 '74 fog light relay, how does it work without grd? |
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| benalishhero |
 Sep 29 2009, 01:25 PM
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#1
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Member  Group: Members Posts: 313 Joined: 28-November 07 From: Portland, Maine Member No.: 8,384 Region Association: North East States  |
I'm at the end of some rewiring in my '74 2.0. What I can't figure out is how the fog relay is supposed to work without a ground. I have studied the diagram and as far as I can tell the relay isn't grounded.
Can anyone give me a clue? I need another set of eyes and brain for this one. Thx. Thomas |
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| 904svo |
Sep 29 2009, 05:09 PM
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#2
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904SVO Group: Members Posts: 1,124 Joined: 17-November 05 From: Woodstock,Georgia Member No.: 5,146 |
Look at the wiring diagram real close, it gets it ground from the left side low beam.
That's why the fog lights only work with the high beam on! When the low beams or on it puts 12 volts toward the relay when they are off it now a low resistance ground. |
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| SirAndy |
Sep 29 2009, 05:58 PM
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#3
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Resident German Group: Admin Posts: 42,205 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(904svo @ Sep 29 2009, 03:09 PM)  That's why the fog lights only work with the high beam on! You mean the other way round. They only work with the low beams on! If you turn on your high-beams, the fog-lights go out ... (IMG:style_emoticons/default/shades.gif) Andy |
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Posts in this topic
benalishhero '74 fog light relay Sep 29 2009, 01:25 PM
SirAndy
Can anyone give me a clue?
It's grounded thr... Sep 29 2009, 02:46 PM
benalishhero
Can anyone give me a clue?
It's grounded th... Sep 29 2009, 03:09 PM SirAndy
Thx for the reply. I tried that with no luck. I... Sep 29 2009, 03:50 PM benalishhero Ya, I just tested the switch- it's fine.......... Sep 29 2009, 04:09 PM 904svo
That's why the fog lights only work with the... Sep 29 2009, 09:22 PM benalishhero Still can't get them to work. My diagram contr... Sep 30 2009, 07:30 AM 904svo
Still can't get them to work. My diagram cont... Sep 30 2009, 09:39 AM benalishhero Solved. I had the headlight ground on the wrong co... Oct 3 2009, 06:24 PM |
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