My Low Beams Are Not Working?

Tiny
2003FOCUS
  • MEMBER
  • 2003 FORD FOCUS
S both low beams quit working at the same time, high beams are still working any clue as to the problem and how to fix it?
Sunday, August 23rd, 2009 AT 2:15 PM

6 Replies

Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
Check owners manual it will talk about the relays. there will be a couple of relays under the hood. There are two for the headlights. one fir high beam and one for low beam. check to see if you are getting power to the low beam relay. The relay could be bad

Here's a couple guides to help you out

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Attached below is a diagram to show you which relay
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Monday, August 24th, 2009 AT 8:31 AM
Tiny
KEITH1313
  • MEMBER
  • 1 POST
  • 2007 FORD FOCUS
  • 2.0L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 115,000 MILES
My girlfriend's 2007 Ford Focus SE has no headlights. It has Reverse, Running, Flashers, Turn Signals, etc. Just neither headlight. One night they randomly stopped working all together. I've tried new bulbs - this isn't the problem. Additionally, we've tested all the fuses.

My brother rigged up the headlights to the battery directly, to simply test them, and they do work that way. I have removed his little 'rigged up' wiring job since then.

About 1-2 Months later, the car began having power issues. On the way to work, the battery light came on. On the way home, every light on the car quit working and killed upon coming to a stop. My father and I had the alternator and battery tested by both AutoZone and Oreilly's, both of which were tested good.

So now I'm stuck with a focus that not only has no headlights, but also drains the battery of life on daily basis. I've tested fuses, headlight bulbs, alternator, battery yet I can't find the problem. I'm not sure if both issues are related or unrelated. I'd be grateful for some help.
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Sunday, May 19th, 2019 AT 11:36 AM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
Trying to get you a diagram of the system

Need to narrow things down

Sedan or wagon? # Of doors?

With or without "drl" (daylight running lights)

Maybe this will aid you in finding the problem

The medic
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Sunday, May 19th, 2019 AT 11:36 AM (Merged)
Tiny
SMOKEYTANK
  • MEMBER
  • 1 POST
  • 2005 FORD FOCUS
Electrical problem
2005 Ford Focus Two Wheel Drive Automatic

low beams do not work both sides but high beams do

check fuses, and bulbs look good, any hints?
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Sunday, May 19th, 2019 AT 11:36 AM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Sounds like a faulty low beam relay. Your low beam relay is located in the battery junction box (see figure below).


https://www.2carpros.com/forum/automotive_pictures/261618_Noname_149.jpg



Click the following link for guidance on testing your relay. Post results and I will continue diagnosis if relay tests good.

TESTING RELAY
https://www.2carpros.com/how_to/how_do_i_check_a_relay.htm

Thanks for using 2CarPros.com !
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Sunday, May 19th, 2019 AT 11:36 AM (Merged)
Tiny
JASON BARKLEY
  • MEMBER
  • 1 POST
In response to your battery problems on the passenger side under hood the bigger wire that goes to your battery from alternator follow it up there os a black plastic cap covering and inline fuse that protects incase of overcharging amps 130 amp - 150 amp fuse is blown. Cap looks just like cover to keep wires together not marked well. Bolts in on both sides of fuse.
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Tuesday, August 30th, 2022 AT 4:54 AM

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