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Home >> Lexus >> 2017 >> LS 460 Base, AWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System (W/ Driver Monitor Camera) - Diagnostic Codes >> PRE-COLLISION SYSTEM(w/ Driver Monitor Camera) >> DTC C1A4A: Skid Control Buzzer Circuit [09/2015 - ] >> Procedure

DTC C1A4A: Skid Control Buzzer Circuit [09/2015 - ]: Procedure

  1. PERFORM ACTIVE TEST USING TECHSTREAM (SKID CONTROL BUZZER) 
    1. Enter the following menus: Chassis / ABS/VSC/TRAC / Active Test.
    2. Select "Buzzer", and perform the Active Test (Refer to DATA LIST / ACTIVE TEST [09/2015 - ] ).

      OK

      Skid control buzzer sounds.

    Result:  OK

    OK 

    REPLACE DRIVING SUPPORT ECU ASSEMBLY 

    (Refer to REMOVAL [09/2015 - ] )

    Result:  NG

    NG 

    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - ] )