NAVIGATION SYSTEM(for Navigation Receiver Type) 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, check 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 for 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 AUXILIARY BATTERY VOLTAGE


    1. Measure the auxiliary battery voltage with the power switch off.

      Standard Voltage
      11 to 14 V

      Tech Tips

      If the voltage is below 11 V, recharge or replace the auxiliary 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 SD CARD (DISC PLAYER DISC)


    1. Enter the "SD Check" screen. Refer to Check SD Card (Disc Player Disc) in Operation Check.

      Click here

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

    NG

    REPLACE SD CARD (DISC PLAYER DISC)

    OK

  6. CHECK NAVIGATION SYSTEM NORMAL CONDITION


    1. Refer to Check Navigation System Normal Condition in Operation Check.

      Click here

      Result
      Result Proceed to
      Symptom is not normal operation. A
      Symptom is normal operation. B

    B

    END

    A

  7. CHECK CAN COMMUNICATION SYSTEM*


    1. Check if CAN communication system DTCs are output.

      Click here

      Result
      Result Proceed to
      CAN DTCs are not output. A
      CAN DTCs are output. B

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  8. CHECK FOR DTC*


    1. Refer to DTC Check / Clear.

      Click here

      Note

      If DTC B1324 or DTC B1325 is cleared, it will not be stored even if there is a malfunction.

      If DTC B1324 or DTC B1325 is output, proceed to the troubleshooting procedure for DTC B1324 or DTC B1325 before clearing DTCs.

      Result
      Result Proceed to
      DTCs are output. A
      DTCs are not output. B

    B

    GO TO STEP 12 Click here

    A

  9. 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.

      Result
      Proceed to
      NEXT

    NEXT

  10. RECHECK FOR DTC*


    1. Refer to DTC Check / Clear.

      Click here

      Result
      Result Proceed to
      DTCs are output. A
      DTCs are not output. B

      Tech Tips


      • Even if the problem 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 for DTCs and inspect the area that the code indicates.


    B

    PROBLEM SYMPTOMS TABLE Click here

    A

  11. 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

  12. PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table.

      Click here

      Result
      Result Proceed to
      Fault is not listed in Problem Symptoms Table. A
      Fault is listed in Problem Symptoms Table. B

      Tech Tips

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

      Click here


    B

    GO TO STEP 14 Click here

    A

  13. PERFORM TROUBLESHOOTING BASED ON PROBLEM 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 > Clear DTCs
      Body Electrical > Navigation System > Trouble Codes
      Result
      Proceed to
      NEXT

    NEXT

  16. PERFORM CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END