Air Bag Scan Codes

bigbipper · July 3, 2014

Hello All,

The battery died a few weeks back in my 2005 Suburban. I jumped the battery and then it threw a "Service Airbag" message and light. I scanned the codes and I got BOTH a B0100 and a B0103.

I see that they are for both front sensors. I mean...what are the chances that BOTH just went bad?

Any suggestions for I replace both?

Thanks so much, guys...and gals.

gmtech4 · July 5, 2014

\Not sure where you mentioned the part about the radio, it was not in this thread. Same for the part about resetting the codes, and they came right back. When I post a question on multiple sites, I compose the post in notepad, then paste it on each site. That way all forums get the exact same post, and I don't forget to include something on one forum.

If the charging system is working correctly it may be able to bring the battery back. I say "may" because not all batteries will come back from being run flat. But that is why new ones come with warranties. Worst thing you can ever do when diagnosing something is to assume it must be working, its new. If that was the case 100% of the time, the part would not require a warranty of any kind.

Follow the wires back from the sensors and unplug, inspect, clean and reconnect all connectors in those circuits. That is about the limit for the backyard mechanic on troubleshooting air bag circuits. Personally I would not take anyone's advice beyond this point on servicing the air bag circuit, and I am a licenced mechanic who started down this road in 1977. Come to think of it, I just recalled reading a popular mechanics magazine article that talked about this way in the future safety thing call an air bag.

1979 here doug ya old fart lol !!!