Toyota Camry Hybrid AHV40 Manual page 223

5. Main Component of Engine Control System
General
The main components of the 2AZ-FXE engine control system are as follows:
Components
THS ECU
Oxygen Sensor
(Bank 1, Sensor 2)
Air Fuel
Ratio Sensor
(Bank 1, Sensor 1)
Mass Air Flow Meter
Crankshaft
Position Sensor
(Rotor Teeth)
Camshaft
Position Sensor
(Rotor Teeth)
Engine Coolant
Temperature Sensor
Intake Air
Temperature Sensor
Knock Sensor
Throttle
Position Sensor
Injector
ENGINE - 2AZ-FXE ENGINE
Outline Quantity
32-bit CPU
Cup Type
with Heater
Planar Type
with Heater
Hot-wire Type
Pick-up Coil Type
(36-2)
Pick-up Coil Type
(36-2)
Thermistor Type
Thermistor Type
Built-in
Piezoelectric Type
(Flat Type)
No-contact Type
12-Hole Type
The THS ECU optimally controls the SFI,
ESA and ISC to suit the operating
1
conditions of the engine in accordance
with the signals provided by the sensors.
This sensor
concentration in the exhaust emission by
1
measuring the electromotive force which
is generated in the sensor itself.
As with the oxygen sensor, this sensor
detects the oxygen concentration in the
1 exhaust emission. However, it detects the
oxygen concentration in the exhaust
emission linearly.
This sensor has a built-in hot-wire to
1
directly detect the intake air mass.
This sensor detects the engine speed and
1
performs the cylinder identification.
This sensor performs
1
identification.
This sensor detects the engine coolant
1 temperature by means of an internal
thermistor.
This sensor detects the intake air
1 temperature by means of an internal
thermistor.
This sensor detects an occurrence of the
engine knocking indirectly from the
1
vibration of the cylinder block caused by
the occurrence of engine knocking.
This sensor detects the throttle valve
1
opening angle.
The injector is an electromagnetically-
operated nozzle which injects fuel in
4
accordance with signals from the THS
ECU.
EG-35
Function
detects the oxygen
the cylinder