i have this 2011 international ce300 with hydro brakes and the parking brake wont release the parking brake light does not show on the dash but a service parking brake light does i been trying to release it with the wabco tool box software and it wont release that way either under the control statues it shows parking brake travel switch as N/A and under switches it shows parking brake out of range i did go under misc output controls and selected supply valve and it release the parking brake for a second then it came back on there are no codes anyone have any ideas