Hello,
Looking for guidance / instruction on reverse lamp lights not working. As far as I can tell in my wiring diagram I don't have the switch? On the diagram in my WSM it should be located in the engine bay? Or is the switch located inside the steering column. (Should mention it's column shifter).

Maybe even a photo of ford passenger  so I can get an idea of what to look for. Part numbers? 
Thanks.

With an automatic transmission, the ’55 Ford backup light switch is located on the steering column in the engine bay just above the steering box.  On the standard transmission cars, the switch is located by the shifter linkage at the transmission.  Here’s a picture of the switch on a ’55 Ford originally equipped with an automatic tranny.
  

Lorena, Texas (South of Waco)

What model year?

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Kultulz ,
It's a 1955 Lincoln Capri.

Probably should have asked this as well..
Is the neutral switch part of that mechanism?

Naturally, I have all but a 55 LINC PARTS MANUAL.

I think the PN is FDK 15827-B but cannot confirm.

Here are two LINC PARTS SOURCES -

PARTS - LINC-MERC | Lincoln Mercury Old Parts Store

PARTS - LINC | Lincoln Land

Let the FORUM know what you came up with.

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I don’t know if your Lincoln is anything like my ‘56 Ford Parklane but I’m pretty sure my reverse lights only work with the headlights on, in case you haven’t tried that.

MplsMike
'56 Parklane
Minneapolis, MN

I'm not sure if it's the same but on the 56 and 57's it's on the steering column under the dash.  Two of the wires are to allow it to start when in neutral and the other two are for the lamps when in reverse.  

Really wish I knew this information.
Found out a little too late.

Correct it is located on the steering column. I did my research and found this below.
Never assume as I've always started the car in neutral because that's how I thought it worked. Or did I.



Correct the "park lights" need to be on for the reverse lights to work and also be in reverse yay I have lights.

Really shit thing happened though, reverse was engaged whilst I was out of the car, window open I put my hand through the window and hit the starter button... Car Rolled and nearly pinned me up against the shelf as I hadn't engaged the hand brake all the way allowing the car to move although quite slowly my reaction was shock rather than action, only moved a meter or so but enough to cause the door to open slightly more ajar than normal so now I need to learn to adjust that as it got jammed up on the shelf.
At least I'm not hurt but F me I never would have expected the car to start in reverse or drive.

So I'm guessing I need to trace where these wires are connected now and figure out this neutral safety now.

If anyone knows where the cables lead to much appreciated.
And hopefully someone will learn from my mistake.

I'd start by pulling the switch and taking a look under it.  It may simply be shorting out underneath allowing it to start.  Unbolt it and see if it cranks.  If it does it's a wiring issue.  The switch setup is really quite simple.  Pics from a spare column that I have.