Adding Heated Seats

[MNBoxster]

Hi,

@wpruitt - you only would need a DPDT Relay and these are common. Treat each switch setting as a separate circuit . Tap into the existing Cig. Ashtray lamp for switch illumination function and you're good to go...

Happy Motoring!... Jim'99

[JackG]

How do the factory switches work? Three positions (off, low, high), or a momentary action that toggles through settings? Do they have built-in indicator lights to show status?

I can help with the electrical wiring questions, but I don't have heated seats in mine (no need for them in SC), so I'm not familiar with the factory switches and their operation.

[dmcutter]

I had Check brand seat heaters installed in mine last December. The installer put the switches on the outside of the base of the power seats, unobtrusive and easy to reach, although I would have preferred OEM switches. The Deluxe (3 heat settings) cost me something like $450 installed, in case you aren't a do it yourselfer.

[wpruitt]

Jack,
I have the switches as I am accumulating parts to do the upgrade and I thought they were momentary switches that cycle thru off- low-high and have a corresponding led for low and high settings. I could very well be wrong. Maybe somebody that has a factory set can say how they operate.

Jim,
That would sure be an easy way to do it but will that work with momentary switches (if they are momentary)?

Warren

[JackG]

Originally Posted by wpruitt

Jack,
I have the switches as I am accumulating parts to do the upgrade and I thought they were momentary switches that cycle thru off- low-high and have a corresponding led for low and high settings. I could very well be wrong. Maybe somebody that has a factory set can say how they operate.

Jim,
That would sure be an easy way to do it but will that work with momentary switches (if they are momentary)?

Warren

Do the switches stop at each position, or do they just rock to an on position, then have a spring-loaded return to rest?

Even with momentary switches a relay can be wired to work. One set of contacts holds the current through the winding "on" when you release the button, but then you have to have a switch position that is normally closed that can open and interrupt the winding current to release the relay. You are essentially making a latching relay. It's not hard to wire, I can draw up a schematic if you like. The low-high will add a little twist. I'll need the specifics on the switch.

[donv]

Just keep rockin' forward to turn on and cycle heat level. Press rear to turn off. Indicators change color with off-low-high.

Originally Posted by JackG

Do the switches stop at each position, or do they just rock to an on position, then have a spring-loaded return to rest?