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Neutral Safety Switch - Reverse Lights on in R, D, 2, and 1

digi_d

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Hey all, hoping for a little guidance or ideas here on my 69 Super Bee with a 727. Problem is as described in the thread title - here's some additional detail:
-Car has 40K miles on it, I'm the second owner and have solid knowledge about what's been previously done
-NSS & transmission internals are original
-I finished rewiring the car last month (engine harness, dash, and forward. Rear harness comes in next week)
-This issue popped up after rewiring
-Car starts in P & N and (as expected) will not start in R, D, 2, or 1
-Shift linkage is a bit sloppy, all positions work as expected except shifting from shifting from N to D keeps the car in N. I have to go down to 1 then back up to D to engage D
-Reverse lights do not turn on in P or N

From what I can tell in previous posts culprits are typically rooster comb, the NSS, or shift linkage adjustment. Please correct me if wrong but...
-If the linkage was out, wouldn't I be unable to select the correct gear and/or have starting issues?
-If the NSS was bad, wouldn't it give me no reverse lights at all or reverse lights on in all gear selections?
-Given the car has it's original rooster comb and NSS, I can't see it being a length or parts mismatch issue

At a bit of a loss here for further troubleshooting - any other input is welcome!
 
I would test the switch. Eliminate all issue with wiring, disconnect the harness from the switch, and confirm the switch works correctly for each gear selected. Those outer pins will connect only when in R. The inner pin is only grounded when in P and N.

While you acknowledge the wiring has recently been fiddled with, and that may very well be where the problem lies, in the past, I've gotten myself all spun out on a wiring issue like this, because I failed to confirm the things like the switch were in proper working order.
 
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