DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module [11/2013 - ]: Procedure

RECONFIRM DTC
1. Clear the DTCs. Refer to DTC CHECK / CLEAR [11/2013 - ] .
2. Check for DTCs. Refer to DTC CHECK / CLEAR [11/2013 - ] .
  OK
  
  DTC is not output.
NG → See step 3

OK → See step 2
CHECK FOR INTERMITTENT PROBLEMS. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2013 - ]
GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2013 - ]