Cumminz

Cummins ISB CM850 (2003-06) Fault Code: 2347 (ISB) PID: SID 151 SPN: 611 FMI: 15 Turbocharger compressor outlet temperature – data above normal. High turbocharger compressor outlet temperature has been calculated by the ECM. Possible causes for high turbocharger compressor outlet temperature include: 1)Air intake leaks between the air filter and turbocharger, allowing warm underhood air to enter the turbocharger compressor inlet2)Incorrect turbocharger compressor inlet temperature sensor output3)Incorrect output of sensors used to calculate turbocharger compressor outlet temperature, such as ambient air pressure and turbocharger speed. NOTE: This code will most likely not be active with no load in the...

Cummins ISB CM850 (2003-06) Fault Code: 2347 (ISC) PID: SPN: 2790 FMI: 15 Turbocharger Compressor Outlet Air Temperature (Calculated) – Data Valid but Above Normal Range – least severe level. Possible causes: 1)Air intake leaks allowing hot underhood air to enter the intake system2)Faulty intake manifold pressure readings3)High turbocharger speed readings4)Faulty barometric pressure readings5)Stuck turbocharger control valve6)Stuck variable geometry turbocharger. NOTE: Unless the failure is a failed barometric pressure sensor or intake manifold pressure sensor, this fault code will most likely not be active with no load in the shop. The engine will most likely need to be loaded to...

Cummins ISB CM850 (2003-06) Fault Code: 2348 PID: 27 SPN: 27 FMI: 13 EGR valve failed automatic calibration procedure – out of calibration. A possible cause of this fault could be an EGR valve assembly internal failure causing the EGR valve to not close fully. When troubleshooting inactive counts of this fault code, running the EGR Valve Test in INSITE? electronic service tool could help identify a stuck EGR valve. Possible repairs: 1)Replace the engine harness.2)Replace the EGR valve assembly.3)Replace the ECM.

Cummins ISB CM850 (2003-06) Fault Code: 2349 PID: SID 146 SPN: 2791 FMI: 5 EGR Valve Control Circuit – Current Below Normal or Open Circuit. High voltage or open circuit detected at the EGR valve motor circuit. The ECM monitors the voltage level of this circuit and logs a fault code if the voltage level indicates an open circuit or if a short circuit to voltage source is present. This fault is always set inactive when the keyswitch is turned on. If the fault condition reoccurs while the keyswitch is in the ON position, the fault code will be set...

Cummins ISB CM850 (2003-06) Fault Code: 235 PID: 111 SPN: 111 FMI: 1 Coolant Level – Data Valid but Below Normal Operational Range – Most Severe Level. Low engine coolant level detected. This fault code goes active when the coolant level inside the radiator top tank or surge tank drops below the sensor level. Fill the top tank with coolant. Possible repairs: 1)Add coolant to the engine.