vincent avila

Can anyone help me please I am getting 4 different system faults on the following sequence.
First off the hill assists goes Off and says not available then I get the ESP fault - air suspension system fault-sport differential fault - tire pressure malfunction !
I had this problem about 6 months ago and my local Mechanic told me it was my map sensor which we changed and the problem went away. Now the problem is back so I changed the sensor again but the problem persists.
What can possibly be throwing all those systems off ??

Thanks