The daytime running lamp module is a component found on many newer vehicles and is necessary to the proper operation of the daytime running lamps. (yourmechanic.com)
Usually a bad or failing daytime running lamp module will produce a few symptoms that can alert the driver of a potential problem that should be serviced. (yourmechanic.com)
The daytime running lamp module automatically turns on your daytime running lights (DRLs). (yourmechanic.com)