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Home >> Subaru >> 2017 >> BRZ Premium >> Repair and Diagnosis >> Engine Mechanical >> Starter >> Entry Start System Start System (Keyless Start) >> Entry & start system (start function) >> DTC U0073 Control Module Communication Bus "A" off; 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 U0422 Invalid Data Received From Body Control Module >> Inspection steps
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Inspection steps

CAUTION:
  • After repair, perform the [DTC output confirmation operation], and check that the DTC is not output.
  1. DTC check
    1. Record the output DTC. (Refer to DIAGNOSIS SYSTEM )

    Next

    Go to "CAN communication system (How to troubleshoot)" (Refer to How to troubleshoot )

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