Conditions for Setting the DTC

P2227

• The engine is running.
• The ECM detects that the difference between the actual BARO and the calculated BARO is greater than a calibrated threshold.

  OR

• 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).

P2228 

The ECM detects that the BARO sensor voltage is less than 2 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.