Service Buddy
Electrical

Code P0520

Engine Oil Pressure Sensor Malfunction

Plain English Meaning:Oil pressure reading incorrect

⚠️

Yellow: Drive with Caution

May hide real oil issues

P0520 Symptoms

  • Warning light false readings

Most Common Causes of P0520

1Sensor failure wiring issue

P0520 Repair Playbook

Required Mechanic Tests

A qualified shop should perform these tests before replacing any parts to ensure they aren't guessing:

Check pressure sensor

Typical Fix Paths & Estimated Costs

Replace sensor $100–$300