Hey guys, i could use so help here...We have this Toyota 8FGU30 S/N# 14599. Seat light stays on as long as the red key in the dash but no trouble codes. The forks won't go down and we have no forward or backward tilt. Here is what we have done so far on the truck:
-CHECK SEAT SWITCH AND CONTINUITY : OK
-CHECK SEAT SWITCH WIRING. open circuit 1 to 5 volt: OK close circuit 0 volt: OK
-VERIFY CONTINUITY OF WIRING FROM SEAT SWITCH TO COMPUTER: OK
-CHECK ALL FUSES : OK
-REMOVE HYDRAULIC CONTROL VALVE AND CHECK SPOOLS, SPRING AND SWITCHES: OK

ANY IDEAS OF WHAT COMES NEXT???

THANKS IN ADVANCE FOR YOUR HELP