But what happens if you’ve got the option to’t get your headlights to turn off?
But headlights can also fail in the other direction.
This can be accomplished in several ways:
Your headlights should now be disconnected.

Lifewire / Li Zhang
If that system fails, it may cause the headlights to remain on.
Removing or replacing the daytime running light module will probably fix that problem.
Disconnect the Battery
The easiest way tokeep your car battery from dyingis to disconnect it.
The negative cable is typically black, while the positive cable is typically red.
Once the battery is disconnected, the headlights will turn off, and the battery won’t drain.
If the headlights turn off, you oughta buy and install a new relay.