P0550 - Power Steering Pressure Sensor/Switch Circuit

The ECM detected a power steering pressure sensor or switch circuit fault.

Code Overview

The ECM detected a power steering pressure sensor or switch circuit fault.

Common Causes

• Failed pressure sensor or switch
• Damaged wiring or connector
• Power steering system issue affecting pressure signal

Diagnostic Steps

1. Inspect the sensor connector and harness
2. Compare steering load to sensor data if available
3. Check for fluid leaks or steering system noise

Likely Repairs & Cost Guides

Use test results to confirm the fault before pricing the repair.

Related OBD Codes

Browse the closest code-family pages when the same fault pattern often shows up nearby.

Next Steps

Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.