NAVIGATION SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING

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1.VEHICLE BROUGHT INTO A WORKSHOP

    NEXT


    2.DIAGNOSTIC QUESTIONING AND SYMPTOM CONFIRMATION

    1. Ask the customer about symptoms and confirm malfunctions.



    		.
    THE SCREEN DISPLAYS NOTHING (GO TO STEP 6, PROCEED TO "BLACK SCREEN (NO IMAGE APPEARS ON NAVIGATION/AUDIO SCREEN)")

    		.
    OTHER SYMPTOMS (GO TO STEP 3)

    3.CHECK MULTIPLEX COMMUNICATION SYSTEM (BEAN)

    1. Use the intelligent tester to check for normal function of the body multiplex communication system.



    		.
    A CODE IS OUTPUT (PROCEED TO "BODY MULTIPLEX COMMUNICATION SYSTEM")

    		.
    A CODE IS NOT OUTPUT (GO TO STEP 4)

    4.CONFIRM THE SYSTEM NORMAL CONDITION


      		.
      APPLICABLE (THIS IS NOT A MALFUNCTION.)

      		.
      NOT APPLICABLE (GO TO STEP 5)

      5.CHECK THE DIAGNOSTIC TROUBLE CODES

        HINT:
        1. If the system cannot enter the diagnosis mode, inspect each AVC-LAN communication signal and repair or replace problem parts.
        2. Even if the malfunction symptom is not confirmed, check for diagnostic trouble codes. This is because the system stores past diagnostic trouble codes.
        3. Refer to the detailed description on the diagnostic screen as necessary (Click here).
        4. Check and clear past diagnostic trouble codes. Check the diagnostic trouble code and inspect the area the code indicates.



      		.
      A CODE IS OUTPUT (GO TO STEP 6)

      		.
      A CODE IS NOT OUTPUT (GO TO STEP 7)

      6.DIAGNOSTIC TROUBLE CODE CHART

      1. Find the output code in the diagnostic trouble code chart.



      		NEXT.
      GO TO STEP 9

      7.PROBLEM SYMPTOMS TABLE

      1. Find the applicable symptom code in the problem symptoms table.

        HINT:
        If the symptom does not recur and no code is output, perform the symptom reproduction method (Click here).



      		.
      THERE IS AN APPLICABLE SYMPTOM CODE IN THE TABLE (GO TO STEP 9)

      		.
      THERE IS NO APPLICABLE SYMPTOM CODE IN THE TABLE (GO TO STEP 8)

      8.CHECK THE ECU TERMINAL ARRANGEMENT BASED ON THE MALFUNCTION SYMPTOM

        NEXT


        9.CHECK THE CIRCUIT

        1. Adjust, repair or replace as necessary.


        NEXT


        10.RECHECK THE DIAGNOSTIC TROUBLE CODE

          HINT:
          After deleting the DTC, recheck for diagnostic trouble codes.


        NEXT


        11.PERFORM CONFIRMATION TEST

          NEXT

          END