Sfi System - Diagnosis System

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1UR-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 illuminates 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 affects vehicle emissions).

The computer


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.


To check DTCs, connect the GTS or OBD scan tool to the Data Link Connector 3 (DLC3) of the vehicle.


The DTCs and freeze frame data can be cleared using the scan tool ().

M-OBD (EXCEPT EUROPEAN SPEC.)
Sfi System - Diagnosis System. 1UR-FE ENGINE CONTROL. Land Cruiser URJ200 URJ202 GRJ200 VDJ200
When troubleshooting a 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 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 stored 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
When a malfunction is first detected, a DTC is temporarily stored in the ECM memory (1st trip). If the same malfunction is detected during the next subsequent drive cycle, the MIL is illuminated (2nd trip).
DLC3 (Data Link Connector 3)

Check the DLC3 ().

BATTERY VOLTAGE
  • Standard voltage:
  • 11 to 14 V
If voltage is below 11 V, replace or recharge the battery before proceeding.
MIL (Malfunction Indicator Lamp)

The MIL is illuminated when the engine switch is first turned on (IG) (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 engine switch is first turned on (IG), check the MIL circuit ().
ALL READINESS
  • HINT:
With "All Readiness", you can check whether or not the DTC judgment has been completed by using the GTS.
Check "All Readiness" after simulating malfunction symptoms or for validation after finishing repairs.

Connect the GTS to the DLC3.

Turn the engine switch on (IG).

Turn the GTS on.

Clear the DTCs.

Turn the engine switch off and wait for at least 30 seconds.

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

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 confirmed.

Check the DTC judgment result.

GTS
GTS DisplayDescription
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