Head Light wiring

[Labrauer]

I hear there is a fuse on the head lights on a 48 Plymouth Coupe can anyone tell me where it is located? I just got finished wiring the car one wire at a time and now I have no head lights or horn. I never came across a fuse block anywhere that I know of. I have tail lights and blinkers all work fine but head lights will not come on nore will the horn work. Anyone out there can show me how they are wired? I have no power going to the block that in on the finder under the hood should have power there because that is where the front blinkers are hooked up to also. What's the deal?

Thanks in advance,

Larry:confused:

Edited October 11, 2011 by Labrauer

[Young Ed]

Should be pointing down off the back of the headlight switch.

[Labrauer]

I have had the light switch out and see nothing but the back of the switch. I will look again tomorrow.

Thanks for the responce Ed

[BobT-47P15]

Larry, an original headlight switch looks like this. The round tube comes

out by turning........the fuse is under it. Is it possible you don't have

an original style switch? That's the only fuse in a P15 system. They can,

however, be added if desired.

[Labrauer]

My head light switch doesn't look anything like that for sure. I guess it was changed out before I got the car so I don't know if I have a fuse or not on the car. In replacing the wires I never came accross any type of fuse the only thing I see is a three or four wire block under the hood on the finder next to the horns. The head light wires are hooked into this block I don't even know what it is called. When I rewired the car I did it by one wire at a time so I wouldn't get messed all up but I must of did something wrong somewhere even as carefull as I was. Just my luck. I guess I will go and trace down the wires from lights to switch.

Thanks for the responce Bob,

Larry

[littlemo]

If this is what you're describing to the right of your hood latch, no fuse here !!

[BobT-47P15]

Yeah....that thing Cass pictured is just a connector block for headlight

wiring. No fuse there.

Larry, can you take a pic of your headlite switch and post it?

Is your car still 6 volts?

[Labrauer]

Yeah....that thing Cass pictured is just a connector block for headlight

wiring. No fuse there.

Larry, can you take a pic of your headlite switch and post it?

Is your car still 6 volts?

Yes the pic that Cass took is just what I am talking about. My car is still 6 volt and I will take a pic of my switch tomorrow. shouldn't that block have power to it? I tested it today and got no power to any of the bolt studs on the block but the siginal lights work and they are hooked up to it to. It almost sounds like there is a power failer somewhere in the wiring to that block doesn't it. Tomorrow I will take all the wire looms off and trace the wires back to the switch maybe one of the wire connectors came loose or not crimped good enough.

Thanks for all the responces,

Larry

Edited October 12, 2011 by Labrauer

[Young Ed]

Check for power at your dimmer switch.

[greg g]

Also cycle the stomp switch a couple dozen times. The contacts can get corroded enough that they increase resistance and block flow. So lights will come on but not switch between high and low or low and high.

At the junction block, check and clean the conections there. The stud really isn't the conector its just for fastening the wire terminals together, but if your connectios are all new you probably have already checked this. also remember that each head lamp is individually grounded so assure the ground wire is doing its job, especialy at the sheet metal end.

And it you have't already done so a grounding strap from the firewall, to the engine or frame can go a long way toward solving a lot of electrical issues.

Remember 6V is all about electical flow, and resistance to flow is detrimental to performance.

Edited October 12, 2011 by greg g

[Labrauer]

http://www.facebook.com/#!/Lar18611?sk=photosHere is a pick of the light switch that i have in my 48 Plymouth with the key off only one wire is hot and with the key on all wires a hot. Traced down the wires this morning and found out why the horn wasn't working and it is fixed but still no headlights. Anybody got any ideas? Edited October 12, 2011 by Labrauer

[Labrauer]

Well Ed you hit it right on the nail with checking the dimmer switch. There was a wire that had come loose on it, hooked it up and had power to lights the only thing is now the lights will not change from bright to dim. I'll try what Greg suggested to do and if that will not work here comes the other question when I get a new dimmer switch does it have to be a 6 volt one or will a 12 volt work. Remember my car is still 6 volt positive ground. And one more thing if I add a 30 amp fuse will it go from the key switch to the light switch or on the power wire to the dimmer.

Thanks for all the responces and help,

Larry:o

Edited October 12, 2011 by Labrauer

[Young Ed]

Napa has one thats almost identical to the OEM one. Bolts in correctly only difference is it has 3 connections instead of 4 so the 2 that share on the old one have to be combined in one connection.

[greg g]

switches are generally voltage dumb as log as they are rated for the amps passing through.

Do you have a circuit tester light? Clip to ground then probe the connections out of the dimmer to see if it's sending current out from out terminals.

I don't think you can link faceplace pics here, and not everyone is a faceplant user.

[Labrauer]

Yes Greg I do have one of those test lights and have used it a lot on different things. I will test the dimmer switch tomorrow morning to see if it is putting out any voltage to the head lights.

Thanks for the responce,

Larry

[Labrauer]

Ok guys I got a new dimmer switch for the 48 plymouth and the lights come on now but only on bright. Push the dimmer switch and the lights go out. Anyone have any suggestions on what is wrong with the lower lights and why they go out when dimmer is hit?

Thanks for any responce,

Larry:confused:

[Dodgeb4ya]

Low beams could be burned out-otherwise improper wiring or bad new switch.

[Plymouthy Adams]

IF you wired the unit so that the power lead is where the high beam is normal then you will have only high beam and lo will never work..you may have to use a ohm meter to find the common wire..