DTC P2401 Evaporative Emission System Leak Detection Pump Control Circuit Low; DTC P2402 Evaporative Emission System Leak Detection Pump Control Circuit High: Description
WARNING: This page is about a different car, the 2007 Toyota Tacoma. However, it is still accessible from the selected car via links, so may be relevant.
The circuit description can be found in the EVAP System (See EVAP SYSTEM ).