K12 AT issues

Dear Friends ,
My K12 2010 with Auto gearbox is stopped working with no D and only a very fainted Reverse.
When i select R a very loud clunk happens and and there no engaing D.

The engine ligh is ON and the code i get is P0848 "Transmission Pressure switch High"
can some one point me to the right direction? where is this switch located?

Cheers
 
Top