Conditions for Setting the DTC
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
P2430
The ECM determines that the pressure sensor value change is less than a calibrated value.
P2431
- The ECM determines that the AIR pressure sensor is 10 kPa less than, or 14 kPa greater than, the BARO sensor signal when the AIR pump is commanded OFF.
OR
- The ECM determines that the difference between the AIR pressure sensor and the BARO sensor signals is greater than 50 kPa when the AIR pump is commanded ON.
DTC P2432
The Secondary Air Pressure sensor signal is less than 0.2 V for at greater than 12 seconds.
DTC P2433
The Secondary Air Pressure sensor signal is greater than 4.8 V for greater than 12 seconds.