Question about Hyundai Motor 2004 Sonata
When headlights are off I brake and the lights work fine but then if I turn my healights on and brake the only light that turns on is the top one. I already checked bulbs and a mechanic checked the fuses and said it keeps burning the fuse to the brake lights. He said he needed to run a diagnostic to see where the problem is but I dnt have the money now. Is there another way of finding out what it is?
YES -- process of elimination. Obviously there's a short circuit in the Brake/Headlight circuits - right? Blown fuse(s) is/are evident of this -- would you agree? Which fuse(s) is/are blowing? An analysis tells you that the only time a fuse blows is when the headlamps are turned on -- correct? Otherwise, brake lights work normally -- right? OK. Head lamps have relays which turn them on. Here's a wiring diagram of the 2000 Hyundai Sonata (NOT the Jeep Grand Cherokee)
It would appear the problem is with one or more bulbs or sockets or both. As you many notice, there are no connections between the headlamps and brake lamps except the parking lProblems with brake lights on my 2000 Jeep Grand C - c7068ec.gif share the bulbs/sockets)
When the headlamps are turned on, so does the tail lamp relay. As you can see, these bulbs/sockets are 'DUAL' filament to ground (series-parallel circuit). Just a guess here - the short is in one of the lower rear brake/parking lamp bulbs/sockets.... just a guess.
Posted on Jun 20, 2009
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Posted on Jan 02, 2017
Autozone has a fix kit for under 20.00 that will if done like the directions say will return the lens to near perfect condition.
Posted on Oct 02, 2009
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