Function Explanation (DTC Detection Outline): P0442-00:
WARNING: This page is about a different variant/trim than selected.
- The PCM closes the purge solenoid valve after diagnosing (normal) DTC P0455-00:, and seals the fuel tank. The pressure change of the fuel tank is measured by the fuel tank pressure sensor after the fuel tank is sealed. The PCM determines a temporary malfunction if the pressure change is the specified value or more after the specified time has elapsed since the pressure was measured. If the CV solenoid valve is open after determining a temporary malfunction and the pressure change (increase) of the fuel tank is the specified value or less, the PCM determines that there is an evaporative gas leakage and a DTC is stored.