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Home >> Ford >> 2017 >> Focus S, Standard Trans, Gas/Ethanol >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) - DTC P0210 - P0607 >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> P0452 - EVAP System Pressure Sensor / Switch A Circuit Low
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P0452 - EVAP System Pressure Sensor / Switch A Circuit Low

P0452 - EVAP SYSTEM PRESSURE SENSOR / SWITCH A CIRCUIT LOW

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 .
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