I have a 2015 Roadmaster with some starter issues. I bought it last August with only 810 miles on it. Sitting just shy of 10K now. I started to throw the SPN 520262 FMI 4 code. This would come and go over the last few months. Then one day at work, it wouldn't start. I replaced the battery(sitting at 12.5 volts), and still nothing. Everything seems fine at first (all the lights come on), but when I hit the start button I hear a hollow click coming from under the seat. I can feel one of the relays trip. I've tried replacing the starter relay, and have even moved all of the relays, and still get the same issue. I've checked all of my grounds, I've even moved the power cable that runs along the brake lines, to even giving the starter a good whack with a rubber mallet.