Airbag light - JeepForum.com
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post #1 of 13 Old 10-01-2019, 05:49 PM Thread Starter
Mackinback
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Airbag light

So the issues are starting to mount on my 13' Overland while I cross over 120k...
I'm now starting to see the Airbag light one periodically.. It never really stays on. But I'll hear it chime, light one for a minute or 2 and then it's off again.
Maybe my forum searching skills suck, but I wasn't turning up much for WK2's.
Does anybody have any insight as to what the cause is? The fact it's only on for small amounts of time makes me feel like it's like a short somewhere?
I'm going to try my reader on it tomorrow and see if anything comes up.

MacK

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post #2 of 13 Old 10-01-2019, 06:19 PM
ColdCase
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You will need a reader that reads airbag faults, not all of them do. There are near 100 fault codes. Many of these are Squib shorts and opens which are set if its faulted for more than 3 second or so, resets when resolved for three seconds or so. Does it happen only when you have a passenger?

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Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
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post #3 of 13 Old 10-01-2019, 07:04 PM Thread Starter
Mackinback
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Quote:
Originally Posted by ColdCase View Post
You will need a reader that reads airbag faults, not all of them do. There are near 100 fault codes. Many of these are Squib shorts and opens which are set if its faulted for more than 3 second or so, resets when resolved for three seconds or so. Does it happen only when you have a passenger?
No, it has happened with only me.. But is more frequent when passengers are in. Does the light need to be on for the reader to read a code?
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post #4 of 13 Old 10-01-2019, 08:00 PM
ColdCase
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The codes are stored as inactive for about 100 ignition cycles.

I was born with nuttin' and I still have most of it
Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
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post #5 of 13 Old 07-12-2020, 09:20 AM Thread Starter
Mackinback
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Reviving this thread as I never dug any further (and my cheap scanner does not read those codes).. And holy smokes I did not realize I posted this back in October!

Anywho, while doing my airspring work I checked the codes for the Airbag light.. Left Side Seat Throax Squib 1 Circuit Low.. Say what?!

I was doing some digging on the internet last night and next thing I know I am watching a video on replacing the Clock spring.. I guess the clock spring has 3 or 4 contacts that could fail.
So I may have gotten off track as everything seems to function on my steering wheel. I'm not sure? I mean the code does say 'SEAT'.. But maybe someone has some input to add.


Thanks,
MacK
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post #6 of 13 Old 07-12-2020, 10:11 AM
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This is from my 2013 Dodge Durango Tech Authority FSM. Should be the same as the 2013 WK2 Jeep. See if you can view the PDF attachment.

B1C27-LEFT SIDE SEAT THORAX SQUIB 1 LOW
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File Type: pdf B1C27-LEFT SIDE SEAT THORAX SQUIB 1 LOW.pdf (413.3 KB, 3 views)

2014 Grand Cherokee Overland V6
2008 Dodge Durango Limited 5.7L
2002 Chrysler 300m Special 3.5L
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post #7 of 13 Old 07-12-2020, 11:09 AM Thread Starter
Mackinback
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Hey Ronibo -

Thanks for the info.. So it is seat related with what I am guessing is probably a frayed wire in the seat.. OY! I can check the connectors just to be sure.
I wonder what is involved if it is indeed a frayed wire? Hmm

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Originally Posted by JeepRonibo View Post
This is from my 2013 Dodge Durango Tech Authority FSM. Should be the same as the 2013 WK2 Jeep. See if you can view the PDF attachment.

B1C27-LEFT SIDE SEAT THORAX SQUIB 1 LOW
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post #8 of 13 Old 07-12-2020, 11:13 AM
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Could be wiring. It's related to the Drivers Side air bag that's part of the seat.

2014 Grand Cherokee Overland V6
2008 Dodge Durango Limited 5.7L
2002 Chrysler 300m Special 3.5L
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post #9 of 13 Old 07-12-2020, 06:00 PM
Bilko
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Have you had rear seat passengers in the car? The airbag light can come on if people with big feet accidentally kick the connectors under the front seat. Its worth checking the connectors under the front seats are firmly mated before spending lots of $$ on diagnostics.
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post #10 of 13 Old 07-14-2020, 03:09 AM Thread Starter
Mackinback
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No doubt and I'm hoping this is the case.. I didn't fine anything disconnected but wanted to unplug everything and plug back in.
Is this something that should be done with battery disconnected?

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Originally Posted by Bilko View Post
Have you had rear seat passengers in the car? The airbag light can come on if people with big feet accidentally kick the connectors under the front seat. Its worth checking the connectors under the front seats are firmly mated before spending lots of $$ on diagnostics.
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post #11 of 13 Old 07-14-2020, 06:52 AM
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Originally Posted by Mackinback View Post
No doubt and I'm hoping this is the case.. I didn't fine anything disconnected but wanted to unplug everything and plug back in.
Is this something that should be done with battery disconnected?
I definitely would only ever connect/disconnect any yellow airbag/restraint connector with a disconnected battery. In addition to the general unease I would have, some cars would throw an airbag code if something was disconnected with power on, and would need an appropriate tool to reset the code. (I think my Crossfire was that way)
So disconnect battery, wait a bit, (I typically make sure to tap the brake pedal or something to drain any residual charge in the system.
do whatever work
reconnect battery once everything is reconnected.
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post #12 of 13 Old 07-14-2020, 07:34 AM
ColdCase
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Yeah, anytime you get close to an airbag or tensioner, disconnect the battery ground cable and wait 5-10 minutes. Its also a good idea to wear eye protection.
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I was born with nuttin' and I still have most of it
Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
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post #13 of 13 Old 07-14-2020, 09:41 AM
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Originally Posted by ColdCase View Post
...Its also a good idea to wear eye protection.
Good point! In general as well. Now that I am in permanent reading glasses age, I rarely grab safety glasses. I always used to, maybe I should make a new habit of putting the larger ones over them.
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