Thanks,I believe this is [steer on demand] lift.They have two of these lifts.Power steer motor runs on both.Key on,seat down.Before for/rev selector has been engaged.One works fine.The other Im having trouble with no for/rev ,At times.for/rev contactor doesnt engage.Ive checked switches and Replaced control card.They own out good.I can allways get it working.By [Disconnecting current sensor @reconnecting it].Works everytime.I dont understand, How doing this.Gets it working.Im trying to get and Idea of whats happening.