Cumminz
Cummins ISB4.5 CM2150 Fault Code: 227 PID: SID 211 SPN: 3510 FMI: 3 Sensor Supply 2 Circuit – Voltage Above Normal or Shorted to High Source.
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Circuit DescriptionThe sensor supply 2 of the electronic control module (ECM) provides a 5 volt supply for the accelerator position number 2 sensor, remote accelerator position sensor, engine coolant level sensor, OEM pressure sensor, and diesel exhaust fluid temperature/level sensor. Component LocationThe sensor supply 2 is located in the ECM. The supply voltage is spliced off in the engine harness to each sensor it supports. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position or when the engine is operating. Conditions for Setting the Fault CodesThe ECM detects that the sensor supply 2...
Cummins ISB4.5 CM2150 Fault Code: 2271 PID: 27 SPN: 27 FMI: 4 EGR Valve Position Circuit – Voltage Above Normal or Shorted to High Source.
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Circuit DescriptionThe engine control module (ECM) uses the EGR valve position sensor to determine whether or not the valve is meeting the commanded position. The ECM supplies 5 volts to the EGR valve position signal circuit, and the EGR valve position sensor outputs a voltage signal to the ECM, based on the valve position. The ECM converts this signal into a percentage value, 0 to 100, indicating valve position. A fully-opened valve is equivalent to 100 percent. Component LocationThe EGR valve position sensor is internal to the EGR valve assembly and can not be serviced separately. Conditions for Running the...
Cummins ISB4.5 CM2150 Fault Code: 2272 PID: 27 SPN: 27 FMI: 4 EGR Valve Position Circuit – Voltage Below Normal or Shorted to Low Source.
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Circuit DescriptionThe engine control module (ECM) uses the EGR valve position sensor to determine whether or not the valve is meeting the commanded position. The ECM supplies 5 volts to the EGR valve position signal circuit, and the EGR valve position sensor outputs a voltage signal to the ECM based on the valve position. The ECM converts this signal into a percentage value, 0 to 100, indicating valve position. A fully-opened valve is equivalent to 100 percent. Component LocationThe EGR valve position sensor is internal to the EGR valve assembly and can not be serviced separately. Conditions for Running the...
Cummins ISB4.5 CM2150 Fault Code: 2288 PID: 103 SPN: 103 FMI: 0 Turbocharger 1 Speed – Data Valid but Above Normal Operating Range – Least Severe Level.
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Circuit DescriptionThe turbocharger speed sensor is a variable reluctance speed sensor. It consists of a coil wire and an iron core. The target on the turbocharger shaft is a ground flat in the center of the shaft. As the flat on the turbocharger shaft spins past the speed sensor, a signal is generated. The engine control module (ECM) interprets this signal and converts it to a turbocharger speed reading. Component LocationThe turbocharger speed sensor is mounted in the center housing of the turbocharger. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the engine is running. Conditions for Setting the...
Cummins ISB4.5 CM2150 Fault Code: 2311 PID: SID 18 SPN: 633 FMI: 11 Electronic Fuel Injection Control Valve Circuit – Condition Exists.
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Circuit DescriptionThe circuit is a pulse width modulated driver in the engine control module (ECM) that controls the fuel pump actuator. The actuator is grounded in the ECM. The ECM varies the current to this valve to provide the correct fuel flow to the high-pressure pump, based on engine operating conditions. The fuel pump actuator valve is a normally open valve. High circuit resistance can cause fuel pressure to be higher than commanded at light loads. Component LocationThe fuel pump actuator valve is located on the engine-mounted fuel pump housing. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the...