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DTC C1A4A: Skid Control Buzzer Circuit [10/2014 - ]: Procedure

  1. PERFORM ACTIVE TEST USING TECHSTREAM (SKID CONTROL BUZZER) 
    1. Using the Techstream, enter the following menus: Chassis / ABS/VSC/TRAC / Active Test.
      ABS/VSC/TRAC

      Tester Display Test Part Control Range Diagnostic Note
      Buzzer Skid control buzzer sound ON / OFF -

      OK

      Skid control buzzer sounds.

    NG → See step   2 

    OK → See step   3 

  2. GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - ] 
  3. REPLACE DRIVING SUPPORT ECU. Refer to  REMOVAL [10/2014 - ]