Power Steering Pressure Sensor/Switch Circuit Low

Where it lives

For P0552, the circuit described runs through the sensor. The description of P0552 reports a fault at the sensor.

Check these first

• Power steering pressure sensor signal pulled low
• A short to ground in the pressure sensor circuit
• Corrosion or water in the pressure sensor connector
• A failed pressure sensor inside the power steering unit
• Low power steering fluid starving the pressure signal

What to do next

1. Check the power steering fluid level and condition
2. Inspect the power steering pressure sensor connector for corrosion
3. Test the pressure sensor signal wire for a short to ground
4. Read power steering pressure live data
5. Replace the power steering pressure sensor if the signal stays low
6. Clear the code and retest

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