Cummins ISC CM2150 (2007-09) Fault Code: 2448 PID: SPN: 111 FMI: 1 Coolant Level – Data Valid but Below Normal Operational Range – Least Severe Level. Low engine coolant level detected.
Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable...