Cumminz
Cummins ISB4.5 CM2150 Fault Code: 3237 PID: SID 254 SPN: 4340 FMI: 3 Aftertreatment Diesel Exhaust Fluid Line Heater 1 Circuit – Voltage Above Normal or Shorted to High Source.
Posted by Diezel Solutions on
Circuit DescriptionThe aftertreatment diesel exhaust fluid line heater 1 is controlled by the ECM, and receives power through the switch side of the diesel exhaust fluid line heater relay. Component LocationThe aftertreatment diesel exhaust fluid line heater 1 is located on the supply line between the diesel exhaust fluid dosing unit and the aftertreatment nozzle. Conditions for Running the DiagnosticsThis diagnostic runs when the keyswitch is in the ON position and the heater is commanded on. Conditions for Setting the Fault CodesThe ECM detects that the line heater voltage is above a calibratible value. Action Taken When the Fault Code...
Cummins ISB4.5 CM2150 Fault Code: 3238 PID: SPN: 4340 FMI: 4 Aftertreatment Diesel Exhaust Fluid Line Heater 1 Circuit – Voltage Below Normal or Shorted to Low Source.
Posted by Diezel Solutions on
Circuit DescriptionThe aftertreatment diesel exhaust fluid line heater 1 is controlled by the ECM, and receives power through the switch side of the diesel exhaust fluid line heater relay. Component LocationThe aftertreatment diesel exhaust fluid line heater 1 is located on the supply line between the diesel exhaust fluid dosing unit and the aftertreatment nozzle. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position and the heater is commanded ON. Conditions for Setting the Fault CodesThe ECM detects that the line heater voltage is above a calibratible value. Action Taken When the Fault...
Cummins ISB4.5 CM2150 Fault Code: 3239 PID: SPN: 4342 FMI: 3 Aftertreatment Diesel Exhaust Fluid Line Heater 2 Circuit – Voltage Above Normal or Shorted to High Source.
Posted by Diezel Solutions on
Circuit DescriptionThe aftertreatment diesel exhaust fluid line heater 2 is controlled by the aftertreatment diesel exhaust fluid controller, and receives power through the diesel exhaust fluid line heater power relay. Component LocationThe aftertreatment diesel exhaust fluid line heater 2 is located on the return line between the dosing unit and the diesel exhaust fluid tank. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position and the heater is commanded on. Conditions for Setting the Fault CodesThe aftreatment diesel exhaust controller detects that the line heater voltage is above a calibratible value. Action Taken...
Cummins ISB4.5 CM2150 Fault Code: 324 PID: SID 6 SPN: 653 FMI: 5 Injector Solenoid Driver Cylinder 3 Circuit – Current Below Normal or Open Circuit.
Posted by Diezel Solutions on
Circuit DescriptionThe injector solenoid valves control fueling quantity and injection timing. The electronic control module (ECM) energizes the solenoid by closing a high-side and a low-side switch. There are two high-side switches and four low-side switches inside the ECM. The injectors for cylinder numbers 1 and 2 (front bank) share a single high-side switch that connects the injector circuit to the source of high voltage inside the ECM. Likewise, the injectors for cylinder numbers 3 and 4 (rear bank) also share a single high-side switch. Each injector circuit has a dedicated low-side switch that completes the circuit path to ground...
Cummins ISB4.5 CM2150 Fault Code: 3242 PID: SPN: 3363 FMI: 7 Aftertreatment Diesel Exhaust Fluid Tank Heater – Mechanical System Not Responding or Out of Adjustment.
Posted by Diezel Solutions on
Circuit DescriptionThe aftertreatment diesel exhaust fluid tank heater keeps the diesel exhaust fluid from freezing in the diesel exhaust fluid tank. The tank heater consists of an electrically powered tank heater control valve which controls the flow of engine coolant to a heating coil inside the diesel exhaust fluid tank. The tank heater control valve opens to allow coolant to flow to the heating coil when heating is commanded, and closes when heating is no longer required. Component LocationThe diesel exhaust fluid tank heater control valve is located near the diesel exhaust fluid tank. Specific location will vary depending on...