Engine-CodesGeneric – P2229

P2229 Code - Barometric Pressure Sensor 'A' Circuit High

Quick Answer

The P2229 diagnostic trouble code (DTC) indicates a problem with the Barometric Pressure Sensor 'A' Circuit High in the vehicle. Common causes include Faulty barometric pressure sensor, Damaged or corroded wiring/connectors, ECM malfunction. 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 indicates Barometric Pressure Sensor 'A' Circuit High.
Common causes
Common causes include Faulty barometric pressure sensor, Damaged or corroded wiring/connectors, ECM malfunction.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2229 Description

The P2229 diagnostic trouble code (DTC) indicates a problem with the Barometric Pressure Sensor 'A' Circuit High in the vehicle. The barometric pressure sensor is responsible for measuring the atmospheric pressure outside the vehicle. This information is crucial for the engine control module (ECM) to adjust the air/fuel mixture and ignition timing, ensuring optimal engine performance and fuel efficiency.

OBDII Code P2229 - Barometric Pressure Sensor 'A' Circuit High
P2229 Code - Barometric Pressure Sensor 'A' Circuit High

Common Causes of P2229

  1. Faulty barometric pressure sensor
  2. Damaged or corroded wiring/connectors
  3. ECM malfunction
  4. Vacuum leaks
  5. Intake air leaks

Symptoms of P2229

  1. Decreased fuel efficiency
  2. Engine power loss
  3. Rough idle
  4. Stalling
  5. Check Engine Light illuminated

How to Fix P2229

  1. Use an OBD-II scanner to confirm the P2229 code and verify the barometric pressure sensor is the issue.
  2. Inspect the wiring and connectors for any damage or corrosion. Repair or replace as needed.
  3. Test the barometric pressure sensor's functionality using a multimeter. Replace if faulty.
  4. Check for any vacuum or intake air leaks that could be affecting the sensor's readings.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2229

The cost of repairing a P2229 code can vary depending on the specific cause of the issue. In general, the replacement of a barometric pressure sensor can range from $50 to $200, while labor costs can add an additional $50 to $150. Overall, the total repair cost for this issue could range from $100 to $350. It's important to note that diagnosis time and labor rates can vary, so it's recommended to consult with a trusted auto repair shop for a more accurate estimate based on your vehicle's make and model.

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Code P2229 Information for Specific Makes

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 Code

1. What are common symptoms of OBDII code P2229?

Symptoms of P2229 may include rough idling, poor fuel economy, stalling, or a Check Engine Light illuminating on the dashboard.

2. What does the OBDII code P2229 indicate?

P2229 indicates a high voltage condition in the Barometric Pressure Sensor 'A' circuit, signaling a potential issue with the sensor or its circuit.

3. What are possible causes of OBDII code P2229?

Potential causes of P2229 include a faulty barometric pressure sensor, damaged wiring or connectors in the sensor circuit, or a problem with the engine control module (ECM).

4. How can I diagnose the cause of OBDII code P2229?

Diagnosing P2229 typically involves using a scan tool to check for the code, testing the barometric pressure sensor and its circuit for proper voltage, and inspecting wiring and connectors for damage.

5. Can I drive with OBDII code P2229?

While it may be possible to drive with P2229, it is recommended to address the issue promptly to prevent potential damage to the vehicle and ensure optimal performance.

6. How can I repair OBDII code P2229?

To repair P2229, you may need to replace the barometric pressure sensor, repair any damaged wiring or connectors, or reprogram the ECM if necessary.

7. Is it safe to reset the Check Engine Light after fixing OBDII code P2229?

Yes, it is safe to reset the Check Engine Light after fixing P2229. If the issue has been successfully resolved, the light should not reappear upon resetting.

8. Will OBDII code P2229 cause emission test failure?

Yes, P2229 can cause a vehicle to fail an emission test as it indicates a potential issue with the barometric pressure sensor or its circuit, affecting emissions control.

9. How long does it take to repair OBDII code P2229?

The time to repair P2229 can vary depending on the exact cause of the issue, but it may take anywhere from 30 minutes to a few hours to diagnose and fix the problem.

10. Can a DIY enthusiast fix OBDII code P2229?

While some DIY enthusiasts may be able to diagnose and fix P2229 themselves, it is recommended to have the issue addressed by a professional mechanic to ensure proper repair and prevent further complications.

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