Note from DJ
DF I think that he has the BA10 Trans; Not the AX15 but OP will need to make that decision.
I’m posting two photos that may help him make a decision that show the difference between the cases.

 

Yea, I caught that, super that you figured that out. (and the used intake gasket on another thread, (although a vacuum leak should cause high idle))

Was thinking that if that is indeed the case, it being too short, and the connector on the right one being wrong for his plug, myself, I might make a spacer to fit in there. I might cut a piece of wooden dowel a little long, screw with it till it fits, then use that to find the length for some metal piece. Saw off a bolt or something. But that's just Me! I enjoy making things.(work)

Also, one might just plug it in to the connector and push the deal to test the switch without a meter. (has lights already!)

 

Wow DJ you hit the nail right on the head. Lol so excuse my limited knowledge of jeeps but yes DJ is correct, turns out I have the BA10. Using a test light and meter we have determined it's a bad switch. So I'll try and figure out how to fix it or buy a new one. I cleaned it like cruiser said but it still didn't work.

Thanks for all the help guys!

 

Note from DJ
Just for clarification are you checking the switch removed from the Trans if not please do so!
More clarification how long have you had the Jeep and have the reverse lights ever worked?
Also all my research says that the switch you have is the correct switch for that Trans.
Now if you can’t get that switch to work off the Trans. Take your old switch with you as a sample and explain to them at the parts counter that you have the Peugeot BA10/5 Manual Trans. The switch will need to be ordered most likely.

 

Note from DJ
In case you don’t get the switch working here are some places to shop.
O’Reilly Auto Parts
BWD - Backup Light Switch Part # S26360

NAPA Auto Parts
Back-Up Light Switch
PART # ECH NS5870

 

Awesome thanks! Those switches are about 30 bucks cheaper than the replacement one i found online

P.S. we were checking the switch out of the trans

 

Note from DJ
Another thing that I have been thinking about that you might check is this; Take something round like a Philips Screw Driver and stick it into the hole that the switch screws into.
Mark the depth of penetration and compare that to the depth of the threaded portion of your switch.
The measurement should be close to the same. This procedure is to make sure somebody in the past history of that Trans. May have left a part out.

 

Ok I'll give that a try. It was my uncle's jeep previously and he was the only owner. I'll ask him about what he has done with the trans.