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Home >> Lexus >> 2015 >> RC 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Variable Gear Ratio Steering System - Diagnostic Codes & Symptom Tests >> Variable Gear Ratio Steering System >> DTC C15B1: ECU Malfunction (CPU); DTC C15B3: ECU Malfunction (Substrate Temperature Sensor); DTC C15B5: ECU Malfunction (Flash Memory); DTC C15B6: ECU Malfunction (EEPROM) [09/2020 - ] >> Procedure
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DTC C15B1: ECU Malfunction (CPU); DTC C15B3: ECU Malfunction (Substrate Temperature Sensor); DTC C15B5: ECU Malfunction (Flash Memory); DTC C15B6: ECU Malfunction (EEPROM) [09/2020 - ]: Procedure

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

      Refer to REMOVAL [09/2014 - ]

      Result

      Proceed to
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    Result: 

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