HYBRID CONTROL SYSTEM, Diagnostic DTC:P0A9563

DTC Code DTC Name
P0A9563 High Voltage Fuse Accumulated Load History

DESCRIPTION

The hybrid vehicle control ECU estimates the thermal load of the high voltage fuse. If the accumulated thermal load exceeds the threshold, the hybrid vehicle control ECU 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 hybrid vehicle control ECU exceeds the threshold.

(1 trip detection logic)

 Hybrid battery terminal block Does not come on

Master Warning Light:

Does not come on

CONFIRMATION DRIVING PATTERN

Tech Tips

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.

Click here


  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 / Hybrid Control / Utility / All Readiness.

  8. Check the DTC judgment result.

    Tech Tips


    • 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 or N/A, perform driving pattern again.

CAUTION / NOTICE / HINT

Tech Tips

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.

PROCEDURE


  1. REPLACE HYBRID BATTERY TERMINAL BLOCK

    Click here

    Result
    Proceed to
    NEXT

    NEXT

  2. PERFORM UTILITY (High Voltage Fuse Accumulated Load History Reset)

    Click here

    Result
    Proceed to
    NEXT

    NEXT

  3. CLEAR DTC (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Clear DTCs.

    4. Clear the DTCs and freeze frame data.


      Powertrain > Hybrid Control > Clear DTCs

    5. Turn the power switch off.

    6. Disconnect the GTS from the DLC3.

      Result
      Proceed to
      NEXT

    NEXT

    END