As the days get shorter and I drive more in the dark, I have been noticing that my LED headlights have been flickering a bit lately. Today they suddenly went out completely!
Luckily, the high beams still worked. I just got to annoy people on coming and in front of me as I made my way home.
The light switch and dimmer switch seemed to be making the correct clicking sounds so I decided to try the connections starting with the ones I could get to easily.
The first one I checked was the one where the grill harness meets the engine bay harness. As I touched it the headlights came on so I hit the right one first try.
Pulling it apart, I could see lots of corrosion on the pins. I used a brass brush and Deoxit cleaner https://amzn.to/2WM5WiY to clean them up. I then plugged and unplugged the connector a few times to clean the sockets.
The lights seem brighter again like they were when I first installed them. Hopefully, they will stay on in the dark now.