NHTSA Complaint #11452837 — 2015 RAM 2500

This issue relates to code U010c “lost communication with turbo charger supercharger A”. When the engine brake is turned on the engine brake can remain on during this malfunction and the vehicle loses power. If the fault code above occurs at highway speed and the engine brake was activated the engine brake can remain on even if the accelerator is pressed and the engine brake is manually turned off. This situation required me to quickly move to the shoulder and shut the engine off to reset the fault code. This has happened to me several times. My vehicle only has 34k miles but the warranty has expired. The turbo actuator tests ok until the engine is at operating temperature. The actuator electronic control malfunctions at normal engine operating temperature. The dealer wants to replace the entire turbo. There seems to be many aftermarket companies that make replacement actuators so I believe this is a common problem with Cummins turbo Diesel engines from 2012 to 2019 models.