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Home >> Lexus >> 2012 >> LS 460 AWD >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Electric Power Control System (Diagnostic Codes) >> Electric Power Control System >> DTC U0100, U0129, U0131, U0142, U0164, U1104, U1111: Lost Communication with ECM/PCM "A"; Lost Communication with Brake System Control Module; Lost Communication with Power Steering Control Module; Lost Communication with Gateway "A"; Lost Communication with HVAC Control Module; Lost Communication with Driving Support ECU; Lost Communication with Front Controller Module >> Procedure

DTC U0100, U0129, U0131, U0142, U0164, U1104, U1111: Lost Communication with ECM/PCM "A"; Lost Communication with Brake System Control Module; Lost Communication with Power Steering Control Module; Lost Communication with Gateway "A"; Lost Communication with HVAC Control Module; Lost Communication with Driving Support ECU; Lost Communication with Front Controller Module: Procedure

  1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM) 
    1. Check for DTCs related to the CAN communication system. Refer to DIAGNOSIS SYSTEM .

      OK

      DTC is not output.

    NG → See step   2 

    OK → END 

  2. GO TO CAN COMMUNICATION SYSTEM. Refer to  PRECAUTION