OBD-II code · Powertrain (generic, extended)
P222A Barometric Pressure Sensor B Circuit
A general electrical fault on barometric pressure sensor B — open, shorted, or out of plausibility. The sensor measures atmospheric pressure for altitude compensation; sensor B is a redundant or secondary unit.
Is it safe to drive with P222A?
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
- P227ABarometric Pressure Sensor C Circuit
- P2227Barometric Pressure Circuit Range/Performance
- P2228Barometric Pressure Sensor Circuit Low
- P2229Barometric Pressure Sensor Circuit High
- P222BBarometric Pressure Sensor B Circuit Range/Performance
- P222CBarometric Pressure Sensor B Circuit Low
- P222DBarometric Pressure Sensor B Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.