2013 Suburban LTZ Service Air Bag, DTC B0021 Symptom 03

[dnt1010]

2009 Tahoe I have the service air bag message and a red airbag icon on the dash. My Innova code reader picks up nothing. I stopped by Oreilly and theirs could not read anything either.
Question: what are you guys using to pull the SRS codes??

 

[George B]

2009 Tahoe I have the service air bag message and a red airbag icon on the dash. My Innova code reader picks up nothing. I stopped by Oreilly and theirs could not read anything either.
Question: what are you guys using to pull the SRS codes??

A Chinese knockoff tech2