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DTC P1615 Communication Error from Distance Control ECU to ECM; DTC U1101 Lost Communication with Distance Control ECU: Description

The distance control ECU receives information about the area in front of the vehicle from the millimeter wave radar sensor and then sends a brake control demand signal (deceleration demand) and diagnosis signals, such as millimeter wave radar sensor grime signals or millimeter wave radar sensor malfunction signals, to the ECM.

DTC TROUBLE DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
P1615 While the dynamic radar cruise control is either preparing for operation or operating, if communication data from the distance control ECU is logically inconsistent for a certain amount of time, the ECM records this logical error code
  • Communication circuit
  • Distance control ECU
  • ECM
U1101 While the dynamic radar cruise control is either preparing for operation or operating, if communication data from the distance control ECU is invalid for a certain amount of time, the ECM records this communication cut off code
  • Communication circuit
  • Distance control ECU
  • ECM