Cummins ISB4.5 CM2150 Fault Code: 1981 PID: SPN: 3936 FMI: 15 Aftertreatment Diesel Particulate Filter System – Data Valid But Above Normal Operating Range – Least Severe Level.
Circuit DescriptionThe engine aftertreatment system monitors the soot load in the aftertreatment diesel particulate filter. Under normal operating conditions, the...