Question about Hyundai Motor 2003 Elantra

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Lots of bulbs burning out

Hi. I just bought a used 2001 Hyundai Elantra. (as is) Seems many of the lights are burned out or not working. R/F hi/lo beam. R/F signal lamp, both side marker lights and a few interior lights. The carfax report did show that it was taken to the dealer for suspect electrical problems but was serviced at the dealer 2 or 3 more times with no mention of electrical malfunctions. I had a 2001 elantra before and had the same problem with headlights but not any of the other lights. Heard about others with same problem. Also the check engine light came on soon after purchase. Gives a PO422 code. Is there a consistent part malfunction associated with this code or could it be part of an electrical problem, also? Thanks very much in advance for any help you might have with these problems. Have a nice Holiday!

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  • calbaby Jan 25, 2009

    I have the same problem with the headlights burning out but it's on a 2003 Elantra. Any idea?



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I had a similar problem. My mechanic said it was a bad voltage regulator, now I've had 7 years with no bulbs failed

Posted on Jul 24, 2009

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Catalytic converters go bad on these from time to time. We typically find a lot of cracked manifolds between the exhaust ports, or bad flex pipes will cause this code sometimes if the leaks are real small (pinhole size).

Far as the headlights... I've never seen that problem at the dealership with the lights. I'd say with the headlamp/turn signal you should check the connector over to be sure you don't have an issue with corrosion. On everything else, start at the bulbs and work your way back to the fuses till you find where the voltage loss is.

Posted on Nov 23, 2009


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