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Neutral saftey switch on 4l80 swap

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Old 08-30-2010, 02:31 PM
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Default Neutral saftey switch on 4l80 swap

Just swapped a 4l80 into a m6 car. How do I hook up wires from clutch pedal switches to a stock a4 shifter?
Old 08-31-2010, 09:43 PM
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I would like to know this also. I just swapped a a4 into my m car.
Old 08-31-2010, 10:15 PM
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Whats so hard to figure out?

With an M6 there is a switch on the floor under the clutch pedal, it has two wires. Tie into those two wires and run them under the carpet to the shifter, the factory shifter has a switch. It has wires coming off of it, two will connect in park and neutral. Use an ohm meter or what ever it takes to find what wires connect in park and neutral. Connect the wire you ran to these two wires.

IIRC they are green and purple.
Old 08-31-2010, 10:36 PM
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Yes the wires are green and purple with a white stripe. GM has used these colors for neutral safety switches since the 60's.

The switch on the right is the neutral safety switch for the clutch pedal.
The switch on the left is for the stock A4 shifter.
Take the wires that came off the clutch pedal switch and run them to the switch on the shifter.


Last edited by Jays_SSZ28; 12-22-2017 at 09:53 PM.
Old 09-01-2010, 01:09 PM
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Thanks

So none of the other wires need to be hooked up for the trans to operate properly?
Old 09-01-2010, 01:27 PM
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One pair of the other wires is for the rear hatch, a lockout so you can't open it while driving.
The other pair is for the reverse lights.
Old 09-01-2010, 01:41 PM
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Originally Posted by Jays_SSZ28
One pair of the other wires is for the rear hatch, a lockout so you can't open it while driving.
The other pair is for the reverse lights.

Thanks, which pair is for reverse lights? I could measure them with a voltmeter but if you know, that would be one less thing to do.
Old 09-01-2010, 02:43 PM
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Originally Posted by AFASTYZFR1
Thanks, which pair is for reverse lights? I could measure them with a voltmeter but if you know, that would be one less thing to do.
Brown and light green are reverse lights.
It's real easy the reverse light plug on the M6 has brown and light green wires.
The neutral safety switch at the pedal has a plug with green and purple w/white wires on it.
You just need to extend each to the shifter.

I have an A4 car and an M6 car, it's easy for me to check the two.
Old 09-01-2010, 06:19 PM
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Here is what I found on it https://ls1tech.com/forums/automatic...d-writeup.html



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