headlight short

1994 ISUZU RODEO
1,923,456 MILES • 2.3L • 6 CYL • 4WD • AUTOMATIC
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FUZZYFLY
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  • 4 POSTS
My headlights go out when i turn on my right blinker, and some times come back on when i use my left blinker. How can i fix this problem?
Jul 12, 2017 at 12:10 AM
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CARADIODOC
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That is a common symptom of a bad ground wire. You may be able to prove it by turning on the head lights, then observing the right one is not at full brightness. Now remove the right front turn signal bulb and you will see the head light go off too. All the bulbs in one corner typically share a common ground wire. When that is broken, current going through the head light bulb cannot get back to ground to complete its path, but it finds an alternate path backward through the running light bulb, then over to the running light on the left side, and then to ground. Removing either bulb breaks the circuit, then the right head light will go out.
Jul 12, 2017 at 12:56 AM
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FUZZYFLY
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TThank You very much this was very helpful
Jul 30, 2017 at 11:31 AM
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STRAILER
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Please let us know what happens.

Cheers, Ken
Jul 31, 2017 at 12:26 PM