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ECM Terminal Arrangement

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. Instrument panel junction block ASSY, Main body ECM (multiplex network body computer)
    Fig 1: ECM Terminal Layout
    G08557390Courtesy of SUBARU OF AMERICA, INC.
    1. Check the main body ECM (multiplex network body computer)
      1. Remove the main body ECM (Multiplex network body computer). (Refer to REMOVAL )
      2. Measure the voltage and resistance between terminals.
        STANDARD VALUE

        Terminal No. Item Inspection conditions Standard value
        MB-1 - chassis ground Voltage Always 11 to 14V
        MB-8 - chassis ground Voltage IG ON 11 to 14V
        MB-11 - chassis ground Resistance Always Less than 1 Ω
        MB-32 - chassis ground Voltage Always 11 to 14V
      3. Install the main body ECM (Multiplex network body computer).
      4. Measure the waveform between terminals using an oscilloscope.
      STANDARD VALUE

      Terminal No. Item Inspection conditions Standard value
      D5-4 - D6-1 Waveform IG ON Pulse generation
  2. Power window regulator master switch ASSY
    Fig 2: Identifying Power Window Regulator Master Switch ASSY Connector E8 Terminals
    G08557391Courtesy of SUBARU OF AMERICA, INC.
    1. Check the power window regulator master switch ASSY
      1. Disconnect the connector F6 from the power window regulator master switch ASSY.
      2. Measure the voltage and resistance between terminals.
      STANDARD VALUE

      Terminal No. Item Inspection conditions Standard value
      F6-5 - chassis ground Resistance Always Less than 1 Ω
      F6-12-F6-5 Voltage Always 11 to 14V
  3. Power window regulator switch ASSY
    Fig 3: Identifying Power Window Regulator Switch ASSY Connector F6 Terminals
    G08557392Courtesy of SUBARU OF AMERICA, INC.
    1. Inspection of the power window regulator switch ASSY
      1. Disconnect the connector E8 from the power window regulator switch ASSY.
      2. Measure the voltage and resistance between terminals.
      STANDARD VALUE

      Terminal No. Item Inspection conditions Standard value
      F8-5 - chassis ground Resistance Always Less than 1 Ω
      E8-12-E8-5 Voltage Always 11 to 14V
  4. Collation ECM (Smart key computer ASSY) (with smart entry)
    Fig 4: Collation ECM Terminal Layout (With Smart Entry)
    G08557393Courtesy of SUBARU OF AMERICA, INC.
    1. Check the collation ECM (Smart key computer ASSY)
      1. Disconnect the connectors D41 and D48 from the collation ECM (Smart key computer ASSY).
      2. Measure the voltage and resistance between terminals.
      STANDARD VALUE

      Terminal No. Item Inspection conditions Standard value
      D41-5-D48-11 Voltage IG ON 11 to 14V
      D48-2-D48-11 Voltage Always 11 to 14V
      D48-11 - chassis ground Resistance Always Less than 1 Ω
  5. Steering lock actuator ASSY (with smart entry)
    Fig 5: Identifying Steering Lock Actuator ASSY Connector Terminals (With Smart Entry)
    G08557394Courtesy of SUBARU OF AMERICA, INC.
    1. Check the steering lock actuator ASSY
      1. Disconnect the connector D59 from the steering lock actuator ASSY.
      2. Measure the voltage and resistance between terminals.
      STANDARD VALUE

      Terminal No. Item Inspection conditions Standard value
      D59-1 - chassis ground Resistance Always Less than 1 Ω
      D59-6 - D59-1 Voltage IG ON 11 to 14V
      D59-7 - D59-1 Voltage Always 11 to 14V
  6. ID code box (Immobilizer code ECM) (with ID code box)
    Fig 6: Identifying ID Code Box Terminals
    G08557395Courtesy of SUBARU OF AMERICA, INC.
    1. Check the ID code box
      1. Disconnect the connector A30 of the ID code box.
      2. Measure the voltage between the terminals.
      STANDARD VALUE

      Terminal No. Item Inspection conditions Standard value
      A30-1 - A30-5 Voltage Always 11 to 14 V
      A30-5 - chassis ground Voltage Always 11 to 14 V
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