Switch For Unlocking The Fuel Tank Filler Cover
The switch for unlocking the fuel tank filler cover is located on the light switch module (LSM) (3/111). The switch is only on vehicles with fuel tank leakage diagnostics.
Light switch module (LSM) communicates in serial with the central electronic module (CEM). If the switch is pressed the central electronic module (CEM) sends a request to the rear electronic module (REM) that the lock motor for the fuel tank filler cover is activated. The cover can be opened if the speed of the vehicle is less than 7 km/h (5 mph).
The fuel tank filler cover is opened after a delay so that the automatic check for fuel leakage can be interrupted and the fuel tank pressure equalized. The fuel tank filler cover is then locked when the vehicle reaches a speed of 16 km/h (10 mph) or after 10 minutes if the vehicle has 2 stage locking function.