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Discussion Starter · #1 ·
An odd thing happened recently:

My headlights and fog lights are no longer working; however, my dash-light tells me that no matter if my brights are switched on or not, the brights indicator is on (it's the bright version, not dim). For background, almost exactly one year ago I did replace a fried wiring harness on the drivers side. Other than that it's 100% stock and nothing has been tampered with (although the car itself does have other issues, such as a squeaky AC compressor bearing and running slightly hot)

What I've done:
  1. Checked all fuses - Good
  2. Switched relays - No change
    1. I do not have a test kit at this time
  3. Checked bulbs - Look good
    1. Haven't bought new ones because the dash-light leads me to believe that it's not a bulb issue.
  4. Pulled the hood fuse box and checked for loose connections underneath - Good
  5. Checked the battery (purchased in 2016) - 94% charged, charged it slowly to 100%, problem persists with lights
My thoughts:
  • I'm thinking that perhaps the switch for the brights has gone on the fritz.
    • If the brights are on, I believe the fog lights do not work which would explain why those aren't working at the moment.
  • My turn-signals, and circular honeycomb corner-esque lights still work.
This being said, that doesn't explain why the headlights do not work at all if it's just the switch for the brights. Help! :( I've searched all over google for this issue, I find iterations of the problem, but not my exact problem.
 

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2012 Forester 4 speed auto
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Purchase a voltmeter and see if there is 12V at the headlight bulb socket when the lights are turned ON. It there is voltage then check the ground wire continuity. If there isn't voltage check the relay. You will need a wiring diagram to check it using a voltmeter. It's a simple circuit. Chances are the wiring harness is damaged or isn't routed correctly.
 

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Discussion Starter · #3 ·
Purchase a voltmeter and see if there is 12V at the headlight bulb socket when the lights are turned ON. It there is voltage then check the ground wire continuity. If there isn't voltage check the relay. You will need a wiring diagram to check it using a voltmeter. It's a simple circuit. Chances are the wiring harness is damaged or isn't routed correctly.
I'll snag one in just a moment.

Do you think it was wired wrong when I did it and that's the culprit? It just seems odd that it took a year to go bananas.
 

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Discussion Starter · #4 ·
So, I got a meter and everything checked out. I tested the bulbs and even though they look perfect they were burnt out.

I feel like an idiot, it's weird that they went out at the same exact time. Oh well!

Thanks for the reply, it helped more than you'd imagine.
 
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