How to Wire Daytime Running Lights?

2 Answers
SanFinn
07/24/25 12:42am
Steps for wiring daytime running lights in a car: 1. Locate the ACC position at the bottom left of the steering wheel. 2. Secure the daytime running lights in the appropriate position. 3. Connect the black ground wire to the negative terminal of the battery, the red wire to the ACC relay, the two white wires to the headlight fuse, and the two yellow wires or one yellow and one green wire to the positive terminal of the turn signal. 4. After installing the wiring harness, recheck for any loose connections. Precautions for wiring daytime running lights with ACC power: 1. Use corrugated tubing for the wiring. 2. Seal the engine compartment and connections with tape to prevent leakage or water ingress, reducing safety hazards.
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Camilla
08/10/25 8:27pm
Last time I installed daytime running lights on my car, and the process went quite smoothly. Find some free time, prepare a multimeter, wire strippers, and insulating tape. First, locate the ACC fuse position in the fuse box. Start the engine and use the multimeter to test; the one that drops to zero voltage after turning off the engine is the right spot. Strip the positive wire of the daytime running lights and connect it to the hole in the fuse slot, then ground the negative wire to the metal frame of the car body, ensuring a secure connection. Wrap all connections with tape to prevent short circuits or water leakage. After installation, start the engine to test if the lights turn on, and they should turn off when the engine is off. During the process, I encountered a loose wire connection, which was fixed by tightening it again. Daytime running lights enhance driving safety, especially in foggy conditions where visibility is crucial. When choosing lights, opt for waterproof LED ones for better durability. The whole process took me about half an hour, and with the right tools, it wasn’t too difficult.
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