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DTC C1A0A: Front Radar Sensor Region Code Mismatch [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 sends pre-collision control operation signals.

When the millimeter wave radar sensor assembly is replaced with a new one, it acquires the country specification information from the driving support ECU. Also, when the driving support ECU is replaced with a new one, it receives country specification information from the main body ECU. When country specification information in the sensor and driving support ECU do not match, DTC C1A0A is output.

  1. *1: w/ Lane Departure Alert System
  2. *2: w/ Driver Monitor Camera
DTC Code DTC Detection Condition Trouble Area
C1A0A While the initial check is running, the engine switch is on (IG) and the pre-collision system is operating, the country specification information in the driving support ECU and millimeter wave radar sensor assembly do not match for 1 second.
  • Millimeter wave radar sensor assembly
  • Driving support ECU