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Home >> Toyota >> 2017 >> Prius V Two >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Meter / Gauge / Display - (Diagnostic Codes, Circuit Tests & 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 U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Airbag ECU; DTC U0163: Lost Communication with Navigation Control Module; DTC U023A: Lost Communication with Front Camera Module; DTC U1104: Lost Communication with Driving Support ECU [08/2015 - ] >> Procedure
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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 U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Airbag ECU; DTC U0163: Lost Communication with Navigation Control Module; DTC U023A: Lost Communication with Front Camera Module; DTC U1104: Lost Communication with Driving Support ECU [08/2015 - ]: Procedure

  1. CONFIRM DTC OUTPUT 
    1. Check if CAN communication DTCs are output. Refer to DIAGNOSIS SYSTEM [08/2015 - ] .

      Result

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

    B → Refer to   2 

    A → Refer to   3 

  2. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ] 
  3. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]