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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 - ] >> Description

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

Based on pre-collision control, the driving support ECU assembly informs to the driver to be careful. The driving support ECU assembly performs this by sending a sounding signal to the skid control ECU to sound the skid control buzzer.

When the skid control ECU assembly detects a malfunction in the skid control buzzer circuit, a malfunction signal is sent to the driving support ECU assembly, and a DTC is output. Although the skid control ECU assembly sends a malfunction signal to the driving support ECU assembly, the ABS does not output a relevant malfunction detection DTC.

DTC Code DTC Detection Condition Trouble Area
C1A4A While engine switch is on (IG), skid control buzzer circuit malfunction signal is received by skid control ECU assembly for 1 sec.
  • Skid control buzzer
  • Skid control buzzer circuit
  • Skid control ECU assembly
  • Driving support ECU assembly