Break lights on 48 plymouth

[Labrauer]

Is the two tail lights on a 48 plymouth suppost to light up when you apply the breaks or is the only stop light the one on the truck lid in the middle? Is there suppost to be three stop lights instead of that one? The tail lights light up when lights are turned on and they work as signal lights but not stop lights. Is something wired up wrong and if it is does anyone have a diagram of how they are suppost to be wired up. I would think that all three should work as break lights.

Thanks for the information as always,

Larry Brauer

braular@yahoo.com

[49 Dodge Dude]

I have a '49 Dodge which has a similar setup. The brake light is the one on the trunk lid while the fender-mounted lights are for turn signals and running lights.

[greg g]

Your vehicle is lighted as it was designed. With the likely addition of after market signals lights, as these were usually dealer installed options or aftermarket sourced.

[E.L Lane's 48]

My after market turn signal switch had a yellow wire hanging out of the pigtail not connected to any thing when I got the car. After pondering on the fact that they probably didn't put the wire in there for looks I decided to see what would happen when I put 6 volts to it. As I sort of expected it lit both rear turn signal filiments. I then tapped into the brake switch wire and tied to the yellow wire on the turn signal switch. Now I have three brake lights and the turn signals still function as they should.

[T120]

Can't argue with success

[E.L Lane's 48]

Can't argue with success

I know thats right! It doesn't happen to me very often,but when it does Watch out!

[55 Fargo]

Hi all, in order to encorporate, the tail lights into the mix, for brake lights. You will have to wire in a couple of relay switches, this allows the signals, and brake light circuits to work correctly.

To illustrate, if you have signal lights wired to the tail lights, with dual pin sockets, 1 for tail lights, 1 for signal lights, if you then wire in the stop lamp circuit to the signal lights, the brake lamp would flash every time you turned on the signals, and if you had the brake pedal circuit activated, not sure what would cancel out.

This circuit, can be wired in, and fabbed up, it's not too difficult, I know of a few that have done it, I will be wiring this into my signal/brake light circuits sometimes this winter.....Fred

[55 Fargo]

My after market turn signal switch had a yellow wire hanging out of the pigtail not connected to any thing when I got the car. After pondering on the fact that they probably didn't put the wire in there for looks I decided to see what would happen when I put 6 volts to it. As I sort of expected it lit both rear turn signal filiments. I then tapped into the brake switch wire and tied to the yellow wire on the turn signal switch. Now I have three brake lights and the turn signals still function as they should.

This would be correct' date=' as this aftermarket signal light switch would have the relay circuit built in to allow the seperation for the brake, and signal circuit to work in unison.

If you do not have this type of signal switch, such as the 3 wire switch, then relays must be added to allow both circuits to work in conjunction, clear as mud......LOL

Link to aftermarket signal light switch with 7 wire circuit to allow brake and signal light to work togther.

[url']http://automotive-hardware.com/universal-turn-signal-switch-p-292.html[/url]

Edited December 17, 2010 by Rockwood