low beam lights dont work

1993 GMC SUBURBAN
155,000 MILES • V8 • 2WD • AUTOMATIC
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LISK407
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I own a '93 GMC suburban 1500 2wheel dr. w/350 engine. My low beam headlights went out, my high beam work fine. I replaced the switch a few years ago when similar problems happened, could something else have gone bad since the lights flickered a few days then out completely?
Jan 18, 2011 at 1:00 PM
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JDL
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With the headlamp switch on, check for voltage and ground at the headlamp connector. Lite green wire is voltage for high-beam, tan wire is voltage for low-beam. Black wire is ground.

The diagram shows dual headlamps on both side and single, don't be confused, the wiring colors for voltage and ground, are the same.
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Jan 18, 2011 at 8:58 PM