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Home >> Toyota >> 2015 >> Yaris LE, 4D Hatchback >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge / Display - (Diagnostic Codes & Symptom Tests) >> METER / GAUGE SYSTEM (for Hatchback) >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0151: Lost Communication with Airbag ECU [07/2014 - ] >> Procedure

DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0151: Lost Communication with Airbag ECU [07/2014 - ]: Procedure

  1. CONFIRM DTC OUTPUT 
    1. Check DTC. Refer to DTC CHECK / CLEAR [07/2014 - ] .
      Result Proceed to
      CAN communication DTC is not output A
      CAN communication DTC is output B

    B → See step   2 

    A → See step   3 

  2. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2014 - ] 
  3. USE SIMULATION METHOD TO CHECK. Refer to  DIAGNOSIS SYSTEM [07/2014 - ]