P0453 - EVAP System Pressure Sensor / Switch A Circuit High

P0453 - EVAP SYSTEM PRESSURE SENSOR / SWITCH A CIRCUIT HIGH

Description:	This DTC sets when the fuel tank pressure (FTP) sensor signal average jumps above a minimum allowable calibrated parameter.
Possible Causes:	Contamination internal to the FTP sensor connector FTP circuit open FTP circuit short to voltage VREF circuit short to voltage SIGRTN circuit open Damaged FTP sensor
Diagnostic Aids:	An FTP voltage PID reading greater than 4.85 volts with the ignition ON, engine OFF or with the 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 .