DTC U1102 Lost Communication with Radar Sensor: Description
The millimeter wave radar sensor and distance control ECU (cruise control ECU) transmit the data for general vehicle control and diagnosis function along the communication line. The distance control ECU (cruise control ECU) determines the presumed R information based on the signal from the steering wheel and yaw rate sensor. The distance control ECU (cruise control ECU) transmits the current vehicle speed and presumed R information to the millimeter wave radar sensor.
DTC DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U1102 | ECM detects communication error signal (from distance control ECU (cruise control ECU) to millimeter wave radar sensor) for 0.15 sec. or more while dynamic radar cruise control is in operation |
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