DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module: Procedure
- RECONFIRM DTC
- Clear the DTCs. Refer to DTC CHECK / CLEAR .
- Check for DTCs.
OK
DTC is not output.
NG → See step 2
OK → CHECK FOR INTERMITTENT PROBLEMS
- GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING