This signal is transmitted from DCU to the vehicle within the message DCU_Veh_#1.
The signal value is calculated using boolean variables: door system type 0 to door system type 7 .

Signal value	Description
0001 XXXX	Rapid Slider (Left or both).
0010 XXXX	Plug Slider( Left or both).
0011 XXXX	Plug Slider 2 ( Left or both).
0100 XXXX	Outward Swinging (Left or both).
0101 XXXX	inward Gliding (Ventura doors) (Left or both).
0110 XXXX	inward Gliding (Iveco doors) (Left or both).
0111 XXXX-1111 XXXX	Not used.
XXXX 0000	Door system not used (Right Leaf not as separate).
XXXX 0001	Rapid Slider (Right Leaf as separate).
XXXX 0010	Plug Slider (Right Leaf as separate).
XXXX 0011	Plug Slider 2 (Right Leaf as separate).
XXXX 0100	Outward Swinging (Right Leaf as separate).
XXXX 0101	inward Gliding (Ventura doors) (Right Leaf as separate).
XXXX 0110	inward Gliding (Iveco doors) (Right Leaf as separate).
XXXX 0111-XXXX 1111	Not used.
0000 XXXX	illegal combination.