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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1844 PID: PID 101 SPN: 101 FMI: 4 Crankcase Pressure Circuit- Voltage Below Normal or Shorted to Low Source
Posted by PerDiezel Solutions on
Circuit DescriptionThe crankcase pressure sensor is used to monitor the pressure inside the crankcase. The engine control module (ECM) supplies the crankcase pressure sensor a 5 volt reference voltage. When the crankcase pressure is low, the sensor signal voltage is low. When the crankcase pressure is high, the sensor signal voltage is near the 5 volt reference voltage. The ECM monitors the crankcase pressure signal circuit voltage to calculate the pressure of the air within the crankcase. Component LocationThe crankcase pressure sensor is located near the crankcase ventilation filter. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1845 PID: PID 97 SPN: 97 FMI: 3 Water In Fuel Indicator Sensor Circuit- Voltage Above Normal or Shorted to High Source
Posted by PerDiezel Solutions on
Circuit DescriptionThe water-in-fuel sensor is in the fuel filter. The engine control module (ECM) provides a 5 volt reference signal to the water-in-fuel sensor. When the water collected in the fuel filter covers the sensor probes, the water-in-fuel sensor pulls the 5-VDC reference voltage down, indicating high water accumulation in the fuel filter. Component LocationThe water-in-fuel sensor is integrated into the bottom of the OEM supplied suction fuel filter. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running. Conditions for Setting the Fault CodesThe Engine Control Module...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1846 PID: PID 97 SPN: 97 FMI: 4 Water In Fuel Indicator Sensor Circuit- Voltage Below Normal or Shorted to Low Source
Posted by PerDiezel Solutions on
Circuit DescriptionThe water-in-fuel sensor is in the fuel filter. The engine control module (ECM) provides a 5 volt reference signal to the water-in-fuel sensor. When the water collected in the fuel filter covers the sensor probes, the water-in-fuel sensor pulls the 5-VDC reference voltage down, indicating high water accumulation in the fuel filter. Component LocationThe water-in-fuel sensor is integrated into the bottom of the OEM supplied suction fuel filter. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running. Conditions for Setting the Fault CodesThe Engine Control Module...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1852 PID: SPN: 97 FMI: 16 Water-In-Fuel Indicator- Data Valid But Above Normal Operating Range- Moderately Severe Level
Posted by PerDiezel Solutions on
Circuit DescriptionThe water-in-fuel sensor is attached to the fuel filter. The engine control module (ECM) provides a 5 volt reference signal to the water-in-fuel sensor. When the water collected in the fuel filter covers the sensor probes, the water-in-fuel sensor pulls the 5-VDC reference voltage to ground, indicating high water accumulation in the fuel filter. Component LocationThe water-in-fuel sensor is integrated into the bottom of the OEM supplied suction fuel filter. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the engine is running. Conditions for Setting the Fault CodesThe Engine Control Module (ECM) detected water in fuel for an...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1866 PID: PID 411 SPN: 411 FMI: 2 Exhaust Gas Recirculation Differential Pressure- Data Erratic, Intermittent, or Incorrect
Posted by PerDiezel Solutions on
Circuit DescriptionThe exhaust gas recirculation (EGR) differential pressure sensor has two ports that sense exhaust pressure. The sensor outputs a voltage which represents the pressure difference between the two ports located across an orifice in the EGR tube. The engine control module (ECM) uses this pressure to determine how much exhaust gas is flowing in the EGR connection tube to the intake manifold. This information is used to control the EGR valve for correct emission levels.The ECM provides a 5 volt supply to the EGR differential pressure sensor on the sensor supply circuit. The ECM also provides a ground on...
