Just got a box of parts back from the body shop (still no truck) but what I thought was my voltage/amp regulator isn't like anything I have seen on line. The truck was converted to 12V and somewhere I have the wiring scribbled down so I know where this part was installed. It has one terminal labelled FLD and nothing on the other. That's right only two terminals. Number on the back is 0399B09. I popped of the lid and there is just a PC board inside. It has 273051141 Rev. H and also 94V-0 and CPC-DPC-E printed on it. The last number googles as a furnace PC? The other numbers don't come up. Anyone know what this is? Its a small rectangle box 2-3/4" x 1-3/4" with mounting tabs. thanks!