Ecd System (W/ Urea Scr System) Precaution

  1. INITIALIZATION AND REGISTRATION

  1. INJECTOR COMPENSATION CODE

  1. CATALYST RECORD OF DPF THERMAL DETERIORATION

  1. PILOT QUANTITY LEARNING

  1. ENGINE DIFFICULT TO START, ENGINE STALLING, BLACK SMOKE EMITTED, ROUGH IDLING, EXCESSIVE ENGINE VIBRATION, ENGINE KNOCKING, LACK OF POWER OR HESITATION

  1. WHEN USING GTS

Ecd System (W/ Urea Scr System) -- Precaution



1.INITIALIZATION AND REGISTRATION
NOTICE:
When replacing the ECM and/or any other components in the following chart, perform the corresponding utility items.

HINT:
When the ECM and one or more other components are replaced at the same time, perform the following utility items by following the instructions shown on the GTS display, starting with the ECM.

Replacement Part
Utility Item
ECM
  1. Learning Values Save (LandCruiser RM0000012XK0AUX_02_0007.html)
  2. Learning Values Write (LandCruiser RM0000012XK0AUX_02_0008.html)
  3. VIN Registration (LandCruiser RM0000012XK0AUX_02_0012.html)
Engine assembly
  1. Clear Crank Time Compensation Data (LandCruiser RM000000TIN08HX.html)
  2. Input Injector Compensation Code (LandCruiser RM0000012XK0AUX_02_0003.html)
  3. Pilot Quantity Learning (LandCruiser RM0000012XK0AUX_02_0009.html)
Crankshaft position sensor plate
Clear Crank Time Compensation Data (LandCruiser RM000000TIN08HX.html)
Air fuel ratio sensor
Clear A/F Sensor Compensation data (LandCruiser RM000000TIN08HX.html)
Exhaust manifold converter sub-assembly
Clear DPF Deterioration Data (LandCruiser RM000000TIN08HX.html)
Injector assembly
  1. Input Injector Compensation Code (LandCruiser RM0000012XK0AUX_02_0003.html)
  2. Pilot Quantity Learning (LandCruiser RM0000012XK0AUX_02_0009.html)
HINT:
When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing the new ECM, perform all of the initializations / registrations for the "Learning Values Write" function by following the instructions shown on the GTS display.

2.INJECTOR COMPENSATION CODE
HINT:
  1. Each injector assembly has different fuel injection characteristics. In order to optimize fuel injection performance, the ECM compensates for these differences by adjusting the fuel injection duration of each injector assembly according to its compensation code. Injector compensation codes are unique, 30-digit, alphanumeric values printed on the head portion of each injector assembly.
  2. If an incorrect injector compensation code is input into the ECM, the engine may rattle or engine idling may become rough. In addition, engine failure may occur and the life of the engine may be shortened.


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gd-Ftv Engine Control.Ecd System.Ecd System (W/ Urea Scr System) Precaution

  1. When an injector assembly is replaced, the injector compensation code must be input into the ECM (LandCruiser RM0000012XK0AUX_02_0003.html).

    Text in Illustration
    *a
    		Example
    *b
    		Injector Compensation Code

  2. When the ECM is replaced, all of the existing injector compensation codes must be input into the new ECM (LandCruiser RM0000012XK0AUX_02_0003.html).


3.CATALYST RECORD OF DPF THERMAL DETERIORATION
HINT:
The ECM stores the history data of DPF catalyst thermal deterioration. This data is updated continuously and is then converted to an 8-digit code and is stored in the EEPROM. If the ECM determines that replacement of the exhaust manifold converter sub-assembly (DPF catalyst) is required based on the thermal deterioration data, the DTC is stored to inform the driver.

  1. When only the exhaust manifold converter sub-assembly (DPF catalyst) is replaced.

    1. After replacing the exhaust manifold converter sub-assembly (DPF catalyst), clear the thermal deterioration data stored in the ECM (LandCruiser RM000000TIN08HX.html).

  2. When only the ECM is replaced.

    1. After replacing the ECM, input the original thermal deterioration data stored before replacement (LandCruiser RM0000012XK0AUX_02_0008.html).

      NOTICE:
      1. Read the thermal deterioration data stored in the ECM before replacement, and store the data in the GTS.
      2. If the thermal deterioration data cannot be read, be sure to replace the exhaust manifold converter sub-assembly (DPF catalyst) with a new one and initialize the ECM (LandCruiser RM000000TIN08HX.html).

4.PILOT QUANTITY LEARNING
HINT:
  1. By performing "Pilot Quantity Learning", the injection volume for each cylinder is precisely adjusted so that the engine runs smoothly. The "Pilot Quantity Learning" information is stored in the EEPROM of the ECM.
  2. If an incorrect pilot quantity learning value is input into the ECM, the engine may rattle or engine idling may become rough.

  1. When an injector assembly is replaced, the injector compensation code must be input to the ECM, and then pilot quantity learning must be performed (LandCruiser RM0000012XK0AUX_02_0009.html).

  2. When the ECM is replaced, all of the existing injector pilot quantity learning values must be input into the new ECM (LandCruiser RM0000012XK0AUX_02_0009.html).


5.ENGINE DIFFICULT TO START, ENGINE STALLING, BLACK SMOKE EMITTED, ROUGH IDLING, EXCESSIVE ENGINE VIBRATION, ENGINE KNOCKING, LACK OF POWER OR HESITATION

  1. Check if the customer problem is described below. If so, refer to the appropriate troubleshooting section.

    1. Engine is difficult to start or stalling.

    2. Black smoke is emitted.

    3. There is rough idling or excessive engine vibrations.

    4. There is engine knocking or rattling.

    5. There is a lack of power or hesitation.


6.WHEN USING GTS
CAUTION:
  1. Observe the following items for safety reasons:
    1. Read the GTS's instruction books before using the GTS.
    2. Make sure that the GTS cable is not caught on the pedals, shift lever or steering wheel when driving with the GTS connected to the vehicle.
    3. When driving the vehicle for testing purposes using the GTS, two persons are required. One drives the vehicle and the other operates the GTS.