P0550

Power Steering Pressure Sensor Circuit Malfunction

Severity: Low Fuel & Air Metering Generic OBD-II Code Est. Repair: $60 - $250

Usually safe to drive short-term, but diagnose soon.

Quick Answer

P0550 means “Power Steering Pressure Sensor Circuit Malfunction.” Severity: Low. Estimated repair cost: $60 - $250. Most common sign: CEL.

What Does P0550 Mean?

Power steering pressure sensor circuit fault — on hydraulic-assist systems, the ECM uses this to bump idle under steering load.

Common Symptoms

CEL
Possible idle dip when turning the wheel at a stop

Possible Causes

Faulty PSP sensor
Wiring issue
Low power steering fluid affecting readings

How to Fix P0550 – Repair Guide

Check power steering fluid level
Test sensor signal
Replace sensor if faulty
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Budgeting for This Repair?

A typical P0550 repair runs about $60 - $250. If you'd rather spread the cost over time, estimate the payment with our free sister tool: Car Finance Calculator (50-state sales tax, trade-in equity, full amortization).

Recommended OBD2 Scanners & Tools

To read and clear this code yourself, you need a reliable OBD2 scanner. Here are top-rated options:

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Disclaimer: Information is for educational reference only and does not replace professional diagnosis. Actual causes and costs vary by vehicle make, model, year and condition. Always verify with a qualified technician.