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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 C1A31: Driver Monitor Camera [08/2015 - 08/2019] >> Description
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DTC C1A31: Driver Monitor Camera [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 driver monitor camera, DTC C1A31 is stored.

  1. *: w/ Lane Departure Alert System
DTC Code DTC Detection Condition Trouble Area
C1A31 While the engine switch is on (IG), the driving support ECU receives information that there is a malfunction in the driver monitor camera for 1 second (6 trip detection logic).
  • Harness or connector
  • Driver monitor camera
  • Driver monitor ECU
  • Driving support ECU