Headlight problem
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Headlight problem
Hello guys, my f150s headlights turn on automatically when its night time even if i take the headlight switch off of automatic, does anyone know how to make the headlights turn on only by moving the switch no matter if its night time? Thank you
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From: Coquitlam, BC
There's a sensor on the dash that tells the lights if its dark or not when on "automatic" mode. It's the one that flashes red as a little alarm decoy thing. Cover that and see if it changes anything.
But yes, most vehicles have day-time running lights. Atleast newer vehicles do. The lights are always on while driving. They are dimmer, but still on to let people know that you are driving. On old F-150s you could push the e-brake down a little to trip a sensor into not turning the lights on but not actually engaging the E-brake at all. On these trucks, I think you need to wire it different to turn the lights off.
But yes, most vehicles have day-time running lights. Atleast newer vehicles do. The lights are always on while driving. They are dimmer, but still on to let people know that you are driving. On old F-150s you could push the e-brake down a little to trip a sensor into not turning the lights on but not actually engaging the E-brake at all. On these trucks, I think you need to wire it different to turn the lights off.
Thread Starter
Senior Member
Joined: May 2013
Posts: 136
Likes: 2
There's a sensor on the dash that tells the lights if its dark or not when on "automatic" mode. It's the one that flashes red as a little alarm decoy thing. Cover that and see if it changes anything. But yes, most vehicles have day-time running lights. Atleast newer vehicles do. The lights are always on while driving. They are dimmer, but still on to let people know that you are driving. On old F-150s you could push the e-brake down a little to trip a sensor into not turning the lights on but not actually engaging the E-brake at all. On these trucks, I think you need to wire it different to turn the lights off.
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Joined: Jun 2009
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From: Edmonton, AB
Like corey_lax said, is it the Daytime Running Lights (DRL)? If so, go into your underhood fuse box (drivers side) and there'll be a relay for DRL if you have it. Pull it out and see if it fixes your problem. If you don't have the relay, then you don't have DRL's and it's a different issue.
Otherwise like Techrep said, you have a bad switch or someone's done some funky wiring.
Otherwise like Techrep said, you have a bad switch or someone's done some funky wiring.
Last edited by homer; May 20, 2014 at 01:46 PM.
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Thread Starter
Senior Member
Joined: May 2013
Posts: 136
Likes: 2
Like corey_lax said, is it the Daytime Running Lights (DRL)? If so, go into your underhood fuse box (drivers side) and there'll be a relay for DRL if you have it. Pull it out and see if it fixes your problem. If you don't have the relay, then you don't have DRL's and it's a different issue. Otherwise like Techrep said, you have a bad switch or someone's done some funky wiring.