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Home >> Lexus >> 2016 >> LS 600h >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes >> Pre-Collision System >> DTC C1A01: Driving Support ECU [09/2015 - ] >> Description

DTC C1A01: Driving Support ECU [09/2015 - ]: Description

The driving support ECU uses the front millimeter wave radar sensor, object recognition camera and driver monitor camera to detect obstacles in front of the vehicle and the direction that the driver's head is facing.

Based on this information, the driving support ECU calculates the risk of a collision and operates the pre-collision system when it determines that the risk is high.

When DTC C1A01 is detected, the driving support ECU only detects the "Pre-Collision 2" DTC malfunctions.

DTC Code DTC Detection Condition Trouble Area
C1A01 While initial check is running, power switch is on (IG) and pre-collision system is operating, driving support ECU detects an internal malfunction for 1 second Driving support ECU