Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 3937 PID: SPN: 5848 FMI: 10 Aftertreatment 1 SCR Intermediate NH3 Sensor- Abnormal Rate of Change
Circuit DescriptionThe aftertreatment SCR intermediate NH3 (ammonia) sensor is a smart device that communicates with the engine control module via...