Cummins ISM CM870 (2003-06) Fault Code: 2365 PID: S82 SPN: 1112 FMI: 4/4 Engine Brake Actuator Circuit Number 3 – shorted low. Low voltage detected at the engine brake solenoid Number 3 signal circuit.
Possible causes:
1)Short circuit to ground in the engine harness, connectors, or engine brake solenoids 2)Failed ECM.
Possible repairs:
1)Remove the internal actuator harness. 2)Replace the engine brake solenoid. 3)Replace the ECM.