Check engine and transmission message on and Icon

[Nxkharra]

Hi all. Please help.
We took the MH out of storage yesterday. It has not been started since November. It has been plugged in with electricity.
It started with no problem. The dash message shows "check engine" and "check transmission". The engine and transmission lights are on also.
I had no problem driving it to our RV park. About 20 minutes ride.
I have turn the ignition off and on few times.
I called Freightliner and they said this might be condensation and after driving and getting the engine to the operating temp might go away. They said no issue with driving with these messages on.
Any experience you could share is appreciated.
Planning to be on the road for the next month to west from VA.

[Nxkharra]

I checked all the fluids, and looked for any physical damage (rodent) this morning. All ok.

[garykk]

Disconnect the chassis battery for a few minutes, this might help reset if it's just an errant message.
Is there a rodent problem where it was parked?

[Nxkharra]

I did. Will start it in the morning and will report.
Thanks

[Nxkharra]

No improvement. I started loosing power so we stopped at a Freightliner place and staying in a hotel until they figure out the issue. Tomorrow might be the day.

[Nxkharra]

They have changed the accelerator pedal and looking for electrical issue....puzzled....

[Nxkharra]

$1,700 later and 4 days. Bad electrical wire to chassis. No parts just labor.

[garykk]

Wow!!, that's about 10-12 hours labor for a wire

[Nxkharra]

Yab. Their answer was there are miles and miles of wires in MHs. Duh.
What about the code?