Pre-Collision Safety System

DTC U1102 LOST COMMUNICATION WITH RADAR SENSOR

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The millimeter wave radar sensor and cruise control ECU (distance control ECU) transmit the data for general vehicle control and diagnosis function along the communication line.

The cruise control ECU (distance control ECU) determines the presumed R information based on the signal from the steering wheel and yaw rate sensor.

The cruise control ECU (distance control ECU) transmits the current vehicle speed and presumed R information to the millimeter wave radar sensor.

Wiring Diagram:

Step 1:

Step 2:

INSPECTION PROCEDURE