U1102 / INF738
DTC U0235-737 Communication Error from Radar Sensor to Distance Control ECUDTC U1102-738 Communication Error from Distance Control ECU to Radar Sensor
DESCRIPTION
DTC Detection Condition:
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.
Wiring Diagram:
Step 1-2:
Step 3:
INSPECTION PROCEDURE
NOTE:
- When the distance control ECU (cruise control ECU) is replaced with a new one, initialization must be performed.
- When the millimeter wave radar sensor is replaced with a new one, adjustment of the radar sensor beam axis must be performed.