OBD-II code · Powertrain (generic, extended)
P222C Barometric Pressure Sensor B Circuit Low
Barometric sensor B below lower plausibility — short to ground. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P222C?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyShort to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
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
- P227CBarometric Pressure Sensor C Circuit Low
- P2229Barometric Pressure Sensor Circuit High
- P222BBarometric Pressure Sensor B Circuit Range/Performance
- P222DBarometric Pressure Sensor B Circuit High
- P222EBarometric Pressure Sensor B Circuit Intermittent/Erratic
- P222FBarometric Pressure Sensor A/B Correlation
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.