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DTC C1A4A: Skid Control Buzzer Circuit [11/2017 - 01/2023]: Description

Based on dynamic radar cruise control system operation, the driving support ECU assembly provides warnings to the driver by sounding the skid control buzzer.

DTC C1A4A is stored when a malfunction is detected in the skid control buzzer circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A4A Skid Control Buzzer Circuit While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, the driving support ECU assembly detects a malfunction in the skid control buzzer circuit for approximately 0.3 seconds or more.
  • Skid control buzzer
  • Harness or connector
  • Driving support ECU assembly