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P0552low severityPowertrain

Power Steering Pressure Sensor Circuit Low Input

on 2012 Ford Focus 2.0L I4 GDI · FWD

What this code means

The PCM detected a low voltage signal from the power steering pressure sensor. This sensor helps adjust idle when the steering system loads the engine.

Symptoms

  • Rough idle when turning
  • Check engine light on
  • Possible stalling

Common causes

  • Short to ground in sensor wiring
  • Faulty power steering pressure sensor
  • Corroded connector
  • Failed PCM input circuit

Diagnostic steps

  1. Read sensor voltage with scan tool
  2. Inspect wiring for shorts to ground
  3. Check connector for corrosion
  4. Test sensor with known good reference

Other Powertrain codes on this vehicle

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