Cummins ISC CM2150 (2007-09) Fault Code: 115 PID: 115 SPN: 115 FMI: 2 Engine Magnetic Speed/Position Lost Both of Two Signals – Data Erratic, Intermittent, or Incorrect.
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.
This fault code indicates that the camshaft position sensor and crankshaft position sensor wiring harness connectors are reversed.
Possible repairs:
1)If necessary, calibrate the ECM. 2)Replace the ECM.