My Kawasaki Mule electro-hydraulic UTV dump bed began working intermittently. The problem was solved by replacing the two 5 pin 40/60 amp relays that are part of the wiring circuit installed with the dump bed kit. I bought generic relays that cost me about $8 each. The dealer price was over $25 each. It was very simple, transferred each wire, one at a time, from old to new relays, and everything was back in operation within about 15 minutes.
I assume you have some type of UTV because of the forum where you posted?