Hyundai Tiburon AC radio lights out of commision

Tiny
JOSHMAUGER
  • MEMBER
  • 2003 HYUNDAI TIBURON
  • 6 CYL
  • FWD
  • MANUAL
  • 160,500 MILES
I recently had to jumpstart my Hyundai Tiburon Gt 03 when the lights were left on. The cables were attatched improperly and sparked and there was a pop sound. The cables were reattatched and the car started and ran fine. But when I got in the car I discovered the air conditioning, radio and interior lights were not working. The fuses and relays are fine. Is there a good chance its a short in a ground wire? Thanks for any help.
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Friday, June 24th, 2011 AT 11:50 PM

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Tiny
CARADIODOC
  • EXPERT
Ground wires go to ground; they can't be shorted besides. If a 12 volt feed wire were shorted, first of all that doesn't happen by momentarily connecting the cables backwards, and it would cause a fuse to blow. Did you check fuses under the hood and inside the car? The interior light circuit is often used for the radio's memory circuit for the station presets and clock. Most models will not turn on if that memory circuit is dead.
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Saturday, June 25th, 2011 AT 2:10 AM
Tiny
JOSHMAUGER
  • MEMBER
Yes, as I stated In the original question, all the fuses are good and I am still hoping for some answers. Thanks for the reply and any more useful info.
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Saturday, June 25th, 2011 AT 3:16 AM
Tiny
CARADIODOC
  • EXPERT
Do you have some really large fuses under the hood? Some in the range of 30 to 50 amps, and a larger one that's bolted in? If not, your car might still use fuse links which are wires built into the rest of the harness. Those wires are smaller in diameter so they are the weak link in the chain, and the insulation will not burn. They take a few seconds to burn open so hooking the jumper cables backwards for just a split second shouldn't have hurt them, but if you do have them, they are tested by pulling on them. If they act like a wire, they're good. If they act like a rubber band, they're bad. Typically they are bundled together and not covered with tape. They will be dull green, white, gray, orange, or black. The color denotes their current rating.

If you don't have fuse links, the next logical suspect would be the Body Computer. They run the interior lights but I've never seen one involved with the radio. In fact, your radio might have a red 10 amp fuse plugged in on the back of it.
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Saturday, June 25th, 2011 AT 4:49 AM

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