Set Condition
WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
When the Powertrain Control Module (PCM) recognizes an internal failure to communicate or the CMP and CKP Sensor count periods are too short. One trip fault. ETC light is flashing. If the vehicle is equipped with the stop/start feature, the system will be disabled when this DTC is active.