CHARGING SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING

for Preparation Click here


HINT:
*: Use the intelligent tester.



1.VEHICLE BROUGHT TO WORKSHOP

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    2.CUSTOMER PROBLEM ANALYSIS

      HINT:
      1. 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.
      2. Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

      1. 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*

    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*

      HINT:
      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

      HINT:
      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*

      HINT:
      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

      HINT:
      Refer to Terminals of ECU (Click here).



    		NG.
    GO TO STEP 11
    OK


    10.CHECK FOR INTERMITTENT PROBLEMS

      HINT:
      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