auto headlights - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 11-22-2007, 01:44 AM Thread Starter
 
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auto headlights

Can anyone tell me how to fix my headlights so they will not come on automatically on my 2007 Clasic? I pulled the DRL's out and put them away which stopped that problem but I am tired of having to turn the headlights off before I hit the starter. Any ideas? :thanks:
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post #2 of 5 (permalink) Old 11-22-2007, 01:57 AM
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Your DRL's should stay off with the park brake on. Do your lights stay on when your cranking it over?


2003 GMC 2500HD 4" straight exhaust, BD manifold, intake, Air Dog 150 lift pump, BD Supermax turbo, Suncoast Stage IV, Isspro EV2 gauges, EFI Live w/DSP 5 tuned by Xtreme FX Tuning.

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post #3 of 5 (permalink) Old 11-22-2007, 02:12 AM Thread Starter
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I should have given a bit more info so here it is;
I am an old guy and do not care to ride around with my headlights or DRL's on. I sorta prefer headlights for night and inclement weather but in Texas the sun is usually bright enough to see well in the daytime without the headlights being on. I am old fashioned in that respect so I took the DRL bulbs out. But the headlights want to come on by themselves and I don't like that so I would like to make them work like they used to, that is when I want or need them on I turn them on. Therefore I am seeking a fix for the factory auto on (always on) headlights.

Any help would surely be appreciated.

:thanks:

~Hoss
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post #4 of 5 (permalink) Old 11-23-2007, 12:39 AM
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I think I've found an answer for you.

You have to access the BCM under the knee bolster below the steering wheel. To remove the knee bolster, you have to loosen the cluster bezel first. That just pulls away from the dash, you just have to start at one bottom corner and work your way around. To remove the knee bolster, you remove the Pbrake handle (10mm bolt) and the two 7mm screws, then it pulls off.

The BCM is located under the steering column...its the silver box with three connectors running into it. Unplug the J3 (center) and J4 (right) plugs of the three. J3 should be brown, J4 is white.

This post explains the rest (my compliments to tsak for his fine writeup):

Disabling 2003+ Auto-headlights


He mentions that if you have auto-climate control, you must use a jumper wire.

It looks to me that if you have manual climate control, you can just take the white wire from J3 and move it to J4 in place of the black wire. Then tape off the black wire.
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post #5 of 5 (permalink) Old 11-23-2007, 01:50 AM Thread Starter
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:thanks:
I will sic my mechanic on this as soon as possible, since he is a pretty savey guy I expect a good bit of this will make sense to him.

I will let yall know what happens,
~Hoss
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