2005 GMC Sierra Hybrid fault codes

[polishpickles]

Hi guys,

 

Bit of a background:

 

- bought my truck beginning of October this year

- 1 week later check engine light comes on

- thought maybe it was a gas cap because after I filled it up, the next day the light disappeared

- light was gone for 2 weeks and last weekend it came back on again

- took the truck in to get the brakes done

- truck was scanned with 2 different scanners, they came up with these codes: P1a32 and P1a43

- tech did not get a description on his scanner for those 2 codes

- I tried searching online but had no luck finding them

- since the scan today, check engine light is gone

 

Can another shop re-scan the fault codes even though the check engine light is not on anymore?

Anyone has any rough idea what these could be related to and if they're important (I wouldn't care much if it had to do with emissions, or O2 sensors, etc).

 

Also, my air bag light is on and says "service air bag". The tech didn't have enough time to scan the truck today for that problem and figure out if it's a sensor thing and how much it would cost to fix that. Any ideas?

 

Thank you.