06 Elantra - Air bag codes and disconnected weight sensor under seat - Hyundai Forums : Hyundai Forum
 
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post #1 of 3 (permalink) Old 11-14-2018, 09:25 PM Thread Starter
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06 Elantra - Air bag codes and disconnected weight sensor under seat

A number of months back I purchased a used 2006 Elantra. In the process of diagnosing a separate issue, I discovered that the car was throwing 3 codes related to the airbags:
B1324 - WCS Communication Error
B2500 - Warning Lamp Failure
B1481 - Driver airbag resistance high

Cut to today and I'm cleaning under the driver's seat and discover a yellow wire on the floor. Completely disconnected from whatever it was once plugged into. My cursory research tells me that this cable is related to the weight sensor in seat. It now makes sense that I got those previous codes.

My question: Should I simply reconnect that cord under the seat? Any risks associated with plugging it back in, given that someone (intentionally or accidentally) disconnected it prior to my acquiring the car?

Thanks in advance!
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post #2 of 3 (permalink) Old 11-15-2018, 04:48 AM
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Quote:
Originally Posted by HomerS3 View Post
I discovered that the car was throwing 3 codes related to the airbags:
B1324 - WCS Communication Error
B2500 - Warning Lamp Failure
B1481 - Driver airbag resistance high
Given the warning light failure code, I'm wondering if the SRS warning light was actually on or not?

Quote:
Originally Posted by HomerS3
Cut to today and I'm cleaning under the driver's seat and discover a yellow wire on the floor. Completely disconnected from whatever it was once plugged into. My cursory research tells me that this cable is related to the weight sensor in seat. It now makes sense that I got those previous codes.
That would only account for one of the three codes.

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Originally Posted by HomerS3
My question: Should I simply reconnect that cord under the seat? Any risks associated with plugging it back in, given that someone (intentionally or accidentally) disconnected it prior to my acquiring the car?
You could just plug it back in and see what happens with the WCS code. Regardless of what happens though you'll still need to deal with the 1481 and possibly the 2500.

BTW, I believe there was a recall in North America relating to the Weight Classification Sensors on Elantra. If simply plugging the harness connector back in doesn't clear that code you might want to ask your dealer about the recall if you live in that region of the world (BTW, you should really take the time to fill in your user profile, then we'd all know where you are). I don't know the details of the recall since I'm in the UK, but maybe our Hyundai dealer tech, @sbr711, will stop by the thread and advise you.

Last edited by AUTOSPARK; 11-15-2018 at 04:52 AM. Reason: Recall
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post #3 of 3 (permalink) Old 11-18-2018, 05:29 PM
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MarioT
I might have another explanation you won't like for a used Elantra if you don't know its real background history.


Is the SRS Lamp lighting at all while starting the car? Should flash a few times while testing the system, then turn steady off/on depending on result.

If not, someone might have unplugged it to hide the fact that the Airbag system is defective, or was even deployed once and repacked.
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