T590 starts but shuts off after 30 seconds, no instrument panel lighting up

[Farmily]

Hello, Have a new to me 2014 Bobcat t590 that starts and then shuts off after about 30 seconds. Cannot get the instrument panel or the ‘green’ operate button on the left pillar to light up. Runs and wants to move but is ‘locked up’ so to speak. Has anyone encountered this? We’ve changed relays, checked the fuse panel for corrosion but haven’t come up with anything specific. Did find the main harness was zip tied and filled with dialytic grease (spelling?) and found that odd but didn’t seem to be the issue. Ideas on where to go from here? Thank you.

 

[Tazza]

You have checked the connections to the panel and the harness under the cab where it plugs into the harness to the cab?
The grease is meant to be there, i'm having issues with my S250, it has an electrical gremlin that the dash turns off, motor shuts off, then dash turns on. Switched power goes out when the panel does.
I'd check your power rails, see if you're getting switched power, there is a computer fuse, ensure you're getting power out of it.
If the dash won't light up, the computer may not be turning on unlocking things
Is the key turning the machine on? if so, the computer must be working, or partially working.