My 2006 GMC Sierra 1500 pick-up had the "Service Airbag" warning light come on and after a bit of research I decided it was time to look at a code reader. The quote for having a shop read the code was about $50 and the airbag sensor retailed for $275. I had the ZR13 up and running in no time at all. The code was B0103, front airbag sensor 2 on the passenger side. I replaced the sensor with an after market sensor for a third of the price within a half an hour. No more "Service Airbag" warning light and I used the ZR13 to confirm the problem was resolved. It's a great tool at a very reasonable price! HF even honored the $189.99 price shown in their online images!!