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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 196 (2 Wire) PID: PID 2558 SPN: 111 FMI: 4 Coolant Level Sensor 1 Circuit- Voltage Below Normal or Shorted to Low Source
Posted by PerDiezel Solutions on
Circuit DescriptionThe coolant level sensor is a switch and is used to measure the level of the engine coolant in the radiator top tank. The coolant level sensor is immersed in the coolant and returns a different signal voltage when immersed in coolant versus being out of coolant. The engine control module (ECM) monitors the change in the signal voltage to determine the level of the engine coolant. Component LocationThe engine coolant level sensor is typically located in the radiator top tank or surge tank. Refer to the OEM service manual for the location. Conditions for Running the DiagnosticsThis diagnostic...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 196 (3 Wire) PID: PID 111 SPN: 111 FMI: 4 Coolant Level Sensor 1 Circuit- Voltage Below Normal or Shorted to Low Source
Posted by PerDiezel Solutions on
Circuit DescriptionThe coolant level sensor is a switch and is used to measure the level of the engine coolant in the radiator top tank. The coolant level sensor is immersed in the coolant and returns a different signal voltage when immersed in coolant versus being out of coolant. The engine control module (ECM) monitors the change in the signal voltage to determine the level of the engine coolant. Component LocationThe engine coolant level sensor is typically located in the radiator top tank or surge tank. Refer to the OEM service manual for the location. Conditions for Running the DiagnosticsThis diagnostic...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1961 PID: SID 146 SPN: 2791 FMI: 15 EGR Valve Control Circuit Calculated Over Temperature- Data Valid But Above Normal Operational Range- Least Severe Level
Posted by PerDiezel Solutions on
Circuit DescriptionThe exhaust gas recirculation (EGR) valve is controlled by a brushless motor located on top of the EGR valve. The EGR valve motor uses three different motor legs to move the valve through its range of motion. The ECM uses the EGR motor A, B, and C wires to command the EGR valve to the appropriate position in order to meet EGR flow targets.The EGR valve motor contains three position sensors that detect the location of the EGR valve. These sensors report the position of the valve back to the ECM over the EGR valve position A, B, and...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1962 PID: SID 27 SPN: 641 FMI: 15 VGT Actuator Driver Over Temperature (Calculated)- Data Valid But Above Normal Operational Range- Least Severe Level
Posted by PerDiezel Solutions on
Circuit DescriptionThe variable geometry turbocharger (VGT) is electronically activated by the VGT actuator. The VGT actuator is a smart device and receives information via the J1939 data link from the primary engine control module (ECM). The VGT actuator performs its own diagnostics and reports malfunctions back to the primary engine ECM, using the J1939 data link. The ECM then decodes the error message and converts it to a fault code. Component LocationThe VGT actuator is located on the turbocharger bearing housing. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position or when the...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1963 PID: SID 332 SPN: 3482 FMI: 7 Aftertreatment Fuel Shutoff Valve 1- Mechanical System Not Responding Porperly or Out of Adjustment
Posted by PerDiezel Solutions on
Circuit DescriptionBefore active regeneration of the aftertreatment diesel particulate filter, a diagnostic test on the system is performed. The aftertreatment fuel injector opens and relieves fuel pressure in the line. The aftertreatment fuel pressure sensor must be reading atmospheric pressure at this point in the test. The aftertreatment fuel injector closes and the aftertreatment purge air actuator opens. This pressurizes the aftertreatment fuel system to vehicle air pressure. The diagnostic then checks to make sure the aftertreatment fuel pressure sensor is reading vehicle air pressure. The aftertreatment fuel shutoff valve then opens and allows pressurized fuel to enter the system....
