huh...I'll have to check at lunch to see if they're lit while the lights are on. I could be wrong...johnparkyourcar wrote:They are turn signals but by factory they are supposed to light up when you turn on the lights. From what I said on another thread, its probably because you have different bulbs in it. 7440 only have one filament but the 7443 have dual fiament which makes it light up when the headlights are on.