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Home >> Lexus >> 2019 >> GS 350 Base, RWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes & Circuit Tests >> Pre-Collision System >> DTC C1A20: Object Recognition ECU [09/2014 - 10/2015] >> Description
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DTC C1A20: Object Recognition ECU [09/2014 - 10/2015]: Description

This DTC is stored when the driving support ECU receives information that the lane recognition camera sensor assembly has an internal malfunction.

DTC Code DTC Detection Condition Trouble Area
C1A20
  • Pre-collision system:
    • The engine switch is on (IG).
  • Radar cruise control system:
    • The vehicle is being driven at a speed of approximately 50 km/h (31 mph) or more and the ACC main switch is on.
  • Lane keeping assist system:
    • The vehicle is being driven at a speed of approximately 50 km/h (31 mph) or more and the lane keeping assist main switch is on.
  1. When the conditions above are met, the driving support ECU detects a problem in the signal sent from the lane recognition camera sensor assembly.
  • Lane recognition camera sensor assembly
  • Driving support ECU