OBD-II code · Powertrain (generic, extended)
P2231 Barometric Pressure Circuit High
The barometric pressure sensor reports a voltage above the upper limit. The signal cannot represent any realistic atmospheric pressure, indicating an open circuit or short to supply voltage.
Is it safe to drive with P2231?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal shorted to supply voltage
- PossibleOpen in signal or ground wire
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Barometric Pressure Sensor, Bps Wiring
Related codes
- P222EBarometric Pressure Sensor B Circuit Intermittent/Erratic
- P222FBarometric Pressure Sensor A/B Correlation
- P2230Barometric Pressure Circuit Low
- P2232O2 Sensor Signal Circuit Shorted to Heater Circuit (Bank 1 Sensor 2)
- P2233O2 Sensor Signal Circuit Shorted to Heater Circuit (Bank 1 Sensor 3)
- P2234O2 Sensor Signal Circuit Shorted to Heater Circuit (Bank 2 Sensor 1)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.