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Engine-Codes – GMC – P2229 2014 GMC Sierra

P2229 2014 GMC Sierra Code - Barometric Pressure Sensor Circuit High Voltage

Quick Answer

The P2229 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the Barometric Pressure Sensor Circuit registering high voltage. Common causes include Faulty barometric pressure sensor, Damaged wiring or connectors in the sensor circuit, ECM software issues. 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
P2229 2014 GMC Sierra indicates Barometric Pressure Sensor Circuit High Voltage.
Common causes
Common causes include Faulty barometric pressure sensor, Damaged wiring or connectors in the sensor circuit, ECM software issues.
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 15, 2024
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Code P2229 2014 GMC Sierra Description

The P2229 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the Barometric Pressure Sensor Circuit registering high voltage. The barometric pressure sensor is a crucial component of the vehicle's engine management system, as it measures the atmospheric pressure and helps the engine control module (ECM) adjust fuel delivery and ignition timing for optimal performance and efficiency. When the sensor detects high voltage in the circuit, it means that the pressure readings are outside the normal range, which can lead to various issues with engine performance and emissions control.

OBDII Code P2229 2014 GMC Sierra - Barometric Pressure Sensor Circuit High Voltage
P2229 2014 GMC Sierra Code - Barometric Pressure Sensor Circuit High Voltage

Common Causes of P2229 2014 GMC Sierra

  1. Faulty barometric pressure sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. ECM software issues
  4. Vacuum leaks in the intake system
  5. Environmental factors affecting barometric pressure readings

Symptoms of P2229 2014 GMC Sierra

  1. Check engine light illuminated
  2. Decreased fuel efficiency
  3. Rough idling or stalling
  4. Hesitation during acceleration
  5. Engine misfires

How to Fix P2229 2014 GMC Sierra

  1. Begin by using a scan tool to read the DTC and confirm the presence of the P2229 code.
  2. Inspect the barometric pressure sensor, wiring, and connectors for any visible damage or corrosion. Replace any faulty components.
  3. Clear the DTC and reset the ECM to see if the code returns after repairs.
  4. Perform a test drive to ensure that the symptoms associated with the code have been resolved.
  5. If the issue persists, further diagnostics may be required to pinpoint the exact cause, such as checking for vacuum leaks or ECM software updates.

Cost to Fix P2229 2014 GMC Sierra

The typical repair costs for addressing a P2229 code on a 2014 GMC Sierra can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically falling between $80 and $150. Factors such as location, vehicle make and model, and engine type can also influence repair costs. For a more accurate estimate, it's recommended to consult with a local auto repair shop.

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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.

Frequently Asked Questions about P2229 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P2229 in a 2014 GMC Sierra?

The common symptoms of OBDII code P2229 include check engine light illuminated on the dashboard, reduced engine performance, rough idling, and potential fuel efficiency issues.

2. What does the OBDII code P2229 indicate in a 2014 GMC Sierra?

The OBDII code P2229 in a 2014 GMC Sierra indicates a high voltage condition in the barometric pressure sensor circuit.

3. What are the possible causes of OBDII code P2229 in a 2014 GMC Sierra?

Possible causes of OBDII code P2229 in a 2014 GMC Sierra include a faulty barometric pressure sensor, damaged wiring or connectors in the sensor circuit, or an issue with the engine control module (ECM).

4. How can I diagnose the OBDII code P2229 in my 2014 GMC Sierra?

Diagnosing OBDII code P2229 in a 2014 GMC Sierra involves using a diagnostic scanner to retrieve the code, checking the barometric pressure sensor and its circuit for any visible damage, and testing the sensor's voltage output.

5. Can I continue driving my 2014 GMC Sierra with OBDII code P2229 present?

It is not recommended to continue driving your 2014 GMC Sierra with OBDII code P2229 present, as it can lead to further engine issues and potential damage if left unresolved.

6. How can I repair OBDII code P2229 in my 2014 GMC Sierra?

To repair OBDII code P2229 in a 2014 GMC Sierra, you may need to replace the barometric pressure sensor, repair any damaged wiring or connectors in the sensor circuit, or reprogram the engine control module (ECM) if necessary.

7. Is it possible to reset OBDII code P2229 in a 2014 GMC Sierra without fixing the underlying issue?

Resetting OBDII code P2229 in a 2014 GMC Sierra without fixing the underlying issue will only temporarily clear the code, and the check engine light is likely to come back on once the ECM detects the fault again.

8. Can a DIY enthusiast fix OBDII code P2229 in a 2014 GMC Sierra?

Depending on your skill level and access to tools, a DIY enthusiast may be able to fix OBDII code P2229 in a 2014 GMC Sierra by following repair guides and using proper diagnostic equipment.

9. How much can I expect to pay for repairing OBDII code P2229 in my 2014 GMC Sierra at a professional mechanic or dealership?

The cost of repairing OBDII code P2229 in a 2014 GMC Sierra at a professional mechanic or dealership can vary depending on the exact cause of the issue, but it may range from $100 to $500 or more.

10. Will fixing OBDII code P2229 in my 2014 GMC Sierra improve the vehicle's performance and fuel efficiency?

Fixing OBDII code P2229 in a 2014 GMC Sierra can help restore normal engine performance and potentially improve fuel efficiency by ensuring the proper operation of the barometric pressure sensor and related systems.

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