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DTC C1A4A: Skid Control Buzzer Circuit [09/2014 - 11/2017]: Description

Based on dynamic radar cruise control system operation, the driving support ECU assembly provides warnings to the driver by sending a request signal to the millimeter wave radar sensor assembly to sound the skid control buzzer.

When the millimeter wave radar sensor assembly detects a malfunction in the skid control buzzer circuit, a malfunction signal is sent to the driving support ECU assembly, and this DTC is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A4A Skid Control Buzzer Circuit When the cruise control switch is on and the vehicle is being driven at a speed of 36 km/h (22 mph) or more, a skid control buzzer assembly circuit malfunction signal is received from the millimeter wave radar sensor assembly for 1 second or more.
  • Harness or connector
  • Skid control buzzer
  • Millimeter wave radar sensor assembly
  • Driving support ECU assembly