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Tahoe & Suburban The power, space, and brutal towing ability make the Tahoe and its longer sibling, the Suburban, arguably the best full size SUV's on the market today.

2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

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  #1  
Old 10-23-2007, 10:30 PM
 
Join Date: Sep 2007
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Default Now my headlights won't work - 99 Tahoe

I'm about to do some troubleshooting, but I drove to the store and I had no headlights.

Start the car up, DRL come on. Turn it to the running light position, and it's working fine. Turn it to the on position, and the head lights go out! The running lights say lit. What gives? I ended up driving to the store with the running lights on and the DRL on.

What I have done over the last week was install a remote start. I tapped into the running lights, but not the head lights. When I took the dash face off, I did have problems with the plug for the light switch. I started trouble shooting there.

I rebuilt the switch. I tore it apart, cleaned the contacts, used di-electric grease on the contact points and put it back together.

This didn't help. As soon as I turn on the switch to the headlights on position, the DRL turn off and the headlights do not come on.

Under the dash is a relay, I pulled the relay and the DRL don't come on. That relay works 100%. I can't seem to find the relay for the headlights. I did not find a fuse for the headlights (by themselves), only for Lighting. Fuse is good, even tested it with a multimeter.

Tried to activate the high beams. They don't flicker on at all.

Ideas?

Hardwarz[/align]Click the image to open in full size.[/align]
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1999 Chevy Tahoe
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  #2  
Old 11-21-2007, 06:11 AM
 
Join Date: Nov 2007
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Default RE: Now my headlights won't work - 99 Tahoe

I have the same problem only with a '98 4x4. I have done all of the same checks including the purchase if a new switch $70 bucks next, hope they will take it back or swap . Same problem with the new switch.
Help ! all I have left to drive is a diesel and it does not get great milege and you know the price per gal.
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  #3  
Old 11-21-2007, 07:25 AM
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Default RE: Now my headlights won't work - 99 Tahoe

You'll have a fuse labeled HDLP, check it. I have burned a couple of thosefuses in our 99 Burb.
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  #4  
Old 11-21-2007, 09:15 AM
 
Join Date: Sep 2007
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Default RE: Now my headlights won't work - 99 Tahoe

On my 99 'ho, it turns out the problem was mine. I added in a T harness for the remote start. There's a bolt that holds the 2 parts of the harness together so they don't come apart. I had one side bolted good, the other side was not bolted that good. the bolt was actually keeping part of the harness apart enough so that the lights wouldn't work unless I played with the harness.

So, my problem was caused by me 100%.

My suggestion... check the ignition harness under your dash. Make sure it's not loose as this would cause the same problem.

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  #5  
Old 11-21-2007, 12:34 PM
 
Join Date: Nov 2007
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Default RE: Now my headlights won't work - 99 Tahoe

Hey, Hardwarz, This is right from a friend that had the exact problem and he found it in the steering column at the dimmer switch. He pulled the covers off from around the tilt and said it was in the plug-in for the dimmerswitch and it was a little of a bear to get to. The cruise control wires are next to it and are 24ga. at least. The wires that controlled the bright and dims had pulled loose or broken due to the nine years of flexing. I'll have to try when I get home to see if this is my problem. This guy is pretty honest, I believe I can trust him.Good luck!!!!
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  #6  
Old 10-06-2009, 11:52 AM
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Red face Dimmer switch issue for me

I Have 97 tahoe that had same symptoms. Came back to life by simply operating dimmer switch. Must have been in limbo somehow. Didn't have to take apart steering column.
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  #7  
Old 12-27-2009, 10:30 PM
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I'm haveing the same problem with my 99 tahoe, i have canged the switch and relay, that didnt do anything. i'm gonna try the wires around the dimmer next. i will let everyone know how it turns out.
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Old 12-27-2009, 10:30 PM
 
 
 
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1999, 98, chevrolet, chevy, daytime, drl, equinox, headlights, lights, relay, running, suburban, tahoe, turn, work


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