DTC U0100: Lost Communication with ECM; DTC U0129: Lost Communication with Brake System Control Module [12/2015 - 08/2016]: Procedure

1. Clear the DTCs (Refer to DTC CHECK / CLEAR [12/2015 - ] ).
2. Check for DTCs.

   OK

   DTC U0100 or U0129 is not output.

Result: 

OK 

CHECK FOR INTERMITTENT PROBLEMS 

(Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [12/2015 - ] )

Result: 

NG 

GO TO CAN COMMUNICATION SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2015 - 08/2016] )