Washer locked with 1 minute in cycle

My Maytag washer is locked and stuck with 1 minute to go in the cycle. It states “error code” on the touch screen LCD panel. I had a repair guy come over and state that it needs a control panel. Well, I cant afford to pay him $130 to walk in the door and another $780 to fix it. So, I want to try to do it myself. Which one would it be? I hear there are 3 in this machine. Anyone have any ideas to help? Thank you.

Here are your parts
Replacement parts for MAYTAG MAH7500AWW WASHER- HORIZONTAL AXIS | AppliancePartsPros.com

See the attachment for the tech sheet

And here is the service manual.
It does cover a number of units yours is tha last included manual.
16010061 Maytag Neptune Front Load Washer Service Manual - ApplianceDigest.com
You have to join the site to download the manual but it is free and this is a very good site for manuals and other info for the appliance repair DIYer.

Try to get into diagnostics so you can read the error code and go from there.
16025823 - MAH7500AWW.pdf (580.6 KB)