AutoCodes – Chevrolet – P0523 2016 Chevrolet Silverado

P0523 2016 Chevrolet Silverado Code - Engine Oil Pressure Sensor Circuit High Voltage

Quick Answer

The engine oil pressure sensor changes voltage based on the engine oil pressure. Common causes include Low oil level, Faulty Engine Oil Pressure Sensor, Engine Oil Pressure Sensor harness is open or shorted. 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: P0523 2016 Chevrolet Silverado indicates Engine Oil Pressure Sensor Circuit High Voltage.
Common causes: Common causes include Low oil level, Faulty Engine Oil Pressure Sensor, Engine Oil Pressure Sensor harness is open or shorted.
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.

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Code Popularity 714

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 30, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0523 2016 Chevrolet Silverado Description

The engine oil pressure sensor changes voltage based on the engine oil pressure. The engine oil pressure sensor is a 3-wire sensor comprising the signal circuit, the low reference circuit, and the 5 V reference circuit. The Engine Control Module (ECM) supplies 5 V to the engine oil pressure sensor via the 5 V reference circuit and provides ground via the low reference circuit. The ECM monitors the signal circuit of the engine oil pressure sensor to determine if the engine oil pressure sensor voltage is within the normal operating range of approximately 1 - 4 V. When the engine oil pressure is high, the engine oil pressure sensor voltage is high, and the ECM senses a high signal voltage. When the engine oil pressure is low, the engine oil pressure sensor voltage is low, and the ECM senses a low signal voltage. The ECM sends the engine oil pressure information to the instrument cluster via serial data. The instrument cluster will illuminate or display the engine oil pressure indicator when the engine oil pressure is low. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the engine oil pressure sensor signal circuit is greater than 4.8 V for greater than 10 s.

OBDII Code P0523 2016 Chevrolet Silverado - Engine Oil Pressure Sensor Circuit High Voltage - AutoCodes.com — P0523 2016 Chevrolet Silverado Code - Engine Oil Pressure Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0523 2016 Chevrolet Silverado?

Low oil level
Faulty Engine Oil Pressure Sensor
Engine Oil Pressure Sensor harness is open or shorted
Engine Oil Pressure Sensor circuit poor electrical connection
Engine Mechanical Problem
Faulty Engine Control Module (ECM)

How to Fix the DTC P0523 2016 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0523 2016 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0523 2016 Chevrolet Silverado code?

Need more information on how to fix the P0523 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0523 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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.

Frequently Asked Questions about P0523 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0523 in a 2016 Chevrolet Silverado?

The common symptoms of OBDII code P0523 in a 2016 Chevrolet Silverado include high engine oil pressure readings on the gauge, illuminated oil pressure warning light on the dashboard, and potential engine performance issues.

2. What causes the OBDII code P0523 to trigger in a 2016 Chevrolet Silverado?

The OBDII code P0523 in a 2016 Chevrolet Silverado typically triggers when the engine oil pressure sensor circuit detects a high voltage signal, indicating a potential issue with the sensor or its wiring.

3. How can I diagnose the OBDII code P0523 in my 2016 Chevrolet Silverado?

Diagnosing the OBDII code P0523 in a 2016 Chevrolet Silverado involves checking the engine oil pressure sensor and its wiring for any damage or corrosion, testing the sensor's resistance, and inspecting the oil pressure readings.

4. Can a faulty engine oil pressure sensor cause the OBDII code P0523 in a 2016 Chevrolet Silverado?

Yes, a faulty engine oil pressure sensor can cause the OBDII code P0523 in a 2016 Chevrolet Silverado if it sends a high voltage signal to the engine control module, indicating a potential issue with the oil pressure readings.

5. How do I repair the OBDII code P0523 in my 2016 Chevrolet Silverado?

To repair the OBDII code P0523 in a 2016 Chevrolet Silverado, you may need to replace the engine oil pressure sensor if it is found to be faulty, repair any damaged wiring or connectors, and clear the trouble code using an OBDII scanner.

6. Are there any safety concerns associated with the OBDII code P0523 in a 2016 Chevrolet Silverado?

While the OBDII code P0523 itself may not pose immediate safety concerns, it is crucial to address the underlying issue promptly to prevent potential engine damage due to inaccurate oil pressure readings.

7. Can I continue driving my 2016 Chevrolet Silverado with the OBDII code P0523?

It is not recommended to continue driving your 2016 Chevrolet Silverado with the OBDII code P0523, as inaccurate oil pressure readings can lead to engine damage or failure. It is best to address the issue as soon as possible.

8. Will resetting the OBDII code P0523 in my 2016 Chevrolet Silverado make it go away permanently?

Resetting the OBDII code P0523 in your 2016 Chevrolet Silverado may clear the trouble code temporarily, but if the underlying issue with the engine oil pressure sensor circuit high voltage is not addressed, the code is likely to reappear.

9. How much does it cost to repair the OBDII code P0523 in a 2016 Chevrolet Silverado?

The cost to repair the OBDII code P0523 in a 2016 Chevrolet Silverado can vary depending on the extent of the issue, the need for parts replacement, and labor costs. It is recommended to consult a professional mechanic for an accurate estimate.

10. Can I prevent the OBDII code P0523 from occurring in my 2016 Chevrolet Silverado?

Regular maintenance, including checking the engine oil pressure sensor and its wiring for any signs of wear or damage, can help prevent the occurrence of the OBDII code P0523 in a 2016 Chevrolet Silverado.