P227C 2014 Chevrolet Silverado Code - Barometric Pressure Sensor 2 Circuit Low Voltage
Quick Answer
The Barometric Pressure (BARO) Sensor 2, also referred to as the Turbocharger Inlet Air Pressure (TCIAP) sensor, is integral to the Multifunction Intake Air Sensor and is used for humidity sensor signal correction. Common causes include Faulty Multifunction Intake Air Sensor, Multifunction Intake Air Sensor harness is open or shorted, Multifunction Intake Air 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
- P227C 2014 Chevrolet Silverado indicates Barometric Pressure Sensor 2 Circuit Low Voltage.
- Common causes
- Common causes include Faulty Multifunction Intake Air Sensor, Multifunction Intake Air Sensor harness is open or shorted, Multifunction Intake Air 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 P227C 2014 Chevrolet Silverado Description
- Intake Air Temperature (IAT) Sensor 1
- IAT Sensor 2
- Humidity Sensor
- Mass Air Flow (MAF) Sensor
- Turbocharger Inlet Air Pressure (TCIAP) Sensor (BARO 2)
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the BARO sensor pressure is less than 44 kPa (6.4 PSI) for greater than 5 s.
What are the Possible Causes of the DTC P227C 2014 Chevrolet Silverado?
- Faulty Multifunction Intake Air Sensor
- Multifunction Intake Air Sensor harness is open or shorted
- Multifunction Intake Air Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P227C 2014 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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P227C 2014 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.
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Frequently Asked Questions about P227C 2014 Chevrolet Silverado Code
What does OBDII code P227C mean on a 2014 Chevrolet Silverado?
Code P227C indicates that the Barometric Pressure Sensor 2 Circuit is experiencing a low voltage issue, which affects the engine's ability to adjust to changing air pressure conditions.
What are the common symptoms of code P227C in a 2014 Chevrolet Silverado?
Symptoms may include reduced engine performance, poor fuel efficiency, rough idling, and the check engine light being illuminated.
What causes the P227C code to appear?
Common causes include a faulty barometric pressure sensor, damaged wiring or connectors in the sensor circuit, a failed powertrain control module (PCM), or environmental factors like water intrusion.
Can I drive my 2014 Chevrolet Silverado with a P227C code?
While the vehicle may still be drivable, it is not recommended to ignore the issue as it can lead to reduced engine performance and further damage over time.
How do I diagnose the P227C code on my Chevrolet Silverado?
Start by inspecting the barometric pressure sensor and its wiring for damage, ensure all connections are secure, and use a scan tool to compare barometric pressure readings with expected values.
How do I fix a P227C code on a 2014 Silverado?
Repairs may include replacing the barometric pressure sensor, repairing damaged wiring, cleaning corroded connectors, or reprogramming or replacing the PCM if necessary.
What tools are needed to troubleshoot the P227C code?
You’ll need an OBDII scanner, a multimeter for testing voltage and continuity, and possibly a wiring diagram of the barometric pressure sensor circuit.
Does the P227C code require sensor replacement?
Not always. Sometimes the issue is due to damaged wiring or loose connections, so thoroughly inspect the circuit before replacing the sensor.
How much does it cost to fix a P227C code on a 2014 Silverado?
The cost can range from $100 to $300 depending on whether the sensor needs replacing, wiring repairs are needed, or more extensive PCM diagnostics are required.
What is the function of the barometric pressure sensor in a 2014 Chevrolet Silverado?
The barometric pressure sensor measures atmospheric pressure to help the engine control module (ECM) adjust air-fuel ratios and optimize engine performance.
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