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Old 11-11-2004   #1 (permalink)
hnhssoccerplaya is offline Apprentice

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Default Rewiring foglights to turn on w/ out headlights

Has anyone else rewired your fog lights so that you can turn them on with your driving lights and don't have to have the headlights on. I have been thinking about doing it for awhile now but i just came across instructions that tell exactly how to do it. But i wanted to make sure this would work. I plan on doing it saturday unless someone says that it won't work . Here are the instructions i found...........


First you will need some parts:
1) A Bosch 30-40amp relay (5-pole)
2) About 3 feet of red 10-12gauge wire
3) 10 speaker terminals 10 and 18 gauge (local electrical shop,or stereo shop)
4) Also 18 gauge wire two or three different colors (black,yellow,grey)
5) One 10-12 gauge fuse holder (ato style)
6) One 30 amp fuse (ato style plastic blade type green)
7) Solder and soldering gun
8) Screw driver (small flat blade)
9) 8mm socket or 5/16" socket and ratchet
10) 18 gauge butt connectors(3 or 4), and one 10 gauge butt connector
11) two or three 18 gauge ring terminal and self tapping screws
12) Volt meter or 12V test light
Details:
First remove the head light switch, this is easily done by taking a small flat screwdriver, and with slight pressure on the switch(outward) push locking tabs on the left side of switch then the switch should just slide out at this point.
Note the colors of the wires on the small two pin plug, should be a 18 gauge light blue with black trace, and a 14gauge light brown with orange trace.
Ok now remove lower dash cover(under steering column) by removing the three 8mm bolts underneath the cover. After bolts are removed lightly pull cover straight outward toward the seat back.CAUTION do not pull straight up or down , or you will break all the mounting clips off and can not be repaired.
Now locate the 10 gauge yellow wire at the ignition switch harness, verify this is a constant power source with a test light, or volt meter. Now strip about a 1/2 inch of the insulation off of this wire to expose the copper wrappings. Now take the 10 gauge fuse holder and strip about 1inch of of this, and wrap this wire around the exposed yellow wire tightly and solder and tape well, connect 10 gauge red wire to fuse holder with butt connector.
Now take the black 18 gauge wire and put a ring terminal on it and connect to a good ground (preferably a metal surface)
Run these wires up to the location of the head light switch.
Now remember those colors we talked about earlier, now take the light blue with black trace wire and cut it and connect the side that goes from the switch to the dark brown wire of the headlight switch plug.
Now take the light brown with orange and cut it. Connect the 18 gauge grey wire to the side going to the switch, then connect the yellow 18 gauge to the other side of the light brown /orange wire.
Now you should have 4 wires up by the headlight switch compartment. 10 gauge red, 18 gauge black, 18 gauge grey, 18 gauge yellow
Take the relay now NOTE that there are numbers and letters on the bottom of it
should be 85, 86, 87, 87a, 30
Put the speaker terminal (female spade) on all of the wires at this point, make sure to make all the wires the same length, this will make the install a lot cleaner.
Now after this has been done take the 10 gauge red wire and connect it to terminal 30 on the relay.
Take the yellow 18 gauge and connect it to terminal 87 of the relay
Take the 18 gauge grey wire and connect it to terminal 86 of the relay
Take the 18 gauge black wire and connect it to terminal 85 of relay
Terminal 87a will not be used in this application
Wrap relay and harness with tape to protect
Tuck relay and harness neatly behind headlight switch and reinstall switch assembly.
Insert 30 amp fuse and test, if all is ok proceed to put car back together at this point.
NOTE: with this setup you will be able to run your fog lights with only the parking light on!!! Now That's COOL!!!






Bolinger
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Old 11-11-2004   #2 (permalink)
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I used the instructions off the Corral website and they worked great. Yours sound a little more complex but very similar.
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Old 11-11-2004   #3 (permalink)
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Sweet I was just thinking about this the other day thankss for posting the instructions OzPony

Drew
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Maybe even a t3/t4 turbo...? hmm
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Old 11-11-2004   #4 (permalink)
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we have instructions right here on our site.

http://www.allfordmustangs.com/Detailed/40.shtml
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Old 11-12-2004   #5 (permalink)
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Quote:
Originally Posted by STONECOLD
we have instructions right here on our site.

http://www.allfordmustangs.com/Detailed/40.shtml
I knew that ! Someone kick me
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Old 11-12-2004   #6 (permalink)
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If you look inside the console wiring harness, your see the plug for the convertable top. You still have the plug even if you have a coupe. All you need to do is very simply hook into the (ignition) switched power for the vert top. the fog lights come on any time the key it on.
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Old 11-12-2004   #7 (permalink)
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Fog Light fix for the Foxes with pictures

http://www.corral.net/tech/maintenance/foglights.html

Did my 88,about 2 hrs and 40 bucks,Pretty simple to do.
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Old 11-12-2004   #8 (permalink)
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Hey guys, I was refering to the SN95 body Mustang. Sorry for any confusion.
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Old 11-12-2004   #9 (permalink)
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Nw that i know it works and other ppl are doing it i'm going to do it for sure. If anyone else plans on doing it make sure you get the instructions for your car, i noticed a couple of ppl had 94 or 95's.
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