P2230
Barometric Pressure Circuit Low
Voltage from the barometric pressure sensor is below the calibrated minimum. The signal is too low for any plausible atmospheric pressure, suggesting a short to ground or sensor fault.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: easy
Common causes
Ordered by how often each turns out to be the cause.
- Signal wire shorted to groundCommon
- Internal sensor faultPossible
- Connector pins corroded - high contact resistanceLess likely
Parts involved
- Barometric Pressure Sensor
- Bps Wiring
P2230 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.