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HYBRID BATTERY SYSTEM, Diagnostic DTC:P0A9563

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DTC Code DTC Name
P0A9563 High Voltage Fuse Accumulated Load History
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DESCRIPTION

The battery ECU assembly estimates the thermal load of the high voltage fuse. If the accumulated thermal load exceeds the threshold, the battery ECU assembly will store this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A9563 High Voltage Fuse Accumulated Load History

Accumulated thermal load of the high voltage fuse estimated by the battery ECU assembly exceeds the threshold.

(1 trip detection logic)

 Hybrid battery terminal block Does not come on

Master Warning Light:

Does not come on
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CONFIRMATION DRIVING PATTERN

Tip:

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

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  1. Connect the GTS to the DLC3.

  2. Turn the power switch on (IG) and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the power switch off and wait for 2 minutes or more.

  5. Turn the power switch on (IG) and turn the GTS on.

  6. With power switch on (IG) and wait for 5 seconds or more.

  7. Enter the following menus: Powertrain / HV Battery / Utility / All Readiness.

  8. Check the DTC judgment result.

    Tip:

    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE, perform driving pattern again.

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CAUTION / NOTICE / HINT

Tip:

If the hybrid battery terminal block has been replaced, make sure to perform "High Voltage Fuse Accumulated Load History Reset" and then clear the DTCs.

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PROCEDURE


  1. Click here

    REPLACE HYBRID BATTERY TERMINAL BLOCK

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    Result
    Proceed to
    NEXT

  2. Click here

    PERFORM UTILITY (High Voltage Fuse Accumulated Load History Reset)

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    Result
    Proceed to
    NEXT

  3. Click here

    CLEAR DTC (HYBRID BATTERY)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / HV Battery / Clear DTCs.

    4. Clear the DTCs and freeze frame data.


      1. Powertrain > HV Battery > Clear DTCs


    5. Turn the power switch off.

    6. Disconnect the GTS from the DLC3.

      Result
      Proceed to
      NEXT

    • NEXT

      COMPLETED