Touchpad and Steering Wheel Controls (Toyota Corolla 2001 european edition) - Page 2

electro · 04-30-2008, 06:20 AM

Quote: Originally Posted by nrgizerbunny

tricky one,

i've got an 05 corolla which has a similar set up. I had to connect ground to one wire and the +3.3v to the other 1 wire (its only a 3 wire system) and the sense to the final wire. Each time you press a switch you are going to get a different resistance coming down across the two ends. Just check to see if you have a ground there anywhere to start off with. If you haven't it doesn't matter which way you connect it up.

Thank you for your answer.

But I don't understand what you said to me. Could you please explain to me better?

Thank you!

nrgizerbunny · 05-04-2008, 05:43 AM

there is one wire that goes to the touchpad, this provides +12v, one wire is ground. Now in my case the remaining wire is used to sense the voltage drop. I think yours has two to sense the voltage drop. hope that makes sense.

electro · 05-04-2008, 07:19 AM

Quote: Originally Posted by nrgizerbunny

there is one wire that goes to the touchpad, this provides +12v, one wire is ground. Now in my case the remaining wire is used to sense the voltage drop. I think yours has two to sense the voltage drop. hope that makes sense.

OK I understand. But I have a couple of questions

First of all the wire from my head unit says +3.3V . Where should I connect it?

Second , There are 2 wires for control and the head unit has only one. What could i do for that?

nrgizerbunny · 05-12-2008, 05:44 AM

I would connect the +3.3v to the top rail on the touch pad. ground is one wire and the two sense wires must be the remaining two. I think you have got a facelift loom.