Cummins ISB6.7 CM2150 (2007-09) Fault Code: 146 PID: 110 SPN: 110 FMI: 0 Engine Coolant Temperature – Data Valid But Above Normal Operational Range – Moderately Severe Level. Engine coolant temperature is above engine protection warning limit.

Verify the ECM calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, calibrate the ECM.

This fault code indicates that coolant temperature has exceeded the engine protection limits for high coolant temperature.

Possible repairs:

1)Replace the engine coolant temperature sensor.
2)Replace the ECM.
3)Replace the engine harness.