RZR XP 4 1000 520287 brake correlation fault 2 October 17, 2015 520287 brake correlation fault 2. Anyone have any info on this fault? had it kick a few times in the last few weeks. Search around the forums and on the web, no hits. Any useful information anyone can pass on would be great. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related