LED Flasher Relay - Page 10 - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Exterior Exterior

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  #91  
Old 09-03-2011, 01:00 PM
val740's Avatar
val740 val740 is offline
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2008 Chevy TrailBlazer LS
Steel Gray Metallic 4.2L I6 2WD
Join Date: Feb 2010
Location: beverly hills,fl
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flasher module

I have a 08 trailblazer,L6,module looks the same except the number is different,
15231201. nice pics.I'm going to have to replace mine, having the same issues with my trailer, rt signal and brake light don't work. thanks to other post and authors{the roadie,rrbrosse and others)
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  #92  
Old 10-17-2011, 12:44 PM
schmidbauermg schmidbauermg is offline
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2007 Chevy TrailBlazer LS
Red Jewel Tintcoat 4.2L I6 4X4
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Quote:
Originally Posted by doorman View Post
I FINALLY GOT IT FIGURED OUT!! LM 487 and 400 ohm resistor

The 5vdc(lights out) and the 7vdc(lights on) on the brake circuit is not LED related feedback, it's from the monitoring circuit for the cruise disable input. The LM 487 was not designed for single brake light assemblies, but for the full size trucks, with the quad brake lights. This is probably why most of you with quad brakes have less problems with the cruise and the LM 487. I have soldered a 400 ohm, 1/2 watt (it's 1/8"W x 5/16" L) resistor on the LM 487 between the brake terminal(B) and the ground(E). This dissipates the small amount of voltage from the cruise cutout circuit, and allows the cruise control to work, for those of us who don't have quad brakes. It also still disengages the cruise control when the brakes are applied. No need for load resistors on the signal lights, and I still have full brake output, in case anyone was concerned about that.

This post should take of all the questions previous in this thread. Glad to help.
Has anyone else tried this? I cannot find that resistor. There is a 330 and 470 ohm both 1/2 watt here locally. Would one of those work or are they too big/small? If so, which one would work, or both? Also, how did you solder it in? Any pics? Appreciate the help.
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  #93  
Old 10-17-2011, 01:05 PM
blckshdw blckshdw is offline
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2005 Chevy Trailblazer LED EXT
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Quote:
Originally Posted by schmidbauermg View Post
Has anyone else tried this? I cannot find that resistor. There is a 330 and 470 ohm both 1/2 watt here locally. Would one of those work or are they too big/small? If so, which one would work, or both? Also, how did you solder it in? Any pics? Appreciate the help.
I'm not sure what math Doorman used to come up with 400 ohms, or if it was just what he had laying around, so I can't say for sure. Try one (without soldering it in) and give it a test run to see if it does the trick.
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  #94  
Old 12-03-2011, 11:45 PM
07_TB_RIDER 07_TB_RIDER is offline
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  #95  
Old 04-20-2012, 09:43 PM
nelfort nelfort is offline
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2003 GMC Envoy SLT XL
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Awesome thread with all the info.....for the 2 or 3 of you that seem to have this down packed is it possible for you to make a list of all LEDS BULBS and RELAYs that are required to swith over all exterior stock lighting to LEDS?


Much appreciated
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  #96  
Old 07-22-2012, 01:31 AM
s6david s6david is offline
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2002 Chevy TrailBlazer LT
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running lights out?

So I bought a set of led lights for the front signal and tried it on my 02 TB that I just purchased. It caused the signal to blink really fast so I put the original ones back on. I'm not 100% sure but I thought these running lights were on whenever I have the engine running. My signal still works but they're not consistently on anymore. Are they supposed to? I check the fuse box in Can anyone tell me that he's running lights are supposed to be on always?
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  #97  
Old 07-22-2012, 01:43 AM
s6david s6david is offline
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By the way, I found these LM487 flasher on amazon for 36 bucks
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  #98  
Old 11-13-2012, 08:34 PM
djez015 djez015 is offline
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2002 Chevy TrailBlazer LT
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Has anyone had a problem with there front parking lights not coming on ????? they come on with the turn signal but do not stay on , I have noticed a blown fuse from them but when i replace it the fuse just blows again
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  #99  
Old 12-05-2012, 11:05 PM
gdot101 gdot101 is offline
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2003 GMC Envoy SLT
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hey question does anyone have tinted tail lights with there LED and if so whats a good LED count to get the same amount of light that we prior had without tint
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  #100  
Old 11-23-2014, 07:53 PM
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Pj61 Pj61 is offline
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Quote:
Originally Posted by bigapple View Post
It is confirmed. The LED flasher relay is the LM487 from either Napa Auto Parts or from LEDlight.com
I have been doing some research about this also and this is what I have found out. I believe you are using the wrong flasher. The LM486 should be the correct one not the 487. Big Apple how did you confirm this?

I went to 2002-2009 Chevrolet Trailblazer LED Turn Signal Flasherdiodedynamics.com and searched for bulbs by vehicle. Scroll to the bottom of the page and they list only one flasher manufactured by Novita. Going to their site and comparing the 486 with the 487.
LM486
•12 Volt applications
•LED compatible
•10 Terminals
•2 Turn / 4 Hazard + Accessories
•162 Watt max

Cruise control compatible


LM487
•12 Volt applications
•LED compatible
•10 Terminals
•5 Turn / 10 Hazard + Accessories
•300 Watt max


The only other difference that I see is the max watts and the number of turn/hazard. But the 486 says it is compatible with the CC. This may be why we are having CC issues.

Diodedynamics - $60.00
Autozone - $51.99
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