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Cummins ISB4.5 CM2150 Fault Code: 3558 PID: SPN: 3361 FMI: 3 Aftertreatment Diesel Exhaust Fluid Dosing Unit – Voltage Above Normal or Shorted to High Source.
Posted by Diezel Solutions on
Circuit DescriptionThe diesel exhaust fluid dosing unit performs many functions, one of which is to generate adequate diesel exhaust fluid pressure in the lines using a pump to allow for dosing. The diesel exhaust fluid controller provides a battery voltage supply and a ground to the diesel exhaust fluid dosing unit. The controller also supplies a signal to the dosing unit to control the diesel exhaust fluid output. This signal changes based on the diesel exhaust fluid pressure being commanded.. Component LocationThe aftertreatment diesel exhaust fluid dosing unit location is original equipment manufacturer (OEM) dependent. Refer to the OEM service...
Cummins ISB4.5 CM2150 Fault Code: 3559 PID: SPN: 3361 FMI: 4 Aftertreatment Diesel Exhaust Fluid Dosing Unit – Voltage Below Normal or Shorted to Low Source.
Posted by Diezel Solutions on
Circuit DescriptionThe diesel exhaust fluid dosing unit performs many functions, one of which is to generate adequate diesel exhaust fluid pressure in the lines using a pump to allow for dosing. The diesel exhaust fluid controller provides a battery voltage supply and a ground to the diesel exhaust fluid dosing unit. The controller also supplies a signal to the dosing unit to control the diesel exhaust fluid output. This signal changes based on the diesel exhaust fluid pressure being commanded. Component LocationThe aftertreatment diesel exhaust fluid dosing unit location is original equipment manufacturer (OEM) dependent. Refer to the OEM service...
Cummins ISB4.5 CM2150 Fault Code: 356 PID: SPN: 132 FMI: 3 Engine Intake Air Mass Flow Sensor Circuit – Voltage Above Normal or Shorted to High Source.
Posted by Diezel Solutions on
Circuit DescriptionThe mass air flow sensor is a frequency based device. A constant voltage is applied to a heated wire. This wire is positioned in the air stream and is heated by the electrical current that the voltage produces. As air flows across it, it cools down. The heated wire or film is a positive temperature coefficient (ptc) resistor. This means that the resistance drops when the temperature drops. The drop in resistance allows more current to flow through the wire in order to maintain the programmed temperature. This current is changed to a frequency which is sent to the...
Cummins ISB4.5 CM2150 Fault Code: 3561 PID: SPN: 3361 FMI: 5 Aftertreatment Diesel Exhaust Fluid Dosing Unit – Current Below Normal or Open Circuit.
Posted by Diezel Solutions on
Circuit DescriptionThe aftertreatment diesel exhaust fluid dosing unit performs many functions, one of which is to generate adequate aftertreatment diesel exhaust fluid pressure in the lines using a pump to allow for dosing. The aftertreatment diesel exhaust fluid controller provides a battery voltage supply and a ground to the aftertreatment diesel exhaust fluid dosing unit. The controller also supplies a signal to the dosing unit to control the aftertreatment diesel exhaust fluid output. This signal changes based on the aftertreatment diesel exhaust fluid pressure being commanded. Component LocationThe aftertreatment diesel exhaust fluid dosing unit location is original equipment manufacturer (OEM)...
Cummins ISB4.5 CM2150 Fault Code: 3562 PID: SPN: 5491 FMI: 3 Aftertreatment Diesel Exhaust Fluid Line Heater Relay – Voltage Above Normal or Shorted to High Source.
Posted by Diezel Solutions on
Circuit DescriptionThe aftertreatment diesel exhaust fluid line heater relay provides the power supply to line heaters 1, 2, and 3. It is controlled by the aftertreatment diesel exhaust fluid controller. Component LocationThe aftertreatment diesel exhaust fluid line heater relay location is original equipment manufacturer (OEM) dependent. Refer to the OEM service manual for more information. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position. Conditions for Setting the Fault CodesThe aftreatment diesel exhaust fluid controller detects that the voltage in the diesel exhaust fluid line heater relay circuit is above a calibratible value....