I could not find tech info specific to your unit other than it does use an Adaptive Defrost Control board.
The below info should be close to yours as far as the compressor and defrost systems. The ice maker setup is probably different.
https://drive.google.com/drive/folde...EhtV0YxUTRrbTA
Look at 16010154 Maytag Side by Side Refrigerator
The wiring diagram closeset to yours is on Page 7-6
Sounds like it could be a bad temperature control thermostat.
The only thing that gives me doubt is the on/off every couple seconds.