Headlight issues - bad ground?
Thread Starter
Joined: Jul 2005
Posts: 364
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From: Ft. Lauderdale, FL
Headlight issues - bad ground? I've come across a problem lately, I thought my two low beams were blown because they would never come on. So I bought two new bulbs, and now all lights come on including the high beams at the same time.
I've searched and concluded it could be a bad ground, but I don't know where the ground is. I know it's at the radiator support, but I can't find it?
Anyways, suppose it is a bad ground? What should I do?
I've searched and concluded it could be a bad ground, but I don't know where the ground is. I know it's at the radiator support, but I can't find it?
Anyways, suppose it is a bad ground? What should I do?
The high and low beams are switched by whats called a dimmer switch, which I believe is located under your steering column. What that switch does is take a power signal from your headlight relay, and send it either to the high beams or low beams. From there there are 2 sets of wires for the high and low beams, low is a brown color and high is green. Each headlight has its own ground, which goes to the radiator support. You can find each of these by looking just behind the headlight assembly on either side, it should just be set in with a screw.
I would guess that if your low and high beams come on together, that your dimmer switch is bad.
I would guess that if your low and high beams come on together, that your dimmer switch is bad.
Joined: Nov 2003
Posts: 11,328
Likes: 344
From: Jacksonville, FL (originally from Toronto Canada)
The high and low beams are switched by whats called a dimmer switch, which I believe is located under your steering column. What that switch does is take a power signal from your headlight relay, and send it either to the high beams or low beams. From there there are 2 sets of wires for the high and low beams, low is a brown color and high is green. Each headlight has its own ground, which goes to the radiator support. You can find each of these by looking just behind the headlight assembly on either side, it should just be set in with a screw.
Firebirds always run the lowbeams when the highbeams are on. Unlike Camaros, the lowbeams are on whenever the headlights are on and only the highbeams switch on and off from the dimmer switch.
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Joined: Nov 2003
Posts: 11,328
Likes: 344
From: Jacksonville, FL (originally from Toronto Canada)
If the highbeams go on/off and the lowbeams stay on when you use the dimmer switch then you don't have a problem - the system is working as it should.
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