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Old 10-01-2007, 10:33 AM   #1
emsmap
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Default Foglight relay location?

Where is the foglight relay location? Both my foglights went out at once and I checked the fuses and there ok. Any suggestions?
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Old 10-01-2007, 11:06 AM   #2
Cougar4
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I think it is located in one of the fuse boxes. Possibly the one under the hood.
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Old 10-01-2007, 11:28 AM   #3
emsmap
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thanks can anyone be more specific. I need my fogs back lol
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Old 10-01-2007, 12:22 PM   #4
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third from bottom.
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Old 10-01-2007, 12:38 PM   #5
emsmap
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OH WOW thank you so much! ill go home and check that. How do I know if it is a bad relay?
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Old 10-01-2007, 12:43 PM   #6
Paranoid Fabrications
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i usually just put my finger on it, and see if it makes a noise.

Shane
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Old 10-01-2007, 12:50 PM   #7
emsmap
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?? Im sorry could you explain that a little bit more.
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Old 10-01-2007, 12:53 PM   #8
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you will hear and feel the relay click as it turns on the lights. question, why do you think your relay is bad?
EDIT, i just reread what you posted, not sure how i didn't see that first
if you checked everything and it all looks good, yea, its most likely the relay.
shane
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Old 10-01-2007, 01:51 PM   #9
emsmap
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thanks again for all your help!
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Old 10-01-2007, 09:47 PM   #10
emsmap
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well man I checked the relay by switching another one in place of it and its fine I am really stumped on this. I have no clue why they are not working. Any more suggestions?
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Old 10-01-2007, 10:38 PM   #11
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are you getting powr to the fog light plugs?
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Old 10-02-2007, 12:06 PM   #12
emsmap
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I am not getting any power to the fogs
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Old 10-02-2007, 12:44 PM   #13
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Ok, you will have to start tracing the wires starting at the fuse box.
check the fuse
check to see if your switch is working
then check the wiring to the fog lights. i have seen cases of animals chewing on the wiring.
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Old 10-02-2007, 11:53 PM   #14
emsmap
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the switch doesn't even light up green anymore
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Old 10-03-2007, 12:18 PM   #15
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Quote:
Originally Posted by emsmap View Post
the switch doesn't even light up green anymore
As in the illumination light, the on/off indicator light or both?

Is the operation the same with the parking lights and/or brights on?

Do you have a multimeter? This would tell you whether it's the switch or harness (and which specific harness lead is shot). Let us know and I can tell you what to test.

Edit:

The switch illumination is on separate GND/+ circuits. So if both the illum. and the indicator lights are not working then the switch is the culprit.

If it's just the on/off indicator light that's not working (and the fogs are not lighting up) then the common lead is Pin 5, the switched ground. Test harness Pin 5 with the switch disconnected. It should be GND (compared to +12V) with the car started and only the low beams on and Open (0V compared to both GND and +12V) when the high beams are on. You may see a wandering voltage on the open lead due to the proximity of the filaments in the healdlights, disregard it and consider it open.

Then try unplugging the fog light switch and running a test lead from pin 3 on the harness to GND. Do this with the car started and just the low beams on. If the fogs don't switch on, then pull the fog relay and remove the test lead. Turn the car off and disconnect the battery. Then check continuity between all 4 relay receptacle leads and the harness Pin 3. If you can't find continuity to the harness pin 3 on any of these leads then you know that the wire from harness pin 3 to the relay receptacle is shot. If you do find cont. on one of the leads, take note of which one, this is your - control of the relay. In the relay receptacle, pick the other lead that is is oriented the same as the lead you previously noted (a vertical or horizontal slot, whichever it is). This is your + control of the relay. Reconnect the battery. start the car and turn the low beams on. Now verify that you're getting +12V at that lead (with the relay unplugged).

This is the pinout looking at the fog light harness:
3 1
4 _
5 _
6 2

Pin 6 is easy to identify -- on the switch back it is a plastic pin.

Next step is checking the power side. Let me know the answer to my first question.

Last edited by Mike Costin; 10-03-2007 at 01:13 PM.
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Old 10-07-2007, 08:06 PM   #16
mtntrekker30
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Thumbs up Relay Location

I have a 99 OBS and it took me for freaking ever to find the relay location. Look for a pink plug that goes in to a round relay. I found mine behind/near the drivers side kick panel.
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Old 10-08-2007, 03:20 PM   #17
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The relay is fine Im about to go crazy
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Old 10-16-2007, 07:05 PM   #18
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I know this is not a big help but I too have the exact problem. Both my fogs went out simultaneously on my MY03 (bugeye), and the green indicator light will not turn on. I checked my fuse and it appears to be fine. So from what i can read I guess I have to pop the switch out, and then check the pins? Am I on the right track, i'm sorry if im being ignorant but i've never been talented with electronics... thanks for any help
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Old 10-18-2007, 12:33 AM   #19
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Srry bout your problem man..im experiencing something similar. My Switch still lights up when i press it but still no fogs. I've checked all the fuses and they're good :-( Maybe someone can give us a definitive answer on how to fix this.
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Old 10-18-2007, 12:39 AM   #20
emsmap
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So three of us have the same problem Someone please help us out
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Old 10-18-2007, 05:44 PM   #21
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I suggest you all get a test light probe, or something to check for power at least, so you can see where voltage is getting to and where it isn't.

Power to the switch comes from fuse #7 that is located in the box mounted under the dash. There are small test holes on the top of the fuse to check for power on both sides of the fuse element so you can check the fuse condition without even pulling it out. If the fuse is good then check for power at the relay and see if you have power there. My info shows that power to the lights should be on a white/black wire on the relay.
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Old 10-18-2007, 10:40 PM   #22
emsmap
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thanks for your help cougar
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Old 10-18-2007, 11:25 PM   #23
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You're welcome. If you need further help let us know. The trouble should be pretty easy to find using a test light.
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Old 10-19-2007, 01:39 PM   #24
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Quote:
Originally Posted by emsmap View Post
So three of us have the same problem Someone please help us out
Count me in, I STILL have not figured this out but this thread is actually a big help!
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Old 10-22-2007, 01:23 PM   #25
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Ok on my particular car, I checked for power at the Fuse (#7) under the dash and I had 12V there.

Next is to check the relay I guess and maybe at the switch.

Any ideas for checking the switch and relay to MAKE SURE they are OK?
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