NAVIGATION SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING


  1. VEHICLE BROUGHT INTO A WORKSHOP


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  2. DIAGNOSTIC QUESTIONING AND SYMPTOM CONFIRMATION


    1. Ask the customer about symptoms and confirm malfunctions.


      THE SCREEN DISPLAYS NOTHING (GO TO STEP 9, AND PROCEED TO "No Image Appears on Multi-display")

      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 Click here.


      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 DTC

    Tech Tips

    If the system cannot enter the diagnostic mode, inspect each AVC-LAN communication component and repair or replace problem parts Click here.


    A CODE IS OUTPUT (GO TO STEP 6)

    A CODE IS NOT OUTPUT (GO TO STEP 9)

  6. DTC CLEAR


    1. Clear the DTCs and finish the diagnostic mode.

      Tech Tips

      The currently output DTCs may not indicate actual malfunctions depending on the vehicle conditions.


      NEXT

  7. RECHECK FOR DTC

    Tech Tips


    • If the system cannot enter the diagnosis mode, inspect the AVC-LAN and all the components that connect to the AVC-LAN for short circuits.

    • Even if the malfunction symptom is not confirmed, check for diagnostic trouble codes. This is because the system stores past diagnostic trouble codes.

    • Refer to the system description on the diagnostic screen, as necessary Click here.

    • Check the diagnostic trouble code and inspect the area the code indicates.


    A CODE IS OUTPUT (GO TO STEP 8)

    A CODE IS NOT OUTPUT (GO TO STEP 9)

  8. DIAGNOSTIC TROUBLE CODE CHART


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


      NEXT

      GO TO STEP 11

  9. PROBLEM SYMPTOMS TABLE


    1. Find the applicable symptom in the problem symptoms table Click here.

      Tech Tips

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


      THERE IS AN APPLICABLE SYMPTOM IN THE TABLE (GO TO STEP 11)

      THERE IS NO APPLICABLE SYMPTOM IN THE TABLE (GO TO STEP 10)

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


    1. Refer to Terminals of ECU Click here.


      NEXT

  11. CHECK THE CIRCUIT


    1. Adjust, repair, or replace as necessary.


      NEXT

  12. RECHECK THE DIAGNOSTIC TROUBLE CODE

    Tech Tips

    After clearing the DTCs, recheck for diagnostic trouble codes.


    NEXT

  13. PERFORM CONFIRMATION TEST


    NEXT
    END