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


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  3. CONNECT INTELLIGENT TESTER TO DLC3*

    Tech Tips

    If the display indicates a communication fault in the tester, inspect the DLC3. When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.


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  4. CHECK DTC AND FREEZE FRAME DATA*

    Tech Tips

    Record or print DTCs and freeze frame data, if necessary.


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  5. CLEAR DTC AND FREEZE FRAME DATA*


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  6. CONDUCT VISUAL INSPECTION


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  7. CONFIRM PROBLEM SYMPTOMS

    Tech Tips


    • Refer to Problem Symptoms Table Click here.

    • If the engine does not start, first perform the Check for DTC and Conduct Basic Inspection steps that follow.

    Result Proceed to
    Malfunction does not occur A
    Malfunction occurs B

    B

    GO TO STEP 10
    A

  8. SIMULATE SYMPTOMS

    Tech Tips

    Refer to Problem Symptoms Table Click here.


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  9. CHECK FOR DTC*

    Tech Tips

    Refer to DTC Check / Clear Click here.

    Result Proceed to
    Trouble code A
    No code B

    B

    GO TO STEP 12
    A

  10. REFER TO DTC CHART

    Tech Tips

    Refer to DTC chart Click here.


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  11. CONDUCT BASIC INSPECTION

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

    B

    GO TO STEP 17
    A

  12. REFER TO PROBLEM SYMPTOMS TABLE

    Tech Tips

    Refer to Problem Symptoms Table Click here.

    Result Proceed to
    Malfunctioning circuit confirmed A
    Malfunctioning parts confirmed B

    B

    GO TO STEP 17
    A

  13. CHECK ECM POWER SOURCE CIRCUIT

    Tech Tips

    Refer to ECM power souse circuit (for SFI System) Click here.


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  14. CONDUCT CIRCUIT INSPECTION

    Result Proceed to
    Malfunction not confirmed A
    Malfunction confirmed B

    B

    GO TO STEP 18
    A

  15. CHECK FOR INTERMITTENT PROBLEMS


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  16. CONDUCT PARTS INSPECTION


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  17. IDENTIFY PROBLEM


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  18. ADJUST AND/OR REPAIR


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  19. CONDUCT CONFIRMATION TEST


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    END