2007 379 low beam issue

Discussion in 'Peterbilt Forum' started by Muddpuppy, Sep 1, 2012.

  1. Muddpuppy

    Muddpuppy Bobtail Member

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    Sep 1, 2012
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    My low beam light stop working. I replaced the bulb. I switched the circuit breaker using the other one to see if light would come on. The right side came on and the left side high beam came on but the left side low beam didn't. I checked the wires nothing is broken. What else should I try?
     
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  3. pushbroom

    pushbroom Road Train Member

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    Sep 1, 2012
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    Grab a test light or multimeter and see whats going on. See if there is power or ground at the light. Go back to the plug by the bumper and check there as well. Verify all the fuses and circuit breakers are okay. Let us know what you find out.
     
  4. oilfieldtrash

    oilfieldtrash Light Load Member

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    Oct 17, 2009
    Jones,Oklahoma
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    The older 379's had the headlights seperated from side to side. Each side having it's own relay and cicuit breaker.
     
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