Paccar Wiring Diagrams - Nov 27, 2018 · 1 new thread Hot Thread (New) Hot Thread (No New) No New Posts Contains Posts by You Locked Thread. Search this Forum:. TMF 3 Hitch Raise Solenoid High Side Driver shorted to 12 volts. TMF 4 Hitch Raise Solenoid Failed Open or Shorted to Ground. TMF 5 Hitch Lower Solenoid Shorted to 12 volts.. DETROIT DIESEL Fault Codes DTC list you will find and download for free this page.