Dtc P244B Diesel Particulate Filter Differential Pressure Too High

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
1Vd-Ftv Engine Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

MONITOR DESCRIPTION

INSPECTION PROCEDURE

READ OUTPUT DTC (RECORD STORED DTC AND FREEZE FRAME DATA)

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P244B OR P2465)

READ VALUE USING GTS (DPF DIFFERENTIAL PRESSURE)

CLEAN OR REPLACE VACUUM TRANSMITTING HOSE

CHECK FOR BLACK SMOKE

PERFORM PM FORCED REGENERATION

READ VALUE USING GTS (CATALYST DIFFERENTIAL PRESS)

REPLACE EXHAUST PIPE ASSEMBLY (DPF CATALYST CONVERTER)

GO TO DTC CHART

CHECK FUEL INJECTION SYSTEM

CHECK INTAKE / EXHAUST SYSTEM

CHECK AFTER TREATMENT CONTROL SYSTEM

REPAIR OR REPLACE MALFUNCTIONING PARTS

CATALYST RECORD CLEAR

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

DTC P244B Diesel Particulate Filter Differential Pressure Too High

DTC P2465 Diesel Particulate Filter Differential Pressure Too High Bank 2


DESCRIPTION

Refer to DTC P244C (Click here).

P244B (Bank 1), P2465 (Bank 2)
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Engine is running at 4000 rpm with no load for 10 seconds or more.
While driving, Catalyst Differential Pressure becomes more than 0.45 for 3 seconds.
(1 trip detection logic)
  1. Front exhaust pipe assembly (for bank 1 DPF catalytic converter)
  2. Front No. 2 exhaust pipe assembly (for bank 2 DPF catalytic converter)
  3. Differential pressure sensor assembly (for bank 1)
  4. Differential pressure sensor assembly (for bank 2)
Common Inspection Item:
  1. Fuel injection system
  2. Intake/exhaust system
  3. After treatment control system

Related Data List
DTC No.
Data List
P244B
  1. DPF Differential Pressure
  2. Catalyst Differential Press
  3. Exhaust Fuel Addition FB
P2465
  1. DPF Differential Pressure #2
  2. Catalyst Differential Press #2
  3. Exhaust Fuel Addition FB #2

MONITOR DESCRIPTION

The ECM compares pressure upstream and downstream of the DPF catalyst converter to monitor the differential pressure. If the differential pressure is large, the ECM determines that the DPF catalyst converter is contaminated or has deteriorated and illuminates the MIL.

Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P244B Diesel Particulate Filter Differential Pressure Too High


INSPECTION PROCEDURE

NOTICE:
  1. After replacing the ECM, the new ECM needs registration (Click here) and initialization (Click here).
  2. After replacing the fuel supply pump assembly, the ECM needs initialization (Click here).
  3. After replacing an injector assembly, the ECM needs registration (Click here).
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.READ OUTPUT DTC (RECORD STORED DTC AND FREEZE FRAME DATA)

  1. Connect the GTS to the DLC3.

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

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

  1. Record the stored DTC and freeze frame data.

  1. Check Exhaust Fuel Addition FB, Exhaust Fuel Addition FB #2, Catalyst Differential Press and Catalyst Differential Press #2 in the freeze frame data.

    HINT:
    1. When the Exhaust Fuel Addition FB and Exhaust Fuel Addition FB #2 values are 1.45 or more, it indicates a high possibility of insufficient temperature increase during PM forced regeneration.
    2. When the Catalyst Differential Press and Catalyst Differential Press #2 values are 0.45 or more, it indicates a high possibility that the DPF catalyst is clogged.

NEXT


2.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P244B OR P2465)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

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

  1. Read the DTCs.

    Result
    Result
    		Proceed to
    P244B or P2465 is output
    		A
    P244B or P2465 is output at the same time as P2463*
    Other relevant DTCs are output
    		B
    HINT:
    *: When P244B or P2465 is output at the same time as P2463, perform this diagnostic procedure. When DTC P244B or P2465 is not output at the same time as P2463 is output, perform the diagnostic procedure for P244C or P244E (Click here).


B
Go to step 9
A


3.READ VALUE USING GTS (DPF DIFFERENTIAL PRESSURE)

  1. Connect the GTS to the DLC3.

  1. Start the engine and turn the GTS on.

  1. Enter the following menus: Engine and ECT / Data List / DPF Differential Pressure and DPF Differential Pressure #2.



  1. Check the DPF Differential Pressure and DPF Differential Pressure #2 values from idle speed to unloaded maximum engine speed.

    Result
    Result
    		Proceed to
    DPF Differential Pressure and DPF Differential Pressure #2 increase as engine speed increases from idle speed
    		A
    Except above
    		B

    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P244B Diesel Particulate Filter Differential Pressure Too High

    HINT:
    If DPF Differential Pressure and DPF Differential Pressure #2 indicate negative pressure for approx. 1 second as shown in the illustration (A) when the engine speed increases, the differential pressure sensor piping of the DPF catalyst may be clogged.


A
Go to step 5
B


4.CLEAN OR REPLACE VACUUM TRANSMITTING HOSE

  1. Even though it has been determined that the vacuum transmitting hose needs to be repaired or cleaned, make sure to perform all diagnostic procedures for DTC P244B or P2465 before repairing or cleaning it.



NEXT
Go to step 5

5.CHECK FOR BLACK SMOKE

  1. Start the engine and drive the vehicle until the engine coolant temperature reaches 60°C (140°F) or higher.

  1. Stop the vehicle and allow the engine to idle.

  1. Fully depress the accelerator pedal for 5 seconds, and then release it [A].

  1. Repeat the above procedure [A] 10 times [B].

  1. Check for black smoke emission during procedures [A] and [B].

    OK:
    Black smoke is emitted less than 5 times.
    HINT:
    Even if the black smoke is very thin, count the number of black smoke emissions if there is any visible smoke.


NG
Go to step 8
OK


6.PERFORM PM FORCED REGENERATION

  1. Connect the GTS to the DLC3.

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

  1. Clear the DTCs (Click here).

  1. Start the engine.

  1. Enter the following menus: Engine and ECT / Data List / Coolant Temp.

  1. Warm up the engine (engine coolant temperature is 70°C (158°F) or higher).

  1. Perform PM forced regeneration (Click here).

  1. Turn the ignition switch off.


NEXT


7.READ VALUE USING GTS (CATALYST DIFFERENTIAL PRESS)

  1. Connect the GTS to the DLC3.

  1. Start the engine and turn the GTS on.

  1. Enter the following menus: Powertrain / Engine and ECT / Data List / Catalyst Differential Press and Catalyst Differential Press #2.

  1. Check the value of Catalyst Differential Press and Catalyst Differential Press #2 at 4000 rpm without load.

    Result
    Result
    		Proceed to
    Catalyst Differential Press or Catalyst Differential Press #2 is more than 0.45
    		A
    Except above
    		B


A
Go to step 8
B

END

8.REPLACE EXHAUST PIPE ASSEMBLY (DPF CATALYST CONVERTER)
Even though it has been determined that the DPF catalyst converter needs to be replaced, make sure to perform all diagnostic procedures for DTC P244B or P2465 before replacing it.


NEXT
Go to step 10

9.GO TO DTC CHART

  1. Perform inspection and repair of relevant DTCs (Click here).


NEXT


10.CHECK FUEL INJECTION SYSTEM

  1. Check the fuel injection system (Click here).


NEXT


11.CHECK INTAKE / EXHAUST SYSTEM

  1. Check the intake/exhaust system (Click here).


NEXT


12.CHECK AFTER TREATMENT CONTROL SYSTEM

  1. Check the after treatment control system (Click here).


NEXT


13.REPAIR OR REPLACE MALFUNCTIONING PARTS
HINT:
  1. Repair, replace or clean the following items only when it has been determined necessary based on diagnosis for DTC P244B or P2465.
  2. Replace the DPF catalytic converter for bank 1 and bank 2 at the same time.
When DTC P244B is output:
  1. Clean and/or repair the hoses of the differential pressure sensor (for bank 1).
  2. Replace the exhaust pipe assembly (for bank 1 DPF catalytic converter) (Click here).
  3. Replace the front No. 2 exhaust pipe assembly (for bank 2 DPF catalytic converter) (Click here).
When DTC P2465 is output:
  1. Clean and/or repair the hoses of the differential pressure sensor (for bank 2).
  2. Replace the exhaust pipe assembly (for bank 1 DPF catalytic converter) (Click here).
  3. Replace the front No. 2 exhaust pipe assembly (for bank 2 DPF catalytic converter) (Click here).

NEXT


14.CATALYST RECORD CLEAR

  1. Perform the catalyst record clear (Click here).


NEXT


15.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the GTS to the DLC3.

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

  1. Clear the DTCs (Click here).

  1. Perform PM forced regeneration (Click here).


NEXT

END