Cumminz

Cummins ISB4.5 CM2150 Fault Code: 4642 PID: SPN...

Circuit DescriptionThe water-in-fuel sensor is attached to the fuel filter. The engine control module (ECM) provides a 5 volt reference signal to the water-in-fuel sensor. When the water collected in...

Cummins ISB4.5 CM2150 Fault Code: 4572 PID: SPN...

Circuit DescriptionNormally, switches, accelerators, and other components are connected to the engine control module (ECM) through individual wires. Multiplexing allows those same components to be hard wired to an original...

Cummins ISB4.5 CM2150 Fault Code: 452 PID: SPN:...

Circuit DescriptionThe fuel delivery pressure sensor responds to pressure changes in the fuel rail. The fuel delivery pressure sensor has a 5 volt supply circuit, a sensor signal voltage, and...

Cummins ISB4.5 CM2150 Fault Code: 451 PID: SPN:...

Circuit DescriptionThe fuel delivery pressure sensor responds to pressure changes in the fuel rail. The fuel delivery pressure sensor has a 5 volt supply circuit, a sensor signal voltage, and...

Cummins ISB4.5 CM2150 Fault Code: 449 PID: SPN:...

Circuit DescriptionThe electronic control module (ECM) monitors engine-operating conditions, including the reading of fuel rail pressure, and changes the flow command to either increase (OPEN the fuel pump actuator) or...

Cummins ISB4.5 CM2150 Fault Code: 4484 PID: SPN...

Circuit DescriptionThe air shutoff valve is either an original equipment manufacturer (OEM) or Cummins® installed component that shuts off the flow of air into the intake of the engine in...