DTC U0100 Communication Stop from ECM to Distance Control ECU, VSC

DTC U0122 Lost Communication with Vehicle Dynamics Control Module

This DTC is output when a communication malfunction occurs between the sensors and ECUs.

DTC Code	DTC Detection Condition	Trouble Area
U0100	The vehicle speed is 50 km/h (30 mph) or more with the cruise control main switch on (vehicle-to-vehicle distance control mode) and communication from the ECM to the distance control ECU stops.	Distance control ECU CAN communication system ECM
U0122	The vehicle speed is 50 km/h (30 mph) or more with the cruise control main switch on (vehicle-to-vehicle distance control mode) and communication from the master cylinder solenoid (skid control ECU) to the ECM stops.	Master cylinder solenoid (skid control ECU) CAN communication system ECM
U0123	While cruise control is in operation (vehicle-to-vehicle distance control mode), the data sent from the yaw rate sensor to the distance control ECU is abnormal.	Distance control ECU Yaw rate sensor CAN communication system ECM
U0126	While cruise control is in operation (vehicle-to-vehicle distance control mode), the data sent from the steering angle sensor to the distance control ECU is abnormal.	Distance control ECU Steering angle sensor CAN communication system ECM
U1101	The vehicle speed is 50 km/h (30 mph) or more with the cruise control main switch on (vehicle-to-vehicle distance control mode) and communication from the distance control ECU to the ECM stops.	Distance control ECU CAN communication system ECM

1.CHECK DTC (CAN COMMUNICATION SYSTEM)

Use the intelligent tester to check if the CAN communication system is functioning normally ( for LHD, for RHD).

B

GO TO CAN COMMUNICATION SYSTEM ()

C

GO TO CAN COMMUNICATION SYSTEM ()

A

USE SIMULATION METHOD TO CHECK ()