Yesterday i did the adjustment of a audi a4 rb4 D16 cluster.

with VAG PROG by obd

after the adjustment dash said DEF., mileage was succesfull.
i erased faults and the def. was out.

everything seems to be ok until we strated the car, the rev and speedometer stay at 0, it doesn't count miles and part of the dashboard illumination isn't working anymore.

now the only faultcode that is in it says: terminal 15 - implausible signal.

does anyone have any idea how to deal with this?