Dim headlights

2006 KIA OPTIMA
192,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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DRUMMERGUY
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I had replaced lens on my car and bulbs. but my headlights are so dim you cannot see at night. what are my options to get them bright again?


Thanks,
Jon
Jan 12, 2019 at 9:00 PM
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STRAILER
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Hello,

It sounds like you have a bad ground or a relay is getting weak. to be sure lets test the voltage at the headlight connector (yellow wire) with the lights on, it should be a little over twelve volts. here is a guide to help us get started and the headlight wiring diagrams below so you can see how the system works:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Please run down this guide and report back.
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Jan 14, 2019 at 10:46 AM