Toyota RAV4 manuals

Toyota RAV4 Service Manual: System description

  1. Description

The eps (electronic power steering) system generates torque through the operation of the motor and the reduction gear installed on the column shaft in order to assist steering effort.

The power steering ecu determines directions and the amount of assisting power in accordance with vehicle speed signals and signals from the torque sensor built into the steering column assembly. As a result, the power steering adjusts the steering effort so that it is lighter during low speed driving and heavier during high speed driving.

  1. Power steering ecu: the power steering ecu calculates assisting power based on steering torque signals from the torque sensor and vehicle speed signals from the skid control ecu.
  2. Torque sensor: the torque sensor detects the steering effort generated when the steering wheel is turned and converts it to an electrical signal.
  3. Eps motor: the eps motor is activated by the current from the power steering ecu and generates torque to assist the steering effort.
  4. Motor rotation angle sensor: the motor rotation angle sensor consists of the resolver sensor, which excels in reliability and durability. The rotation angle sensor detects the rotation angle of the motor and outputs it to the power steering ecu. As a result, it ensures efficient eps control.
Parts location
System diagram ...

How to proceed with troubleshooting
Hint: Perform troubleshooting in accordance with the following flowchart. *: Use the intelligent tester. Vehicle brought to workshop Inspect battery voltage Standard voltage: 11 ...

Other materials:

Function summary
The following operations can be performed simply by carrying the electronic key on your person, for example in your pocket. (The driver should always carry the electronic key.) Locks and unlocks the side doors Locks and unlocks the back door Starts the engine Operation signals A bu ...

Terminals of ecu
Check instrument panel junction block (main body ecu) Measure the voltage of the connectors. If the result is not as specified, the junction block (main body ecu) may have a malfunction. ...

Radio operation
Select am or fm on the audio source selection screen to begin listening to the radio. Audio control screen Pressing the audio button displays the audio control screen from any screens of the selected source. Audio source selection screen appears Preset stations Scanning for recei ...

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