DTC P2539 - Low Pressure Fuel System Sensor Circuit

2021 Ford Edge SE, 4WDSECTION DTC P2539 - Low Pressure Fuel System Sensor Circuit
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P2539 - LOW PRESSURE FUEL SYSTEM SENSOR CIRCUIT

Description:  This DTC sets when the PCM does not detect a change in the fuel delivery pressure switch PID state after engine shutdown.
Possible Causes: 
  • FDPS circuit open
  • FDPS circuit short to ground
  • Disconnected fuel delivery pressure switch
  • Damaged fuel delivery pressure switch
Diagnostic Aids: 
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST MD .
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.