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Old 11-16-2009, 08:55 AM
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Custom frameless door electric window circuit

Hey guys I am looking to see if anyone has a clue how to make my power windows drop down a quarter inch when I open my doors and then back up when I close the doors just like the new Mustangs have been doing for years. Has anybody dissected a factory harness or found an after market solution?

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Old 11-17-2009, 03:18 PM
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I would try to find a Muatang wiring schematic and wiring diagram to see how Ford does it. A dealer may let you look at them there. If you know anyone at a Ford shop you might ask them for some direction on analyzing the wiring schematics. Take donuts.

While the harness would carry the signals, I'm doubt the harness carries or includes the parts or logic to do this.

Were I to do it, I might look at some of the new less expensive computer logic/bread board kits like Arduino. You might also research a book called Making Things Talk..... You can teach your car to act upon voice commands.

If that proves frustrating, it can be done with relay logic and limit switches.
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Old 11-17-2009, 05:23 PM
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Quote:
Originally Posted by Old Rotor Flap
.....If that proves frustrating, it can be done with relay logic and limit switches.
I work on a lot of old Lincolns ('61-68) that have the automatic back windows that roll down a few inches when the door is opened, and back up when the door is closed. Just to run this system on the two rear doors, it takes an extra ten switches and eight relays.

I'm thinking a custom microcontroller application would be easier, cheaper, and more reliable than relay logic and limit switches.

Just my $ 0.02...
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Old 11-17-2009, 06:15 PM
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Thanks Joe
I gave it about a minutes worth of little grey cells, but didn't get far enough along to think it could take that many relays and switches.
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Old 11-17-2009, 06:28 PM
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It wouldn't be to difficult to roll it all the way down...wire it through the courtesy light button and a relay to the down side of the window..then when the door closed a relay for the up side. Just an idea...haven't done it.
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Old 11-24-2009, 08:17 AM
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Hey thanks for the replies guys. Yeah basic logic with switches and relays was a definite but that can get ugly real fast. If I'm lucky, the travel sensors and micro controller is all one piece in the modern window motor. At least that is how I would design it and just have a door latch input to the controller on the motor. That would keep the rest of the car's wiring straight forward. I was just hoping somebody might have already done the dissecting of one of these systems. Or heard of an after market solution.
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