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If the DRL indicator is on, it usually means that the computer has detected a problem. This light should go off when the system has confirmed that everything is working properly. Usually a faulty light bulb can be the cause, but there are fuses and relays on the circuit that can cause similar problems.
The daytime running lights come on when the engine is running and go out or dim only when the headlights are turned on. Since the DRL turns on and off automatically with the vehicle’s engine, there’s no risk of forgetting to shut it down and drain the battery.
The DRL is a light on the front of a vehicle that stays on when the engine is running. Unlike the headlights, the daytime running lights are rather dim and do not illuminate the road. The purpose of daytime running lights is to increase the visibility of your car so that other drivers can see you on the road.
To activate the daytime running lights you need to:
General Motors Automatic Headlight System
As you may have noticed, many cars with daytime running lights require manual activation of the headlights / taillights. At night or in the dark, it is forbidden to drive a car or truck without two low beams and at least one rear light. The high beams are not enough.
Daytime Running Lights
The daytime running light module is usually located under the dashboard or in the engine compartment. You can find the exact location in the car repair instructions.
It is the symbol for high beams (DRL). This light turns green with small dots when the daytime running lights are on. A DRL system is required for all vehicles first sold in Canada. The system turns on the high beams when the car is moving during the day.
The 2006 Honda Civic DRL Indicator Light indicates that the daytime running lights are on and working properly. When the headlights are on, turn off the DRL light.
The DRL relay is for daytime running lights.
Daytime Running Lights
Many cars these days have automatic headlights that come on in dark or dark conditions, but that’s not necessary. Likewise, American cars don’t need daytime running lights or DRLs, the low beam lights that come on when the car is in motion.
DRL Relay Diagnosis
A common cause of this condition is a loose light bulb in its socket. To verify this condition, expose the appropriate backlight. If the entire system flashes (all bulbs flash), the tail light fuse, relay and associated wires on the headlight / tail light switch flicker.