Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means the car's computer is having trouble reading the oil pressure. It's like when you can't see how much juice is left in your cup because the cup is too dark.
The P0520 code is triggered when the Powertrain Control Module (PCM) detects a malfunction in the engine oil pressure sensor/switch circuit.
The engine oil pressure sensor/switch monitors the oil pressure in the engine and sends this information to the PCM. If the PCM receives a signal that is outside the expected range, it will set the P0520 code.
• Check Engine Light is on
• Engine may run rough
• Oil pressure gauge may read zero or erratically
• Faulty oil pressure sensor
• Damaged wiring or connector
• Low engine oil level
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the P0520 code.
• Inspect the oil pressure sensor and its wiring for damage.
• Check the engine oil level and condition.
• Replace the oil pressure sensor.
• Repair or replace damaged wiring or connectors.
• Change the engine oil if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$100 - $200
Moderate
• Chevrolet Silverado
• Dodge Ram
• Ford F-150
• Regularly check and maintain engine oil levels.
• Perform routine oil changes.
• Inspect wiring and connectors periodically.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Regular maintenance can prevent such issues.
Check with your vehicle manufacturer for warranty coverage on engine sensors.
The P0520 code has been a common issue in vehicles with electronic oil pressure sensors, particularly as vehicles age.
Moderate – It is important to address this issue to prevent potential engine damage.
Ignoring this issue can lead to engine damage, which may not be covered under warranty if neglected.
• Engine at operating temperature
• Vehicle in park or neutral
The engine oil pressure sensor is typically located near the oil filter or on the engine block.
Q: Can I drive with a P0520 code?
A: It's not recommended to drive for long periods with this code as it may indicate low oil pressure, which can damage the engine.
Q: How can I reset the P0520 code?
A: After repairs, you can reset the code with an OBD-II scanner or by disconnecting the battery for a few minutes.
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