Automatic Transmission System (For 1Gd-Ftv) Diagnosis System

  1. EURO-OBD

  1. NORMAL MODE AND CHECK MODE

  1. 2 TRIP DETECTION LOGIC

  1. FREEZE FRAME DATA

  1. CHECK DATA LINK CONNECTOR 3 (DLC3)

  1. CHECK MIL

Automatic Transmission System (For 1Gd-Ftv) -- Diagnosis System



EURO-OBD

  1. When troubleshooting Europe On-Board Diagnostic (Euro-OBD) vehicles, the vehicle must be connected to an OBD scan tool (complying with ISO 15765-4). Various data output from the vehicle's ECM can then be read.



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  2. Euro-OBD regulations require that the vehicle's on-board computer illuminate the Malfunction Indicator Lamp (MIL) on the instrument panel when the computer detects a malfunction in:

    1. The emission control system/components.

    2. The powertrain control components (which affect vehicle emissions)

    3. The computer itself.
      In addition, the applicable Diagnostic Trouble Codes (DTCs) prescribed by ISO 15765-4 are stored in the ECM memory.
      If the malfunction does not reoccur in 3 consecutive trips, the MIL turns off automatically but the DTCs remain stored in the ECM memory.

  3. To check DTCs, connect the GTS or OBD scan tool to the Data Link Connector 3 (DLC3) of the vehicle. The scan tool displays DTCs, the freeze frame data and a variety of engine data.
    The DTCs and freeze frame data can be cleared using the scan tool (LandCruiser RM000000W7711KX.html).


NORMAL MODE AND CHECK MODE

  1. The diagnosis system operates in "normal mode" during normal vehicle use. In normal mode, "2 trip detection logic" is used to ensure accurate detection of malfunctions. "Check mode" is also available to technicians as an option. In check mode, "1 trip detection logic" is used for simulating malfunction symptoms and increasing the system's ability to detect malfunctions, including intermittent malfunctions.


2 TRIP DETECTION LOGIC

  1. When a malfunction is first detected, the malfunction is temporarily stored in the ECM memory (1st trip). If the same malfunction is detected during the next drive cycle, the MIL is illuminated (2nd trip).


FREEZE FRAME DATA

  1. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was moving or stationary, whether the engine was warmed up or not, whether the air/fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.



    2. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Ac60F Automatic Transmission Transaxle.Automatic Transmission System (For 1Gr-Fe).Automatic Transmission System (For 1Gd-Ftv) Diagnosis System

  2. The GTS records freeze frame data in 5 different instances: 1) 3 times before the DTC is stored, 2) once when the DTC is stored, and 3) once after the DTC is stored. These sets of data can be used to simulate the vehicle condition around the time when the malfunction occurred. The data may help in finding the cause of the malfunction, or in judging if the DTC was caused by a temporary malfunction.


CHECK DATA LINK CONNECTOR 3 (DLC3)

  1. Check the DLC3 (LandCruiser RM000003YMH00MX.html).


CHECK MIL

  1. Check that the MIL illuminates when turning the engine switch on (IG).
    If the MIL does not illuminate, there is a problem in the MIL circuit (ECD System: LandCruiser RM000000WZ11B9X.html, ECD System (w/ Urea SCR System): LandCruiser RM000000WZ11ASX.html).

  2. When the engine is started, the MIL should turn off.