Ford P0550 OBD-II Trouble Code Definition: P0550 Power Steering Pressure Sensor Circuit Malfunction P0550 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0550 Power Steering Pressure Sensor/Switch Circuit What does the code mean? OBD-ii Code P0550 definition: Power steering pressure (PSP) sensor is installed to the power steering high-pressure tube and detects a power steering load. This […]