CHARGING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips

*: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  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
    Result
    Proceed to
    NEXT

    NEXT

  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.

    Result
    Proceed to
    NEXT

    NEXT

  4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


    1. Check the ECUs connected to the CAN bus.

      for LHD: Click here

      for RHD: Click here

      Result
      Proceed to
      No Malfunction appears
      Malfunction appears

    Malfunction appears

    GO TO CAN COMMUNICATION SYSTEM for LHD: Click here
    GO TO CAN COMMUNICATION SYSTEM for RHD: Click here

    No Malfunction appears

  5. CHECK FOR DTC*

    Tech Tips

    Refer to DTC Check / Clear.

    Click here

    Result
    Proceed to
    DTCs are not output
    DTCs are output

    DTCs are output

    GO TO DTC CHART Click here

    DTCs are not output

  6. REFER TO PROBLEM SYMPTOMS TABLE

    Tech Tips

    Refer to Problem Symptoms Table.

    Click here

    Result
    Proceed to
    Malfunctioning parts are not confirmed
    Malfunctioning parts are confirmed

    Malfunctioning parts are confirmed

    GO TO STEP 12 Click here

    Malfunctioning parts are not confirmed

  7. OVERALL ANALYSIS AND TROUBLESHOOTING*

    Tech Tips

    Refer to Data List / Active Test.

    Click here

    Result
    Proceed to
    Malfunctioning parts are not confirmed
    Malfunctioning parts are confirmed

    Malfunctioning parts are confirmed

    GO TO STEP 12 Click here

    Malfunctioning parts are not confirmed

  8. CHECK ECU CIRCUIT

    Tech Tips

    Refer to Terminals of ECM.

    Click here

    Result
    Result
    OK
    NG

    NG

    GO TO STEP 12 Click here

    OK

  9. CHECK FOR INTERMITTENT PROBLEMS

    Tech Tips

    Refer to Symptom Simulation.

    Click here

    Result
    Proceed to
    NEXT

    NEXT

  10. CONDUCT PARTS INSPECTION

    Result
    Proceed to
    NEXT

    NEXT

  11. IDENTIFY PROBLEM

    Result
    Proceed to
    NEXT

    NEXT

  12. ADJUST AND/OR REPAIR

    Result
    Proceed to
    NEXT

    NEXT

  13. CONDUCT CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END