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LED Tail light Conversion Assist

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Old Jan 9, 2019 | 06:42 PM
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LED Tail light Conversion Assist

I just got a set of LED tail replacement bulbs from HR. I put them in, and the bottom bulbs in both laps are on bright and stay that way. The upper flash and function appropriately. I thought I could install them without the load resistors by disabling the outage setting in the BCM. Has anyone else experienced this prior to configuring the BCM or putting load resistors in? I have turned the bulbs around and moved the bulbs between top and bottom. When I put the standard bulbs in, they function correctly. Thanks in advance.
 
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Old Jan 10, 2019 | 07:10 AM
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Haven't heard of this one yet. Every bulb in the truck has been changed to LED in my late 2017 with no problems. No resistors in mine, only the outage setting adjusted in FORScan. My tail/brake/turn signal bulbs came from SuperBright LED and the reverse lights came from HR.
I'd contact HR and see what their take on it is. At least the tails are much easier and faster to access compared to the headlights so hopefully it'll be a quick fix for you.
 
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Old Jan 10, 2019 | 07:30 AM
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Originally Posted by Poncho450
Haven't heard of this one yet. Every bulb in the truck has been changed to LED in my late 2017 with no problems. No resistors in mine, only the outage setting adjusted in FORScan. My tail/brake/turn signal bulbs came from SuperBright LED and the reverse lights came from HR.
I'd contact HR and see what their take on it is. At least the tails are much easier and faster to access compared to the headlights so hopefully it'll be a quick fix for you.

Thanks, I have a call into them. I am not real sure what is going on. I thought Id do a BCM reset in FORSCAN and see if that resolves it. I don't think it will because the incandescent bulbs work fine.
 
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Old Jan 10, 2019 | 07:33 AM
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Sounds to me like you might have the wrong bulbs, but I haven't done this mod yet.
 
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Old Jan 10, 2019 | 07:44 AM
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Originally Posted by briangp
Sounds to me like you might have the wrong bulbs, but I haven't done this mod yet.
They are the correct bulbs. I have another set coming from Amazon today to see what happens
 
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Old Jan 10, 2019 | 07:49 AM
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HR takes care of their folks, I'm sure they'll figure ya out.
 
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Old Jan 10, 2019 | 08:07 AM
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Originally Posted by briangp
HR takes care of their folks, I'm sure they'll figure ya out.

I wont argue with that one bit. They are awesome. I just wanted to see if I had the same issue with another set of bulbs.
 
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Old Jan 10, 2019 | 09:32 AM
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I pulled the DTCs from the BCM and I am getting open to battery DTCs with the LEDs installed. Even with "no outage" programmed, the lower LEDs are giving the error. I put the incandescent lamps in and there are no issues. Hopefully HR knows what to do. I don't want to modify the wires so we will see what happens, but it seems they aren't giving enough resistance.
 
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Old Jan 10, 2019 | 09:36 AM
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There is a code that you can put into the BCM to change your setup for LED. I'm guessing it's the same one for the hyper flash issue. I think Forscan can do it from the wizard menu.
 
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Old Jan 10, 2019 | 09:39 AM
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I changed ABM outage and taillight outage to no outage. Not sure what else needs to be changed
 
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Old Jan 10, 2019 | 11:14 AM
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Spoke with HR this morning. They said try with resistors in place. I did and it works. I have my lamps set to no outage and ABM set to no outage. I also turned LED to stop turn, and none of those settings worked. Putting load resistors in did.
 
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Old Jan 10, 2019 | 12:18 PM
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Originally Posted by 18SD_Lariat
Spoke with HR this morning. They said try with resistors in place. I did and it works. I have my lamps set to no outage and ABM set to no outage. I also turned LED to stop turn, and none of those settings worked. Putting load resistors in did.
Funny how things can sometimes vary from truck to truck. Glad you got it fixed anyway!
 
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Old Jan 11, 2019 | 10:39 AM
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Disregard this post.
 
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