Cummins ISC CM2150 (2007-09) Fault Code: 2742 PID: SPN: 3249 FMI: 17 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Below Normal Operating Range – Least Severe Level.
Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable...