Pete,
I did the test by pulling the fuse.With or without fuse it's working the same.
I start with 1-2 than I swith to 3, than D, but the RPM remain the same.When I downshift to 1-2, I can feel the engine brake, the car slow down.
I cheked all conectors, they apears to be in good condition.
What do you think?
Thanks again.