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. So, I changed the side mirror bulbs to LED lights, but no luck!

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

Please help

Thanks

 

It’s only giving that error because the bulbs are not being detected. There is no synchronization issue but you can try to change the value of resistors to a lower value and see what happens. Do try to go slow with lowering of resistor values because if you lower it a lot suddenly it might burn the LED.

 

A Quote from a vendor:

Special Note

If you are using these LED bulbs for turn signal lights, you might need to add a pair load resistors to prevent hyper flashing or malfunction problem

50W 6Ohm LED Load Resistors | LED Turn Signal Lights Hyper Flash Fix


JPN