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Home >> Subaru >> 2016 >> BRZ Series.HyperBlue >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System (Heater, Ventilator And A/C) >> Heater & Air Conditioner System (For Automatic Air Conditioning System) >> DTC U0073: CAN Communication Error; DTC U0100: Lost Communication With ECM/PCM "A"; DTC U0101: Lost Communication With TCM; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0140: Lost Communication With Body Control Module; DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module; DTC U0401: Invalid Data Received From ECM/PCM "A"; DTC U0402: Invalid Data Received From TCM; DTC U0416: Invalid Data Received From Vehicle Dynamics Control Module; DTC U0422: Invalid Data Received From Body Control Module; DTC U0423: Invalid Data Received From Instrument Panel Cluster Control Module >> Inspection steps
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Inspection steps

  1. Checking diagnostic codes
    1. Clear the diagnostic code using the SSM3. (Refer to CHECK LIST FOR INTERVIEW  )
    2. Using SSM3, check the diagnostic code again. (Refer to CHECK LIST FOR INTERVIEW  )

      Criteria: Diagnostic code is not output.

      NOTE:
      • When the diagnostic code of abnormal CAN communication system is output, refer to "HOW TO TROUBLESHOOT " of the CAN communication system.
      • If the diagnostic code of abnormal CAN communication system and other diagnostic code are output at the same time, perform troubleshooting on other diagnostic code after recovery of abnormal CAN communication.

      NG: To CAN communication system (Refer to HOW TO TROUBLESHOOT )

      OK: See how to simulate trouble phenomenon (Refer to PROCEDURES FOR MALFUNCTION PHENOMENON SIMULATION )

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