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post #1 of 9 (permalink) Old 10-24-2013, 08:41 AM Thread Starter
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Wiring DRLs Seperately

anyone who can help me...Coby maybe?

I just got a set of aftermarket halo projector headlights from a friend of mine, they have the halos around both the low and high beam lights, as well as a set of LED's on the top of the headlight

when I installed my HID retrofit kit that I'm using now, I just pulled the DRL fuse because it would keep the HID's on full power all the time...well with this new set, I would love to wire the LED's to be my DRLs

currently, on my 08 LT sedan, the DRL's are on low-power lowbeams, I would love to remove them from that, and just wire up the LED's for DRL's

anyone know how this might be done? what am I getting myself into?

John
2008 Cobalt LT
SS springs and Stagg struts
Pioneer AVIC-X930BT GPS
Memphis 16-MCH600 "Baby Belle" hybrid amplifier
MB quart Premium 6.5" componant/premium tweeters front
MB quart Premium 5.25 componant/premium tweeters rear
Memphis PR-10" sub in factory sub box

miles and miles of dynamat extreme...
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post #2 of 9 (permalink) Old 10-24-2013, 08:49 AM
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Simple enough! Instead of returning the purple DRL resistive loop to low beam, run it to your LEDs. Since Your LEDs won't draw anything close to what bulbs do you should have close to B+ voltage at the LEDs.


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Last edited by Coby7; 10-24-2013 at 08:52 AM.
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post #3 of 9 (permalink) Old 10-24-2013, 08:54 AM Thread Starter
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that looks easier than I thought!

I'm assuming this loop is located at the underhood fuse box?

John
2008 Cobalt LT
SS springs and Stagg struts
Pioneer AVIC-X930BT GPS
Memphis 16-MCH600 "Baby Belle" hybrid amplifier
MB quart Premium 6.5" componant/premium tweeters front
MB quart Premium 5.25 componant/premium tweeters rear
Memphis PR-10" sub in factory sub box

miles and miles of dynamat extreme...
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post #4 of 9 (permalink) Old 10-24-2013, 08:59 AM
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Yes, but you can intercept it along the rad support near the drivers side headlamp assembly, that is where I cut into it to add my resistors when I upped the bulb power of my 9007.



Here you can see better where it "Y"s (UPPER righthand corner)


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Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

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Last edited by Coby7; 10-24-2013 at 09:22 AM.
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post #5 of 9 (permalink) Old 10-24-2013, 09:02 AM Thread Starter
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excellent!

as always Coby.... you are the man!

John
2008 Cobalt LT
SS springs and Stagg struts
Pioneer AVIC-X930BT GPS
Memphis 16-MCH600 "Baby Belle" hybrid amplifier
MB quart Premium 6.5" componant/premium tweeters front
MB quart Premium 5.25 componant/premium tweeters rear
Memphis PR-10" sub in factory sub box

miles and miles of dynamat extreme...
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post #6 of 9 (permalink) Old 10-24-2013, 09:29 AM
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But if you want to do it under the fuse block be my guess, but it's a lot more difficult. Again it is the purple wire. A2 DRL feed, F4 is where purple and yellow wire enter same pin in connector and corresponds to the above diagram.



---------- Post added at 01:06 PM ---------- Previous post was at 01:02 PM ----------

It might be a bit discoloured in the loom since this wire gets very hot.

---------- Post added at 01:21 PM ---------- Previous post was at 01:06 PM ----------

If you need any more help let me know!!! If you decide you want to keep your low beams on when you turn on your high beams let me know that is also an easy job.

---------- Post added at 01:29 PM ---------- Previous post was at 01:21 PM ----------

When you cut into the purple loop you will have a 50/50 chance on having the short piece of cable going to A2, which would be your prefered point for tapping. (Maximum B+) So skin the wire end coming from direction of the fuseblock and do a conductivity test to the DRL fuse socket. If you get a short you cut the right one.

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Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly

Last edited by Coby7; 10-24-2013 at 09:04 AM.
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post #7 of 9 (permalink) Old 10-24-2013, 09:45 AM Thread Starter
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I do like the idea of keeping the low beams on while high beams are on...how does that work?

John
2008 Cobalt LT
SS springs and Stagg struts
Pioneer AVIC-X930BT GPS
Memphis 16-MCH600 "Baby Belle" hybrid amplifier
MB quart Premium 6.5" componant/premium tweeters front
MB quart Premium 5.25 componant/premium tweeters rear
Memphis PR-10" sub in factory sub box

miles and miles of dynamat extreme...
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post #8 of 9 (permalink) Old 10-24-2013, 12:53 PM
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Just add a diode between pin "A2" and "C2" of connector "C2" of the underhood fuseblock Negative of diode at "C2") jumping the 2 relay controls coming from the BCM. You can do this under the underhood fuse block.



---------- Post added at 04:53 PM ---------- Previous post was at 03:11 PM ----------

You could also read this thread.

https://www.yourcobalt.com/forums/int...w-beams-5.html

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly

Last edited by Coby7; 10-24-2013 at 11:16 AM.
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post #9 of 9 (permalink) Old 10-24-2013, 06:06 PM
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What I did is use a fuse tap in the DRL fuse slot.

The top fuse just goes to a relay and the diode in the bottom fuse slot keeps the halos on with the low beams. The halos do help with lighting up street signs and does give off a slight glow above the cutoff for when you can't use your high beams. The pictures also explain the reason for the diode. During the daytime, DRL is active. At night, DRL is inactive, but power from the low beams flowing the other direction in the fuse slot. So the diode utilizes that power to keep the halos on at night and keeps the HIDs from coming on during the day. With this setup, the halos simply turn off with the high beams. Besides, no one's gonna see your halos with your high beams anyway.







Has to go in this way with the prongs bent so it'll work properly.
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