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Basic Diagnostic Procedure: Procedure

  1. PERFORM CUSTOMER INTERVIEW. 

    Using the Check List for Interview, ask the customer the condition of how the trouble occurred. Refer to TELEMATICS SYSTEM (DIAGNOSTICS)>CHECK LIST FOR INTERVIEW>CHECK .

    Did you interview the customer?

    Yes:  Go to  2.

    No:  Interview the customer. Refer to TELEMATICS SYSTEM (DIAGNOSTICS)>CHECK LIST FOR INTERVIEW>CHECK .

  2. CHECK SUBARU SELECT MONITOR COMMUNICATION. 

    Using the Subaru Select Monitor, check whether communication to the telematics system can be executed.

    NOTE: If the communication function of the Subaru Select Monitor cannot be executed properly, check the communication circuit. (Refer to "Communication for initializing impossible".) Refer to TELEMATICS SYSTEM (DIAGNOSTICS)>SUBARU SELECT MONITOR>INSPECTION .

    Is communication possible?

    Yes:  Go to  3.

    No:  Check the communication circuit.

  3. CHECK TELEMATICS. 

    Using the Subaru Select Monitor, read DTC of the telematics system. Refer to TELEMATICS SYSTEM (DIAGNOSTICS)>DIAGNOSTIC CODE(S) DISPLAY>OPERATION .

    NOTE: If DTC is detected, only RED LED will illuminate. For details, refer to "LED operation status list". Refer to TELEMATICS SYSTEM (DIAGNOSTICS)>CHECK LIST FOR INTERVIEW>CHECK>LED ILLUMINATION STATUS LIST .

    Are any DTCs displayed?

    Yes:  Perform the diagnosis for the displayed DTCs. Refer to TELEMATICS SYSTEM (DIAGNOSTICS)>DIAGNOSTIC CODE(S) DISPLAY>LIST .

    No:  Go to  4.

  4. CHECK DIAGNOSTICS WITH PHENOMENON. 

    Check the list of Diagnostics with Phenomenon. Refer to TELEMATICS SYSTEM (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON .

    Does the symptom apply?

    Yes:  Perform diagnosis according to the procedures in the diagnostics with phenomenon.

    No:  Go to  5.

  5. CHECK TROUBLE PHENOMENON. 
    1. Perform the basic inspection and function check. Refer to TELEMATICS SYSTEM (DIAGNOSTICS)>GENERAL DESCRIPTION>INSPECTION .
    2. Check the data communication module. Refer to TELEMATICS SYSTEM (DIAGNOSTICS)>CONTROL MODULE I/O SIGNAL .
    3. Perform check of current data. Refer to TELEMATICS SYSTEM (DIAGNOSTICS)>READ CURRENT DATA .
    4. Perform a unit check.

    Was the trouble cause found?

    Yes:  Perform the Clear Memory after repairing or replacing the cause of trouble. Refer to TELEMATICS SYSTEM (DIAGNOSTICS)>CLEAR MEMORY MODE .

    No:  System is normal.

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