help with egr switch fault code
 

i got a fault code 16 which is the egr switch fault code has anybody had any problems with this and if so what was the fix my car is a cali car so the blue connector is connected i dont really know where to start except maybe replacing the egr valve i checks all of the old threads and didnt really find anything useful any help is appreciated and thanks in advance

come guys somebody has had to have a problem with this before