P244B GMC – Diesel Particulate Filter Differential Pressure Too High Bank 1

 

P244B: DIY Repairing Video Tutorial

https://youtu.be/DIhzw9or0GE

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P244B GMC Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light)  

P244B GMC Possible Causes

  Faulty diesel particulate filter,Exhaust leaks before or near the diesel particulate filter pressure sensor,Leaks in the diesel particulate filter pressure sensor connecting hose,Aftermarket accessories and performance modifications  

P244B GMC Description

  This diagnostic checks to make sure that the aftertreatment Diesel Particulate Filter is present and functioning correctly. The Engine Control Module (ECM) uses the Exhaust Pressure Sensor to monitor the pressure differential through the aftertreatment Diesel Particulate Filter. The ECM will set the fault if it detects that the aftertreatment diesel particulate filter is not present in the aftertreatment/exhaust system. This DTC is a two trip fault. Active regeneration of the aftertreatment Diesel Particulate Filter will be disabled. The ECM will turn off the MIL lamp immediately after the diagnostic runs and passes.