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 stored in the ECM memory. If the malfunction does not recur 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 scan tool displays DTCs and a variety of engine data.
The DTCs can be cleared using the scan tool.
DLC3 (Data Link Connector 3)
Check the DLC3.
BATTERY VOLTAGE
Standard Voltage
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
MIL (Malfunction Indicator Lamp)
The MIL is illuminated when the ignition switch is turned to ON (with the engine not running).
The MIL turns off when the engine is started. If the MIL remains illuminated, the diagnosis system has detected a malfunction or abnormality in the system.
Tip:If the MIL is not illuminated when the ignition switch is turned to ON, check the MIL circuit.