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P0552 Powertrain

Power Steering Pressure Sensor Circuit Low Input

PS pressure sensor signal voltage below threshold — open, short to ground, or sensor failure. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.

Affected components

  • Power steering pressure sensor
  • Ps sensor wiring

Common causes

  • High likelihood: Sensor circuit shorted to ground or open
  • Low likelihood: Connector pins corroded - high contact resistance
  • Low likelihood: Harness chafing through insulation

Diagnostic notes

  • The malfunction indicator lamp may illuminate

Related codes

Sources

Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.

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