Rewire an AT traction button into MT? Use traction toggle as an accessory?
 

So I've done a quick google search of the site and couldn't find anything really for what I'm looking for besides this thread:

http://www.ft86club.com/forums/showthread.php?p=2506276

I'm redoing my trim to be a piano black gloss and need to buy the black traction control buttons (MT). I remembered that the AT's buttons have the "Snow / Sport" toggle and wondered if there's a way to rewire these for some other purpose?

Someone mentioned that the AT module has a different connector so you'd have to repin the harness in the MT? I'm looking to use this later on as either an accessory toggle for something, or maybe if I get ECUTek use it for map switching.

Really I just want to know what I'll need to do to A) install this properly in a MT and B) wire it up to be used for something later on.

Test it with a cheap LED strip. It is essentially a rocker switch so it would only send a signal while down, not a constant on/off style. I'm not sure on resistance lvls tho that's y I'd say test it with an LED strip. Cud prolly pick up a silver 1 cheap on eBay otherwise just useless buttons

Is a rocker switch similar to a momentary switch? On my Audi I had a "funk" button (one way, momentary radio button) that controlled my radar detector.

Damn nice idea! I'm going to install air cups over the winter, so it'd be awesome to have them go up and down using those buttons...

Thanks for the idea! I'll start digging into it and post my findings

^ Now that would be cool to see

I was thinking it would be cool to add buttons this way too. I bought a used AT set off someone, and was going to start looking at it soon. Just need to finish up my heated mirrors first.

my mistake. i meant momentary, not rocker

Hmmm if they're momentary that makes it more difficult.... Not sure what I'd use it for then. Though I'm still tempted to buy it for the extra $10 just to see if I want to use it for anything later.

It should be pretty easy to use a relay to lock out the signal when you push the button. After all, most TVs use a momentary switch to power on and off.


ETA: I dug around on this issue, and found a StackExchange question like yours. It gets a little hairy, but they list chips that would work for what you want, which is to push a momentary switch and have it toggle a constant signal (like TVs and laptops).
http://electronics.stackexchange.com...ntrol-a-toggle

Thanks for the link. I'll do some digging on the StackExchange forums and see what I can find. I'm thinking just a signal input to a relay should do the trick and eliminate the need for a digital processor. IE: press "snow" send signal to close relay for pin A, pressing again opens relay. Press "sport" closes relay for pin B, press again to open relay.

It would actually take more than one component to do this. You can lock the relay in an "ON" state with just a signal by running a cable between the "ON" output and the signal input. However, to turn it back off, you need a NAND gate to read if the relay is on, and the momentary switch is pressed. Also, you'll need an AND circuit to determine if you are allowed to turn the relay on (reading the NAND gate and momentary switch) This will allow the signal to be interrupted. You'll also need a monostable circuit right after the "snow" switch to prevent flip-flopping of the circuit.


All in all, it's probably a lot easier to just get the chip for around a nickel and play with some resistors to get it running. You might be able to sub in an Arduino or Raspberry Pi, and do it all in code. I can do more scratch pad diagrams later if you're still interested on building the electronics yourself.

I looked at the electrical wiring and checked the AT switch I bought. Here is the drawing of the connector.
Attachment 146046

Pin 2 has a LED flowing to Pin 3 for lighting
Pin 8 is ground, and All buttons tie low.
Pin 6 is Snow(AT only)
Pin 5 is VSC Off
Pin 4 is Sport(AT only)
Pin 1 is VSC Sport

It looks like it is a subaru connector, I'm going to try out 040-3 recepticals in it to see if they fit in the connector. Then any Tie Low button will work.

Now you're stretching my electrical knowledge. Quick explanation?