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fog lights dont work... I searched

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Old 12-07-12, 12:13 PM
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fog lights dont work... I searched

The headlights work so the relay is working im pressing the button... nothing. Could both bulbs be burned? Any where else I can check or do?

Alex
Old 12-07-12, 01:01 PM
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Get your meter out and start tracing it back. Headlights have to be fully on and not in high beam for the foglights to come on.

Are they factory fog lights?

Factory fogs come out easily, just remove the 10mm bolt and they pivot and pop out.

Dale
Old 12-07-12, 02:12 PM
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They are OEm fog lights 93 touring... I turned the lights on... I checked for power and nothing is coming out of the red wire from the fog light unit... what other wires can i check?
Old 12-07-12, 07:43 PM
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do the switches usually go bad?
Old 12-07-12, 08:08 PM
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Get the shop manual and look at the circuit. There may be a relay for them in the front relay box, can't remember. The switches rarely go bad.

Dale
Old 12-07-12, 09:41 PM
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The headlight relay... Its the only thing I can think off... Anyone know if they are corroded they might make the fog lights not work? Or if the headlishts work then the relay is 100%
Old 12-07-12, 10:17 PM
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anyone knows where the headlight relay is located on the engine bay?
Old 12-08-12, 03:00 AM
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Check for power before and after switch.
Old 12-08-12, 04:21 PM
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The switch is working... im getting 12.9 to 13.4 volts at the red wire that connects inside the fog light but when i put the bulb in nothing.. I have 4 bulbs the 2 that originally were in the fog lights and 2 others i bought from advance auto parts
Old 12-08-12, 04:57 PM
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Could it be a bad ground wire how could I check.?
Old 12-08-12, 09:34 PM
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So... I had 11.68v straight from the battery without the key then I went to check the voltage coming from the positive/negative terminals right at the fog light enclosure and I got 10.6 v. Could this mean is a loose ground. Ill try to use the power source from the fog light enclosue and make my own ground wire straight from the wire and see if the bulb lights up. I tested all 4 bulbs and they all 4 work so something must of happened with the previous owner and then they all of a sudden must of stopped working but the bulbs did not burn. they did replace the radiator so they must of moved things around... can someone send me a picture of where the wiring goes and divideds into a y
Old 12-09-12, 10:37 AM
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Just wondering what is the resistance of the ground wire to the body of the car, if it is above a couple ohms you probably have a broken/ corroded wire.
Old 12-10-12, 12:28 PM
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Exterior Lights Wiring (1994 US FD)

FYI, see below.
Attached Thumbnails fog lights dont work... I searched-lights.jpg  
Old 12-11-12, 05:55 PM
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mine weren't working either and it turned out that the wires behind the bumper support were cut
Old 12-11-12, 10:05 PM
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they could be corroded, i had the same issue with the fog lights on my 929.
Relay and everything was fine, changed the bulbs and still nothing but i had power going all the way to were the plug on the bumper was but not from the fogs plug. Then i unplugged them and tried with lose wires to a bulb and it worked so i just replaced the wires.
Old 12-12-12, 06:58 PM
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I was told it was the center console switch!
Old 02-24-13, 06:57 AM
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YES it was the darn switch lever it was loose...
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