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Home >> Scion >> 2014 >> FR-S Standard Trans >> Repair and Diagnosis (Single Page) >> Steering >> Electronic Steering >> Power Steering System (Diagnostic Codes & Circuit Tests) >> Power Steering System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0416: Invalid Data Received from Vehicle Dynamics Control Module >> Procedure

DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0416: Invalid Data Received from Vehicle Dynamics Control Module: Procedure

  1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM) 
    1. Clear the DTC(s). Refer to DTC CHECK / CLEAR [07/2013 - ] .
    2. Check for DTCs. Refer to DTC CHECK / CLEAR [07/2013 - ] .

      OK

      DTC is not output.

    NG → See step   3 

    OK → See step   2 

  2. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2013 - 12/2013] 
  3. GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2013 - 12/2013]