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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 C1A20: Object Recognition ECU [08/2015 - 08/2019] >> Description
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DTC C1A20: Object Recognition ECU [08/2015 - 08/2019]: Description

The driving support ECU uses the millimeter wave radar sensor assembly, lane recognition camera sensor assembly and driver monitor camera* 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 sends pre-collision control operation signals.

When the driving support ECU receives information that there is a malfunction in the lane recognition camera sensor assembly, DTC C1A20 is stored.

  1. *: w/ Driver Monitor Camera
DTC Code DTC Detection Condition Trouble Area
C1A20 While the engine switch is on (IG), the driving support ECU receives a signal indicating a malfunction in the lane recognition camera sensor assembly for 1 second or more.
  • Lane recognition camera sensor assembly
  • Driving support ECU