DTC U1102: Lost Communication with Radar Sensor: Description
WARNING: This page is about a different car, the 2007 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
The laser 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 curve radius information based on signals from the steering wheel and yaw rate sensor. The distance control ECU (cruise control ECU) transmits the current vehicle speed and curve radius information to the laser sensor.
DTC DETECTION CONDITION TABLE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U1102 | The ECM detects a communication error signal (from the distance control ECU (cruise control ECU) to the laser sensor) for 0.15 sec. or more while the dynamic laser cruise control is in operation |
|