All 4 heated seats not working on my '01 Deville?

[risho]

At first I thought it was just the front 2 heated seats not working now I got a chance to test out the rear and it seams like non of my heated seats are working, I can hear some sort of relay clicking when I use the front pass seats but for the front driver and both rear no or heat, I checked the fuses under the seats and all look good and tested with a test light, is there some sort of module I dont know of that controls the use of all the heated seats, I just find it very hard to believe all four elements went bad...?

[risho]

Any idea's/guesses??

I'm just lost can't find any codes other than the secondary air pump, and no engine compartment fuses/relays or the ones under the back seat are blown all tested with a test light...?

[Ranger]

I think you are going to need a FSM so you can start tracing the wiring schematic for a common point. Maybe a ground.

[turbojimmy]

Did they all fail at once, or are you just noticing now that they don't work?

Jim

[risho]

I think your right Ranger, and yes I just noticed there not working at all, the only thing that works in the rear is the lumbar, and the front pass seat makes a clicking relay noise when I turn it on the other 3 seats do not.