I have a Komatsu that has been sitting for a while. Just started working on it and it was working fine and then suddenly Mast lock function and exclamation point started flashing. Neutral light is flashing as well. After starting exclamation point flashes six times and just repeats. Lift will not move and mast lift functions are locked. Seat switch wiring seems to be fine and have physically checked wiring from seat switch to controller on firewall. I can manually unlock mast functions by powering solenoid. My next steps are to check the directional switch and power to the trans solenoid. Any help would greatly appreciated. Thanks