DCD240 Form doesn't give me the option for that model.

I am insearch of a manual to help diagnose the park brake not releasing.
We have done the following, replace park brake switch and solenoid, as well and park brake pressure sensor/switch. We haven't had any luck getting it to release.

It appears by the screen that the computer is seeing the switching from park to no park as indicator changes. Brake does not release. Forward and reverse can not be shifted into.
Hydraulic functions all work.