Neutral Safety Switch - Impala Tech
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post #1 of 2 (permalink) Old 07-31-2019, 11:46 AM Thread Starter
 
 
Join Date: Jul 2015
Location: Washington State
Posts: 21
 
Neutral Safety Switch

So I got a new ignition switch and while I was cleaning up the nest under the dash I found a wire that had been cut and left alone. Determined it was for the cigarette lighter. They just spliced into the ignition wire to power the lighter. Any way I was checking continuity between the neutral safety switch and the purple wire for the ignition, when I noticed that I get continuity when I touch anything metal in the car as well as any of the wires that arenít connected. I disconnected the nss and the continuity was gone. So then I made a jumper wire to simulate the switch and got the same results. I donít have the battery connected in the car. My question is this, is it possible the purple wire to the nss is exposed to bare metal somewhere causing me to get those readings or does the ignition switch cause it to ground out? Any help is greatly appreciated.


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post #2 of 2 (permalink) Old 08-02-2019, 02:33 PM
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Join Date: Oct 2018
Posts: 74
 
The neutral safety switch should just complete the 12v circuit from the purple wire to the ignition. So if the switch is not closed, you won't have power to your ignition switch, at least that's how the wiring diagram looks. On mine, since it is not driving yet, I just jumpered the two plug prong for the NS switch going into the console to complete the circuit so I could start the car.

So I think if you are getting continuity from the purple wire to ground then it is shorted out somewhere. Probably on the side where it goes to your NS switch since it only shows continuity when you jumper it.
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