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Engine-Codes – GMC – P0522 GMC

P0522 GMC Code - Engine Oil Pressure Sensor Circuit Low Voltage

Quick Answer

The P0522 code for GMC vehicles indicates a problem with the engine oil pressure sensor circuit registering low voltage. Common causes include Faulty engine oil pressure sensor, Damaged or corroded wiring connections, Low engine oil level or poor quality oil. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0522 GMC indicates Engine Oil Pressure Sensor Circuit Low Voltage.
Common causes
Common causes include Faulty engine oil pressure sensor, Damaged or corroded wiring connections, Low engine oil level or poor quality oil.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0522 GMC Description

The P0522 code for GMC vehicles indicates a problem with the engine oil pressure sensor circuit registering low voltage. This means that the sensor is not detecting the appropriate level of oil pressure in the engine, which can have serious implications for the vehicle's performance and longevity. The engine oil pressure sensor is a crucial component that monitors the oil pressure in the engine and sends signals to the vehicle's computer system. This information is essential for ensuring proper lubrication and optimal performance of the engine. When the sensor detects low voltage, it can trigger the P0522 code, indicating that there may be an issue with the oil pressure sensor, the wiring, or other related components.

OBDII Code P0522 GMC - Engine Oil Pressure Sensor Circuit Low Voltage
P0522 GMC Code - Engine Oil Pressure Sensor Circuit Low Voltage

Common Causes of P0522 GMC

  1. Faulty engine oil pressure sensor
  2. Damaged or corroded wiring connections
  3. Low engine oil level or poor quality oil
  4. Clogged oil filter
  5. Engine oil pump malfunction

Symptoms of P0522 GMC

  1. Illumination of the check engine light on the dashboard
  2. Low oil pressure warning light on the dashboard
  3. Engine knocking or ticking noises
  4. Poor engine performance or reduced power
  5. Engine overheating

How to Fix P0522 GMC

  1. Use a diagnostic tool to confirm the P0522 code and pinpoint the issue with the engine oil pressure sensor circuit.
  2. Inspect the wiring connections and sensor for any damage or corrosion. Replace any faulty components.
  3. Check the engine oil level and quality, and ensure that the oil filter is not clogged. Replace the oil and filter if necessary.
  4. Test the engine oil pressure using a mechanical gauge to verify the sensor's readings.
  5. Clear the code from the vehicle's computer system and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P0522 GMC

The cost of repairing a P0522 code for GMC vehicles can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, the cost of replacing the engine oil pressure sensor or repairing the wiring connections can range from $150 to $300, including parts and labor. However, if additional components such as the oil pump need to be replaced, the cost can increase significantly. It's important to consult with a professional mechanic to get an accurate estimate based on the specific diagnosis and repair needed. Labor rates at auto repair shops typically range from $80 to $150 per hour, but can vary based on location and the shop's rates.

What does this mean?

Tech Notes for P0522 GMC

DTC P0521 can be set if engine oil pressure is outside the calculated engine oil pressure model stored in the engine control module. This can be an indication of mechanical engine issues causing lower than expected engine oil pressure.



















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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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