I have purchased from the Check Corporation previously. They have a fine product, but you will need to measure your seats and the hold down seams (for lack of a better description). They are not expensive.

CHECK CORPORATION
1394 PIEDMONT
TROY, MICHIGAN 48083
1-800-WARMS-UP
(1-800-927-6787)
LOCAL: 248-680-2323
FAX: 248-680-2326

Their web site is http://www.checkcorp.com/infoseat.htm

I have no affiliation except for using their product.

I followed that schematic that Paul (spasske) emailed me(thanks). Determined that both elements have to be bad. There are only two wires that go to the seat heater pads from the thermo/relay. Both seats are open circuits measuring at the black connector that connects to the seat pads. they all absolutely have to be bad. Anyone know where I can get cheap seat heat pads? IPD wants $90/seat for them. Stupid p/o must have left them on year round.

thanks - Nate

It seems odd that both seats would be open. The coil resisitence is actaually *very* low. I seem to remember in the neighborhood of 4 ohms for both heaters in series. you could be reading both. I would double check again before I went searching for new heaters.

Do you have single or dual output heaters? The duals have two heater elements in the seat and one in the backrest, singles have one element in the seat and one in the backrest. The two have different wiring. You have dual output if you have a square black relay under each seat. what year is the vehicle?

--Paul

Taking seats apart is pretty straighforward. It involves puncturing your fingers on sharp metal and subsequent cursing. Usually. Ok, it's not that hard. 4 bolts to pull your seat and a little prying, a little twistign of hog rings to get into the upholstery. You shouldn't need to get into the back adjusting knobs for what you need to do.
What you're going to want to do is visit the junkyards, and scope out decent passenger seats. The seat heater pad is the same, and of course that seat gets less wear. Some yards will not split up an interior no matter what, so ask first. You may have to buy a whole seat in a different color. Good practice. The heater pads just lay in the top of the foam- if the seat is trashed already you could just cut away the upholstery. Try to pull all the wires out when you take it, or at least cut them as long as possible. With luck you'll find good ones that don't have broken elements.

Or, you can buy replacements from IPD (or Volvo, if you're rich).
--
Rob Bareiss, New London CT ::: 86 244DL, 87 244DL, 88 744GLE, 91 244: 808K total