P2229 GMC Code - Barometric Pressure Sensor Circuit High Voltage
Quick Answer
The Barometric Pressure (BARO) sensor is integral to the multifunction intake air sensor and responds to changes in altitude and atmospheric conditions. Common causes include Faulty Barometric Pressure (BARO) Sensor (integrated within Mass Air Flow/Multifunction Intake Air Sensor), Barometric Pressure Sensor harness is open or shorted, Barometric Pressure Sensor circuit poor electrical connection. 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 GMC indicates Barometric Pressure Sensor Circuit High Voltage.
- Common causes
- Common causes include Faulty Barometric Pressure (BARO) Sensor (integrated within Mass Air Flow/Multifunction Intake Air Sensor), Barometric Pressure Sensor harness is open or shorted, Barometric Pressure Sensor circuit poor electrical connection.
- 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.
Code P2229 GMC Description
What are the Possible Causes of the DTC P2229 GMC?
- Faulty Barometric Pressure (BARO) Sensor (integrated within Mass Air Flow/Multifunction Intake Air Sensor)
- Barometric Pressure Sensor harness is open or shorted
- Barometric Pressure Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2229 GMC?
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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2229 GMC 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 P2229 GMC code?
Need more information on how to fix the P2229 GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2229 GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- P2229 2014 GMC Sierra — Barometric Pressure Sensor Circuit High Voltage
- P2229 2015 GMC Sierra — Barometric Pressure Sensor Circuit High Voltage
- P2229 2016 GMC Sierra — Barometric Pressure Sensor Circuit High Voltage
- P2229 2017 GMC Sierra — Barometric Pressure Sensor Circuit High Voltage
- P2229 2018 GMC Sierra — Barometric Pressure Sensor Circuit High Voltage
Frequently Asked Questions about P2229 GMC Code
1. What are the common symptoms of OBDII code P2229 in a GMC vehicle?
- Common symptoms include rough engine idling, decreased fuel efficiency, and potential stalling or hesitation during acceleration.
2. What can cause the Barometric Pressure Sensor Circuit High Voltage error code P2229 in a GMC?
- Possible causes include a faulty barometric pressure sensor, damaged wiring or connectors in the sensor circuit, or a problem with the engine control module (ECM).
3. How can I diagnose the P2229 code related to the barometric pressure sensor in my GMC?
- To diagnose the issue, you can use an OBDII scanner to read the trouble codes, perform a visual inspection of sensor wiring and connectors, and test the sensor's voltage and resistance.
4. Is it safe to continue driving with OBDII code P2229 triggered in a GMC vehicle?
- It is not recommended to drive with this code active, as it can lead to potential engine performance issues and further damage if left unresolved.
5. Can I reset the P2229 code on my GMC by disconnecting the battery?
- While disconnecting the battery may temporarily clear the code, it is not a permanent solution. The underlying issue causing the code needs to be addressed for a lasting repair.
6. How much does it typically cost to repair the Barometric Pressure Sensor Circuit High Voltage error code P2229 in a GMC?
- The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing the barometric pressure sensor, repairing wiring, or reprogramming the ECM. Costs can range from $100 to $400 or more.
7. Are there any DIY tips for fixing the P2229 code in a GMC, or should I seek professional help?
- While simple tasks like checking sensor connections can be done by DIY enthusiasts, diagnosing and repairing the root cause of the code may require professional expertise to ensure a proper fix.
8. Can a dirty air filter cause the P2229 code to trigger in a GMC due to incorrect barometric pressure readings?
- A dirty air filter is unlikely to directly trigger the P2229 code, but it can affect engine performance and efficiency, leading to related issues that may contribute to the code being set.
9. How long does it typically take to repair the P2229 code related to the barometric pressure sensor in a GMC?
- The repair time can vary based on the specific cause of the code and the complexity of the fix. In general, it may take anywhere from 1 to 3 hours for a professional mechanic to diagnose and repair the issue.
10. Will resetting the P2229 code make it pass an emissions test for my GMC?
- Resetting the code without fixing the underlying issue will not solve the problem. The issue must be resolved and the system needs to pass a series of readiness tests before it can pass an emissions test.
Discuss the causes and fixes for P2229 GMC OBDII Code
Code P2229 GMC comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
