Gearbox Error YRV Turbo

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Hey I´m Andre from Germany,

i´ve got a big problem with my YRV Turbo or here in Germany called Gtti! Nobody here in Hamburg could help me!

I´ve changed the gearbox oil (Dexron III) and a few days earlier, on street without any forewarning, the check engine light appears and the D4 lamp starts to flashes!

Now the car is stuck in first gear! A Daihatsu workshop read out the OBD2, the following errorcodes appears!

P0705 Transmission range (TR) сенсор/switch, PRNDL input - circuit malfunction
P0720 Vehicle speed сенсор (VSS) - circuit malfunction
P0763 Shift solenoid (SS) C - electrical
P1704 Shift gear SW circuit short
P1705 Shift UP/DOWN SW circuit short

and P0715

I´ve changed every sensor that is located at the gearbox, but the problem is already there!

Hopefully you could help me!

Andre