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Home >> Subaru >> 2020 >> BRZ tS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transaxle (Diagnostics)) >> Automatic Transmission System >> DTC U0073: Control Module Communication Bus "A" Off; DTC U0401: Invalid Data Received From ECM/PCM "A"; 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

Inspection steps

WARNING: This page is about a different variant/trim than selected.
  1. Read the diagnostic code
    1. Connect the SSM4 to the DLC3.
    2. Turn the ignition switch to ON.
    3. Read diagnostic codes according to SSM4 display. (Refer to CHECK LIST FOR INTERVIEW  )

    To CAN communication system (Refer to HOW TO TROUBLESHOOT )

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