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Cummins ISX CM870 (2003-06) Fault Code: 2362 PID: S28 SPN: 1072 FMI: 4/4 Engine Brake Actuator Circuit Number 1 – shorted low. Low voltage detected at the engine brake solenoid Number 1 signal circuit.

Possible causes:

1)Short circuit to ground in the engine harness, connectors, or engine brake solenoids2)Failed ECM.

Possible repairs:

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

Cummins ISX CM870 (2003-06) Fault Code: 2359 PID: P411 SPN: 411 FMI: 0/16 EGR Differential Pressure Sensor – Data Valid but Above Normal Operating Range – Moderately Severe Level. EGR differential pressure sensor failed automatic calibration procedure or EGR differential pressure reading not valid for engine operating conditions.
Cummins ISX CM870 (2003-06) Fault Code: 2357 PID: S146 SPN: 2791 FMI: 7/7 EGR Valve Control Circuit – Mechanical System Not Responding or Out of Adjustment. The exhaust gas recirculation (EGR) valve motor has exceeded the duty cycle limit, indicating a stuck open EGR valve.
Cummins ISX CM870 (2003-06) Fault Code: 2356 PID: SPN: 2792 FMI: 4/4 Turbocharger Control Shutoff Valve – shorted high. Low voltage detected at turbocharger control shutoff valve circuit.
Cummins ISX CM870 (2003-06) Fault Code: 2355 PID: SPN: 2792 FMI: 3/3 VGT Air Control Shutoff Valve Circuit – shorted high. Open circuit or high signal voltage detected at the turbocharger control shutoff valve circuit.
Cummins ISX CM870 (2003-06) Fault Code: 2353 PID: S146 SPN: 2791 FMI: 6/6 EGR Valve Control Circuit – Current Above Normal or Grounded Circuit. A short circuit to ground has been detected in the exhaust gas recirculation (EGR) valve motor circuit.
Cummins ISX CM870 (2003-06) Fault Code: 2352 PID: S146 SPN: 2791 FMI: 3/3 EGR Valve Control Circuit – Voltage Above Normal or Shorted to High Source. High voltage detected at the EGR valve motor circuit.