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Headlight High Beam Problem - ONLY on the Left Side

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:) I promise, I DID check the fuses - at the very beginning (when I just had high beam on the LH side and no low beam). But then I didn't check them again, until the very end. Sorry to waste everyone's time trying to diagnose something that had such a simple fix.  :(

 

I know... what really happened was that Originally the bulb's Socket was bad, but the Fuse was good; then when you cut its wires from the old Socket to put the new one, you blew the Fuse and did not check it again... until now; that's a normal thing to happen which only the Experience will taught you to know how to do these kind of repairs.

 

I bet that next time you'll be checking Fuses / relays \ Wirings in a different way.

 

Kind Regards.

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  • Loyale 2.7 Turbo
    Loyale 2.7 Turbo

    I kindly suggest you to install a High temperature, Ceramic plug.   So you'll get rid from problems regarding Headlamp bulbs on that Subie.   Kind Regards.

  • Fairtax4me
    Fairtax4me

    Red/blue is the power for both filaments.   You should be testing with the black probe connected to the battey negative.   Red probe to the blue/red, black on battery -, see what voltage you get.

  • Fairtax4me
    Fairtax4me

    It won't be. The yellow/blue wires are spliced together, as in two wires become one. From that splice the ground path for both low beam bulbs is the same wire. One bulb works fine, which says that w

Pretty much with any electrical repair if you fix one problem and then have a new problem, you have to go back to square one and recheck all the basics. It doesn't always work out perfectly the first time around.

  • 4 months later...

Hello....  just a quick note to the participants of this thread....    Thanks for saving me a bunch of money and time!  And specifically to xntryk1....  dude, don't feel bad.  I've been trying to track down this issue since I replaced my LH harness 2 months ago...  same thing... dim headlight, no highbeam.  Due to the fact that the bulb was on dimmly, I thought the fuses must be good and failed to spend the 30 seconds to check.....    duh. 

Best advice on this thread....  with electrical problems, treat every change like a fresh start, double checking all the little things.....

Once again, USMB saves me money!

Thanks!

Edit: nm

just realized this was solved

I was responding to post on page 2

gotta check my brain fuse!!!

Edited by brus brother

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