Ecd System (W/ Dpf) After Treatment Control System

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

INSPECTION PROCEDURE

TAKE SNAPSHOT DURING IDLING AND 4000 RPM (PROCEDURE 1)

READ VALUE USING GTS (CATALYST DIFFERENTIAL PRESS AND CATALYST DIFFERENTIAL PRESS #2)

REPLACE EXHAUST PIPE ASSEMBLIES (DPF CATALYTIC CONVERTERS)

CATALYST RECORD CLEAR

PERFORM PM FORCED REGENERATION

ECD SYSTEM (w/ DPF) - After Treatment Control System


INSPECTION PROCEDURE

1.TAKE SNAPSHOT DURING IDLING AND 4000 RPM (PROCEDURE 1)

  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 / Catalytic Converter.

  1. Take a snapshot of the Data List items.

    HINT:
    1. A snapshot can be used to compare vehicle data from the time of the malfunction to normal data and is very useful for troubleshooting. The data in the list below is that of a normal vehicle, but as the data varies between individual vehicles, this data should only be used for reference.
    2. Check the Data List at idling and at 4000 rpm with no load after the engine is warmed up.

NEXT


2.READ VALUE USING GTS (CATALYST DIFFERENTIAL PRESS AND CATALYST DIFFERENTIAL PRESS #2)

  1. Check Catalyst Differential Press and Catalyst Differential Press #2 in the snapshot taken in procedure 1 when the engine was running at 4000 rpm with no load.

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



B
END
A


3.REPLACE EXHAUST PIPE ASSEMBLIES (DPF CATALYTIC CONVERTERS)

  1. Replace the front exhaust pipe assembly (for bank 1 DPF catalytic converter) (Click here).

  1. Replace the front No. 2 exhaust pipe assembly (for bank 2 DPF catalytic converter) (Click here).

    HINT:
    Replace the DPF catalytic converter for bank 1 and bank 2 at the same time.

NEXT


4.CATALYST RECORD CLEAR

  1. Connect the GTS to the DLC3.

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

  1. Enter the menu options in this order: Powertrain / Engine and ECT / Utility / Catalyst Record Clear.


NEXT


5.PERFORM PM FORCED REGENERATION

  1. Turn the ignition switch to ON.

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

  1. Turn the ignition switch to ON and wait for 10 seconds or more

  1. Connect the GTS to the DLC3.

  1. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.

  1. Maintain the maximum possible engine speed under no load for 10 seconds to blow out all soot from inside the exhaust pipe.

    HINT:
    1. If only a low engine speed is continuously maintained, soot may accumulate at the end of the catalyst.
    2. When soot accumulates at the end of the catalyst, it may not be possible to perform PM forced regeneration control normally.

  1. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the DPF Rejuvenate (PM) / Data List /Exhaust Temperature B1S3, Exhaust Temperature B2S3

  1. Perform the Active Test.

    CAUTION:
    Be careful of the exhaust pipes and surrounding areas, as they become extremely hot when performing PM forced regeneration.

  1. After 10 minutes have passed with the engine coolant temperature at 80°C (176°F) or higher during PM regeneration, check the value of Exhaust Temperature B1S3 and Exhaust Temperature B2S3.

    HINT:
    1. PM forced regeneration takes 15 to 40 minutes to finish.
    2. The time it takes to complete PM forced regeneration changes depending on "PM Accumulation Ratio" and the vehicle operating conditions.
    3. If the value of "Catalyst Differential Press" increases too much during the PM forced regeneration, the fail-safe function activates and PM forced regeneration is stopped.
    4. Perform PM forced regeneration control until the display on the multi-information display turns off.
    5. If actions such as depressing the accelerator pedal or clutch pedal, etc. are performed during PM forced regeneration, PM forced regeneration stops. If PM forced regeneration stops, it is necessary to perform it again.
    6. PM forced regeneration control is not complete until the display on the combination meter turns off.

    Result
    Result
    		Proceed to
    Exhaust Temperature Sensor B1S3 does not reach 500°C (932°F)*
    		A
    Exhaust Temperature Sensor B2S3 does not reach 500°C (932°F)*
    Exhaust Temperature Sensor B1S3, Exhaust Temperature Sensor B2S3 reaches 500°C (932°F) or higher
    		B
    HINT:
    1. If Exhaust Temperature Sensor B1S3 is not 500°C or more, the exhaust fuel addition injector assembly (for Bank 1) may be blocked.
    2. If Exhaust Temperature Sensor B2S3 is not 500°C or more, the exhaust fuel addition injector assembly (for Bank 1) may be blocked.


B
END
A

REPLACE EXHAUST FUEL ADDITION INJECTOR ASSEMBLY (BANK 1 OR BANK 2) (Click here)