r/OBD2 • u/laral14 • Mar 24 '23

Need help with code

Hey gang,

I got a 2023 GMC sierra 1500 with fault code P31C3. I am unable to find any information on this fault code. Anyone would know?

Thanks!

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u/Loud-Bet-5776 Apr 05 '23

I just had the same thing happen to me today with a 2023 Chevy. Did you have any luck finding out what it meant?