DRL Question
Here is your answer on a thread that went a bit array ... DRL = "Daylight Running Lights" 
https://www.ford-trucks.com/forums/1...eadlights.html
The only issue I see is if you unplug it then the high beam indicator stops working in the dash unless you insert a factory cap into the harness. Schematic indicates pins 1 and 8 are shorted to make it work properly, best guess.

https://www.ford-trucks.com/forums/1...eadlights.html
The only issue I see is if you unplug it then the high beam indicator stops working in the dash unless you insert a factory cap into the harness. Schematic indicates pins 1 and 8 are shorted to make it work properly, best guess.




