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P0520 — Engine Oil Pressure Sensor/Switch Circuit

Oil pressure sensor or switch has a circuit fault. May not mean oil pressure is actually low.

Severity: HighRepair: $20-$300Difficulty: Easy

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Common symptoms of P0520

Common causes of P0520

Repair cost & difficulty

Typical cost to fix P0520: $20-$300 · Difficulty: Easy

Pro tip: IMPORTANT: Verify actual oil pressure with a mechanical gauge before assuming it's just the sensor. Low oil pressure can destroy an engine in minutes.

Vehicles commonly affected

All makes

Related trouble codes

P0521P0522P0524

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ScanFixAI is a diagnostic aid, not a substitute for professional repair. Cost estimates are typical ranges and vary by vehicle and region.