So, this is a longer post but like the title says it's a 2020 Hyundai Palisade it threw all these codes at once. I changed the Thermostat to see if it took the Thermostat code away and it didn't work.

There has no change to performance, the AirConditioner is the only thing that isn't working correctly.

These are the codes it's throwing....

P0598 OBD-II: Thermostat Heater Control Circuit Low

P0076 Code: Intake Valve Control Solenoid Circuit Low Bank 1

P0079 Code: Exhaust Valve Control Solenoid Circuit Low Bank 1

P0082 Code: Intake Valve Control Solenoid Circuit Low Bank 2

P0085 OBD-II: Exhaust Valve Control Solenoid Circuit Low

P0445 Hyundai Code - EVAP System Purge Control Valve Circuit Shorted

P0037 Code: Heated Oxygen Sensor Heater Control Circuit Low (Bank 1, Sensor 2)

P0057 Code: HO2S Heater Control Circuit Low (Bank 2, Sensor 2)