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Home >> Lexus >> 2020 >> LC 500h >> Repair and Diagnosis (Single Page) >> Steering >> Power Steering >> Variable Gear Ratio Steering System - Diagnostic Codes & Symptom Tests >> Variable Gear Ratio Steering System >> DTC C15B1/71: ECU Malfunction(CPU); DTC C15B3/73: ECU Malfunction(Substrate Temperature Sensor); DTC C15B5/82: ECU Malfunction(Flash Memory); DTC C15B6/83: ECU Malfunction(EEPROM) [01/2017 - 09/2018] >> Procedure
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DTC C15B1/71: ECU Malfunction(CPU); DTC C15B3/73: ECU Malfunction(Substrate Temperature Sensor); DTC C15B5/82: ECU Malfunction(Flash Memory); DTC C15B6/83: ECU Malfunction(EEPROM) [01/2017 - 09/2018]: Procedure

  1. REPLACE VGRS ECU (FRONT STEERING CONTROL ECU) 
    1. Replace the VGRS ECU (front steering control ECU).

      Refer to REMOVAL [01/2017 - 05/2023]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    END