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914World.com _ 914World Garage _ No power to headlamps

Posted by: Flat VW Oct 1 2005, 04:56 PM

Hello to everyone,

I was out in the 74' car last evening, headlamps on all normal, when they suddenly went black...

I limped it home, "using" others for headlamps.

The lights motor up and down as they should and the running lights function normally.

I guess my main question is which relay drives power to the headlights?

Furthermore, if the relay is well, can I "check" the headlight switch without removing it from the dash?

TIA,

John

Posted by: McMark Oct 1 2005, 05:33 PM

You've checked your fuses, right? No highs and no lows?

Posted by: Flat VW Oct 1 2005, 05:34 PM

QUOTE (McMark @ Oct 1 2005, 03:33 PM)
You've checked your fuses, right? No highs and no lows?

Yes Mark no highs or lows, fuses normal--

John

Posted by: smooth_eddy Oct 1 2005, 05:46 PM

Seems like I saw a complete diagram of the lighting circuit at Pelicans site? I will see if I can find it again. Eddy

Posted by: Flat VW Oct 1 2005, 05:54 PM

Yeah SE, that current diagram is "here" too, I can't make sense of it in the four pieces it comes in though, I printing it now so I can literally "cut and paste" it.

Thanks,

John

Posted by: McMark Oct 1 2005, 05:57 PM

Sounds like the headlamp relay is the first place to check. Pull the fuse panel down and it's the little silver box. Check for power at the red/white wire. That one comes from the headlamp switch.

Attached image(s)

Posted by: Flat VW Oct 1 2005, 06:00 PM

QUOTE (McMark @ Oct 1 2005, 03:57 PM)
Sounds like the headlamp relay is the first place to check. Pull the fuse panel down and it's the little silver box. Check for power at the red/white wire. That one comes from the headlamp switch.

Yes already have it down, I thought it was the high/low beam selector, does it function as the "power relay" as well?

John

Posted by: Flat VW Oct 1 2005, 06:11 PM

Yes (+) power at the relay when the headlight switch is turned on. That highbeam switch has acted "flakey" in the past, if that is the "power relay" also it musta "gone south".

Is that an Autozone type item, or must it be euro type auto parts?

Thanks for your help

John

Posted by: bd1308 Oct 1 2005, 06:21 PM

it looks autozone-ish....but could not be......

looks like the 5pin relay i got at radioshack for my electric windshield washer conversion i did at 1am.....

b

Posted by: Flat VW Oct 1 2005, 06:21 PM

I'm gonna "rob one" out of my 75' non-runner knew there was a reason for keeping it besides the "great investment".

John

Posted by: Dr. Roger Oct 1 2005, 06:28 PM

I can tell you that if you put the 2 largest red wires together that attach to the headlight switch, the headlights will come on. =-)

Posted by: McMark Oct 1 2005, 07:06 PM

QUOTE (bd1308 @ Oct 1 2005, 04:21 PM)
it looks autozone-ish....but could not be......

Why would you even type that?

Posted by: 94teener Oct 1 2005, 07:14 PM

Pin 56 on the headlight switch may be burned out. It has a RD/WH wire attached to it.

Phil

Posted by: Flat VW Oct 1 2005, 07:14 PM

Peace has returned to the Valley.

Bad headlight relay, switched it out for the one out of the 75' car.

Thanks for you time Mark,et al.

Now I can go to the night autocross and watch and see if Greg Robbins (alias: gregrobbins) will continue to lead his class (well last week he was the only one in his class).

thanks again,

John

Posted by: McMark Oct 1 2005, 07:19 PM

Glad to help.