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Cummins ISX12 CM2250 (2010-12) Fault Code: 3753 PID: SPN: 3713 FMI: 31 Diesel Particulate Filter Active Regeneration Inhibited Due to System Timeout- Condition Exists
Circuit DescriptionThe engine aftertreatment system monitors the soot load in the aftertreatment diesel particulate filter. Under normal operating conditions, the aftertreatment diesel particulate filter is self-cleaning, where soot is converted to carbon dioxide, nitrogen, and water. Under light load operating conditions, it can be necessary to perform a stationary regeneration of the aftertreatment diesel particulate filter. The soot load in the aftertreatment diesel particulate filter is estimated, using the aftertreatment differential pressure sensor and the calculated soot output of the engine.
Component LocationThe aftertreatment diesel particulate filter is located in the exhaust system and is installed by the original equipment manufacturer (OEM). Refer to the OEM service manual.
Conditions for Running the DiagnosticsThis diagnostic runs continuously when the engine is running and the ECM is requesting active regeneration of the aftertreatment diesel particulate filter.
Conditions for Setting the Fault CodesThe ECM detects that the system is requesting an active regeneration of the aftertreatment diesel particulate filter for an extended period of time.
Action Taken When the Fault Code is ActiveThe ECM will log the fault code immediately when the diagnostic runs and fails. The ECM will illuminate the Aftertreatment Diesel Particulate Filter lamp immediately when the diagnostic runs and fails.
Conditions for Clearing the Fault CodeTo validate the repair, perform INSITE? electronic service tool Aftertreatment Diesel Particulate Filter Regeneration Test.The fault code status displayed by INSITE? electronic service tool will change to INACTIVE immediately after the diagnostic runs and passes.The Reset All Faults command in INSITE? electronic service tool can be used to clear active and inactive faults.
Shop TalkThis fault code is an information only fault code indicating that the system was requesting an active regeneration of the aftertreatment system, but was unable to perform an active regeneration.
Possible Cause:1) ECM calibration
Cummins ISX12 CM2250 (2010-12) Fault Code: 3751 PID: SPN: 4792 FMI: 7 Aftertreatment SCR Catalyst System- Mechanical System Not Responding or Out of Adjustment
Cummins ISX12 CM2250 (2010-12) Fault Code: 3749 PID: SID 254 SPN: 3226 FMI: 20 Aftertreatment Outlet Nox Sensor- Data Not Rational- Drifted High
Cummins ISX12 CM2250 (2010-12) Fault Code: 3748 PID: SPN: 3216 FMI: 20 Aftertreatment Intake Nox Sensor- Data Not Rational- Drifted High
Cummins ISX12 CM2250 (2010-12) Fault Code: 3737 PID: SID 115 SPN: 1675 FMI: 31 Engine Starter Mode Overcrank Protection- Condition Exists
Cummins ISX12 CM2250 (2010-12) Fault Code: 3736 PID: SID 27 SPN: 3360 FMI: 11 Aftertreatment Diesel Exhaust Fluid Controller- Root Cause Not Known
Cummins ISX12 CM2250 (2010-12) Fault Code: 3734 PID: 102 SPN: 862 FMI: 4 Crankcase Breather Filter Heater Circuit- Voltage Below Normal or Shorted to Low Source