Dtc P062F Internal Control Module Eeprom Error

Engine Hybrid System. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
1Kd-Ftv Engine Control. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

INSPECTION PROCEDURE

LEARNING VALUES CONFIRMATION

REGISTER INJECTOR COMPENSATION CODE

LEARNING VALUES WRITE

LEARNING VALUES CONFIRMATION

PILOT QUANTITY LEARNING

REPLACE FRONT EXHAUST PIPE ASSEMBLY (CATALYST CONVERTER)

CATALYST RECORD CLEAR

CHECK DTC OUTPUT

REPLACE ECM

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

DTC P062F Internal Control Module EEPROM Error


DESCRIPTION


P062F
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Ignition switch ON for 1 second
When any condition below is met (1 trip detection logic):
  1. Fuel injector compensation code is not registered.
  2. Wrong injector compensation code is registered.
  3. Fuel injector pilot quantity learning value is not registered.
  4. Catalyst deterioration learning value is not registered.
  5. Crank Time Compensation Learning value is not registered.*
  6. A/F Sensor Compensation Learning value is not registered.*
  1. Fuel injector compensation code
  2. Fuel injector pilot quantity learning value
  3. Catalyst thermal deterioration value
  4. A/F sensor compensation learning value
  5. Crank time compensation learning value
  6. ECM
*: When this malfunction occurs, the MIL does not illuminate.
NOTICE:
  1. When a fuel injector is replaced, the new fuel injector compensation code must be input into the ECM. When the ECM is replaced, all of the existing fuel injector compensation codes must be input into the new ECM.
  2. Fuel injector compensation codes are unique, 30-digit, alphanumeric values printed on the head portion of each fuel injector. If an incorrect fuel injector compensation code is input into the ECM, the engine assembly may rattle or engine idling may become rough. In addition, engine failure may occur and the life of the engine may be shortened.
  3. When a fuel injector is replaced, perform pilot quantity learning. When the ECM is replaced, all of the existing fuel injector pilot quantity learning values must be input into the new ECM.
  4. When the catalyst converter is replaced, the new catalyst thermal deterioration value must be input into the ECM. When the ECM is replaced, the existing catalyst thermal deterioration value must be input into the new ECM.
HINT:
When replacing the ECM with a new one, if the injector compensation code, injector pilot quantity learning value and/or catalyst thermal deterioration value are not entered, DTC P062F will be stored.

When replacing the ECM with a new one, input all learning values and codes into the new ECM as follows:

  1. Prior to replacing the ECM, use the intelligent tester to read and save each learning value and code from the original ECM (HILUX_TGN26 RM0000012XK07EX.html).

  2. After installing a new ECM, input the saved learning values and codes into the new ECM using the tester (HILUX_TGN26 RM0000012XK07EX.html).

  3. Turn the ignition switch off and turn the tester off.

  4. Wait for at least 30 seconds.

  5. Turn the ignition switch to ON and turn the tester on.

  6. Clear DTC P062F stored in the ECM using the tester (HILUX_TGN26 RM000000PDK12QX.html).

    HINT:
    1. Each fuel injector has different fuel injection characteristics. In order to optimize the fuel injections, the ECM uses the compensation codes to balance the different fuel injections between each injector.
    2. When you first turn ON the ignition switch after replacing the ECM and other component(s), DTC P062F is stored. Manually clear the DTC upon completion of compensation code registration.

      Replacement Part
      		Utility Item
      ECM
      1. Learning Values Save (HILUX_TGN26 RM0000012XK07EX_02_0007.html)
      2. Learning Values Write (HILUX_TGN26 RM0000012XK07EX_02_0008.html)
      DPF catalyst
      1. Clear DPF Thermal Deterioration Data (HILUX_TGN26 RM000000TIN056X.html)
      2. Learning Values Write (HILUX_TGN26 RM0000012XK07EX_02_0008.html)
      Injector
      1. Input Injector Compensation Code (HILUX_TGN26 RM0000012XK07EX_02_0003.html)
      2. Pilot Quantity Learning (HILUX_TGN26 RM0000012XK07EX_02_0009.html)

INSPECTION PROCEDURE

NOTICE:
  1. Inspect the fuses of circuits related to this system before performing the following inspection procedure.
  2. After replacing the ECM, the new ECM needs registration (HILUX_TGN26 RM0000012XK07EX.html) and initialization (HILUX_TGN26 RM000000TIN056X.html).
  3. After replacing the fuel supply pump assembly, the ECM needs initialization (HILUX_TGN26 RM000000TIN056X.html).
  4. After replacing an injector assembly, the ECM needs registration (HILUX_TGN26 RM0000012XK07EX.html).
HINT:
Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
1.LEARNING VALUES CONFIRMATION

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

    NOTICE:
    Do not start the engine.

  1. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning values confirmation (HILUX_TGN26 RM0000012XK07EX_02_0006.html).

    Result
    Result
    		Proceed to
    The injector compensation codes are not input
    		A
    The injector compensation codes registered in the ECM are different than the codes imprinted on the injectors
    		A
    The pilot quantity learning values are set to the default values
    		B
    The catalyst deterioration learning values are set to the default values
    		B
    Except above
    		C

    HINT:
    1. When the catalyst deterioration learning values are set to the default values, "FFFFFFFF" is displayed.
    2. When the fuel injector pilot quantity learning values are set to the default values, "7FFF" is displayed.


B
Go to step 3

C
Go to step 8
A


2.REGISTER INJECTOR COMPENSATION CODE

  1. Register the injector compensation code (HILUX_TGN26 RM0000012XK07EX_02_0003.html).



NEXT
Go to step 5

3.LEARNING VALUES WRITE
HINT:
When replacing the ECM, after performing "Learning Values Save" to save the learned values from the old ECM using the intelligent tester and replacing the old ECM with a new one, "Learning Values Write" was not performed using the intelligent tester causing this DTC to be output.

  1. Install the old ECM.

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the intelligent tester on.

  1. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning values save (HILUX_TGN26 RM0000012XK07EX_02_0007.html).

  1. Remove the old ECM.

  1. Install a new ECM.

  1. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning values write (HILUX_TGN26 RM0000012XK07EX_02_0008.html).


NEXT


4.LEARNING VALUES CONFIRMATION

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

    NOTICE:
    Do not start the engine.

  1. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning values confirmation (HILUX_TGN26 RM0000012XK07EX_02_0006.html).

    Result
    Result
    		Proceed to
    The pilot quantity learning values are set to the default values
    		A
    The catalyst deterioration learning values are set to the default values
    		B
    Except above
    		C

    HINT:
    1. When the catalyst deterioration learning values are set to the default values, "FFFFFFFF" is displayed.
    2. When the fuel injector pilot quantity learning values are set to the default values, "7FFF" is displayed.


B
Go to step 6

C
Go to step 10
A


5.PILOT QUANTITY LEARNING

  1. Perform the fuel injector pilot quantity learning (HILUX_TGN26 RM0000012XK07EX_02_0009.html).



NEXT
Go to step 8

6.REPLACE FRONT EXHAUST PIPE ASSEMBLY (CATALYST CONVERTER)

  1. Replace the front exhaust pipe assembly (HILUX_TGN26 RM00000456A00CX.html).


NEXT


7.CATALYST RECORD CLEAR

  1. Perform the catalyst record clear (HILUX_TGN26 RM000000TIN056X.html).


NEXT


8.CHECK DTC OUTPUT

  1. Connect the intelligent tester to the DLC3.

  1. Clear the DTCs (HILUX_TGN26 RM000000PDK12QX.html).

  1. Turn the ignition switch off and leave the vehicle for 30 seconds or more.

  1. Turn the ignition switch to ON for 1 second.

  1. Enter the following menus: Powertrain / Engine and ECT / DTC.

  1. Read the DTCs.

    Result
    Result
    		Proceed to
    No DTC is output
    		A
    P062F is output
    		B



B
Go to step 9
A

END

9.REPLACE ECM

  1. Replace the ECM (HILUX_TGN26 RM0000013Z001IX.html).



NEXT
Go to step 10

10.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the intelligent tester to the DLC3.

  1. Clear the DTCs (HILUX_TGN26 RM000000PDK12QX.html).

  1. Turn the ignition switch off and leave the vehicle for 30 seconds or more.

  1. Turn the ignition switch to ON for 1 second.

  1. Enter the following menus: Powertrain / Engine and ECT / DTC.

  1. Confirm that the DTC is not output again.


NEXT

END