Toyota PAB4-Toyota RAV4
1. Operation of the car
2. Maintenance
3. Engines
4. Cooling systems and conditioning
5. Fuel system and system of production of the fulfilled gases
6. System of ignition
7. The control system and decrease in toxicity of the fulfilled gases
   General information
   Technical characteristics
   System of onboard Diagnostics (OBD)
   Information sensors and executive stroystvo
      Information sensors
      Actuation mechanisms
   Codes of malfunctions of the OBD-II system
   Control unit of the engine (PCM)
   Sensors and valves of system of injection of fuel (EFI)
   System of compulsory ventilation of Carter (PCV)
   System of recirculation of the fulfilled gases (EGR) on models since 2001
   System of catching of vapors of fuel (EVAP)
   Catalytic converter
8. Coupling
9. Transmission
10. Driveshaft and shaft of the drive of driving wheels
11. Brake system
12. Suspension bracket
13. Steering and running gear
14. Body
15. Electric equipment
Schemes of electric equipment


Toyota RAV4>> The control system and decrease in toxicity of the fulfilled gases>> Information sensors and executive stroystvo>> Information sensors
Oxygen sensors (O2S — Oxidant Sensor) – represent solid electrolyte from ZrO — ceramics. At high temperature this electrolyte becomes electroconductive and generates a characteristic galvanic charge which is an indicator of content of oxygen in the fulfilled gases.
The sensor of provision of a bent shaft (CKP — Crankshaft Position Sensor) – tells PCM information on situation and frequency of rotation of a bent shaft.
The sensor of position of the camshaft (CMP — Camshaft Position Sensor) on models since 1998 of release develops impulses on the basis of which PCM identifies the first cylinder and time of opening of a nozzle.
The sensor of fuel-air mix (A/F Sensor — Air/Fuel Sensor) on models since 2001 is installed in the top part of catalytic converter and works similar to the oxygen sensor.
The sensor of temperature of cooling liquid (ECT — Engine Coolant Temperature) controls temperature of cooling liquid, and, on the basis of a PCM sensor signal, changes a ratio of air and fuel in mixes, a corner of an advancing of ignition and puts system of recirculation of the fulfilled gases (EGR) in action.
The sensor of temperature of the air coming to the engine (IAT — Intake Air Temperature) on models till 2001 transfers information on temperature of the air coming to the engine. PCM on the basis of the obtained information operates a fuel stream, changes a corner of an advancing of ignition and puts system of repeated combustion of the fulfilled gases (EGR) in action.
The sensor of provision of a butterfly valve (TPS — Throttle Position Sensor) transfers information on the basis of which PCM defines when the butterfly valve is closed, completely open or is in intermediate positions.
The sensor of absolute pressure (MAP — Manifold Absolute Pressure) on models till 2001 measures amount (volume) of the air coming to the engine in an inlet collector.
The air consumption measuring instrument sensor (MAF — Mass Airflow Sensor) on models since 2001 measures the mass of the air coming to the engine.
The car speed sensor (VSS — Vehicle Speed Sensor) measures and transfers PCM information on the instantaneous velocity of the car.
The sensor of control of pressure of vapors of fuel (Vapor Pressure Sensor) is used for control of pressure of vapors in system of catching of vapors of fuel. PCM, on the basis of the obtained information, operates vacuum valves (VSV) in system of catching of vapors of fuel.
The switch of the amplifier of steering (PSP — Power Steering Pressure) is used for increase in frequency of rotation of idling when maneuvering the car.
Transmission sensors. In addition to the sensor of speed of the PCM car obtains information from the following sensors in the transmission: sensor of frequency of rotation of a clutch coupling and sensor of speed of the car.