Crown RR5715-40 , serial 1A475711. Sticks in side shift mode , multifunction handle switch sss is good ,tested voltage at access 4 , this unit has tilt ,reach an side shift.checked wiring to svs an svt solenoid valves an good. Seems to have 24 v negative when stuck in ss,but the handle switch is not closed yet it stays stuck in ss mode, switch the tilt an ss solenoid valves an no change. I suspect maybe access 4 may have an issue ,found nothing that makes it go out of ss, sometimes it's fine then you activate the sss switch to ss an it's stuck in ss mode.any ideals hit back an thanks.