Dtc P062F Internal Control Module Eeprom Error


DESCRIPTION

INSPECTION PROCEDURE

LEARNING VALUES CONFIRMATION

PERFORM LEARNING VALUES SAVE

PERFORM LEARNING VALUES WRITE

PERFORM LEARNING VALUES SAVE

PERFORM LEARNING VALUES WRITE

REGISTER INJECTOR COMPENSATION CODE

PERFORM PILOT QUANTITY LEARNING

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
Engine switch on (IG) for 1 second
When any condition below is met (1 trip detection logic):
  1. Injector compensation code is not registered.
  2. Wrong injector compensation code is registered.
  3. Injector pilot quantity learning value is not registered.
  4. Crank Time Compensation Learning value is not registered.*
  1. Injector compensation code
  2. Injector pilot quantity learning value
  3. Crank time compensation learning value
  4. ECM
*: When this malfunction occurs, the MIL does not illuminate.
NOTICE:
  1. When a injector assembly is replaced, the new injector compensation code must be input into the ECM. When the ECM is replaced, all of the existing injector compensation codes must be input into the new ECM.
  2. Injector compensation codes are unique, 30-digit, alphanumeric values printed on the head portion of each injector assembly. If an incorrect 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 injector assembly is replaced, perform pilot quantity learning. When the ECM is replaced, all of the existing pilot quantity learning values must be input into the new ECM.
HINT:
When replacing the ECM with a new one, if the injector compensation code and pilot quantity learning value are not entered or the injector compensation code is not registered correctly, 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 GTS to read and save each learning value and code from the original ECM (LandCruiser RM0000012XK0AUX.html).

  2. After installing a new ECM, input the saved learning values and codes into the new ECM using the GTS (LandCruiser RM0000012XK0AUX.html).

  3. Turn the engine switch off and turn the GTS off.

  4. Wait for at least 30 seconds.

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

  6. Clear DTC P062F stored in the ECM using the GTS (LandCruiser RM000000PDK1E5X.html).

    HINT:
    1. Each injector assembly has different fuel injection characteristics. In order to optimize the fuel injections, the ECM uses the injector compensation codes to balance the different fuel injections between each injector assembly.
    2. When you first turn ON the engine 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 (LandCruiser RM0000012XK0AUX_02_0007.html)
      2. Learning Values Write (LandCruiser RM0000012XK0AUX_02_0008.html)
      Injector Assembly
      1. Input Injector Compensation Code (LandCruiser RM0000012XK0AUX_02_0003.html)
      2. Pilot Quantity Learning (LandCruiser RM0000012XK0AUX_02_0009.html)

INSPECTION PROCEDURE

NOTICE:
After replacing the ECM, the new ECM needs registration (LandCruiser RM0000012XK0AUX.html) and initialization (LandCruiser RM000000TIN08HX.html).
HINT:
Read freeze frame data using the GTS. 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 GTS to the DLC3.

  1. Turn the engine switch on (IG) and turn the GTS on.

    NOTICE:
    Do not start the engine.

  1. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning Values Confirmation (LandCruiser RM0000012XK0AUX_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
    		B
    The pilot quantity learning values are set to the default values
    		C
    Except above
    		D

    HINT:
    1. When the pilot quantity learning values are set to the default values, "7FFF" is displayed.


B
Go to step 6

C
Go to step 7

D
Go to step 8
A


2.PERFORM LEARNING VALUES SAVE

  1. Install the old ECM.

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG) and turn the GTS on.

  1. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning Values Save.

  1. Perform the Learning Values Save (LandCruiser RM0000012XK0AUX_02_0007.html).

    Result
    Result
    		Proceed to
    Learning Values Save is complete
    		A
    Learning Values Save is fail
    		B



B
Go to step 6
A


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

  1. Remove the old ECM.

  1. Install the new ECM.

  1. Turn the engine switch on (IG) and turn the GTS on.

  1. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning Values Write.

  1. Perform the Learning Values Write (LandCruiser RM0000012XK0AUX_02_0008.html).

    Result
    Result
    		Proceed to
    Learning Values Write is complete
    		A
    Learning Values Write is fail
    		B



A
Go to step 8
B


4.PERFORM LEARNING VALUES SAVE

  1. Remove the new ECM.

  1. Install the old ECM.

  1. Turn the engine switch on (IG) and turn the GTS on.

  1. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning Values Save (LandCruiser RM0000012XK0AUX_02_0007.html).


NEXT


5.PERFORM LEARNING VALUES WRITE

  1. Remove the old ECM.

  1. Install the new ECM.

  1. Turn the engine switch on (IG) and turn the GTS on.

  1. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning Values Write.

  1. Perform the Learning Values Write (LandCruiser RM0000012XK0AUX_02_0008.html).

    Result
    Result
    		Proceed to
    Learning Values Write is fail
    		A
    Learning Values Write is complete
    		B



B
Go to step 8
A


6.REGISTER INJECTOR COMPENSATION CODE

  1. Register the injector compensation code (LandCruiser RM0000012XK0AUX_02_0003.html).


NEXT


7.PERFORM PILOT QUANTITY LEARNING

  1. Perform the fuel injector pilot quantity learning (LandCruiser RM0000012XK0AUX_02_0009.html).


NEXT


8.CHECK DTC OUTPUT

  1. Connect the GTS to the DLC3.

  1. Clear the DTCs (LandCruiser RM000000PDK1E5X.html).

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

  1. Turn the engine switch on (IG) for 1 second.

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

  1. Read the DTCs.

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



B
END
A


9.REPLACE ECM

  1. Replace the ECM (LandCruiser RM0000013Z002DX.html).


NEXT


10.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the GTS to the DLC3.

  1. Clear the DTCs (LandCruiser RM000000PDK1E5X.html).

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

  1. Turn the engine switch on (IG) for 1 second.

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

  1. Confirm that the DTC is not output again.


NEXT

END