Husqvarna GT2254 won't cut, stops randomly
I have a 2006 Husqvarna GT2254 (960250002 or Electrolux 279090) ride on. All of the sudden the blades shut off and then after a while the tractor shuts down. When I turn the key, the starter does nothing at all. It acts like the safety interlocks are preventing starting even when the safe conditions are being met. I can still jump start it for some reason and it will work (run and shift gears) for a while (still no blades) before shutting down randomly. I thought it was the seat safety switch (532 19 27-49) which seems to be a common problem, but replacing that did nothing. I checked the push button switch that depresses when the clutch is depressed (maybe interlock switch 532 17 61-38) and it seems to switch okay (continuity between one pair of prongs and not the other reverses when depressed). I don't know what to check next or what part to try replacing. Would a faulty blade engage (PTO) switch cause this behavior? If so, how would I check it electrically (it's got 9 prongs)? Are there other switches that interact with the interlocks? Thanks for any suggestions.