Conditions for Running the DTC
WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
P0411
- DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0128, P0201-P0208, P0300, P0301-P0308, P0351-P0358, P0412, P0418, P0420, P0606, P0641, P0651, P2430, P2431, P2432, P2433, P2440, 2444 are not set.
- The system voltage is between 11-18V.
- The start-up intake air temperature (IAT) is greater than 5°C (41°F).
- The start-up engine coolant temperature (ECT) is between 5-80°C (41-176°F).
- The AIR system is commanded ON.
- The conditions are stable for greater than 5 seconds.
- DTC P0411 runs once per trip start-up when the above conditions are met and AIR pump operation is requested.
P0412 or P0418
- The system voltage is between 9-18V.
- The ignition is ON.
- These DTCs run on a 250 ms loop.
- DTCs P0412 and P0418 run continuously when the above conditions are met.
P2440
- DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0128, P0201-P0208, P0300, P0351-P0358, P0411, P0412, P0418, P0420, P0606, P0641, P0651, P2430, P2431, P2432, P2433, 2444 are not set.
- The system voltage is between 11-18V.
- The BARO is greater than 70 kPa.
- The start-up engine coolant temperature (ECT) is between 5-80°C (41-176°F).
- The start-up intake air temperature (IAT) is between 5-80°C (41-176°F).
- The mass air flow (MAF) sensor is less than 33 g/s.
- The AIR system is commanded ON.
- Conditions are stable for greater than 5 seconds.
- DTC P2440 runs once per trip start-up when the above conditions are met and AIR pump operation is requested.
P2444
- DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0128, P0201-P0204, P0300, P0351-P0358, P0411, P0412, P0418, P0420, P0606, P0641, P0651, P1106, P1107, P2430, P2431, P2432, P2433, 2440 are not set.
- The system voltage is between 11-18V.
- The BARO is greater than 70 kPa.
- The start-up engine coolant temperature (ECT) is between 5-80°C (41-176°F).
- The start-up intake air temperature (IAT) is between 5-80°C (41-176°F).
- The MAF sensor is less than 33 g/s.
- The AIR system is commanded ON.
- The conditions are stable for greater than 5 seconds.
- DTC P2444 runs once per trip start-up when the above conditions are met and AIR pump operation is requested.