Conditions for Setting the DTC
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
P0443
The ECM detects the EVAP purge solenoid valve control circuit is open within 0.25 s.
P0458
The ECM detects the EVAP purge solenoid valve control circuit is shorted to ground within 0.25 s.
P0459
The ECM detects the EVAP purge solenoid valve control circuit is shorted to voltage within 0.25 s.