Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1GR-FE ENGINE CONTROL
SFI SYSTEM - DIAGNOSIS SYSTEM
| EURO-OBD (EUROPEAN SPEC.) |
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.
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:
The emission control system components
The powertrain control components (which affect vehicle emissions)
The computer
In addition, the applicable Diagnostic Trouble Codes (DTCs) prescribed by ISO 15765-4 are recorded in the ECM memory. If the malfunction does not reoccur in 3 consecutive trips, the MIL turns off automatically but the DTCs remain recorded in the ECM memory.
To check DTCs, connect an 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 erased the scan tool ().
| M-OBD (EXCEPT EUROPEAN SPEC.) |
When troubleshooting Multiplex On-Board Diagnostic (M-OBD) vehicle, the vehicle must be connected to the GTS. Various data output from the ECM can then be read.
OBD regulations require that the vehicle's on-board computer illuminate the MIL on the instrument panel when the computer detects a malfunction in:
The emission control system/components
The powertrain control components (which affect vehicle emissions)
The computer
In addition, the applicable DTCs are recorded in the ECM memory. If the malfunction does not recur in 3 consecutive trips, the MIL turns off automatically but the DTCs remain recorded in the ECM memory.
| NORMAL MODE AND CHECK MODE |
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 as an option for technicians. In check mode, 1 trip detection logic is used to increase the system's ability to detect malfunctions, including intermittent problems, when simulating malfunction symptoms (GTS only).
| 2 TRIP DETECTION LOGIC |
| FREEZE FRAME DATA |
| BATTERY VOLTAGE |
- Standard voltage:
- 11 to 14 V
| MIL (Malfunction Indicator Lamp) |
The MIL is illuminated when the ignition switch is first turned to ON (the engine is not running).
The MIL should turn off when the engine is started. If the MIL remains illuminated, the diagnosis system has detected a malfunction or abnormality in the system.
- HINT:
- If the MIL is not illuminated when the ignition switch is first turned to ON, check the MIL circuit ().
| ALL READINESS |
- HINT:
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs ().
Perform the DTC judgment driving pattern to run the DTC judgment.
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
Input the DTCs to be checked.
Check the DTC judgment result.
| GTS Display | Description |
| NORMAL | DTC judgment completed System normal |
| ABNORMAL | DTC judgment completed System abnormal |
| INCOMPLETE | DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions |
| N/A | Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit |