DRL Lighting question - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Sinister_SS · 09-23-2014, 09:14 AM

First I've worked on cars my whole life but I'm a newbie to the 5th Gen Camaro world and I hope this post is in the correct location.
My question is I have the harness in my 2010 2SS to make my DRL's stay on all the time but I would like to put a switch going to them so that I can manualy control them like fog lights. I know they make a harness for this but I was wondering why I couldnt just wire the DRL's Ground to a switch and be able to just kill the ground circuit? Ive read in another post that if you mess with the power going to the DRL's that it might could back feed into the pcm don't know how accurate that is but my thoughts are on killing the ground is it would just be the same as if the bulbs had blown. Thanks for any information

Sir Nuke · 09-23-2014, 01:05 PM

think about it......doing what you are proposing is really no different than having the bulbs going out.

Sinister_SS · 09-23-2014, 01:45 PM

Thats what I was thinking just wanted to make sure that I wasn't going to fry one of my modules

Joe@NightOwlLEDs · 09-23-2014, 01:52 PM

There are two ground wires in the DRL harness. I'm not certain if one is for both side markers, and the other one for both DRLs, or if they are split side-to-side. But interrupting the ground would not be harmful. Probably what you are referring to is back-feeding the BCM by giving the DRL 12V when the BCM is telling them to be off.

There are two ground wires, two side-marker wires, and two DRL wires. The ZL1 adds two more wires for both fogs.

09-23-2014, 09:14 AM	#1
Sinister_SS Drives: 2010 SS Camaro Join Date: Aug 2014 Location: United States Posts: 36	DRL Lighting question First I've worked on cars my whole life but I'm a newbie to the 5th Gen Camaro world and I hope this post is in the correct location. My question is I have the harness in my 2010 2SS to make my DRL's stay on all the time but I would like to put a switch going to them so that I can manualy control them like fog lights. I know they make a harness for this but I was wondering why I couldnt just wire the DRL's Ground to a switch and be able to just kill the ground circuit? Ive read in another post that if you mess with the power going to the DRL's that it might could back feed into the pcm don't know how accurate that is but my thoughts are on killing the ground is it would just be the same as if the bulbs had blown. Thanks for any information

09-23-2014, 01:05 PM	#2
Sir Nuke Master of All Things Drives: '26 Corvette Stingray Join Date: Jul 2009 Location: Southeast of Houston, Texas Posts: 22,705 View My Garage	think about it......doing what you are proposing is really no different than having the bulbs going out. __________________

09-23-2014, 01:45 PM	#3
Sinister_SS Drives: 2010 SS Camaro Join Date: Aug 2014 Location: United States Posts: 36	Thats what I was thinking just wanted to make sure that I wasn't going to fry one of my modules

09-23-2014, 01:52 PM	#4
Joe@NightOwlLEDs Drives: 2011 SS Convertible Join Date: Mar 2013 Location: Suwanee, GA Posts: 373	There are two ground wires in the DRL harness. I'm not certain if one is for both side markers, and the other one for both DRLs, or if they are split side-to-side. But interrupting the ground would not be harmful. Probably what you are referring to is back-feeding the BCM by giving the DRL 12V when the BCM is telling them to be off. There are two ground wires, two side-marker wires, and two DRL wires. The ZL1 adds two more wires for both fogs.