How to Test Daytime Running Lights at Night?
Daytime running lights (DRLs) are a type of vehicle lighting device that is designed to increase the visibility of a vehicle during the day. DRLs are usually found on the front of a vehicle and are designed to turn on automatically during daylight hours. While DRLs are a great safety feature, they can also be used to test the functionality of a vehicle’s headlights at night. Testing DRLs at night can help ensure that the headlights are working properly and can help diagnose any problems that may be present....