Hi,
That is what sounds like happened. The two need to be separate and can't be tied together. The signal wire is exclusive to the signal bulb and can't be powered with the park lights.
The park lights have constant power when the lights are on. Therefore, you don't see the flash. When the lights are turned off, then power is on/off to cause it to flash and is visible.
Let me know if you are able to get it.
Take care,
Joe
May 21, 2023 at 9:58 PM