OBD-II code · Powertrain (generic, extended)
P227A Barometric Pressure Sensor C Circuit
A general electrical fault on barometric pressure sensor C — open, shorted, or out of plausibility. The sensor measures atmospheric pressure for altitude compensation; sensor C is a redundant or secondary unit.
Is it safe to drive with P227A?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor failed
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- Parts involved
- Barometric Pressure Sensor
Related codes
- P222ABarometric Pressure Sensor B Circuit
- P2277O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 3)
- P2278O2 Sensor Signals Swapped Bank 1 Sensor 3 / Bank 2 Sensor 3
- P2279Intake Air System Leak
- P227BBarometric Pressure Sensor C Circuit Range/Performance
- P227CBarometric Pressure Sensor C Circuit Low
- P227DBarometric Pressure Sensor C Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.