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Home >> Subaru >> 2016 >> BRZ Series.HyperBlue >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Lin Communication System) >> Large-Scale Multiplex Communication System For Vehicle Body [LIN] >> Checking/Clearing Diagnostic Codes

Checking/Clearing Diagnostic Codes

WARNING: This page is about a different car, the 2014 Subaru BRZ. However, it is still accessible from the selected car via links, so may be relevant.
  1. Checking diagnostic codes (with the SSM3)
    1. DTC check for the main body ECM (Multiplex network body computer)
      1. Connect SSM3 to the data link connector with IG OFF.
      2. Turn IG to ON, and turn on the SSM3.
      3. Follow the instruction on SSM3 screen. Select [Each System Check]→[Integ. unit mode]→[Diagnostic Code(s) Display], and then read DTC.
        NOTE: If meaningless DTC is displayed, the main body ECM (Multiplex network body computer) may be defective.
    2. DTC check for the collation ECM (smart key computer ASSY)
      1. Connect SSM3 to the data link connector with IG OFF.
      2. Turn IG to ON, and turn on the SSM3.
      3. Follow the instruction on SSM3 screen. Select [Each System Check]→[Keyless access system]→[Collation ECM]→[Diagnostic Code(s) Display], and then read DTC.
        NOTE:
        • Collation ECM (Smart key computer ASSY) also outputs DTCs for the steering lock ECM (Steering lock actuator ASSY).
        • If meaningless DTC is displayed, the collation ECM (Smart key computer ASSY) may be defective.
  2. Delete recorded diagnostic codes (with the SSM3).
    CAUTION: To permanently clear DTCs indicating lost connection, "Clear ECM connection history" function must be used.
    1. Clearing DTC for the main body ECM (Multiplex network body computer)
      1. Connect SSM3 to the data link connector with IG OFF.
      2. Turn IG to ON, and turn on the SSM3.
      3. Follow the instruction on SSM3 screen. Select [Each System Check]→[Integ. unit mode]→[Clear Memory], and then clear DTC.
        CAUTION:
        • If deletion is not possible, retry it after turning the ignition to IG OFF and then on again.
        • Do not use the SSM3 to delete diagnostic codes until the cause of the trouble has been identified.
    2. Clearing DTC for the collation ECM (Smart key computer ASSY)
      1. Connect SSM3 to the data link connector with IG OFF.
      2. Turn IG to ON, and turn on the SSM3.
      3. Follow the instruction on SSM3 screen. Select [Each System Check]→[Keyless access system]→[Collation ECM]→[Clear Memory], and then clear DTC.
        CAUTION:
        • If deletion is not possible, retry it after turning the ignition to IG OFF and then on again.
        • Do not use the SSM3 to delete diagnostic codes until the cause of the trouble has been identified.
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