P0450

DTC P0450 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR MALFUNCTION





CIRCUIT DESCRIPTION
The vapor pressure sensor and VSV for vapor pressure sensor are used to detect abnormalities in the evaporative emission control system.
The ECM decides whether there is an abnormality in the evaporative emission control system based on the vapor pressure sensor signal.
DTC P0450 is recorded by the ECM when the vapor pressure sensor malfunction.





DETECTING CONDITION

WIRING DIAGRAM
Refer to Evaporative Emission Control System Malfunction.










INSPECTION PROCEDURE

HINT:
- If DTC P0441, P0446 or P0450 is output after DTC P0440, first trouble shoot DTC P0441, P0446 or P0450.
- If no malfunction is detected, troubleshoot DTC P0440 next.