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Home >> Lexus >> 2012 >> HS 250h >> Repair and Diagnosis (Single Page) >> Steering >> Power Steering >> Power Steering System (Diagnostic Codes & Circuit Tests) >> Power Steering System >> DTC U0129, U0293, U1104: Lost Communication with Brake System Control Module; Lost Communication with HV ECU; Lost Communication with Driving Support ECU >> Procedure

DTC U0129, U0293, U1104: Lost Communication with Brake System Control Module; Lost Communication with HV ECU; Lost Communication with Driving Support ECU: Procedure

  1. CHECK FOR DTC 
    1. Clear the DTCs. Refer to DTC CHECK/CLEAR .
    2. Check for DTCs. Refer to DTC CHECK/CLEAR .

      OK

      DTC is not output.

    NG → See step   2 

    OK → CHECK INTERMITTENT PROBLEMS 

  2. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING