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Old 12-21-2005, 08:57 PM   #31
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Actually I did not pull the junkyard seats. I did however get the wiring harness out in 1 piece. The diagram Geoff found made hooking them up a couple minute project.

Getting the leather off the old seats was easy with a couple of new razor blades. Pulling the covers on my seats was not bad, merely a little time and work. No special tools required.
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Old 12-21-2005, 09:15 PM   #32
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Quote:
Originally Posted by JimmyFloyd
Correct. I found the STS in my junkyard and grabbed the leather and heating elements out of them. Removing them wasn't too bad, only needed a utility knife and some patience. The easiest way, which bill did, is to remove the seats from the car first, get the leather, then get the wiring harness from under the carpet and use that. All the wires tie into the driver'* side main wiring harness. Then remove the elements, being careful not to cut them or the wires, and then finally the relay. I was able to get the wiring diagram for the 92-95 Sevilles so that made wiring it properly easy. With the parts, i then told Bill about it, who located some himself. Having more time and know how than I did at the time, he was able to install them as shown. It would be easy for you to do in your 91. I waited cause I was putting them in my 98 Lumina LTZ and didn't want to mess up the wiring (since I didn't get the harness) I currently have them installed in my lumina and they work well.

Maybeone weekend I can make the trip to toronto and go to a junkyard with some of you members and hang out. I'd need a place to stay since it is a little much for a day trip.
So Geoffrey- the STS wiring harness will tie right into the Bonne'*? or I'd have to run a new circuit? anyway you could e-mail me the diagram? If I have it I should be able to figure it out, thanks for the info. I will pick up the necessary materials the next time I go to the yard, and hopefully get it working.

Junkyard trips are great and so are meets. Hopefully that will get figured out this summer!
If in the meantime you need anything for the 93 let me know..the place i go to always seems to have a lot of parts, as well as I have meny cosmetic pieces
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Old 12-22-2005, 09:53 AM   #33
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Mike, I don't have the diagram with me. But the setup and wiring is like this:

4 heater elements in each seat plug into a relay that is mounted to the bottom of each seat. Each relay has 4 wires coming out.
1. Constant power (10amp fused)
2 Constant ground
3 Control wire to switch
4 Interlock wire to switch

The switch has 2 wires in and 4 wires out
IN:
1. Ignition switched power (10amp fused)
2. Constant ground
OUT: (4 wires, 2 for each seat)
1. Interlock wire output. (ignition power to keep relay for heaters from being able to work with key off)
2. Control wire that supplies off/hi/lo to the relay under the seat. (Hi = 210 ohms, Low = 300 ohms and off = nothing)

Needing constant power under each seat I used the 25amp constant line for the power seats and fused my 10amp off that. Ground is also located under each seat. Then I brought an ignition controlled 10amp fused wire into the console and picked up ground off body.

Add elements to seats and done.
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Old 12-22-2005, 11:44 AM   #34
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You've Got Diagrams.
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Old 12-22-2005, 01:19 PM   #35
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i found a SLS with heated seats in the yard today.....
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Old 12-22-2005, 01:25 PM   #36
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Thanks Bill
Both you and Geoff have been a big help with this. I got diagrams from him this morning.
But if you pulled the power off the power seats- that is most likly my best option too, as the wiring is very similar, And I even have 10 amp fuse holders- leftovers from another project of a friends car. Well- when I get the parts...I'll let you guys know how it works out!
thanks again
MIKE
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Old 12-22-2005, 01:31 PM   #37
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The only possible issue I saw was tapping the power from the power seat supply. However being a 25amp fused source to begin with and doubting the seats ever use the full 25amps. I'm ok with it.

I've had the heaters on HI and moved the seat a bit. No problems. it all works out to a happy warm experience.
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Old 12-22-2005, 01:45 PM   #38
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I thought of that right after left the post- and those 25amp fuses in my car are huge, with steel around them and everything. I'll have to start the mission after the parts are had!
thanks again
MIKE
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Old 12-22-2005, 02:45 PM   #39
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You did a great job on those seat heaters Bill.
You didn't tell me that you had turned on the heater, I thought the jalepeno'* were passing.
Got to find a permanent location for the cable linked control box.

Now you know you need a beer cooler for a 30 pack.
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Old 12-22-2005, 02:52 PM   #40
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I did the driver'* seat in the 93 a couple years ago. My quandary now is whether to do the passenger seat in that car, or the Driver'* seat in the 95 next. I'm thinking of being selfish.
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