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Aftermarket blinker controller to fix LED Hyperflash?

Old Apr 3, 2026 | 3:23 PM
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Question Aftermarket blinker controller to fix LED Hyperflash?

2003 GMC Savana, put in all LED blinkers and now I have hyperflash which doesn't really bother me but I'm curious is anyone has found an after market replacement for the GM 25746427 light controller that will resolve it. The original part goes between $60-$120 as I've seen it so I wonder if it's worth bothering with.
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Old Apr 4, 2026 | 7:59 PM
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Any change you have a link? I have found no relevant results when searching for "034Motion controller"
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Old Apr 4, 2026 | 8:00 PM
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Just so people know what part I'm talking about

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Old Apr 6, 2026 | 12:45 PM
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I think I found what I'm looking for, the NOVITA LM502:

https://www.rockauto.com/en/moreinfo...=10139&jsn=652

It's currently going for $50.79 on Rockauto (for reference)

Last edited by RevN3 Adventures; Apr 6, 2026 at 1:19 PM.
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Old Apr 6, 2026 | 2:45 PM
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I just installed the recommended resistors to solve the led hyperflash
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Old Apr 8, 2026 | 10:32 AM
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Solved. Just a matter of unplugging one and plugging in the other. Here is the needed device with the original for reference:


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