This PA has power seats, and the controls are near the floor on the side of the
seat. One control runs the seat backwards and forwards. One control runs the
front of the seat up and down. The other end of the same control runs the back
of the seat up and down. Another control pivots the seat back forwards and
backwards, etc. One set of controls for the driver and another set for the
On the driver seat, there is one motor that runs the front of the seat and one
that runs the back of the seat. When the control is pushed in the correct
direction, the motor or combination of motors will sound, but nothing moves. It
almost acts like the motors are jammed or in a conflict and pushing against one
another. There is a good deal of light grease on the threaded screw drive.
There is no foreign object that is an obstruction.
These seat controls are connected to a memory module, but that is not directly
I checked out the electrical schematic, but it doesn't help much. The correct
controls are going to the correct motors. The troubleshooting procedure
describes what to do to isolate a problem if the correct control does not work
the motor, but it doesn't mention what to do if the motor sounds off but
My only guess is to disconnect one of the two opposing motors, either to the
front or to the back, and then hit the control to run them both. That might
unlock some kind of locked condition. Then I'll reconnect.
Any other ideas, before I tear into it? It's kind of hard to work underneath
the driver's seat. Not much elbow room.