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