How to Wire Daytime Running Lights?
2 Answers
Daytime running lights (DRL) are designed to signal the presence of a vehicle to the front during daylight hours and are installed on both sides of the front end. The installation and wiring method for daytime running lights is as follows: 1. Inspect the DRL wiring harness: Connect the two interfaces in the wiring harness to the daytime running lights respectively. 2. Identify the three wires (black, brown, and gray): Connect the black wire to the output terminal of the car's ignition switch; connect the brown wire to the negative terminal of the power supply; connect the gray wire to the output terminal of the xenon headlight switch. 3. Organize and secure: After connection, tidy up any excessively long wiring harness and secure it to the vehicle. Ensure that the wiring inside the car avoids high-temperature areas.
Installing daytime running lights should be done step by step for safety. With years of car experience, I recommend first turning off the engine and disconnecting the negative battery terminal. Use a multimeter to locate the ACC power line (which has power when the car starts), and avoid connecting to constant power to prevent draining the battery. Use the wiring connector from the kit to link it, securing it in the wire channel to prevent friction and wear. Add a fuse to prevent short circuits and fires. DIY can be fun, but don’t rush—ensure the lights have uniform brightness to avoid being too glaring. Remember to test if the lights turn on when starting the car after installation. If unsure, check the manual or consult a professional shop. This way, your car becomes more noticeable during daytime driving, significantly reducing accident risks.
