2022 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE

Basic Diagnostic Procedure: Procedure

  1. PERFORM CUSTOMER INTERVIEW  .

    Ask the customer when and how the trouble occurred using the interview check list. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>CHECK LIST FOR INTERVIEW .

    Did you interview the customer?

    Yes  Go to  2.

    No  Perform the interview, and Go to  2.

  2. PERFORM BASIC INSPECTION  .

    Perform basic inspection. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>GENERAL DESCRIPTION>INSPECTION .

    Is the check result OK?

    Yes  Go to  3.

    No  Repair the faulty part found in basic inspection, and Go to  3.

  3. CHECK SUBARU SELECT MONITOR COMMUNICATION  .
    1. Turn the ignition switch to OFF.
    2. Connect the Subaru Select Monitor to data link connector. Ref. to COMMON (DIAGNOSTICS)>DATA LINK CONNECTOR .
    3. Turn the ignition switch to ON and run the Subaru Select Monitor.
    4. Select [Multi-Function Display].
      NOTE: For detailed operation procedures, refer to "Help" of application.

      Is communication possible?

      Yes  Go to  4.

      No  Check the communication circuit. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE FOR SUBARU SELECT MONITOR COMMUNICATION .

  4. CHECK CAN COMMUNICATION  .

    Perform the diagnosis for LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .

    Is the check result OK?

    Yes  Go to  5.

    No  Perform the diagnosis for LAN system.

  5. CHECK MFD  .

    Read the DTC of [Multi-Function Display] using the Subaru Select Monitor. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

    Are any DTCs displayed? (Current malfunction)

    Yes  Record the DTC, time stamp and freeze frame data, and Go to  7.

    No  Go to  6.

  6. CHECK MFD  .

    Check MFD operation. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>ACTIVE TEST .

    Is the check result OK?

    Yes  System is normal.

    No  Replace the MFD. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER .

  7. PERFORM DIAGNOSIS  .
    1. Perform the diagnosis for the displayed DTCs. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .
    2. Repair or replace the cause of trouble.
    3. Using the Subaru Select Monitor, perform the clear memory of [Multi-Function Display]. Ref. to COMMON (DIAGNOSTICS)>CLEAR MEMORY .
    4. Execute the inspection mode.
    5. Read the DTC of [Multi-Function Display] using the Subaru Select Monitor. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

      Are any DTCs displayed? (Current malfunction)

      Yes  Repeat step  7 until DTC is not shown. Go to  7.

      No  Finish the diagnosis.

Factory Service Tools

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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.

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