Toyota P0456 – Meaning, Causes, Symptoms, & Fixes
Toyota Code P0456 Definition Evaporative emission control system leak (small). Toyota Code P0456 Meaning The evaporative emission control (EVAP) system in your Toyota prevents fuel vapors from escaping into the atmosphere. The fuel vapors from the fuel tank are absorbed and stored by charcoal pellets in the charcoal canister. The vent control valve is controlled by...