auto transmission fault codes. what to do next?

[tjeroen90]

Hi, i have 1996 900se turbo auto

My fault codes are:
P1790- kickdown switch, short to ground.
P1830- transmission shifting function faulty.
P1832- transmission shifting times incorrect.
when driving the check gearbox and limp home mode only comes on when it kicks down from 4th to 3rd gear while under load (over taking/up hill).
I have flushed the trans twice with fuchs titan atf 4400 (dex lll spec).
everything resets after restarting the car, and drives fine i the city.

There are not too many saab specialists in New Zealand so any advice would be appreciated.
Tim

[Jackcloud]

Hi please PM for me,tell about you questions