DIAGNOSIS SYSTEM DESCRIPTION
When troubleshooting OBD II (On-Board Diagnostics) vehicles, the Techstream (complying with SAE J1978) must be connected to the DLC3 (Data Link Connector 3) of the vehicle. Various data in the vehicle's ECM (Engine Control Module) can be then read.
OBD II regulation
Opening the fuel tank
cap
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle
Close all the doors and windows, and turn the engine switch off.
Confirm the type of fuel.
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your ve