Question about Hyundai Motor 2003 Elantra

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2003 Hyundai Elantra airbag light on, cigarette lighter bad

So my airbag light is on. I realize that the best way is to have it checked by a dealer, which costs $95 just for diagnosis and I can't afford that. I am hoping experts here to give me some real help at least to know more about it. Please don't simply tell me to take it to dealership.

This car was involved an accident in 2004 before I or the previous owner purchased it. So, not sure about the details. And I am not sure whether the light has anything to do with it.

The battery was replaced, goes flat and charged up a couple of times, so the normally suggested ''disconnecting battery'' method does not work.

I also tried to press the door knob six times as suggested on a post online, which did nothing as well.

Also, not sure if it is related, the cigarette lighter is bad. It does not pop out after I press it in.

The car was very dirty as well. Some people said spills may cause that. I would not be surprised that there were spills before in the car.

How do I know if it is the sensor, or connection? Or the airbag module?
How do I find out if it is maybe just the fuse? Where is the fuse?

I am really trying to isolate the possible causes an find out a cheaper way to fix it. There is a website called myairbags.com which charges $49+$6 for ''resetting'' the airbag module. I want to give it a shot. But I need advice as to whether this kind of ''reset'' can fix my problem or not and will that fix be short-term or permanent. And I am do choose their service, how do I remove the airbag module?

Thanks a lot for your input!


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5 Answers

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  • Hyundai Master
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The light is probably on because there is no air bag installed. It probably deployed in accident and was never replaced.

Any mechanic with a scan tool can check the issue for you, does not have to be a dealership.

First you need to make sure there is actually an air bag installed in the car....it is not uncommon for people to not replace them, as they are very expensive.

Then if there is one installed, goto a good mechanic and have him hook his scan tool to it and check the codes, that is the only way you will be able to find the source of the problems. And dont go to your local auto parts store for them to check the codes...they cant check air bag or ABS code, only engine codes.

And stay away from the internet reset scam. Best stay with a local mechanic that you can goto for a problem.

Lastly...DONT TRY TO MESS WITH THE AIRBAG SYSTEM IF YOUR NOT TRAINED....MANY PEOPLE EASCH YEAR GET INJURED SERIOUSLY (AND SOME KILLED) BY IMPROPERLY WORKING ON THE AIR BAG SYSTEM...yes you can get killed by an airbag!!!!!
You are best to take it to a mechanic if you dont know how to work on it...and no offense, but your questions show that you have no experience or training in this area.

Posted on Aug 08, 2010

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  • Hyundai Master
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Sorry the price for resetting the airbag light is 26 euros including the tax , now first thing to do is to unplug the sensors under the front seats and turn ignition on then plug them in again and turn ignition on again and see what happens ,cant promise anything but who knows it does work sometimes ,but my honest advice would be to either buy a airbag resetting tool from ecutools in china or just give it to the dealer as i played for hours with a kia and couldnt do it ,Now what i think is that you have a history reading in the computer and this is throwing on the light and it just needs resetting ,i have just tried this web site and it sounds too good to be true ,Yes they may be able to do it on a vehicle built for the american market but doing it on a europeon market model ------dont think so ------because its al l encrypted software unless they wipe it and reprogramme it .And this vehicle is a hyundai so i think that the airbag software could be encrypted as well but iam not sure here as i have answered many questions on here and the same vehicle in america can have the diagnostics codes read and the emmisions programme thats on my Creader but plug it into a renault or a peugeot ,even a ford and it laughs at me ,cannot connect to vehicle .No i would just take it to a dealer then put my bit on top for my time taking it their .end of story

Posted on Aug 09, 2010

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  • Master
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There are some auto parts stores that will perform some computer diagnostics for free such as Autozone because they want your business.If you do not have an Autozone,call around to others and find out.Doesn't hurt to ask right?A fuse is not likely but the diagram of what controls what is in the user's manual.Do you have that?If not I may be able to find a downlodable one online.Has the light been on since you bought it?Was it a dealer or personal sale?If it was personal I would have paid the money for the Carfax to see what was broken/repaired from the accident.Airbags are tricky because there are at least 2 sensors in each bumper,if it has side airbags,more sensors there,and you have the activation relay(s),and a computer,etc.etc.If you see where I am getting at,there are many little things which could cause the light.So for now,at least call around and see if you can find a free computer scan and let me know.Good luck!

Posted on Aug 02, 2010

  • madsstore Aug 08, 2010

    Nobody in my area do free check on airbag lights. I do for check engine lights only. But if you could help find me a downloadable manual, it will be helpful. Could you do that?

    The light has been on since it was bought. It was a personal vehicle. It was involved in an accident, although no details available. Thank you!

  • Greg McCarthy Aug 08, 2010

    Here is a link to a forum where people have similar problems.1 suggests that hyundai computer is the only way it can be figured out,however there a couple ideas of what to check.It is NOT an official hyundai site but these forums are everywhere and can be very useful.I will look for other ideas too.

    http://www.hyundai-forums.com/t4707-air-...

    Here is another suggestion.It is for a 2004 but I bet the system hasn't changed.

    http://answers.yahoo.com/question/index?...

    Here is a whole list of bad news.

    http://www.aboutautomobile.com/Complaint...

    Many other sites suggest sensors as I did.If you want to find more,google 2003 Hyundai Elantra airbag light stays on.Good luck! Greg

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  • Master
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Hi,

The air bag light illuminates due to a trouble code stored in the computer. Until this problem is fixed the code will remain in the computer, and the light will stay illuminated. Clearing the code with a scan tool will turn the light off, but if the problem is not fixed, it will return and turn the light back on

The airbag light illuminates when the airbags have been deployed (or the module is faulty). It will remain illuminated, even after the airbags are replaced, until you have the air bag control module reprogrammed (or replaced if faulty). There are a few online air bag specialists (such as www.myairbags.com ) that can reprogram your module then ship it back to you. However, a local dealer would be who I recommend to perform this service since it is a vital part of a vehicle's safety features.

The airbag light could also comes on because the cockspring which is a winding of wire behind the steering wheel has failed.

Note - There is not no guarantee that it would fix the problem.Anyone who sells a vehicle in the U.S. MUST let the buyer know that the airbags were once deployed.

Good Luck!!

Thanks!!

Posted on Aug 02, 2010

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  • Hyundai Master
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I don't know how many models were affected, but owners of original 2001 Elantras are receiving silent recall notices for airbag rewiring underneath the passenger and driver's seat (controlling the side airbags). The reason being anything that is left under the seat can knock the connection loose. I had this happen several years ago and the dealer simply reconnected it. Then last Fall I received a notice stating they are installing a new wiring harness or some such thing to prevent this problem, which evidently has been common. Don't try to repair an airbag light problem yourself. Call Hyundai USA or your dealer and ask if this problem might apply.

I hear that in one 2004 Elantra GT, had a similar problem. Once we got about 6000km (~3000 miles) past warranty the airbag light came on. After a few weeks I took it into the dealership to have it investigated. They was told that the Air Bag control module was shot - moisture damage. Now here is the kicker, the control module is located under the cup holder. Small design flaw if you ask me. Lets put a safety critical, moisture sensitive computer module under the cup holder.

Please don't mess with air bag wiring systems, you could cause yourself serious harm if one was to deploy while you are messing around with the wiring. this is something that needs to be sorted at your dealer. You could try re-autozone and see if they can extract the fault code. If even you want to check it, review this diagrams...

2003 Hyundai Elantra airbag light on, cigarette li - a5799b8.jpg

Fig. Air Bag System (SRS) Schematics, Page 01 (2003)

6ca8e28.jpg

Fig. Air Bag System (SRS) Schematics, Page 02 (2003)

482c3c6.jpg

Fig. Air Bag System (SRS) Schematic, Page 01 (2003)

6ad858b.jpg

Fig. Air Bag System (SRS) Schematic, Page 02 (2003)
2003 Hyundai Elantra airbag light on, cigarette li - b6e2aa2.jpg>b6e2aa2.jpg


F2003 Hyundai Elantra airbag light on, cigarette li - cd4a073.jpg System (SRS) Schematic, Page 03 (2003)

cd4a073.jp2003 Hyundai Elantra airbag light on, cigarette li - 1314a17.jpg_mi

Fig. Air Bag System (SRS) Schematic, Page 04 (2003)


1314a17.jpg


Fig. Air Bag System (SRS) Schematic, Page 05 (2003)


Based on what you've told me, there is most likely no way that what they did caused an airbag related problem. My initial guess is that whatever killed the first battery, did the damage to the airbag circuit and others. Something like jumping a car with the cable reversed would do that, but installing a battery, tightening a negative cable and replacing the positive cable shouldn't damage those circuits. Both of those circuits are 'key on' circuits only, so whatever happened was a result of what happened before the work was done and when the key was already on.

Although you don't tell me what kind of vehicle yo have, you can certainly obtain a good used control unit for far less money. and even replace it yourself (if you feel confident).

We can certainly help you in understanding your car better, and provide you with information on where the parts are all located, what the codes mean and If you can clear them yourself. We also have a link to a reputable airbag parts:
http://www.airbagsolutions.com/
http://www.airbagsolutions.com/parts.aspx
http://www.airbagsolutions.com/scanlist.aspx

Be carefull with your vehicle. Good luck.

Posted on Aug 02, 2010

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