SC2400 PTO won't come on
I'm having problems with my 2010 CCY SC2400. The PTO is not coming on when I engage the switch. This started last Tuesday when the overnight low was -26f. When I got it started that afternoon, the temp was up to about 12f. Anyway, after starting it, and letting it run for a while to warm up, I engaged the PTO and it stalled. After doing that a few times, I jumpered the seat switch and found the PTO was not coming on at all, this was in the mid, both and rear positions. I've checked the fuse marked PTO, and it's good. I switched around the relays under the dash to see if one of them might be bad, but no joy there. Not sure if it's related but the PTO reverse switch doesn't light up when it's turned on, and hasn't since last winter, with a few exceptions.
So does anyone have any suggestions for what to try next? I'm getting frustrated with this thing, as it never seems to want to work when I want/need it to. I've got a half mile of road and 4 driveways to clear, I would prefer not to do it with the walk behind blower.
Thanks in advance,