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Check engine light · Engine codes

P0520: Engine Oil Pressure Sensor/Switch A Circuit.

Powertrain · GenericP0520
Get it fixed soon
What it means

The oil pressure sensor has an electrical fault.

How serious

Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.

Where a shop starts

Failed oil pressure sensor. Then: wiring fault.

Owners named P0520 in 19 complaints to the U.S. government, most often on the Jeep Cherokee.

Cars owners report it on

Complaints that name P0520, by model. Raw counts, not a failure rate: popular models get more complaints.

The details

What P0520 means

The oil pressure sensor has an electrical fault. Check the real oil level before driving on.

Can I drive with P0520?

Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.

16% of the owner complaints that name P0520 also say the car loses power or goes into limp mode. A complaint can describe more than one problem, so this doesn't prove the code caused it.

Common causes of P0520
  • Failed oil pressure sensor
  • Wiring fault

A shop should confirm the cause with a scan and tests before replacing parts.

What owners describe
  • Loses power or goes into limp mode: 16% of complaints
  • Rattles or knocks: 11% of complaints
  • Shakes, runs rough or misfires: 11% of complaints
  • Transmission slips or shifts hard: 11% of complaints

Share of complaints naming the code whose text also mentions each problem.

Model years that report P0520 most

2014 Jeep Cherokee (6), 2014 Jeep Grand Cherokee (2), 2014 Dodge Durango (2), 2014 Jeep Wrangler (2).

Related codes

P0521 P0523 P0524 P052E P051B P0513 P050D P050B

Quick answers

What does P0520 mean?

Engine Oil Pressure Sensor/Switch A Circuit. The oil pressure sensor has an electrical fault. Check the real oil level before driving on.

Can I drive with P0520?

Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.

What causes P0520?

Failed oil pressure sensor; Wiring fault.

Counts: NHTSA owner complaints whose text names P0520. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.

Updated · Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data

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