DTC P2401 Evaporative Emission Leak Detection Pump Stuck OFF; DTC P2402 Evaporative Emission Leak Detection Pump Stuck ON: Description
WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
The description can be found in the EVAP (Evaporative Emission) System (see EVAP SYSTEM ).