some strange headlight issue
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Champion
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some strange headlight issue
Has this ever happened to you? you have your headlights on, and then turn on your highbeams and all is fine, but then you go to switch back to lowbeams and all that come on are parking lights? Thats happened twice to me, does anyone have a clue as to what that may be. Im thinking a possible short in the headlight relay. **note, it also only happened when it was very humid (ie. fog).
All Star
Joined: Mar 2007
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From: South Carolina
RE: some strange headlight issue
I have exactly the same problem. I spent a whole day looking for the problem. It's very hard to find because the problem isn't always there. After testing all the wires I came to the conclusion that there is a bad ground connection somewhere. I think it is in the switch but I'm not sure. The reason I think it was the ground is because when the problem was there I had a larger ohm reading on the wire. Also if you connect the light to ground they are a little bit brighter then when it is just the switch. I'm waiting for something to completly fail before trying to fix it. That way the problem is easier to find.
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Champion
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RE: some strange headlight issue
ORIGINAL: ICEMAN_CH
I have exactly the same problem. I spent a whole day looking for the problem. It's very hard to find because the problem isn't always there. After testing all the wires I came to the conclusion that there is a bad ground connection somewhere. I think it is in the switch but I'm not sure. The reason I think it was the ground is because when the problem was there I had a larger ohm reading on the wire. Also if you connect the light to ground they are a little bit brighter then when it is just the switch. I'm waiting for something to completly fail before trying to fix it. That way the problem is easier to find.
I have exactly the same problem. I spent a whole day looking for the problem. It's very hard to find because the problem isn't always there. After testing all the wires I came to the conclusion that there is a bad ground connection somewhere. I think it is in the switch but I'm not sure. The reason I think it was the ground is because when the problem was there I had a larger ohm reading on the wire. Also if you connect the light to ground they are a little bit brighter then when it is just the switch. I'm waiting for something to completly fail before trying to fix it. That way the problem is easier to find.
All Star
Joined: Mar 2007
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From: South Carolina
RE: some strange headlight issue
If it's not the gound then it's something in the switch. I've thought about just replacing the switch but I hate doing the shotgun approach. Plus I beleive that the parking lights are on a differnt ground then your headlights. At least that what I rember when I was digging into but I could be wrong.
Record Breaker
Joined: Jan 2006
Posts: 1,056
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From: North Dakota
RE: some strange headlight issue
ORIGINAL: mtrider
multi-funtion switch on column dumping on you...see it every week at work
multi-funtion switch on column dumping on you...see it every week at work
exact same thing happened on my dakota and that's what was wrong.
Veteran
Joined: Jan 2007
Posts: 307
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From: Wisconsin
RE: some strange headlight issue
I realize this is an old post but I kind of have the same problem. Except my headlights dont come on at all. I turn on the truck the fog lights and parking lights work fine, but the headlights don't come on. The high beams work just not both of the headlights. Does anyone have any idea of it it's a bad switch or ground or what?
