Does it read this code on other OBDII tools?
If no;
a: the testing center has an issue with their OBDII reader
b: The OBDII port in your car has a loose pin, use an OBDII extender cable
https://www.amazon.com/s?k=obdii+ext...nb_sb_ss_i_7_6
If yes;
You have a problem in the CANbus, likely a loose pin/broken wire in a harness connector somewhere.
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2020 GMC Canyon Denali Duramax, 2021 Forester Sport, 2000 Subaru Legacy B4 RSK 5MT (JDM Import) and random 86 chassis rebuilds....