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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 272 PID: SID 126 SPN: 1347 FMI: 3 Engine Fuel Pump PRessurizing Assembly 1 Circuit- Voltage Above Normal or Shorted to High Source
Posted by PerDiezel Solutions on
Circuit DescriptionThe circuit is a pulse-width modulation (PWM) driver in the engine control module (ECM) that controls the fuel pump actuator. The actuator is grounded in the ECM. The actuator is normally open. The PWM duty cycle to the fuel pump actuator depends on the difference between desired rail pressure and sensed rail pressure. Component LocationThe high-pressure fuel pump is mounted to the gear housing. The fuel pump actuator is mounted on the fuel pump. The fuel pressure sensor is mounted in the high pressure fuel rail. The fuel pressure relief valve is mounted on the high pressure fuel rail....
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 2738 PID: SID 237 SPN: 626 FMI: 3 Start Enable Device 1 Circuit (Ether Injection)- Voltage Above Normal or Shorted to High Source
Posted by PerDiezel Solutions on
Circuit DescriptionThe ether injection circuit is a device used by the engine to control the ether injection operation. The ether injection circuit utilizes a Pulse Width Modulated (PWM) signal. A PWM signal is pulsed voltage signal between 0-VDC and system voltage. The frequency of the pulsed voltage signal is dependent on the application requirement. Component LocationThe control solenoid location varies by OEM. Refer to the appropriate OEM service manual to determine the location. Conditions for Running the DiagnosticsThis diagnostic runs when the keyswitch is in the ON position and when the pulse width modulated (PWM) device is getting energized or...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 2739 PID: SID 237 SPN: 626 FMI: 4 Start Enable Device 1 Circuit (Ether Injection)- Voltage Below Normal or Shorted to Low Source
Posted by PerDiezel Solutions on
Circuit DescriptionThe ether injection circuit is a device used by the engine to control the ether injection operation. The ether injection circuit utilizes a Pulse Width Modulated (PWM) signal. A PWM signal is pulsed voltage signal between 0-VDC and system voltage. The frequency of the pulsed voltage signal is dependent on the application requirement. Component LocationThe control solenoid location varies by OEM. Refer to the appropriate OEM service manual to determine the location. Conditions for Running the DiagnosticsThis diagnostic runs when the keyswitch is in the ON position and when the pulse width modulated (PWM) device is getting energized or...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 2754 PID: PID 81 SPN: 81 FMI: 16 Engine Diesel Particulate Filter Intake Pressure- Data Valid But Above Normal Operating range- Moderately Severe Level
Posted by PerDiezel Solutions on
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...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 2764 PID: PID 131 SPN: 1209 FMI: 16 Exhaust Gas Pressure- Data Valid But Above Normal Operating Range- Moderately Severe Level
Posted by PerDiezel Solutions on
Circuit DescriptionThe exhaust gas pressure sensor is used to measure exhaust gas pressure in the exhaust manifold. This information is used by the engine control module (ECM) to control emissions and exhaust gas recirculation (EGR) valve operation. The ECM provides a 5 volt supply to the exhaust gas pressure sensor on the sensor supply circuit. The ECM also provides a ground on the sensor return circuit. The exhaust gas pressure sensor provides a signal to the ECM on the exhaust gas pressure sensor signal circuit. This sensor signal voltage changes, based on the pressure in the exhaust manifold. Component LocationThe...
