HYBRID BATTERY SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • *: Use the GTS

  • Use the following procedure to troubleshoot the hybrid battery system.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

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  2. CUSTOMER PROBLEM ANALYSIS

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  3. CONNECT GTS TO THE DLC3*

    Tech Tips

    If the display on the GTS indicates a communication fault, inspect the DLC3.

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  4. CHECK DTC AND SAVE FREEZE FRAME DATA*

    Click here

    Tech Tips


    • If DTCs for the CAN communication system are present in addition to other DTCs, first troubleshoot and repair any malfunctions in the CAN communication system.

    • Make sure to save freeze frame data because the data is necessary for a simulation test.

    • For the hybrid vehicle control system, there are many DTCs, many of which can be stored due to a single malfunction. As a result, in some of the diagnosis procedures an instruction is provided to check for other DTCs and their corresponding INF codes. By following the diagnosis path based on the combination of output DTCs and INF codes, it is possible to narrow down the problem early and avoid unnecessary diagnosis.

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  5. CLEAR DTC AND FREEZE FRAME DATA*

    Click here

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  6. CONFIRM PROBLEM SYMPTOMS

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    Malfunction does not occur. A
    Malfunction occurs. B

    B

    GO TO STEP 8 Click here

    A

  7. CHECK FOR INTERMITTENT PROBLEMS

    Click here

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  8. CHECK FOR DTCS

    Click here

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  9. REPAIR TO DTC CHART

    Tech Tips

    DTCs for the hybrid control system and hybrid battery system are displayed using the same menus on the GTS. It is necessary to check the DTC charts for hybrid control system and hybrid battery system.


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  10. PERFORM TROUBLESHOOTING

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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