Typical Malfunction Thresholds

U0073: Control Module Communication Bus "A" Off 

• The CAN controller performs confirmation of Bus by 50msec period and becomes Bus off consecutively.

  1 count or more

U0401: Invalid Data Received From ECM/PCM "A" 

• CAN data from ECM

  Did not change

U0416: Invalid Data Received From Vehicle Dynamics Control Module 

• CAN data from Vehicle Dynamics Control Module

  Did not change