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What is the code P0523 on a 2013 Chevy Silverado?

The P0523 code on a 2013 Chevy Silverado indicates an issue with the engine oil pressure sensor. This diagnostic trouble code is triggered when the vehicle's onboard computer detects a problem with the sensor that monitors the oil pressure in the engine.


What is the P0523 Code?


The P0523 code is a generic powertrain diagnostic trouble code that applies to many vehicles, including the 2013 Chevy Silverado. It is defined as "Engine Oil Pressure Sensor/Switch Circuit High Input". This means that the vehicle's computer has detected a voltage signal from the oil pressure sensor that is higher than the expected range, indicating a potential problem with the sensor or the wiring connected to it.


Causes of the P0523 Code in a 2013 Chevy Silverado



  • Faulty engine oil pressure sensor

  • Wiring issues, such as a short circuit, in the oil pressure sensor circuit

  • Malfunctioning engine control module (ECM)

  • Low engine oil level

  • Clogged oil filter


The P0523 code is often triggered by a problem with the oil pressure sensor itself, but it can also be caused by issues in the wiring or the ECM that processes the sensor's signal.


Symptoms of the P0523 Code


When the P0523 code is present, the 2013 Chevy Silverado may exhibit the following symptoms:



  • Check engine light illuminated on the dashboard

  • Erratic or inaccurate oil pressure reading on the dashboard gauge

  • Reduced engine performance or power

  • In some cases, the engine may shut off unexpectedly due to low oil pressure


It's important to address the P0523 code promptly to prevent further damage to the engine and ensure the vehicle's safe operation.


Diagnosing and Resolving the P0523 Code


To diagnose and resolve the P0523 code on a 2013 Chevy Silverado, a mechanic will typically follow these steps:



  1. Scan the vehicle's onboard diagnostics system to confirm the P0523 code and any other related codes.

  2. Inspect the engine oil level and top it up if necessary.

  3. Check the oil pressure sensor and its wiring for any signs of damage or issues.

  4. Test the oil pressure sensor's operation and replace it if faulty.

  5. Inspect the engine control module (ECM) and replace it if necessary.

  6. Clear the diagnostic trouble codes and test the vehicle to ensure the issue has been resolved.


Addressing the P0523 code on a 2013 Chevy Silverado is crucial to maintaining the vehicle's performance and preventing potential engine damage. By following the proper diagnostic and repair procedures, the issue can be resolved, and the vehicle can be returned to safe and reliable operation.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.