I have and 01' Ls 190 that locked me out of the boom hydraulics. About 3 hours before using it I washed the machine. Once at the job site it ran for 15 min fine then locked me out of the hydraulics. It was still starting in run mode at that time but I switched the service switch on and now it will not start in run mode. All the lights go out except the glow plug light and the beeper comes on like it should but it just cranks and cranks. Switch it back to service and it starts just fine everytime. In other posts I have read about diode problems but not able to find it on my machine. I think I have checked all the obvious stuff, like battery cables, fuses, grounds, switches (door, seat and seatbelt) and what wires we were able to get to. Even took left side cover off and looked in that box over there. Any Ideas???