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Home >> Lexus >> 2015 >> GS 450h Base >> 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 C15B2/72: ECU Malfunction(Internal Line); DTC C15B3/73: ECU Malfunction (Substrate Temperature Sensor); DTC C15B5/82: ECU Malfunction (Flash Memory); DTC C15B6/83: ECU Malfunction (EEPROM) [09/2014 - ] >> Procedure
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DTC C15B1/71: ECU Malfunction(CPU); DTC C15B2/72: ECU Malfunction(Internal Line); DTC C15B3/73: ECU Malfunction (Substrate Temperature Sensor); DTC C15B5/82: ECU Malfunction (Flash Memory); DTC C15B6/83: ECU Malfunction (EEPROM) [09/2014 - ]: Procedure

  1. REPLACE FRONT STEERING CONTROL ECU 
    1. Replace the VGRS ECU (front steering control ECU) (Refer to REMOVAL [09/2014 - ] ).

    Result:  NEXT

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