Marker light dilemma
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Senior User
Joined: Sep 2010
Posts: 105
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From: Grand Rapids
Marker light dilemma
Well FTE I have a question for you. Here's the scenario first. When I turn my lights on there are the two selections one for just marker lights and one that turns the headlights on with the markers, but when my first click for JUST the marker lights is on I have the headlights too. Now when I did my grille conversion I noticed a wire or two snipped on at least one side. Could that be the culprit? Btw the P/O used the truck for plowing
Postmaster
Joined: Jan 2004
Posts: 3,207
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From: Kearney, Nebr
I start with the cut wires. The first click of should only be your marker lamps and the next one should be the headlamps.
The P/O probably wired up the plow lights in with the regular headlamps and markers but wired them wrong when he took the plow off.
The P/O probably wired up the plow lights in with the regular headlamps and markers but wired them wrong when he took the plow off.
Lead Driver
Joined: Oct 2003
Posts: 8,476
Likes: 37
From: Madison, WI
He probably wired the headlights in with the parking lights, and then wired his over-the-plow frog-eye headlights in to the full-out position of the switch. That way he could run the regular headlights with the plow removed, and the frog-eyes with the plow installed.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
Do you have a dimmer switch that works?
If it does, high and low beam are seperate wires.
If not, then he probably wired it wrong when the plow was removed.
The plow would have turn signal, marker, high and low beam headlight power wires and a ground wire for each light.
If it does, high and low beam are seperate wires.
If not, then he probably wired it wrong when the plow was removed.
The plow would have turn signal, marker, high and low beam headlight power wires and a ground wire for each light.
Post Fiend
Joined: Dec 2010
Posts: 10,121
Likes: 3
From: Orrville, Ohio
Pretty sure the DRL's on my truck turn on with the ignition and off when the switch is in the parking light position. I would have to verify for sure, but I know for sure they come on with the key unless the parking brake is set, and I am about 80% sure they turn off when I turn the parking lights on. Plus they are only about 70% of the brightness of the headlights. My guess is that the PO has the wires for the marker lights and the headlights wired together somehow. Probably did it when he took the plow setup off the truck.
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Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
I was talking low beam high beam dimmer switch.
If the headlights come on with the parking lights, either the low beam, high beam or both beams in the headlight would come on with the parking lights.
The dimmer switch would not affect the headlights.
If you can change from low beam to high beam, you have something else wrong.
If the headlights come on with the parking lights, either the low beam, high beam or both beams in the headlight would come on with the parking lights.
The dimmer switch would not affect the headlights.
If you can change from low beam to high beam, you have something else wrong.
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Post Fiend
Joined: Dec 2010
Posts: 10,121
Likes: 3
From: Orrville, Ohio
I checked the DRL's on my truck this afternoon and while they do switch on with the ignition (unless the parking brake is set) they DO NOT switch off when the marker lights are turned on. Maybe his truck DOES have DRL's? Do your headlights come on as soon as you start the truck?
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