Hi, the lever where the selector cable connects underneath the g/box moves as it should, even by hand, as does the shaft on top of the box which the xyz switch slides on. I haven't actually checked to see if the display(s) change if I move the white collar inside that switch by hand ,good thinking), I'll give that a try tomorrow, many thanks. Do you know if I disconnect the cable under neath the box & move the lever by hand, whether the display(s) should change given that the selector lever inside is say in P/N/D etc or are there sensors by the selector lever that must correspond to the xyz switch ?