TELEMATICS SYSTEM 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 telematics system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. CHECK PROBLEM SYMPTOM


    1. The telematics system provides a variety of functions. Therefore, it is important to identify whether a malfunction is related to the communication system, including radio wave signal conditions, or any other systems. Carefully confirm the conditions that caused the malfunction in order to determine if a temporary problem with the radio wave signal conditions caused the malfunction.

      Displayed Message and Problem Symptom Cause
      A message is temporarily displayed indicating to try again after waiting for a while because the lines are busy. This is caused when there is a problem with the radio wave signal conditions or when the base station is busy. This is not a malfunction (inform the customer that this is not a malfunction and ask them to use the system as is).
      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 CAN COMMUNICATION SYSTEM*


    1. Use the GTS to check if the CAN communication system is functioning normally.

      Click here

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

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  5. CHECK FOR DTC*


    1. Refer to DTC Check/Clear.

      Click here


      Body Electrical > Telematics > Trouble Codes
      Result
      Result Proceed to
      DTCs are output. A
      DTCs are not output. B

    B

    GO TO STEP 8 Click here

    A

  6. DTC CLEAR*


    1. Refer to DTC Check/Clear.

      Click here


      Body Electrical > Telematics > Clear DTCs

      Tech Tips

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

      Result
      Proceed to
      NEXT

    NEXT

  7. RECHECK FOR DTC*


    1. Refer to DTC Check/Clear.

      Click here


      Body Electrical > Telematics > Trouble Codes
      Result
      Result Proceed to
      DTCs are output. A
      DTCs are not output. B

      Tech Tips


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

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


    A

    GO TO STEP 10 Click here

    B

  8. 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, perform the simulation method.

      Click here


    B

    GO TO STEP 10 Click here

    A

  9. PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM


    1. Refer to Terminals of ECU.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  10. CHECK CIRCUIT


    1. Adjust, repair or replace as necessary.

      Note

      Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Registration for Telematics System.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  11. PERFORM CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END