Where are the 510 headlight relays

[73dime]

My passenger side headlight is out on my 73 510. When I turn on my brights though it turns on. So the only way I can drive at night without getting pulled over for a light out is drive with all four on. Is this a problem with my relay? I looked all over the car manuel and can't trace where the relays are. The wires all are correct because I compared them to someone elses 510 that had properly working headlights. Let me know, thanks

[ggzilla]

There is no relay for the headlights.

[SHAMUS'WAGON]

Did you already try changing out the headlight? Your low beam filiment in the light can burn out. Leaving you with just the high beam in the headlight. Take the headlight in question out of the car. Then put test leads on the terminals on the back of it. I don't think polarity matters, but move the test leads around on the terminals to see if you still have two different brightnesses of light. If the sealed beam tests O.K. it is an electrical issue. Check and wiggle test the fuse for that light. I had a similar issue a little while ago. It turned out to be in the fusebox. Good luck

[datzenmike]

There is a hi/low beam relay but that seems to be working. If you don't have a meter just swap the headlights. If the problem switches sides it's burnt out.

[ggzilla]

So the 1973 510 has a headlight high/low beam relay.

 

Did earlier 510s have any headlight relay?

[banzai510(hainz)]

there is a relay

It puts a double ground on the circut to light all the lights.

 

swap the light for lift to right or just ohm out the bulb. Lowbeams get used more so likly the element is bad

[73dime]

Thanks for your input guys, I didn't know there was a high and low beam filiment. That makes the most sense why things aren't adding up. I will either change out the light completely or take it out and try it on the other side to see if it is and electrical issue. Thanks again.

[NCRmtrsprts510]

Check the fuse!!!! replace it with a brand new 20amp one.. i almost started ripping out wires when i just replaced the fuse as a "f it" last resort, and wala it worked... but my problem was my driver hibeam would be on and my reg headlight was off when i hit the brights the hibeam got dimmer.. turned out the fuse looked like it had been burned halfway but not completely... and yes the headlights do have a relay..

[73dime]

Yeah, after playing around with it the old fuse eventually went and I replaced it with a new one but the horn still didn't work. I will try what has been said earlier and see if anything happens. That's a simple thing to check though that saves you a lot of time and trouble. Thanks

[NCRmtrsprts510]

horn? i thought we were talking about headlights? :blink:

[banzai510(hainz)]

if horn dont work its the realy or the fuse.

PS if horn fuse is bad you dont have brake lights

[hang_510]

So the 1973 510 has a headlight high/low beam relay.

 

Did earlier 510s have any headlight relay?

its located on the strut tower, across from the fuse box.

 

 

:no: not that one, the bigger one ;)

[73dime]

Oops, I got the two threads I posted mixed up. One was on the horn and the other on the headlight relay. That is good to know that the brake lights and horn are connected electrically.