DTC P0452 - EVAP System Pressure Sensor/Switch Low

DTC DESCRIPTION P0452 - EVAP SYSTEM PRESSURE SENSOR/SWITCH LOW

Description: This DTC sets when the FTP signal average is less than a minimum allowable calibrated parameter.
Possible Causes: Contamination internal to the FTP sensor connector FTP circuit open FTP circuit short to ground FTP circuit short to SIGRTN VREF circuit open Damaged FTP sensor
Diagnostic Aids: An FTP PID reading less than 0.25 volts with the ignition ON, engine OFF or ignition ON, engine running indicates a concern is present.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST HX .