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Home >> Subaru >> 2017 >> Forester 2.0XT Touring >> Repair and Diagnosis >> Electrical >> Wiring Diagrams >> OEM Wiring Diagrams W/ Connector End Views & Fuse/Relay Locations >> Basic Diagnostic Procedure >> How To Read Wiring Diagrams >> Wiring Diagram Of Each System

Wiring Diagram Of Each System

  1. Fuse No. & rating 

    The "Fuse No. & rating" is the same description as that in the DC power supply circuit, and corresponds with that used in the vehicle.

    Fig 1: Fuse Number And Rating Wiring Diagram
    G09485427Courtesy of SUBARU OF AMERICA, INC.
  2. Wiring diagram of each system 

    To help figure out the route from the DC power supply circuit, wiring diagrams are classified and described in each system.

    NOTE: This information includes harness information. Information of parts that are not routed via harness and adapter code is described as a reference. If no information is described in this article, refer to each information.
    Fig 2: DC Power Supply Circuit Wiring Diagram
    G11272186Courtesy of SUBARU OF AMERICA, INC.
    • (A): Wire connection and crossing in a circuit
      Fig 3: DC Power Supply Circuit Wiring Diagram
      G09485429Courtesy of SUBARU OF AMERICA, INC.
    • (B): Classification by specifications

      If a circuit differs from another circuit according to vehicle specifications, the specification difference is indicated with abbreviations.

    • (C): Color code

      Indicates the color of harness and connector housing.

      Color code Color
      B Black
      G Green
      L Blue
      Or Orange
      P Pink
      R Red
      S Shield line
      V Violet
      W White
      Y Yellow
      Be Beige
      Br Brown
      Gr Gray
      Lg Light green
      Sb Light blue
      * White or natural color

      (Color code of harness)

      Single color is indicated with a color code, and double colors are indicated with "standard color/marking color".

      Fig 4: Single Color And Two Color Harnesses
      G09485430Courtesy of SUBARU OF AMERICA, INC.

      (Color code of connector housing)

      Used in the connector sketch and the locations.

      Fig 5: Connector Sketch And Location Chart
      G11272189Courtesy of SUBARU OF AMERICA, INC.
    • (D): Connection to another system in the same circuit

      Indicates the connecting to with alphanumeric characters, which correspond to the descriptions shown on the upper information of each article.

      Fig 6: Keyless Entry System Communication Diagram
      G11272190Courtesy of SUBARU OF AMERICA, INC.
    • (E): Connections in the system

      Indicates with alphabetic characters, which correspond to the same alphabetic characters shown in the following information.

    • (F): Ground

      The ground points shown in the ground circuit refer to the following, which correspond to the locations.

      Fig 7: Grounding Points Symbols
      G09485433Courtesy of SUBARU OF AMERICA, INC.
    • (G): Terminal No.

      Indicates the terminal number of the connector to be connected. If several connectors are connected to a component, they are identified with alphabetic characters.

      Fig 8: Identifying Connector Terminal Numbers
      G09485434Courtesy of SUBARU OF AMERICA, INC.
    • (H): Connector No.

      The first alphabetic characters of the connector number correspond with the following symbols that indicate harnesses or systems.

      Symbol Harness/cord
      AB Airbag wiring harness
      AD Adapter cord
      AT/T Transmission cord
      B Bulkhead wiring harness
      D Door cord/Rear gate code
      E Engine wiring harness
      Oxygen sensor cord
      ST Steering cord
      F Front wiring harness
      Generator cord
      i Instrument panel Wiring harness
      R Rear wiring harness
      Fuel cord/Roof cord
      Rear gate cord/Trunk lid cord
    • (I): Connector sketch

      The connector sketch at the bottom shows connectors used in the wiring diagram.

  3. Connector 

    The following shows the connector shape, lock position, connection and terminal number that are used in this information.

    For connector shape, refer to the connector sketch.

    Fig 9: Identifying Connector Shapes And Sketches
    G09485435Courtesy of SUBARU OF AMERICA, INC.
    • The sketch of the connector and the terminal number are indicated in a disconnected state which is viewed from the terminal side.
      Fig 10: Identifying Connector Terminal Numbers
      G09485436Courtesy of SUBARU OF AMERICA, INC.
    • The connector sketch usually indicates a female connector.
    • The connector used in the wiring diagram of the system indicates only the intermediate connection, therefore, no parts, J/Cs and grounds are described. In addition, if the different circuits are connected with the same connector, a dot line is used to indicate that these are the same.
      Fig 11: Identifying Connector Inline Connections
      G10409083Courtesy of SUBARU OF AMERICA, INC.
    • When connecting the connector, the terminals with the same number are jointed. When the connector is disconnected, the terminal location is symmetrical.
    Fig 12: Joining Same Number Connector Terminals
    G09485438Courtesy of SUBARU OF AMERICA, INC.