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Home >> Toyota >> 2012 >> Prius V >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System (Diagnostic Codes & Symptom Tests) >> Meter / Gauge System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Skid Control ECU; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0151: Lost Communication with Airbag ECU >> Procedure

DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Skid Control ECU; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0151: Lost Communication with Airbag ECU: Procedure

  1. CONFIRM DTC OUTPUT 
    1. Check if CAN communication DTCs are output. Refer to DIAGNOSIS SYSTEM .

      Result

      Result Proceed to
      DTCs are output. A
      DTCs are not output. B

    B → See step   2 

    A → See step   3 

  2. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 
  3. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING