Conditions for Setting the DTC: P2227
WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the BARO pressure is less than 50 kPa or greater than 115 kPa.
- The ECM detects that the BARO pressure changed greater than 5 kPa within 20 seconds.
- The ECM detects that the BARO pressure changed greater than 30 kPa since the last ignition cycle.
- Any of the condition above exist for 4 seconds or for a cumulative of 50 seconds.