Dear all, 

I have MM 440 , I am trying to change P0003 from 0 to 1 to access to P1082 but couldn't change it ,

each time change 0 to 1 but didn't accept

the only parameter which appeared in front screen  P0010 , P0012 , P003 

looks like the parameters have been locked?

can you see P0013?

what is r0002 showing?

P0004 set to 0?

Tractor