I need help! I bought a set of power seats from a 08 F250 Lariat. No heat, but seems like they have memory judging by the circuit board underneath the seats. I hooked the passenger side up to power, it works. I hook up the grey/red to + and blk/violet to ground and the drivers side won't work. There's a jillion wires on it, but I know I'm getting power because I went to cut one connector and it sparked and blew the fuse.

What do I do from here? I can't use my old seats anymore so I need this sucker workin! The circuit board looks fried, the people who removed the seat got one of the connector ports all bent out of shape and a capacitor is hanging off it. Do I need the circuit board to make this thing work? Do any other wires besides the + and - need to be hot? Is there any way to manually move the seat so that I can just slide it back? I'd be happy with that!

 

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The DSM (drivers seat module) controls the movement.
Maybe you can supply power to the motors and get it to move.
Click on the pic for larger size.

 

Ok but I can't feasibly hook up the DSM to my 2000 7.3. What do I need to do to get the seat motors working without that damned circuit board? I don't have any diagrams for the motor wiring either. I have them for non-memory but they might be different because of the sensors involved with memory seats?

 

From the factory wiring manual for '08
Wiring diagram for power seat (Left)
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Wiring diagram for memory seat

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Tap into the motor wires and apply power.
To move it apply 12 volts to either the yellow/white or the red/white wire and ground the other.
Reverse the connection to change direction.