Code Definition

P0553 — Power Steering Pressure Sensor Circuit High Input

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0553

P0553 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P0553 is stored, the module has detected a signal or supply voltage higher than the expected operating range; and a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0553 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The P0553 fault code is set when the Engine Control Module (ECM) detects a higher than expected input signal from the power steering pressure sensor circuit. This sensor is critical in the power steering system as it measures the hydraulic pressure and communicates this data to the ECM. The ECM uses these readings to adjust the level of power steering assist. A high input signal could indicate an electrical problem, such as a short to power in the sensor circuit, a malfunctioning sensor, or issues with the wiring or connectors. This condition can lead to irregular or excessive power steering a...

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