LOCK modes.
4WD ECU
Controls the amperage that is applied to the electromagnetic
solenoid of the electric control coupling based on the signals
provided by the sensors in order to optimally distribute drive torque
in accordance with driving conditions.
ECMOutputs signals such as the shift position signal, throttle position
signal, and crankshaft position signal to the 4WD ECU.
Skid Control ECUOutputs signals such as the vehicle speed signal and deceleration
signal to the 4WD ECU.
Electric Control CouplingDistributes drive torque in accordance with the amperage applied
by the 4WD ECU.