I would check all the fuses, battery, battery cable connections on both ends, if their all ok, the most likely going to be the engine control module. I would take it to the dealer or have them make a service call to give it a scan with their shop scanner to pull codes. friend of mine has a Kabota diesel with turbo,late model. he parked it a few yrs ago,went to start it the next day and had same identical problem as you, he got a scan, it was the module. warning..their not cheap!i have a utv rtv 900.I think its about a 2009. Theres no cranking or clicking, no head lights, no glow plug light when i turn the key. I put jumper cables to the battery with no effect or differance.