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 demands 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 DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P1615 | While dynamic radar cruise control is either preparing, if communication data from distance control ECU is inconsistent logically for certain amount of time or more, ECM records logical error code |
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| U1101 | While dynamic radar cruise control is either preparing, if communication data from distance control ECU is invalid for certain amount of time or more, ECM records communication cut off code |
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