How-To: Install LED Taillights W/ Resistors (Coupe) - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 30 (permalink) Old 02-26-2012, 01:49 PM Thread Starter
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How-To: Install LED Taillights W/ Resistors (Coupe)

This How-To will show you how to remove your taillights install a resister and install your new LED Taillights. Coupe Only! Sedan taillights remove almost the same way but a tad different!

Tools Required:
------------------

11mm Socket
10mm Socket
Socket Wrench

1) Open your trunk and remove the black nut that holes your net in place

2) Peel back the carpet and your left with 3x 10mm nuts. Take your 10mm socket and screw all 3 bolts.

3) Slowly wiggle your taillight out and twist the bulb socket out of the headlight


4) Now its time to wire up your resister, Take one wire from the resister and splice it into the Green OR Yellow wire on the socket. For some reason my passenger side was green and drivers side was yellow. Take the other wire on the resister and splice it into the black wire on the socket. I used quiktaps but you can use what you'd prefer.

5) Now mount the resister where its out of the way. I used double sided tape and stock it inside right next to where the tail light mounts. Make sure nothing is touching it as it gets hot!

6) Connect your LED tail lights to your OEM socket. I have the "K2Motor" tailights so the leds plug into the socket then the socket twists into the tail light the same as OEM.

7) Reinstall the same as you removed them. Some taillights may require you to reuse the OEM gasket. These did not.

Now its time to install the reverse tail lights mounted on the trunk. Start by removing the cover over them and taking off the 11mm speed nuts. Once the nuts are removed you will see tabs that keep the taillight in place. Move those and take the tail light out.


9) Now with it removed my taillights required me to reuse the old gasket. Simply peel it off slowly. Its very sticky so you will have no issue getting it to stay on your new taillights. Also take note on the raised parts of it and make sure its put on the new tail lights the exact same way.

10) You may need to make your speed nuts smaller. Simply using a vice you can crush them ever so slightly to make them fit the taillights.


11) Reinstall the exact same way you removed them and be on your way with some new taillights!



Last edited by Coby7; 10-13-2012 at 06:21 PM. Reason: grammar resistor not resister
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post #2 of 30 (permalink) Old 03-06-2012, 12:15 AM
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what resistor do these tails need? thinkiing about getting some

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post #3 of 30 (permalink) Old 03-07-2012, 07:51 PM
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Current reducing resistors is what you need, the average LED is about 2 or 3 volts, if in doubt go to radioshack and tell them what your doing they should know what you need, usually when ordering LEDs online, they give you free resistors.

I'm planing on adding many LEDs to my balt, I will be posting some images here (In my own thread) soon, there should be plenty of information here on the forum for you to follow.

Also, you will need a resistor for making the blinkers not going so fast due to the decreased energy use, if its for a signal light.

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post #4 of 30 (permalink) Old 05-07-2012, 05:38 PM
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Are resistors required when upgrading all lights to LED? I'm thinking about doing the plate light, marker lights and possibly taillights/directionals. May also be going with HIDs soon too.



2009 Cobalt LT 2LT - Silverstar Ultra Low beams and fog lights along with a few LEDs.
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post #5 of 30 (permalink) Old 05-07-2012, 05:49 PM
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Blinkers only (front and rear)and I would use these instead (Simpler P&P). Just plug this in series with bulb.
http://www.ebay.ca/itm/LED-WARNING-C...item20c4519226

Also at least one of the third brake light bulbs needs a resistor or you will lose cruise.



---------- Post added at 09:49 PM ---------- Previous post was at 09:47 PM ----------

Quote:
Originally Posted by tr3y92 View Post
what resistor do these tails need? thinkiing about getting some
Usually 7 to 10 ohms @ 25watts.

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Last edited by Coby7; 05-08-2012 at 11:07 AM.
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post #6 of 30 (permalink) Old 05-08-2012, 08:52 AM Thread Starter
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We sell the resisters required for LED tails or blinkers.
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post #7 of 30 (permalink) Old 05-08-2012, 09:22 AM
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Quote:
Originally Posted by Mkulrey13 View Post
We sell the resisters required for LED tails or blinkers.
But do you sell the one I posted?

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post #8 of 30 (permalink) Old 05-08-2012, 09:28 AM
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ok I installed these same lights a month ago with no resistor, FYI!
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post #9 of 30 (permalink) Old 05-08-2012, 10:09 AM
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Do you have hyperflashing? Maybe yours had a built in resistor.

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Last edited by Coby7; 05-08-2012 at 10:12 AM.
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post #10 of 30 (permalink) Old 05-08-2012, 10:17 AM
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My blinker do flash a bit faster than normal but thats it. Is that what you are refering to?
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