P0453 - Evaporative Emission System Pressure Sensor/Switch High - DTC Chart

P0453 - EVAPORATIVE EMISSION SYSTEM PRESSURE SENSOR/SWITCH HIGH - DTC CHART

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 .