Neutral saftey friggin switch

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Old September 2nd, 2012, 10:03 AM
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Neutral saftey friggin switch

Where do the backup light wires come from? I would assume the rear harness, but i only have one light green wire, shouldnt there be two?!


sincerely, confused
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Old September 2nd, 2012, 10:27 AM
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Why would you need two insulated wires to run a light on a car?
The car's body and frame serve as ground path for most electrical needs...
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Old September 2nd, 2012, 10:29 AM
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Originally Posted by 805cut
Where do the backup light wires come from? I would assume the rear harness, but i only have one light green wire, shouldnt there be two?!


sincerely, confused
No, the light green wire goes to the trunk harness where it splits to feed each of the backup lights.
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Old September 2nd, 2012, 10:31 AM
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Originally Posted by Octania
Why would you need two insulated wires to run a light on a car?
The car's body and frame serve as ground path for most electrical needs...
Not sure what you mean, theres 4 prongs on the nss ignition and starter are two. The other two are for the back up lights, how come i only have one wire for my back up lights? (light green)
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Old September 2nd, 2012, 10:33 AM
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Originally Posted by Allan R
No, the light green wire goes to the trunk harness where it splits to feed each of the backup lights.
So then im just hooking up one wire? Or am i missing a wire? Sorry, im feeling a little bass ackwords today.. Whats the other prong for?

Last edited by 805cut; September 2nd, 2012 at 10:39 AM.
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Old September 2nd, 2012, 11:16 AM
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I just took the backup lights out of my car 2 days ago. They are both have light green wires and are fed by the trunk harness with a light green wire. There are 2 dark green wires that feed the tail lights/brake lights. Suggest you check the other lead to see if it relates to one of those. If they are side by side on your harness, that would be a logical next step.

If you need a pic of the trunk connection LMK and I'll take one for you.
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Old September 2nd, 2012, 12:32 PM
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Originally Posted by Allan R
I just took the backup lights out of my car 2 days ago. They are both have light green wires and are fed by the trunk harness with a light green wire. There are 2 dark green wires that feed the tail lights/brake lights. Suggest you check the other lead to see if it relates to one of those. If they are side by side on your harness, that would be a logical next step.

If you need a pic of the trunk connection LMK and I'll take one for you.
Got you. The lt green wire in my rear harness works both the backup lights, i guess im just confused as i saw this thread in the picture you see 2 green wires light green and dark green https://classicoldsmobile.com/forums...t-4-speed.html

And if it isent to much trouble, a picture would be great.
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Old September 10th, 2012, 07:53 PM
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Originally Posted by 805cut
And if it isent to much trouble, a picture would be great.
So sorry for the delay. I had some other things on the go, but I did get those pics of the connections for you.

Left side back up light connector (tan is fuel gage wire)


Right hand back up light connector (the silver is actually the tag light connector sprayed with body color)


The left side tail light connector has 2 brown and 1 yellow wire.
The right side tail light connector has 2 brown and 1 dark green connector.
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Old September 10th, 2012, 08:07 PM
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Ummmm... The neutral safety switch is a switch.
It opens and closes a connection between two terminals.
ONE of those terminals goes to the backup lights.
The OTHER terminal must, perforce, go to the power source that makes the backup lights glow.

One wire brings electrons INTO the switch, the other wire brings them OUT of the switch.

Sorry, one beer is the wrong number for me, I guess.

- Eric
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