Neutral safety switch location and testing?

ANONYMOUS

MEMBER
2009 CHEVROLET IMPALA
80 MILES

Where is the neutral safety switch located?

Friday, February 8th, 2013 AT 7:50 PM

6 Replies

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

Hey,

the neutral safety switch is located inside of the transmission right under the gear selector arm here is a wiring diagram so you can test the wiring to help fix the problem with the location of the internal mode switch as they call it below.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the diagrams (Below). Please let us know what you find.

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Thursday, December 29th, 2016 AT 6:19 PM

LYNDA MORRISON WHITE

MEMBER
2 POSTS
2005 CHEVROLET IMPALA
3.8L
6 CYL
FWD
AUTOMATIC
200,000 MILES

Mechanic told me I needed new NSS for no-start issue. Can the NSS be bypassed?

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Wednesday, March 17th, 2021 AT 4:06 PM (Merged)

WRENCHTECH

MECHANIC
20,761 POSTS

No, you cannot bypass it. It controls a lot more than just the starter circuit. It tells the computer what gear it is in so the computer can make decisions.

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Wednesday, March 17th, 2021 AT 4:06 PM (Merged)

LYNDA MORRISON WHITE

MEMBER
2 POSTS

Thank you.

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Wednesday, March 17th, 2021 AT 4:06 PM (Merged)

STEVEN64.GRAINGER

MEMBER
2 POSTS
2001 CHEVROLET IMPALA
6 CYL
FWD
AUTOMATIC
160,000 MILES

Where is the neutral safety switch on a 2001 chevrolet impala located? I was told inside the transmission. That the transmission needs to come out to replace it. I'm about 99% sure thats incorrect. So "Help".