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90 Legacy "STOP LAMP" issue

Posted: Mon Nov 05, 2012 9:52 pm
by Baddog
So my girlfriends 90 Legacy brake lights don't work when you press the brake pedal. More often than not the "STOP LAMP" light comes on, on the dash.

What should I look at?

Brake switch? Any other suggestions?

Re: 90 Legacy "STOP LAMP" issue

Posted: Tue Nov 06, 2012 9:06 am
by topsecret888
I've never heard of this being an "issue". Just replace the bulb and move on. It's that simple. my 2 cents

Re: 90 Legacy "STOP LAMP" issue

Posted: Wed Nov 07, 2012 12:29 am
by Baddog
How could all 4 lights be out?

Re: 90 Legacy "STOP LAMP" issue

Posted: Wed Nov 07, 2012 5:37 pm
by SILINC3R
Stop lamp all ways comes on to let you know it is pressed i believe. Just like the ebrake light comes on when you have it pulled. I would check the swithc as you mentioned and that should do the trick. they are like 54 bucks at autozone if i remember correctly.

Re: 90 Legacy "STOP LAMP" issue

Posted: Wed Nov 07, 2012 8:34 pm
by Legacy777
The STOP lamp is there to let you know when the bulbs are burnt out. If all the bulbs don't work, I would suspect the wiring is in question. Does the normal rear, reverse, and turn signal lights work?

Here are the wiring diagrams for the 90 Legacy. You can trace out the wiring and see where exactly the stop lamp get's it's juice from, which may help.

http://www.main.experiencetherave.com/s ... agrams.zip

Re: 90 Legacy "STOP LAMP" issue

Posted: Thu Nov 08, 2012 7:46 pm
by Baddog
Reverse lights and all that work. But all 4 bulbs don't light up. First gens are a nightmare. Had 2 of them now. My 2nd gen at 201k has had almost no problems and gets beat harder than the first gen.

I will try the switch. Wiring is not something I like to touch and diagrams for wiring throw me off easily.

Everything works in the rear just not the brake lights.

Re: 90 Legacy "STOP LAMP" issue

Posted: Fri Nov 09, 2012 6:33 pm
by Legacy777
If everything but the brake lights work, yeah try replacing the brake switch.

Re: 90 Legacy "STOP LAMP" issue

Posted: Fri Nov 09, 2012 10:35 pm
by Baddog
Just replaced all the bulbs and the brake switch. Still no go.

Re: 90 Legacy "STOP LAMP" issue

Posted: Sat Nov 10, 2012 3:25 am
by Baddog
Should also mention the "3rd brake light" doesn't work either. The one in the window.

Re: 90 Legacy "STOP LAMP" issue

Posted: Sun Nov 11, 2012 7:09 am
by Baddog
Anyone? I know many of you just come here to browse or do simple mods and haven't wrenched on a car much.

I am open to suggestions. This is very frustrating.

Re: 90 Legacy "STOP LAMP" issue

Posted: Sun Nov 11, 2012 8:33 am
by topsecret888
The car being that old (over 20) I won't be surprised if it turned out to be some wiring issues. Electrical wires can deteriorate over time, and this is where it gets to be hard part. Trying to figure out which one is the culprit. Good luck!

Re: 90 Legacy "STOP LAMP" issue

Posted: Sun Nov 11, 2012 8:37 am
by James614
Sounds stupid, but I assume you already checked for blown fuses.

Other than that, wiring, as much as I'm sure you'd hate to hear it. I had an issue on my '93 where all the parking/brake lights went out without my knowledge. Replaced the fuse thinking nothing of it, and they went out again later that day. Turned out to be an occasional short at the wiring that connects to the side marker light on the front fender. Would've taken days to find, except I had a clue to start there as that side had been in a collision and repaired before.

Re: 90 Legacy "STOP LAMP" issue

Posted: Mon Nov 12, 2012 2:48 am
by Legacy777
If you look at page 31 of 82 of the diagram I posted, the only common thing between all three brake lights is the ground. The diagram shows two ground spots, one is right below where the trunk latch is, and the other is under the passenger seat carpet where the ABS controller bolts in (if you have one; if not the ground is still there in that area). The chances of both these grounds being bad is pretty slim, so it may be a wiring issue.

If you're not up to reading electrical diagrams, you may want to take it to a shop or a friend that can trace the wiring for you.