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Home >> Lexus >> 2019 >> GX 460 Base >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System (Diagnostic Codes & Circuit Tests) >> Pre-Collision System >> DTC C1A01: Driving Support ECU [08/2015 - 08/2019] >> Description
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DTC C1A01: Driving Support ECU [08/2015 - 08/2019]: Description

The driving support ECU uses the millimeter wave radar sensor assembly, lane recognition camera sensor assembly*1 and driver monitor camera*2 to detect obstacles in front of the vehicle and the direction that the driver 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.

  1. *1: w/ Lane Departure Alert System
  2. *2: w/ Driver Monitor Camera
DTC Code DTC Detection Condition Trouble Area
C1A01 While the initial check is running, the engine switch is on (IG) and the pre-collision system is operating, the driving support ECU detects an internal malfunction for 1 second. Driving support ECU