CHARGING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

*: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. CUSTOMER PROBLEM ANALYSIS

    Tech Tips


    • In 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 the problem analysis:

      What Vehicle model, system name
      When Date, time, occurrence frequency
      Where Road conditions
      Under what conditions? Running conditions, driving conditions, weather conditions
      How did it happen? Problem symptoms

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  3. INSPECT BATTERY VOLTAGE

    Standard voltage
    11 to 14 V

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


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  4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


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

  5. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM (LIN)*


    1. Use the intelligent tester to check if the LIN communication system is functioning normally Click here.

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

      B

      GO TO LIN COMMUNICATION SYSTEM Click here

      A

  6. CHECK FOR DTC*

    Tech Tips

    Refer to DTC Check / Clear Click here.

    Result
    Result Proceed to
    No code A
    Trouble code B

    B

    GO TO DTC CHART Click here

    A

  7. REFER TO PROBLEM SYMPTOMS TABLE

    Tech Tips

    Refer to Problem Symptoms Table Click here.

    Result
    Result Proceed to
    Malfunctioning parts not confirmed A
    Malfunctioning parts confirmed B

    B

    GO TO STEP 11
    A

  8. OVERALL ANALYSIS AND TROUBLESHOOTING*

    Tech Tips

    Refer to Data List / Active Test Click here.

    Result
    Result Proceed to
    Malfunctioning parts not confirmed A
    Malfunctioning parts confirmed B

    B

    GO TO STEP 11
    A

  9. CHECK ECU CIRCUIT

    Tech Tips

    Refer to Terminals of ECU Click here.


    NG

    GO TO STEP 11
    OK

  10. CHECK FOR INTERMITTENT PROBLEMS

    Tech Tips

    Refer to Symptom Simulation Click here.


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  11. CONDUCT PARTS INSPECTION


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  12. IDENTIFY PROBLEM


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  13. ADJUST AND/OR REPAIR


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  14. CONDUCT CONFIRMATION TEST


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    END