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Home >> Lexus >> 2017 >> GS 450h Base >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Pre-Collision System (Diagnostic Codes & Circuit Tests) >> Pre-Collision System >> DTC C1A50: Brake System [09/2014 - 10/2015] >> Procedure

DTC C1A50: Brake System [09/2014 - 10/2015]: Procedure

  1. CHECK FOR DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) 
    1. Clear the DTCs (See page. Refer to DTC CHECK / CLEAR [09/2014 - ] ).
    2. Check for DTCs (See page. Refer to DTC CHECK / CLEAR [09/2014 - ] ).

      OK

      Electronically controlled brake system DTCs are not output.

    Result:  OK

    OK 

    REPLACE DRIVING SUPPORT ECU 

    (See page. Refer to REMOVAL [09/2014 - 10/2015] )

    Result:  NG

    NG 

    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM 

    (See page. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ] )