Terex hml 42 wheel excavator

I have a terex hml 42 wheel excavator,I can't get any of the hydraulic functions to work except the wheels will turn, I checked power to the safety switch on the arm rest and it was good, and traced all wires to the fuse panel and all fuses were good,is there any solenoids that could keep functions from working serial number is 42M0407, machine type is 42M HML 42, thanks in advance