DTC C1A4A: Skid Control Buzzer Circuit [07/2015 - ]: Description

The driving support ECU assembly operates the pre-collision alarm control by sending a buzzer request signal to the skid control buzzer assembly.

If the driving support ECU assembly detects a malfunction in the skid control buzzer assembly circuit, it stores DTC C1A4A.

DTC No.	DTC Detection Condition	Trouble Area
C1A4A	When the engine switch is on (IG) and the pre-collision alarm control is operating, either of the following conditions is met: A buzzer request signal is sent to the skid control buzzer assembly but the buzzer does not sound for 1 second or more. A buzzer request signal is not sent to the skid control buzzer assembly but the buzzer sounds for 1 second or more.	Skid control buzzer assembly Driving support ECU assembly Wire harness or connector