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Hello,
I noticed how there is aftermarket support for alot of vehicles in taillights with LED's and the TSX 2nd gen doesn't have any options but the Honda Spirior expensive OEM's. I read this thread http://cl.*********.com/forums/showthread.php?t=826515 from another forum and it inspired me to do my own version.

I wanted to use a constant current and constant voltage controller, but the options are expensive and were not suited for the application. This picture comes from the thread previously mentioned.



You see a 12v regulator, since the voltage fluctuates in a car. A diode, which protects the led from the reverse current that occurs when the car starter is used to turn the engine on. The resistors go in the cree LED to limit the current. You can google Series LED resistor calculator (VF=2.5 per led, I=70ma per led, source voltage=12v). The rheostat is optional, only if you want full control of the brightness. I used a 1/2 watt 200 ohm resistor on the tail light controller to limit the output instead of a rheostat. The brake light doesn't need this since we want the full output for the brake.

I purchased a Radioshack DIY blank PCB and trimmed it to its designated size. Initially I purchased a pair of small trailer indicators, but then i realized there was not going to be enough output with this alone for the application.





Here you can clearly see the aftermarket indicator in the center and 11 Cree CP41B-RFS-CN0P0EE4 LED's which are easily purchased online at any electronics website, unlike the Philips Lumileads. LED specifications require 2.5V and 70ma.

The controller only has few parts and its easy to build if you have beginner soldering skills like me.







Here is the enclosure and the four controllers (2 for each side).





Now here is the wiring all done inside the controllers.



LED's in operation

Tail lights


Applied Brakes


Outer ring


Inner Circle (trailer indicator unit)


Please forgive my poor pictures, they are here mostly for representation. I haven't installed the units yet, but they are so bright i cant stare at them for long because they leave me color blind. I have to find the way to open the OEM units without breaking the red lens. I am considering opening it through the back and resealing it again.

What are your thoughts and suggestions???
 

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try a little heat.....amd get butyl rubber to seal them back up/
 

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Nice job! Unfortunately, the red lens and case are welded together, so heating will NOT allow you to separate them. I used a dremel tool with a thin cut-off wheel and then black windshield sealant to seal it back.
here is my pics, video, and DIY:
http://www.tsxclub.com/forums/2nd-gen-electronics/76586-led-tail-brake-turn.html

For some reason I ended up with slight fogging on the turn signal part, but not on the brake/rear light? Also, to maintain the factory harness, I broke the OEM light bulbs and soldered the LED leads to them.

Best of luck and I look forward to seeing the finished product!
 
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