CHARGING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

*: Use the GTS.


  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 for 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


    1. Measure the 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. Check if CAN communication DTCs are output Click here.

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

      B

      GO TO CAN COMMUNICATION SYSTEM Click here

      A

  5. CHECK FOR DTC*

    Tech Tips

    Refer to DTC Check / Clear Click here.

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

    B

    GO TO DTC CHART Click here

    A

  6. REFER TO PROBLEM SYMPTOMS TABLE

    Tech Tips

    Refer to Problem Symptoms Table Click here.

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

    B

    GO TO STEP 12
    A

  7. OVERALL ANALYSIS AND TROUBLESHOOTING*

    Tech Tips

    Refer to Data List / Active Test Click here.

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

    B

    GO TO STEP 12
    A

  8. CHECK ECM CIRCUIT

    Tech Tips

    Refer to Terminals of ECM Click here.


    NG

    GO TO STEP 12
    OK

  9. CHECK FOR INTERMITTENT PROBLEMS

    Tech Tips

    Refer to Symptom Simulation Click here.


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  10. CONDUCT PARTS INSPECTION


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  11. IDENTIFY PROBLEM


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  12. ADJUST AND/OR REPAIR


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  13. CONDUCT CONFIRMATION TEST


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    END