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Basic Diagnostic Procedure: Procedure

  1. PERFORM CUSTOMER INTERVIEW. 

    Ask the customer when and how the trouble occurred using the interview check list. Refer 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. Refer 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. Refer to COMMON (DIAG)>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. Refer to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE FOR SUBARU SELECT MONITOR COMMUNICATION .

  4. CHECK CAN COMMUNICATION. 

    Perform the diagnosis for LAN system. Refer to LAN SYSTEM (DIAGNOSTICS) (EXCEPT FOR HEV)>BASIC DIAGNOSTIC PROCEDURE . Refer to LAN SYSTEM (DIAGNOSTICS) (HEV)>BASIC DIAGNOSTIC PROCEDURE .

    Is the check result OK?

    Yes:  Go to  5.

    No:  Perform the inspection according to the diagnosis for LAN system.

  5. CHECK MFD. 

    Read the DTC of [Multi-Function Display] using the Subaru Select Monitor. Refer to MULTIFUNCTION 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. Refer to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>ACTIVE TEST .

    Is the check result OK?

    Yes:  System is normal. Refer to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>ACTIVE TEST .

    No:  Replace the MFD. Refer to INSTRUMENTATION/DRIVER INFO>MULTI-FUNCTION DISPLAY (MFD) .

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