Slide out won't move

[TrekGreat]

Hi
Need some expert help
Slide was working great
Took MH to transmission shop & had tranny fluid drained,flushed ,pan dropped & new filters installed
Since then slide out doesnt work when control buttons activated
Instructions on control panel say transmission must be in Park gear
There must be an interlock between slideout control panel & transmission to prevent slideout from moving if not in park gear
Is it possible when fluids were drained & pan dropped that somehow this connection between slideout control & transmission was disconnected ?????
Seems unlikely but still slideout worked fine until I had the above work done
Has anyone experienced the same problem????
Thanks
Ted 2006 Fleetwood Jamboree 23E

[BWStark]

I am no expert but you could have a sensor on the transmission that has failed. Since it is bad then the computer will not let them slide move.

[CLIFFTALL]

Try jiggling the shifter as someone else presses the slideout switch. It ( the shifter indicator ) might not be exactly in place.

[rubyred]

Emergency brake not activated?

[superk]

Do your level jacks work? If so, then the position sensor is working fine.

If not, check e brake. It should illuminate in your dash when engaged. If not, check the sensor directly under the console (follow e-brake cable to sensor below console), which lift up for access, and has a prop to stay open.