P0522 OBD-II Trouble Code: Engine Oil Pressure Sensor/Switch Low Voltage

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0522 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0522 code

P0522 is a diagnostic trouble code (DTC) for "Engine Oil Pressure Sensor/Switch Low Voltage". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P0522 DIAGNOSTIC Get a fair and transparent estimate upfront

P0522 code definition

P0522 is the universal OBD-II code for Engine Oil Pressure Sensor/Switch Low Voltage. Related codes include P0520, P0521, P0522, and P0524.

What the P0522 code means

The oil pressure sensor sends a message to the PCM (Powertrain Control Module), which gets transmitted in the form of a voltage reading. A vehicle will store P0522 when that message tells the PCM that the sensor is indicating too low of an oil pressure value.

What causes the P0522 code?

The possible sources of this fault code include:

  • A faulty oil pressure sensor
  • An open or short in the sensor circuit wiring
  • A faulty connector or bad connection in the oil pressure sensor circuit
  • Low oil, the wrong type of oil, a blockage in an oil passageway

What are the symptoms of the P0522 code?

Aside from the vehicle storing this trouble code, you may notice a low oil pressure gauge reading or illuminated oil pressure light. The engine may fail to start, or the vehicle may stall in the middle of driving.

How does a mechanic diagnose the P0522 code?

Your technician may perform the following steps to diagnose this problem:

  • Clearing all codes and test driving the vehicle, observing live scanner data to see if the code returns

  • Inspecting the oil level and condition

  • Checking that the correct oil is being used and that the oil filter does not have a blockage

  • Visually inspecting the oil pressure sensor or sending unit’s wiring and connectors to check for damage, loose wires, or burned areas

  • Using an ohmmeter to test the oil pressure sensor to ensure the voltage matches manufacturer specifications

  • Checking the oil pressure with a mechanical oil pressure gauge, as well as comparing that reading to the sensor reading

Common mistakes when diagnosing the P0522 code

While oil pressure sensor replacement is often an appropriate fix, if the damage is too far gone this can be merely a bandage on a problem that has already affected the engine. Replacing the sensor may get rid of the code but if the more serious issues aren’t addressed then the fix won’t last.

How serious is the P0522 code?

This fault code can be minor, or very serious, depending upon the source of the problem. In many cases the malfunction is electrical in nature – either a short in the wiring or other damage interrupting the signal, or a bad oil pressure sensor/sending unit. If, however, the code has been stored for a long period of time and the oil has actually been low during this time, catastrophic engine damage could occur.

What repairs can fix the P0522 code?

Things your mechanic may do to address this code include:

Additional comments for consideration regarding the P0522 code

Whenever a vehicle shows indications of an oil pressure problem, you should always take it seriously and begin investigating the cause immediately. Checking the oil for level and color is a quick, easy way to make sure that there isn’t an actual oil shortage if your oil light has come on.

The good news is that P0522 most often reflects an electrical or sensor/sending unit problem, and as soon as the issue is rectified the code – as well as the low oil gauge indicator – should resolve itself. Checking your oil, and having it changed, routinely can prevent serious engine problems even if you should encounter this code.

Need help with a P0522 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6220.

trouble codes
P0522
Check Engine Light

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0522 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.8/5

Number of Reviews

4,810

Rating Summary
4,424
187
47
28
124
4,424
187
47
28
124

Joel

19 years of experience
741 reviews
Joel
19 years of experience
Acura RL - Check Engine Light is on - Jacksonville, Florida
very knowledgeable and precise. able to fix electrical issues in my car. Right on time for the appointment.

Christopher

15 years of experience
41 reviews
Christopher
15 years of experience
Honda Accord - Check Engine Light is on - Fairburn, Georgia
Christopher was excellent! He explained everything in detail to make sure I understood. He was professional and provided me with the next course of actions to resolve my care issues. I'm glad he was sent to service my car.

Alexander

18 years of experience
58 reviews
Alexander
18 years of experience
Saab 9-7x - Check Engine Light is on - Kissimmee, Florida
He was very friendly and very helpful . I felt like it was being around a close friend , also gave me so very good advice on my car & future advice about it . Highly recommend mechanic, would use his services again .

Matthew

31 years of experience
639 reviews
Matthew
31 years of experience
Jeep Patriot - Check Engine Light is on - Norfolk, Virginia
Matthew was on time which was a relief, he is very knowledgeable and was easy to understand what was wrong and what was being done. I am recommending to friends and family due to the great experience Matthew gave me. Extremely professional 10/10

More related articles

P0827 OBD-II Trouble Code: Up and Down Shift Switch Input Circuit Low
P0827 means there is an issue with the up and down shift switch circuit, possibly due to damage to the switch.
P0697 OBD-II Trouble Code: Sensor Reference Voltage “C” Circuit/Open
P0697 means there is a fault with the sensor reference voltage "C" circuit, likely due to damaged or shorted wiring or connectors.
P0631 OBD-II Trouble Code: VIN Not Programmed or Incompatible – TCM
P0631 means the transmission control module failed to recognize the VIN, often due to a damaged PCM or module-related wiring.

Related questions

Scan vehicle Code P0430 Cataylic system efficiency below threshold bank 2

The code is meant to indicate your catalytic converter is not performing up to par with the EPA (environmental protection agency) standards. Your car uses the oxygen sensors to monitor the catalytic converter (cat) efficiency. There is an O2 sensor...

Stalling

Hi there: The EVAP system is comprised of multiple components. Although the gas cap removal is the easiest job to complete and the source of many of these problems, another common issue is caused by the EVAP vent solenoid. When...

Rotten egg smell, all lights on dash board are on BUT the check engine light is off.

Simultaneous illumination of "all" warning lights on the dash while driving, when there is no underlying fault, indicates an electrical failure. That failure would have to be diagnosed in a warning light diagnostic. With regard to the check engine light,...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com