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On a 2010 ford focus, if the headlights always stay on does this mean the switch is faulty? I believe the switch is always powered and when turned on it switches to negative, causing the lights to tur

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  • Cars & Trucks Master
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You are right about the switch connecting to ground to complete the circuit. Yes, you are also correct about the switch POSSIBLY being bad...but it might also be the relay under the hood with welded contacts staying closed and keeping the headlights on!

Posted on Jan 14, 2013

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Posted on Jan 02, 2017

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SOURCE: 1990 geo metro headlight problem

hmmmm sounds like you are on the right track with the ground . with as much current as headlights pull it is possible that the intermittent open you are experiencing has to do with heat coming from an open in the wiring . i believe your best bet would be to locate a wiring diagram for your cars headlight circuit and inspect every wire in that circuit as well as one surrounding for thing like : burn marks , corrosion , places where insulation has worn off or is no longer even there ( :) ) ,and i believe you may find something . also , some cars come with a set of relays specifically for the headlights . these the headlights may be drawing extra current through the relay causing it to switch off (means headlights are bad ) , or the relay itself may have worn out over time (relay (s) may be bad ). i hope this helps you

Posted on Aug 06, 2008

  • 2 Answers

SOURCE: headlights wont come on and bright lights won't stay on hold bright light switch and blower works

I had the same problem. The solution is simple; the ignition switch needs to be replaced. This is an easy do-it-yourself project. Here are instructions:
http://forums.vwvortex.com/zerothread?id=2532481
Check for a switch on ebay, they are about $15. After 10 years they wear out.

Posted on Oct 18, 2008

wdavid999
  • 1 Answer

SOURCE: 1998 dodge dakota v8 magnum headlight problem

headlight switch is overheating ... replace it be sure to check the plug on the harness making sure it did not melt. the design is poor too many wires going thru one switch. It will go bad again and again especially if you do alot of night driving or use your high beams alot.and by no means use any other headlights other then factory issue.

Posted on Oct 30, 2008

  • 87 Answers

SOURCE: Blows fuses when parking lights are turned on. Headlights work fine even running lights.

If it only happens when you turn the switchto the parking lights then it is most likely the swich that is the problem. Light swich failure appears to be a common fault with fords

Posted on Apr 23, 2009

alicantecoli
  • 22246 Answers

SOURCE: my 1998 grand cherokee headlights won't turn off

have you disconnected the actual switch and see what happens

Posted on Jun 20, 2009

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