HYBRID CONTROL SYSTEM, Diagnostic DTC:P062F46

DTC Code DTC Name
P062F46 Hybrid/EV Powertrain Control Module EEPROM Calibration / Parameter Memory Failure

DESCRIPTION

The hybrid vehicle control ECU monitors its internal operation and will store these DTCs when it detects an internal malfunction. If these DTCs are output, replace the hybrid vehicle control ECU.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P062F46 Hybrid/EV Powertrain Control Module EEPROM Calibration / Parameter Memory Failure

Either of the following conditions is met:


  • ECU internal malfunction

    (EEPROM error)

  • The power switch is turned off when the auxiliary battery voltage is 9.5 V or less.

(1 trip detection logic)

  • Hybrid vehicle control ECU

  • Auxiliary battery

 Comes on

Master Warning Light:

Comes 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 15 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.

PROCEDURE


  1. CHECK DATA (VEHICLE CONTROL HISTORY (HYBRID CONTROL))


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Utility / Vehicle Control History.


      Powertrain > Hybrid Control > Utility
      Tester Display
      Vehicle Control History

    4. Read and record the vehicle control history (Hybrid Control).

      Result
      Result Proceed to
      Auxiliary Battery Voltage Low (HV) or Auxiliary Battery Voltage Low (Inverter) is stored. A
      Auxiliary Battery Voltage Low (HV) and Auxiliary Battery Voltage Low (Inverter) are not stored. B

    5. Turn the power switch off.


    B

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    A

  2. CHECK DATA (FREEZE FRAME DATA (HYBRID CONTROL) AND VEHICLE CONTROL HISTORY (HYBRID CONTROL))


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Read the freeze frame data of DTC P062F46.

      Tech Tips

      The value of the freeze frame data item BATT voltage immediately after the power switch is turned on (IG) may be 16.00 V (15.99 V), however this does not indicate a malfunction.


      1. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.


        Powertrain > Hybrid Control > Trouble Codes

      2. According to the display on the GTS, read the freeze frame data and make a note of the value of Total Distance Traveled.

    4. Read the data recorded in the vehicle control history item (Auxiliary Battery Voltage Low (HV) or Auxiliary Battery Voltage Low (Inverter)) which was stored when the auxiliary battery voltage dropped below the threshold.


      1. Enter the following menus: Powertrain / Hybrid Control / Utility / Vehicle Control History.


        Powertrain > Hybrid Control > Utility
        Tester Display
        Vehicle Control History

      2. According to the display on the GTS, read the data of the vehicle control history data and make a note of the value of Total Distance Traveled.

    5. Compare the values in the freeze frame data and the vehicle control history.

      Result
      Result Proceed to
      The total distance driven is the same. A
      The total distance driven is not the same. B

    6. Turn the power switch off.


    B

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    A

  3. CHECK AUXILIARY BATTERY VOLTAGE


    1. Turn the power switch off and turn on the high beam headlights for 30 seconds. This will remove the surface charge from the auxiliary battery.

    2. Measure the auxiliary battery voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      Positive (+) auxiliary battery terminal - Negative (-) auxiliary battery terminal 20°C (68°F), Power switch off 11.0 V or higher

      Tech Tips

      This DTC may be stored when the power switch is turned off when the auxiliary battery voltage is low. In this case, when the auxiliary battery voltage is no longer low, after the power switch is turned on (IG) and then off several times, the vehicle will be judged as normal and the master warning light will turn off.

      Result
      Proceed to
      OK
      NG

    OK

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    NG

  4. RECHARGE OR REPLACE AUXILIARY BATTERY

    Result
    Proceed to
    NEXT

    NEXT

  5. 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 / Trouble Codes.

    4. Clear the DTCs.


      Powertrain > Hybrid Control > Clear DTCs

    5. Turn the power switch off.

      Result
      Proceed to
      NEXT

    NEXT

  6. SIMULATION TEST


    1. Connect the GTS to the DLC3.

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

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

    4. With power switch on (IG) and wait for 15 seconds or more.

    5. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    6. Check if DTCs are output.


      Powertrain > Hybrid Control > Trouble Codes
      Result
      Proceed to
      P062F46 is not output.
      P062F46 is output.

    7. Turn the power switch off.


    P062F46 is not output.

    END

    P062F46 is output.

    REPLACE HYBRID VEHICLE CONTROL ECU Click here