I have put Multicuscan onto car and the code P1720 "Gear Selector Body (From NSC) any ideas?
The gear selector body could mean the gear gate or the valve body. there is a learning procedure that teaches the gearbox how to find and change gears if its become problematic, but this may be a hardware issue that would not help with.
Does it do it all the time or is it intermittent?
try clearing the error and see if it comes back.
I have taken the gear gate off a few times, and each time I get stacks of errors afterwards that cause problems, but if I clear them its back to normal.
worth a shot.
Learning procedure FYI:
Ensure gearbox & car are warmed up to normal temps and the engine is running, connect MES to the gearbox and run the "reset auto learned parameters" function. Once complete.
Move the gearstick from park to neutral, put your foot on the break and keep it there, wait 3 seconds
move it Drive, wait 3 seconds and move back to neutral and wait 3 seconds. repeat 5 times.
Then, move from neutral to reverse, wait 3 seconds, move back to neutral and wait 3 seconds, and repeat 5 times.
Once done, go back to park.
Now, put it in drive and accelerate at 25% power through 1-2-3-4-5-6, then decelerate, without breaking through 6-5-4-3-2-1. You must decelerate within 60 seconds and must have been travelling over 50mph in 6th. Repeat this 10 - 15 times or until the gear-shifts have become unnoticeable.