P2229 - OBD II Trouble Code

Our automotive experts have put together the following information about the P2229 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2229 code.

What Does P2229 Code Mean?

OBD-II Code P2229 is defined as a Barometric Pressure Sensor "A" Circuit High

The Barometric Pressure Sensor monitors ambient air pressure. Most manufacturers have this sensor integrated into the Mass Airflow Sensor (MAF) or the Powertrain Control Module (PCM). The PCM compares this reading to other sensors to verify the Barometric Pressure Sensor's Calibration. If the PCM determines that the sensor has lost its calibration or voltage reading from the sensor is incorrect, the PCM will set code P2229.

P2229 Symptoms

• Decreased engine performance
• Increased fuel consumption

Common Problems That Trigger the P2229 Code

• Clogged air filter
• Mass Air Flow (MAF) sensor failure
• Powertrain Control Module (PCM) failure
• Powertrain Control Module (PCM) software needs to be updated
• Wiring issue

Common Repairs Needed for the P2229 Code

• Mass Airflow Sensor Replacement
• MAP Sensor Replacement