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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1981 PID: SPN: 3936 FMI: 15 Aftertreatment Diesel Particulate Filter System- Data Valid But Above Normal Operational Range- Least Severe Level
Posted by Diezel 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 X12 CM2350 X119B (2018 & Newer) Fault Code: 212 PID: PID 175 SPN: 175 FMI: 3 Engine Oil Temperature Sensor 1 Circuit- Voltage Above Normal or Shorted to High Source
Posted by Diezel Solutions on
Circuit DescriptionThe engine oil temperature sensor is a variable resistor sensor and is used to measure the temperature of the engine oil in the oil rifle. The engine control module (ECM) supplies 5 volts to the engine oil temperature signal circuit. The ECM monitors the change in voltage caused by changes in the resistance of the sensor to determine the engine oil temperature. When the oil temperature is cold, the sensor or thermistor resistance is high. The ECM signal voltage only pulls down a small amount through the sensor to a ground. Therefore, the ECM senses a high signal voltage...
Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 213 PID: PID 175 SPN: 175 FMI: 4 Engine Oil Temperature Sensor 1 Circuit- Voltage Below Normal or Shorted to Low Source
Posted by Diezel Solutions on
Circuit DescriptionThe engine oil temperature sensor is a variable resistor sensor and is used to measure the temperature of the engine oil in the oil rifle. The engine control module (ECM) supplies 5 volts to the engine oil temperature signal circuit. The ECM monitors the change in voltage caused by changes in the resistance of the sensor to determine the engine oil temperature. When the oil temperature is cold, the sensor or thermistor resistance is high. The ECM signal voltage only pulls down a small amount through the sensor to a ground. Therefore, the ECM senses a high signal voltage...
Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 214 PID: PID 175 SPN: 175 FMI: 0 Engine Oil Temperature- Data Valid But Above Normal Operating Range- Most Severe Level
Posted by Diezel Solutions on
Circuit DescriptionThe engine oil temperature sensor is a variable resistor sensor and is used to measure the temperature of the engine oil in the oil rifle. The engine control module (ECM) supplies 5 volts to the engine oil temperature signal circuit. The ECM monitors the change in voltage caused by changes in the resistance of the sensor to determine the engine oil temperature. When the oil temperature is cold, the sensor or thermistor resistance is high. The ECM signal voltage only pulls down a small amount through the sensor to a ground. Therefore, the ECM senses a high signal voltage...
Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 2182 PID: SID 79 SPN: 1072 FMI: 3 Engine Brake Actuator Driver 1 Circuit- Voltage Above Normal or Shorted to High Source
Posted by Diezel Solutions on
Circuit DescriptionThe Engine Control Module (ECM) controls engine brakes on cylinders 1, 2, and 3 by sending a signal on the engine brake solenoid number 1 signal circuit. If an engine brake is installed, there will be a jumper harness from this connector to the engine brake pass-through connectors on the rocker lever housing. Component LocationThe engine brake solenoids are located under the valve cover. The engine brake solenoids are controlled through the engine harness by the ECM. Conditions for Running the DiagnosticsThis diagnostic runs when the keyswitch is in the ON position and when the pulse width modulated (PWM)...