Mine has been on all the time when I put it in drive I’ve change the brake switch taken off cleaned and rebuilt the safety neutral switch readjusted it 20 times or more but still the same put a OB tester on it and it tells me I have a fault on the a circuit showing a fault number P0705 I think still drives okay so I am inclined to leave it changes for all the gears okay but just have the hill decent light permanently on when I’m in Drive not sure what to do next or where to look next don’t think it’s a problem with the gearbox obviously one of the sensors but don’t know where to look next