After looking through a few side marker threads, i didn't see anything that really was similar to my small issue. My passenger side front marker has lately been dim, but every time I lock/unlock the car, it flashes bright as can be like the rest of them. But when the parking/headlights are on, it's back to being dim. Think it's just time to replace it or could be a connection issue possibly? Thank you for any input.

 

if you're really determined to see if it's the connection, try plugging the working sidemarker into the one that's faulty and see if it does the same.

 

Good idea, will try that thanks.