OBD-II code · Powertrain (generic, extended)
P227C Barometric Pressure Sensor C Circuit Low
Barometric sensor C 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 P227C?
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
- P222CBarometric Pressure Sensor B Circuit Low
- P2279Intake Air System Leak
- P227ABarometric Pressure Sensor C Circuit
- P227BBarometric Pressure Sensor C Circuit Range/Performance
- P227DBarometric Pressure Sensor C Circuit High
- P227EBarometric Pressure Sensor C Circuit Intermittent/Erratic
- P227FAir Flow Restriction/Air Leak Between Air Filter and MAF (Bank 2)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.