Service Inspection

2016 Subaru Legacy 2.5iSECTION Service Inspection

Upon entering the service diagnostics mode, the following screen is displayed.

Fig 1: Screen Display - Service Menu
G10309196Courtesy of SUBARU OF AMERICA, INC.

Failure Diagnosis menu 

On Service Menu, click Failure Diagnosis to display the following screen.

Fig 2: Screen Display - Failure Diagnosis Menu
G10309197Courtesy of SUBARU OF AMERICA, INC.
  1. System Check

    On the Failure Diagnosis screen, click System Check to display the following screen.

    Fig 3: Screen Display - System Check
    G10309198Courtesy of SUBARU OF AMERICA, INC.

    OK: Each connection device is connected properly.

    NG: Connection is not established, or connection status (including harness) is faulty.

    NOTE: Check the external connection terminals (USB 1, USB 2 and AUX) by connecting memory or a pin jack for inspection.
    Check the connection status of the connector and harness. If there are no problems, the connection device or unit could be faulty.
    The following shows information to be displayed and its description.
    Item Item detection method OK judgment condition Note
    GPS Direct line GPS antenna is connected. (NG is displayed when short circuit is detected.) With navigation only
    MIC Direct line (i87) No. 6 falls to GND level. -
    Rr_CAM Direct line Synchronized signals from the camera are input to (i146) No. 3. -
    AUX Direct line (i87) No. 25 falls to GND level. -
    USB1 Communication USB device is connected to USB-HUB to obtain USB device information properly.
    (Should be recognizable as a supported USB device.)
    -
    USB2 Communication USB device is connected to USB-HUB to obtain USB device information properly.
    (Should be recognizable as a supported USB device.)
    -
    SXM Direct line XM-ANT is connected. (NG is displayed when short circuit is detected.) It takes approx. 30 seconds to become recognizable.
    UART Communication A/C control panel: UART communication is completed properly.
    A/C control module: A/C control module connection notice is received through UART communication from the A/C control panel.
    -
    CAN Communication CAN communication is completed properly. -
    VICS Communication UART communication is completed properly. -
    ETC Communication ETC device registration is completed through E-BUS communication. -
  2. SD Check

    On the Failure Diagnosis screen, click SD Check to display the following screen.

    Fig 4: Screen Display - SD Check
    G10309199Courtesy of SUBARU OF AMERICA, INC.

    On the SD Check screen, click SD Check to display a diagnostic result.

    OK: There is no defect on the SD card.

    NG: There is defect on the SD card. Refer to DTC B2243 to perform the diagnosis. < Ref. to DTC B2243 SD CARD COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >

    NOTE: The following shows information to be displayed and its description.
    Item Content
    OK SD card diagnosis is completed. Diagnostic result is OK.
    NG SD card diagnosis is completed. Diagnostic result is NG.
    During diagnosis SD card diagnosis is in progress.
  3. Subaru Select Monitor

    On the Failure Diagnosis screen, click Subaru Select Monitor. A DTC code is displayed when a DTC code is stored.

    When a DTC code is displayed, perform the diagnosis according to the DTC code. < Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >

    Function Check/Setting 

    On Service Menu, click Function Check/Setting to display the following screen.

    Fig 5: Screen Display - Function Check/Setting
    G10309200Courtesy of SUBARU OF AMERICA, INC.
  1. Panel & Steering Switch Check Mode

    On the Function Check/Setting screen, click Panel & Steering Switch to display the following screen.

    Fig 6: Screen Display - Panel & Steering Switch Check Mode
    G10309201Courtesy of SUBARU OF AMERICA, INC.

    Once the screen is displayed, press the push switches to check that the number of pushed switches matches the number shown in Pushed SW.

    If the number of SW does not match, SW conditions are not properly recognized. Therefore, perform inspection for unrecognized switches.

    In addition, turn the rotary switch clockwise or counterclockwise to check that the screen indicates correct status according to the operation. If the screen display does not match the actual operation, the rotary SW may be faulty. Perform inspection for the rotary SW.

    NOTE: The following shows information to be displayed and its description.
    Item Display Content
    Result Pressed Pressing of switch is detected.
    Pushed SW 1 One pressed switch is detected.
    2 Two pressed switches are detected.
    3 Three pressed switches are detected.
    4 Four pressed switches are detected.
    The SW is being turned Clockwise The rotary switch is turned clockwise.
    Counterclockwise The rotary switch is turned counterclockwise.
  2. Touch Switch Check
    NOTE: The Subaru Select Monitor does not have the Touch Switch Check function.
    On the Function Check/Setting screen, click Touch Switch to display the following screen.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.