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post #1 of 18 (permalink) Old 07-27-2014, 11:45 AM Thread Starter
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LED switch back problem

I got some led switch back bulbs on eBay and installed them with resistors. My problem is if the DRL is on and I use the turn signal the bulb remains white and flashes a little amber but not noticeable enough for a turn signal from far away. Why doesn't it switch back?


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post #2 of 18 (permalink) Old 07-27-2014, 01:04 PM
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Do you have the link to the bulb?

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post #3 of 18 (permalink) Old 07-27-2014, 01:12 PM Thread Starter
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Look at this on eBay:

http://pages.ebay.com/link/?nav=item...d=360960587769

2x T25 3157 60 SMD LED Amber/White Running Brake Switchback Light Lamp Bulb US


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post #4 of 18 (permalink) Old 07-27-2014, 01:29 PM
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That is not a true switchback bulb. read the specs.

Socket type: 3157, (Dual filament , White and Amber functions.)

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post #5 of 18 (permalink) Old 07-27-2014, 01:30 PM Thread Starter
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So what kind do I need to look for?


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post #6 of 18 (permalink) Old 07-27-2014, 02:17 PM
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I think 05-06 use the 3157 CK standard socket configuration. This means a regular 3157 can be inserted which ever way and it will still work.



So you need a switchback that meets these criteria.

---------- Post added at 05:17 PM ---------- Previous post was at 05:15 PM ----------

So this one would probably work for you plus it has cree in DRL mode.

2X 3157 Dual Color White Amber Switchback High Power LED Turn Signal Light Bulbs | eBay

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post #7 of 18 (permalink) Old 07-27-2014, 02:24 PM Thread Starter
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Quote:
Originally Posted by Coby7 View Post
I think 05-06 use the 3157 CK standard socket configuration. This means a regular 3157 can be inserted which ever way and it will still work.



So you need a switchback that meets these criteria.

---------- Post added at 05:17 PM ---------- Previous post was at 05:15 PM ----------

So this one would probably work for you plus it has cree in DRL mode.

2X 3157 Dual Color White Amber Switchback High Power LED Turn Signal Light Bulbs | eBay



That one says in the description is doesn't support 3157ck socket though.


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post #8 of 18 (permalink) Old 07-27-2014, 02:29 PM
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Uh! I believe it says DO NOT FIT 3157CK/SRCK type socket


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Last edited by Coby7; 07-27-2014 at 02:34 PM.
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post #9 of 18 (permalink) Old 07-27-2014, 02:31 PM Thread Starter
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Quote:
Originally Posted by Coby7 View Post
Uh! I believe it says DO NOT FIT 3157CK/SRCK type socket

Yeah so if I have a 3157ck socket in my 05 doesn't that mean that bulb won't work?


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post #10 of 18 (permalink) Old 07-27-2014, 02:35 PM
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These are the one's I have and never had a problem with them. There's no white when it turn to amber.

http://www.ddmtuning.com/Products/31...-CK-Compatible
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