NAVIGATION SYSTEM(for HDD) HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use the following procedure to troubleshoot the navigation system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. CUSTOMER PROBLEM ANALYSIS


    • When troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.

    • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

    • The following 5 items are important points in problem analysis:

      What Vehicle model, system name
      When Date, time, occurrence frequency
      Where Road conditions
      Under what conditions? Driving conditions, weather conditions
      How did it happen? Problem symptoms
    Result
    Proceed to
    NEXT

    NEXT

  3. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage.

      Standard voltage
      11 to 14 V

      Tech Tips

      If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK CABIN


    1. Check that condensation is not likely to occur in the cabin, and that the temperature is not high or extremely low in the cabin.

      OK
      Condensation is not likely being produced and the temperature is not high or extremely low.

      Tech Tips


      • A humid cabin and a rapid change in temperature may lead to condensation. Condensation in the cabin may cause a short circuit.

      • The navigation system may not operate normally when the temperature is -20°C (-4°F) or lower, or 65°C (149°F) or higher.

      Result
      Proceed to
      OK
      NG

    NG

    SET CABIN TO APPROPRIATE TEMPERATURE

    OK

  5. CHECK NAVIGATION SYSTEM NORMAL CONDITION


    1. Refer to Check System Normal Condition.

      Click here

      Result
      Proceed to
      Symptom is not normal operation
      Symptom is normal operation

    Symptom is normal operation

    SYMPTOM IS NORMAL OPERATION

    Symptom is not normal operation

  6. CHECK CAN COMMUNICATION SYSTEM*


    1. Check for DTC output.

      for LHD:

      Click here

      for RHD:

      Click here

      Result
      Proceed to
      CAN DTCs are not output
      CAN DTCs are output

    CAN DTCs are output

    GO TO CAN COMMUNICATION SYSTEM for LHD: GO TO CAN COMMUNICATION SYSTEM Click here
    GO TO CAN COMMUNICATION SYSTEM for RHD: GO TO CAN COMMUNICATION SYSTEM Click here

    CAN DTCs are not output

  7. CHECK FOR DTC*


    1. Refer to DTC Check/Clear.

      Click here


      Body Electrical > Navigation System > Trouble Codes
      Result
      Proceed to
      DTCs are output
      DTCs are not output

    DTCs are not output

    GO TO STEP 11 Click here

    DTCs are output

  8. DTC CLEAR*


    1. Refer to DTC Check/Clear.

      Click here

      Tech Tips

      The present DTCs may not indicate actual malfunctions depending on the vehicle operating conditions.


      Body Electrical > Navigation System > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  9. RECHECK FOR DTC*


    1. Refer to DTC Check/Clear.

      Click here

      Tech Tips


      • Even if the malfunction symptom is not confirmed, check for DTCs. This is because the system stores history DTCs.

      • If more information is needed, perform a recheck using the "System Check Mode" screen after rechecking for DTCs using the GTS.

      • Check the DTCs and inspect the area that the code indicates.


      Body Electrical > Navigation System > Trouble Codes
      Result
      Proceed to
      DTCs are output
      DTCs are not output

    DTCs are not output

    CHECK HARD DISC Click here

    DTCs are output

  10. DIAGNOSTIC TROUBLE CODE CHART


    1. Find the output code in Diagnostic Trouble Code Chart.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 14 Click here

  11. CHECK HARD DISC


    1. Enter the "HDD Check" screen. Refer to Check Hard Disc in Operation Check.

      Click here

      OK
      "OK" is displayed.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE HARD DISC

    OK

  12. PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table.

      Click here

      Tech Tips

      If the symptom does not recur and no DTCs are output, attempt to reproduce the symptoms.

      Click here

      Result
      Proceed to
      Fault is not listed in Problem Symptoms Table
      Fault is listed in Problem Symptoms Table

    Fault is listed in Problem Symptoms Table

    ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE

    Fault is not listed in Problem Symptoms Table

  13. PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM


    1. Refer to Terminals of ECU.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  14. CHECK CIRCUIT


    1. Adjust, repair or replace as necessary.

      Result
      Proceed to
      NEXT

    NEXT

  15. RECHECK FOR DTC*


    1. After clearing DTCs, recheck for DTCs.

      Click here


      Body Electrical > Navigation System > Trouble Codes
      Result
      Proceed to
      NEXT

    NEXT

  16. PERFORM CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END