why autel not put  14 pin cable for sprinter in the DS708

today i had to check a sprinter 2004 , i have a generic cable * 14 pin to 16 pin obd II*,,,when i trying to connect to sprinter  just can do it with engine control module , not more ,, i need to connect with the inmovilizer but ds708 always say link error, but autocom cdp  work very good ... i think autel should put the 14 pin sprinter adapter