Need power window wiring diagram for a 51 cad coupe deville, showing layout connection points,wire gauge, color code and ect. Having problems suspect wiring, may have to rewire power windows. PROBLEM: If you try raising the window with both pump motor and cylinder operated at the same time, the window will not raise. however if you operate the motor first and while it's running then operate the cylinder, the window will raise! If anyone has had a similiar experience with this type of system we would appreciate any help. Joe