Conditions for Setting the DTC
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
P2227
- The engine is running.
- The ECM detects that the difference between the actual BARO and the calculated BARO is greater than 15 kPa when the distance traveled since the last calculated BARO update is less than or equal to 0.1 km (0.06 mi).
OR
- The ECM detects that the difference between the actual BARO and the calculated BARO is greater than 20 kPa when the distance traveled since the last calculated BARO update is greater than 0.1 km (0.06 mi).
OR
- The ECM detects that the difference between the actual BARO and the calculated BARO is greater than 15 kPa when the distance traveled since the last calculated BARO update is less than or equal to 0.1 km (0.06 mi).
- Ignition ON, engine OFF
- The ECM detects that the BARO pressure is less than 50 kPa (7.3 psi) or greater than 115 kPa (16.7 psi).
OR
- The ECM detects that the absolute value of the difference between MAP and actual BARO is greater than 10 kPa and the absolute value of the difference between Boost Pressure and MAP is less than or equal to 10 kPa and the absolute value of the difference between Boost Pressure and BARO is greater than 10 kPa.
- The ECM detects that the BARO pressure is less than 50 kPa (7.3 psi) or greater than 115 kPa (16.7 psi).
P2228
The ECM detects that the BARO sensor voltage is less than 1.7 V for greater than 5 s.
P2229
The ECM detects that the BARO sensor voltage is greater than 4.5 V for greater than 5 s.
P2230
The ECM detects that the cumulative difference between BARO sensor readings, over a specific length of time, is greater than a calibrated threshold.