Cummins ISB6.7 CM2150 (2007-09) Fault Code: 2363 PID: SID 029 SPN: 1073 FMI: 4 Engine Brake Actuator Driver Output 2 Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected at the engine brake solenoid number 2 signal circuit.

Verify the electronic control module (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, recalibrate the ECM.

Possible causes:

1)A short circuit to ground in the engine harness, connectors, or engine brake solenoids.

Possible repairs:

1)Repair or replace the engine brake harness.
2)Repair or replace the engine harness.
3)Replace the engine brake solenoid.
4)Replace the ECM.