Engine-Codes.com
Engine-Codes – Chevrolet – P227C 2017 Chevrolet Silverado

P227C 2017 Chevrolet Silverado Code - Barometric Pressure Sensor 2 Circuit Low Voltage

Quick Answer

The P227C code indicates that the Engine Control Module (ECM) has detected a low voltage condition in the Barometric Pressure Sensor 2 circuit. Common causes include Faulty barometric pressure sensor or its internal components, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections at the sensor or ECM. 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
P227C 2017 Chevrolet Silverado indicates Barometric Pressure Sensor 2 Circuit Low Voltage.
Common causes
Common causes include Faulty barometric pressure sensor or its internal components, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections at the sensor or ECM.
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 Oct 07, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P227C 2017 Chevrolet Silverado Description

The P227C code indicates that the Engine Control Module (ECM) has detected a low voltage condition in the Barometric Pressure Sensor 2 circuit. The barometric pressure sensor is crucial for determining the atmospheric pressure, which is essential for calculating the air density entering the engine. This information is used by the ECM to adjust fuel delivery and ignition timing, ensuring optimal engine performance and efficiency. When the voltage in the circuit is lower than expected, it can lead to incorrect readings, resulting in poor engine performance, increased emissions, and potential engine stalling.

OBDII Code P227C 2017 Chevrolet Silverado - Barometric Pressure Sensor 2 Circuit Low Voltage
P227C 2017 Chevrolet Silverado Code - Barometric Pressure Sensor 2 Circuit Low Voltage

Common Causes of P227C 2017 Chevrolet Silverado

  1. Faulty barometric pressure sensor or its internal components.
  2. Damaged wiring or connectors in the sensor circuit.
  3. Corrosion or poor connections at the sensor or ECM.
  4. Vacuum leaks in the intake system affecting pressure readings.
  5. Faulty ECM that misinterprets sensor data.

Symptoms of P227C 2017 Chevrolet Silverado

  1. Check Engine Light (CEL) illuminated on the dashboard.
  2. Poor fuel economy or increased fuel consumption.
  3. Rough idling or engine stalling.
  4. Decreased engine performance, including sluggish acceleration.
  5. Emission test failure due to increased exhaust emissions.

How to Fix P227C 2017 Chevrolet Silverado

  1. Diagnostic Testing: Use an OBD-II scanner to confirm the P227C code and check for any additional codes that may provide more context.
  2. Visual Inspection: Examine the wiring and connectors associated with the barometric pressure sensor for signs of damage, corrosion, or loose connections.
  3. Sensor Replacement: If the sensor is determined to be faulty, replace it with a new, OEM-quality part to ensure proper function.
  4. Wiring Repair: If damaged wiring is found, repair or replace the affected sections to restore proper electrical flow.
  5. Clear Codes and Test Drive: After repairs, clear the diagnostic codes and take the vehicle for a test drive to ensure that the issue has been resolved and the check engine light does not reappear.

Cost to Fix P227C 2017 Chevrolet Silverado

The typical repair costs for addressing a P227C code can range from $150 to $500, depending on the specific repairs needed. This estimate includes parts such as a new barometric pressure sensor, which can cost between $50 to $150, and labor costs that generally range from $80 to $150 per hour. The total cost will vary based on the complexity of the repair, the specific diagnosis time, and local labor rates. It’s important to note that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing. For a precise estimate, it's advisable to consult local repair shops for their rates and diagnostic fees.

Need more information about the P227C 2017 Chevrolet Silverado code?

Need more information on how to fix the P227C 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P227C 2017 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 P227C 2017 Chevrolet Silverado Code

1. What does the OBDII code P227C mean on a 2017 Chevrolet Silverado?

P227C indicates a "Barometric Pressure Sensor 2 Circuit Low Voltage," meaning the vehicle's ECM has detected an abnormally low voltage signal from the secondary barometric pressure sensor.

2. What are the symptoms of code P227C in a 2017 Chevrolet Silverado?

Common symptoms include poor engine performance, reduced fuel efficiency, difficulty starting, rough idling, and potentially an illuminated check engine light.

3. What causes the P227C code to appear on a 2017 Chevrolet Silverado?

Possible causes include a faulty barometric pressure sensor, damaged or corroded wiring, loose electrical connections, or a malfunctioning ECM.

4. Can I drive my 2017 Chevrolet Silverado with a P227C code?

While the truck may still be drivable, ignoring the P227C code can lead to reduced performance and potential long-term engine damage. It’s best to address the issue promptly.

5. How do I diagnose the P227C code on a 2017 Chevrolet Silverado?

Start by inspecting the barometric pressure sensor and its wiring for damage or corrosion. Use a multimeter to test the voltage and continuity of the sensor circuit. A scan tool can also confirm sensor readings.

6. How do I fix the P227C code on my 2017 Chevrolet Silverado?

Repairs typically involve replacing the faulty barometric pressure sensor, repairing damaged wiring or connectors, or, in rare cases, reprogramming or replacing the ECM.

7. Where is the barometric pressure sensor located on a 2017 Chevrolet Silverado?

The barometric pressure sensor is usually located near the intake manifold or integrated into the ECM. Refer to your service manual for the exact location.

8. How much does it cost to fix a P227C code on a 2017 Chevrolet Silverado?

Repair costs can vary. Replacing a barometric pressure sensor typically costs $100–$300, including parts and labor. Wiring repairs may cost less, while ECM replacement could be more expensive.

9. Can a dirty air filter cause a P227C code on a 2017 Chevrolet Silverado?

No, a dirty air filter does not directly cause a P227C code, but maintaining a clean air filter ensures optimal engine performance and may prevent other related issues.

10. Do I need to clear the P227C code after repairs?

Yes, after completing repairs, use an OBDII scanner to clear the code and verify that it doesn’t return during a test drive.

Discuss the causes and fixes for P227C 2017 Chevrolet Silverado OBDII Code

Submit a New Comment

Code P227C 2017 Chevrolet Silverado comments

No comments found for this page.