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Code P0522

Symptoms

• Check Engine Light is on

• Low oil pressure warning light

• Engine may run rough

• Engine noise due to low oil pressure

Common Causes

• Faulty oil pressure sensor

• Low engine oil level

• Wiring issues or poor electrical connection

• Faulty oil pump

• Engine mechanical problems

Glossary

PCM: Powertrain Control Module

OBD-II: On-Board Diagnostics, Second Generation

Related Codes

• P0520

• P0521

• P0523

Official description

Engine Oil Pressure Sensor/Switch A Low

Laymans terms

This code means that the computer in your car thinks the oil pressure is too low. It's like when you don't have enough air in a balloon, but for your engine's oil.

Explanation

The P0522 code is triggered when the Powertrain Control Module (PCM) detects a low voltage signal from the engine oil pressure sensor/switch, indicating low oil pressure.

Technical description

The engine oil pressure sensor or switch monitors the oil pressure in the engine. If the sensor sends a signal to the PCM that the oil pressure is lower than the expected range, the P0522 code is set. This could be due to a faulty sensor, low oil level, or an actual drop in oil pressure.

Diagnosis steps

• Check the engine oil level and condition

• Inspect the oil pressure sensor and its wiring

• Test the oil pressure with a mechanical gauge

• Check for any engine mechanical issues

Repair procedures

• Replace the oil pressure sensor

• Repair or replace damaged wiring

• Change the engine oil and filter

• Repair or replace the oil pump if necessary

Tools required

• Oil pressure gauge

• Multimeter

• Wrench set

Estimated repair cost

$100 - $300

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Silverado

• Dodge Ram

• Ford F-150

Preventive measures

• Regular oil changes

• Routine engine maintenance

• Checking oil levels frequently

Error code type

Sensor Issue

User experience recommendations

• Do not ignore the warning light

• Check oil level immediately

• Consult a mechanic if unsure

Warranty information

Check with your vehicle manufacturer for specific warranty coverage related to engine components.

Historical data

The P0522 code has been commonly reported in vehicles with higher mileage or those that have not been maintained regularly.

Urgency level

High – Low oil pressure can lead to engine damage if not addressed promptly.

Legal and safety notice

Driving with low oil pressure can cause significant engine damage, leading to costly repairs.

Testing conditions

• Engine at operating temperature

• Vehicle idling

Component location

The engine oil pressure sensor is typically located near the oil filter or on the engine block.

FAQs

Q: Can I drive with a P0522 code?
A: It's not recommended to drive with this code as low oil pressure can damage your engine.

Q: How do I reset the P0522 code?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.

Last updated: Apr 3, 2026 • Source: internal database
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