Question about Hyundai Motor 2003 Sonata

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Screwed up electronics in 2003 Hyundai Sonata

So the radio in my sonata went out a few months ago. I replaced the fuse, problem solved. Last night my battery died, and I had to replace it also considering that this was happening ALOT. Since the new battery, my check battery light wont go off, the trip odometer resets everytime I turn the car on, the radio and the clock are dead, and the gas gauge kinda flickers, but goes back to normal after a minute or so. I checked the 10A and 15 fuses, put new ones in, to no avail. Also, the door locks are now messed up. Any ideas? Thanks,
N.

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  • missj16 May 10, 2009

    I can't find the fuse box for the radio. I checked the one under the hood but it do not have a fuse for the radio and clock.

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Sound like the vehicles ECU (electronic control unit) is acting up. All electronics are controled through this module as well as the features your car is programed with. Many manufacturers have different names for these modules but they all perform the same tasks. Your best bet is to bring it to a dealer where they can hook up a computer whith their diagnostic software in it to pinpoint the problem. All electronics in vehicles are controled by modules which are like mini computers.

Posted on Jan 25, 2009

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on Oct 24, 2013 | Hyundai Cars & Trucks

1 Answer

2003 hyundai sonata gas fill problems


I would take the car to your nearest Autozone and they can scan your computer for free, this has to be some sort of problem with your gas evaporitive system

Sep 16, 2012 | 2003 Hyundai Sonata Base

1 Answer

Hi - Last night while driving at night I realized my headlights weren't on - the high beams come on but no low beams - it is a 2005 Hyundai Sonata - any ideas why? Or how to fix it? Thanks Kathy


it might be that one was out and not noticeable intel the other one went out you can check that by lookingin to the light bulb it self and check fuses and the relay

Aug 11, 2009 | Hyundai Sonata Cars & Trucks

2 Answers

Hyundai Sonata 2003 - Engine Light - Code P0130


i would because if there ever really is a problem you won't know because the light is already on

Nov 19, 2008 | Hyundai Motor 2003 Sonata

1 Answer

In my Sonata I went out to start it and it just made clicking noises. What does that mean?


This sounds like your starter or starter relay went. Check fuses to make sure they are all good.

Aug 22, 2008 | Hyundai Motor 2003 Sonata

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