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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 235 (Power Steering) >> Electronic Power Steering System >> DTC C1528/12 Motor Rotation Angle Sensor Malfunction >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONNECTOR CONNECTION CONDITION 
    1. Check the installation condition of the motor rotation angle sensor connector.

      OK: 

      Motor rotation angle sensor connector is securely connected to the power steering ECU. 

      Result 

      RESULT CHART

      Result Proceed to
      NG A
      OK B

    B: Go to step   3

    A: Go to next step 

  2. RECONFIRM DTC 
    1. Reinstall motor rotation angle sensor connector.
    2. Check for DTC.

      OK: 

      DTC is not output. 

      Result 

      RESULT CHART

      Result Proceed to
      DTC is output A
      DTC is not output B

    B: END 

    A: Go to next step 

  3. READ VALUE OF TECHSTREAM (MOTOR ROTATION ANGLE SENSOR) 
    1. Connect the Techstream (with CAN VIM) to the DLC3.
    2. Turn the ignition switch ON.
    3. Turn the Techstream on.
    4. Check the motor rotation angle. Enter the following menus: Chassis / EMPS / Data List.

      EMPS 

      DIAGNOSTIC NOTE

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Motor Rotation Angle Motor Rotation Angle:
      Min.: 0 deg
      Max.: 1441.77 deg      		 During steering operation, motor rotation angle value changes from 0 to 1441.77 deg Steering wheel is turned

      OK: : During steering operation, motor rotation angle value changes from 0 to 360° 

    NG: REPLACE STEERING COLUMN ASSEMBLY 

    OK: REPLACE POWER STEERING ECU 

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