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Discussion Starter · #1 · (Edited)
LED with built-in resistor issue

I just purchased four 7507 led turn signals with built-in resistors for my S40 T5 2005. I installed the LEDs, but I am getting an error stating the bulbs are burnt out and hyper flash when I use the turn signal.

I am thinking the issue might be the peanut bulbs on the side mirrors. It is the only stock regular bulb in the car and I believe it is not flashing in sync with the LEDs and is causing the error to appear. I have been trying to figure out how to change the peanut bulbs, but it seems to be pretty difficult.

Has anyone been able to solve this issue or have any ideas how to fix this?

Please help

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