I have noticed a small electrical connector with 3 wires--red, black, and white wires--in the area near the front driver's side head lamp. My 2003 two door 4WD Blazer lights are all working. The parking light, turn signals and high and low head lights are all working properly. I have done a search and found nothing helpful. I did have a small front end collision repair recently and it bothers me something was not connected properly.

 

Did I mention that the R,W,& B connector is not connected to anything? It is just hanging there behind the headlight assy and the parking light area. Sometimes manufacturer's build wiring harnesses for a multitude of vehicles and if a vehicle doen't have that option, it just hangs there. I would rather know what it is for. I looked and can't find a similar connector on the passenger side!?

 

Okay, OP here. I pulled the driver's side headlamp assy off yesterday to see where the three wires were coming from. They are going straight to the head light and a 1 and 1/2 " round cover on the back of the 'outside' head light. The cover is held on by two philips screws. It is not the main H/L bulb connection.