DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0129: Lost Communication with Brake System Control Module: Description

If 2 or more DTCs are output during the DTC check, one side of the CAN branch wire may be open. (One side of the CANH [branch wire]/CANL [branch wire] of the ECU and/or sensor is open.)

DTC Code	DTC Detection Condition	Trouble Area
U0122	No communication from skid control ECU	Power source circuit of skid control ECU One side of CAN branch wire of other systems Skid control ECU Skid control ECU branch wire or connector
U0129	No communication from skid control ECU	Power source circuit of skid control ECU One side of CAN branch wire of other systems Skid control ECU Skid control ECU branch wire or connector