Typical Enabling Conditions

U0073: Control Module Communication Bus "A" Off 

• 12 V battery system voltage	9.0 V or more
  for time	1 sec. or more

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

• 12 V battery system voltage	9.0 V or more
  for time	1 sec. or more
  CAN BUS OFF (U0073)	No failure

U0416: Invalid Data Received From Vehicle Dynamics Control Module 

• 12 V battery system voltage	9.0 V or more
  for time	1 sec. or more
  CAN BUS OFF (U0073)	No failure