I have a 06 dodge ram 1500. I have trouble with the 4x4. It will not shift on the transfer case. I changed the axel actuator and changed out the electric shift motor. when I did the truck still will not shift. The new one is stuck in neutral and when I plug in the old one it's stuck in auto. motor try's to turn but the brake on the motor will not disengage. Is there a wiring diagram for this?