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2003 TOYOTA TACOMA
2.7L I4•RWD•AUTOMATIC•gas•3RZ-FE
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor1066Torque2197Fluid17DTC3480Battery2Maintenance0Recalls5
P0554low severityPowertrain

Power Steering Pressure Sensor Circuit Intermittent

on 2003 Toyota Tacoma 2.7L I4 · RWD

What this code means

The PCM detected an intermittent fault in the power steering pressure sensor circuit. The signal drops out occasionally, affecting idle adjustment during steering.

Symptoms

  • Occasional rough idle when turning
  • Intermittent check engine light
  • Erratic idle behavior

Common causes

  • Loose or corroded connector
  • Intermittent wiring fault
  • Faulty power steering pressure sensor
  • Failed PCM input circuit

Diagnostic steps

  1. Read sensor data and monitor for dropouts
  2. Wiggle test wiring and connector
  3. Inspect for corrosion or loose pins
  4. Test sensor signal stability
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