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ECM Terminal Arrangement

  1. Power window regulator motor assembly LH (driver's seat)
    1. Disconnect the connector E5 of power window regulator motor assembly LH (driver's seat).
    2. Measure the resistance and voltage between terminals.
      Fig 1: Identifying Power Window Regulator Motor Assembly LH Connector Terminals (Driver's Seat)
      G08555579Courtesy of SUBARU OF AMERICA, INC.
      STANDARD VALUE

      Terminal No. (Terminal symbol) Inspection conditions Standard value
      E5-5 (VCC) ↔E5-4 (SGD) Always 11 to 14 V
      E5-4 (SGD) ↔chassis ground Always Less than 1 Ω
      NOTE: If it is outside the standard values, the vehicle is defective.
    3. Connect the connector E5 of power window regulator motor assembly LH (driver's seat).
    4. Measure the voltage between the terminals.
      STANDARD VALUE

      Terminal No. (Terminal symbol) Inspection conditions Standard value
      E5-1 (WU) ↔E5-4 (SGD) IG ON, master switch OFF→UP (manual operation) 11 to 14 V →Less than 1 V
      E5-1 (WU) ↔E5-4 (SGD) IG ON, driver's seat door glass full open→master switch UP (automatic operation)→door glass fully closed 11 to 14 V→less than 1 V→11 to 14 V
      E5-3 (WD) ↔E5-4 (SGD) IG ON, master switch OFF→DOWN (manual operation) 11 to 14 V →Less than 1 V
      E5-3 (WD) ↔E5-4 (SGD) IG ON, driver's seat door glass fully closed→master switch DOWN (automatic operation)→door glass full open 11 to 14 V→less than 1 V→11 to 14 V
      NOTE: If the readout is not in the standard values, there is a failure in the power window regulator motor assembly LH (driver's seat)
  2. Power window regulator motor assembly RH (passenger's seat)
    1. Disconnect the connector F1 of the power window regulator motor assembly RH (passenger's seat).
    2. Measure the resistance and voltage between terminals.
      Fig 2: Identifying Power Window Regulator Motor Assembly RH Connector Terminals (Passenger's Seat)
      G08555580Courtesy of SUBARU OF AMERICA, INC.
      STANDARD VALUE

      Terminal No. (Terminal symbol) Inspection conditions Standard value
      F1-5 (VCC) ↔F1-4 (SGD) Always 11 to 14 V
      F1-4 (SGD) ↔chassis ground Always Less than 1 Ω
      NOTE: If it is outside the standard values, the vehicle is defective.
    3. Connect the connector F1 of power window regulator motor assembly RH (passenger's seat).
    4. Measure the voltage between the terminals.
      STANDARD VALUE

      Terminal No. (Terminal symbol) Inspection conditions Standard value
      F1-1 (WU) ↔F1-4 (SGD) IG ON, regulator switch OFF→UP (manual operation) 11 to 14 V →Less than 1 V
      F1-1 (WU) ↔F1-4 (SGD) IG ON, passenger's seat door glass full open→regulator switch UP (automatic operation)→door glass fully closed 11 to 14 V→less than 1 V→11 t o 14 V
      F1-3 (WD) ↔F1-4 (SGD) IG ON, regulator switch OFF→DOWN (manual operation) 11 to 14 V →Less than 1 V
      F1-3 (WD) ↔F1-4 (SGD) IG ON, passenger's seat door glass fully closed→regulator switch DOWN (automatic operation)→door glass full open 11 to 14 V→less than 1 V→11 t o 14 V
      NOTE: If the readout is not in the standard values, there is a failure in the power window regulator motor assembly RH (passenger's seat)
  3. Power window regulator master switch assembly
    1. Disconnect the connector E8 of power window regulator master switch assembly.
    2. Measure the resistance and voltage between terminals.
      Fig 3: Identifying Power Window Regulator Master Switch Assembly Connector Terminals
      G08555581Courtesy of SUBARU OF AMERICA, INC.
      STANDARD VALUE

      Terminal No. (Terminal symbol) Inspection conditions Standard value
      E8-12 (+B) ↔E8-5 (GND) IG ON 11 to 14 V
      F8-5 (GND) ↔chassis ground Always Less than 1 Ω
      NOTE: If it is outside the standard values, the vehicle is defective.
    3. Connect the connector E8 of power window regulator master switch assembly.
    4. Measure the voltage between the terminals.
      STANDARD VALUE

      Terminal No. (Terminal symbol) Inspection conditions Standard value
      E8-6 (WU) ↔E8-5 (GND) IG ON, master switch OFF→UP (manual operation) 11 to 14 V →Less than 1 V
      E8-6 (WU) ↔E8-5 (GND) IG ON, driver's seat door glass full open→master switch UP (automatic operation)→door glass fully closed 11 to 14 V→less than 1 V→11 to 14 V
      E8-7 (WD) ↔E8-5 (GND) IG ON, master switch OFF→DOWN (manual operation) 11 to 14 V →Less than 1 V
      E8-7 (WD) ↔E8-5 (GND) IG ON, driver's seat door glass fully closed→master switch DOWN (automatic operation)→door glass full open 11 to 14 V→less than 1 V→11 to 14 V
      NOTE: If the readout is out of standard, failure exists in power window regulator master switch assembly.
  4. Power window regulator switch assembly
    1. Disconnect the connector F6 of power window regulator switch assembly.
    2. Measure the resistance and voltage between terminals.
      Fig 4: Identifying Power Window Regulator Switch Assembly Connector Terminals
      G08555582Courtesy of SUBARU OF AMERICA, INC.
      STANDARD VALUE

      Terminal No. (Terminal symbol) Inspection conditions Standard value
      F6-12 (+B) ↔F6-5 (GND) IG ON 11 to 14 V
      F6-5 (GND) ↔chassis ground Always Less than 1 Ω
      NOTE: If it is outside the standard values, the vehicle is defective.
    3. Connect the connector F6 of power window regulator switch assembly.
    4. Measure the voltage between the terminals.
      STANDARD VALUE

      Terminal No. (Terminal symbol) Inspection conditions Standard value
      F6-6 (WU) ↔F6-5 (GND) IG ON, passenger's switch OFF→UP (manual operation) 11 to 14 V →Less than 1 V
      F6-6 (WU) ↔F6-5 (GND) IG ON, passenger's seat door glass full open→passenger's seat switch UP (automatic operation)→door glass fully closed 11 to 14 V→less than 1 V→11 to 14 V
      F6-7 (WD) ↔F6-5 (GND) IG ON, passenger's switch OFF→DOWN (manual operation) 11 to 14 V →Less than 1 V
      F6-7 (WD) ↔F6-5 (GND) IG ON, passenger's seat door glass fully closed→passenger's seat switch DOWN (automatic operation)→door glass full open 11 to 14 V→less than 1 V→11 to 14 V
      NOTE: If the readout is out of standard, failure exists in power window regulator switch assembly.
  5. Instrument panel junction block assembly, main body ECM (Network gateway computer)
    Fig 5: Identifying Instrument Panel Junction Block Assembly And Main Body ECM (Network Gateway Computer) Connector Terminals
    G08555583Courtesy of SUBARU OF AMERICA, INC.
    1. Inspection of the instrument panel junction block assembly and the main body ECM (network gateway computer)
      1. Remove the main body ECM (network gateway computer) from the instrument panel junction block assembly.
      2. Measure the voltage and resistance between terminals.
        STANDARD VALUE

        Terminal No. (Terminal symbol) Inspection conditions Standard value
        MB-1 (BECU) ↔chassis ground Always 11 to 14 V
        MB-8 (IG) ↔chassis ground IG OFF →IG ON Less than 1 V →11 to 14 V
        MB-9 (ACC) ↔chassis ground IG OFF →ACC ON Less than 1 V →11 to 14 V
        MB-11 (GND) ↔chassis ground Always Less than 1 Ω
        D5-22 (ACC) ↔chassis ground(1) IG OFF →ACC ON Less than 1 V →11 to 14 V
        (1) When there is a smart entry & start system
        NOTE: If it is outside the standard values, the vehicle is defective.
      3. Install the main body ECM (network gateway computer) on the instrument panel junction block assembly.
      4. Measure the voltage between the terminals.
        STANDARD VALUE

        Terminal No. (Terminal symbol) Inspection conditions Standard value
        D5-4 ↔chassis ground IG ON Pulse generation
        D5-5 (FRCL) ↔chassis ground With driver's door closed →opened 11 to 14 V →Less than 1 V
        D5-6 (FLCL) ↔chassis ground With passenger's door closed →opened 11 to 14 V →Less than 1 V
      NOTE: If it is outside the standard values, the main body ECM (network gateway computer) is defective.
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