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DTC U0100/92: Lost Communication with ECM/PCM "A"; DTC U0129/93: Lost Communication with Brake System Control Module: Procedure

RECONFIRM DTC
1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Check for DTCs.
  OK
  
  DTC U0100/92 and/or U0129/93 is not output.
NG → See step 3

OK → See step 2
CHECK FOR INTERMITTENT PROBLEMS. Refer to HOW TO PROCEED WITH TROUBLESHOOTING
GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING