Engine Mower cuts out when engaging controls and blades

I have a 2005 Dixon Kodiak 50 ZTR. It'll start, but when you take off brake and try to move the controls it'll cut out. It'll move a little if you play with the controls, but ultimately it will cut out. It also cuts out when you engage the blades. I tried to trouble shoot, but can't find anything likely. I did see where it said "faulty interlock system" may be the culprit. It does this when you engage either side. I've only had the mower a few years, so I don't know if these have been changed or not.

Any help would be appreciated. TIA

Seat switch and associated wiring and/or relays would be a starting point.