P0452 - Evaporative Emission System Pressure Sensor/Switch Low - DTC Chart

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P0452 - EVAPORATIVE EMISSION SYSTEM PRESSURE SENSOR/SWITCH LOW - DTC CHART

Description: This DTC sets when the fuel tank pressure (FTP) sensor signal average drops below a minimum allowable calibrated parameter.
Possible Causes: Contamination internal to the FTP sensor connector FTP circuit open VREF circuit open FTP circuit short to ground FTP circuit short to SIGRTN Damaged FTP sensor
Diagnostic Aids: An FTP voltage PID reading less than 0.22 volt in 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 .