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Discussion Starter #1 (Edited)
I have a pair of heated seats from a 2011 R1200RT that I am adding to my RT.

I have a question regarding wiring. The front seat is easy enough. It has 2 wires (purple and purple/black stripe) and this is a DC circuit. So I will use a relay to trip a positive wire from the battery into a PWM (Pulse width modulation) unit to control it (instead of using resistors). Here I am assumign that the stock control has a few settings which include full power and lower setting(s) that use resistors.

The rear seat has 4 wires. White/green; White/blue; White/yellow and brown. I am guessing that the seat may have resistors built in and the stock switch has 2 or 3 settings where is just runs B+ to the white wires and lets the seat control the temp with its resistors.

Is this right? If so, I can either find a 3 way switch or find the wire that is the high setting and use another PWM unit to control it.

Someone please help. Thanks.


EDIT: Oh man, now I am really confused. I just found a switch on the right side of the seat to control either low or high heat settings.

So maybe I have 2 wires to supply positive and 2 return wired for an LED on/off indicator?

Does anyoen knwo how these are wired?

Thanks.
 

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I don't know how it is wired but the driver seat is controlled by a switch by the throttle and the rear is controlled by the switch you discovered on the seat.
Good Luck
 

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If the seats came with the OEM wires to plug into the bikes wiring harness I would just plug the rear seat into the plug on the left hand side under the seat just to the rear of the cross bar. The front seat should plug into another just in front of the cross bar also on the left side and then you would need to get the right side switch set for the handle bar that has the switch's on it for drivers heated seat and grips. This should make for a "factory" install. All this is based on looking under the seat of my 07 RT. Hope it helps.
 

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Discussion Starter #4
Thanks,

I am retrofittign the bike, so I need to build a harness to hok this up, so I need to know what each individual wire does.

Does anyone know?
 

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I'm not sure what you currently have but I'm guessing...
1 - BMW motorcycle without the heated seat option and
2 - A pair of BMW heated seats.

I'm also assuming that the bike has the wiring already in place but no handle bar switch for the front seat. The rear seat has it's own rocker switch with a low, off, and high setting.

I wired a heated Corbin seat to the existing wiring using the BMW plug. It does not invate into the bike wiring and allows me to switch between the stock seat and the Corbin.

The procedure I used is here .

tsp
Blog: www.swriding.blogspot.com
 

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Discussion Starter #6
Thanks,

Yes, I have a bike that did not come with the heated seat option and I have a pair of factory heated seats. I found that the factory wiring is all there as you said.

The link on your blog does not work.

http://swriding.blogspot.com/2011/1.../11/how-to-wire-aftermarket-seat-to-bmw.html


Hopz was kind enough to supply a wiring diagram to me (thanks again). Now everythign is clear.

It looks like all that I need are the two extensions that connect to the seats and a 3 way switch that I can splice into the right handlebar controller (or pay over $300 for the factory switch).
 

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Before spending anything on a made-up wiring system- I'd check the boneyards for The right hand switch gear.
 

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Discussion Starter #8 (Edited)
hopz said:
Before spending anything on a made-up wiring system- I'd check the boneyards for The right hand switch gear.
Sir,

Thank you again for the wiring diagram.

I'll check the second hand stuff.

Thanks,

Chris
 

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I just tried both links and they worked on my computer. You might try typing in the entire url in your browser "http://swriding.blogspot.com/"

I posted a picture of the cable that comes from the seat to the plug under the seat.

tsp
Blog: www.swriding.blogspot.com


twkBMW said:
Thanks,

Yes, I have a bike that did not come with the heated seat option and I have a pair of factory heated seats. I found that the factory wiring is all there as you said.

The link on your blog does not work.

http://swriding.blogspot.com/2011/1.../11/how-to-wire-aftermarket-seat-to-bmw.html


Hopz was kind enough to supply a wiring diagram to me (thanks again). Now everythign is clear.

It looks like all that I need are the two extensions that connect to the seats and a 3 way switch that I can splice into the right handlebar controller (or pay over $300 for the factory switch).
 
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