Hitachi EX120-2 swing issues

Still having trouble with the swing brake applying while slewing machine, checked the wiring to the brake solenoid (or at least what appears to be) and it looks good. Based what i have read on other forums this can be caused by a bad swing pressure sensor? Does any one know where the sensor is located, and what the swing brake logic is? Pressure should release the brake and it should set via spring pressure when pressure is removed, does the solenoid at the base of the boom control the...

Hitachi EX120-2 swing issues

Hitachi EX120-2 swing issues