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low beams out, high beams work

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Old Nov 21, 2010 | 10:33 PM
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low beams out, high beams work

Low beams went out on each side. Guessing it's a fuse but not sure. 1992 W250. Anyone experience this?
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Old Nov 21, 2010 | 10:53 PM
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If the lamps didn't burn out then I would check the dimmer switch and the light switch. My Silver Stars burn out like clockwork every 6 to 9 months.
Jim
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Old Nov 21, 2010 | 10:57 PM
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Last time it happened to me dimmer switch or what they call a multifunction switch
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Old Nov 21, 2010 | 11:32 PM
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To remove the dimmer switch I assume I'll need to take the whole plastic panel off around it. Or is there a quicker way? Bought the truck with no owner's manual and I still have no repair manual so I'm working kind of blind.
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Old Nov 21, 2010 | 11:46 PM
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It happend to me too. turned out both low beams went out at exactly the same time.
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Old Nov 22, 2010 | 06:23 AM
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Fuse 15 is the Interior light fuse......you may have an interior light on? Maybe the halo ring around the key is not turning off? It's on a timer under the dash believe it or not. Timer goes bad...halo ring stays on all the time.

thanks to KD93
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Old Nov 22, 2010 | 06:33 AM
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Brandon I think you posted that in the wrong thread lol.
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Old Nov 22, 2010 | 07:08 AM
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But you're welcome anyway!
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Old Nov 22, 2010 | 09:13 AM
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Originally Posted by nfc90
To remove the dimmer switch I assume I'll need to take the whole plastic panel off around it. Or is there a quicker way? Bought the truck with no owner's manual and I still have no repair manual so I'm working kind of blind.
Yup, ... if it's like mine you'll need a torx driver, about #20 for the panels, and some tamper-proof bits to get the switch itself
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Old Nov 22, 2010 | 01:08 PM
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go hit the lights and see if they turn on, it could be the lamps. Mine did that and I got pulled over for havin a headlight out and i got out and hit it and it turned right on, then my other one went so i got a whole new headlight for like $15.
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Old Nov 24, 2010 | 07:56 PM
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Checked my fuses, they were fine. I was going to check the bulbs this morning when I turned on the light switch. Low and behold, my low beams worked. I'm guessing it's a short in the wiring, but for now, I'll let it be until the lights go out permanently.
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Old Nov 24, 2010 | 08:35 PM
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WOW i did post that in the wrong thread....i was wondering why it wasn't showing up in the "5 amp draw" thread
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Old Nov 24, 2010 | 10:51 PM
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Originally Posted by nfc90
Checked my fuses, they were fine. I was going to check the bulbs this morning when I turned on the light switch. Low and behold, my low beams worked. I'm guessing it's a short in the wiring, but for now, I'll let it be until the lights go out permanently.
Not a wise idea.
If they should go out when you're driving in pitch dark, and you're not expecting it, bad things can happen.

Mark.
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Old Nov 27, 2010 | 09:48 AM
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Originally Posted by nfc90
Checked my fuses, they were fine. I was going to check the bulbs this morning when I turned on the light switch. Low and behold, my low beams worked. I'm guessing it's a short in the wiring, but for now, I'll let it be until the lights go out permanently.
After replacing two "headlight switches" in the last 6 months and being caught without headlights far from home, I spent a few hours yesterday following Jim's relay installation guide. As others have reported it's not as bad as it looks and the headlights are probably 20% brighter. Many thanks to Jim on that one and would add this to the list of must do updates (like KDP fix).
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Old Nov 27, 2010 | 10:15 AM
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I would suspect the switch rather than a short. It is pretty common for a switch that is on its way out, to work intermittently.
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