cumminz
Cummins ISB4.5 CM2150 Fault Code: 477 PID: 444 SPN: 444 FMI: 1 Battery 2 Voltage – Data Valid but Below Normal Operating Range – Moderately Severe Level.
Posted by PerDiezel Solutions on
Circuit DescriptionThe aftertreatment diesel exhaust fluid controller communicates with the ECM and controls the heating, dosing, and purging of the aftertreatment diesel exhaust fluid system. Component LocationThe aftertreatment diesel exhaust fluid controller is installed on the vehicle by the OEM. Refer to the OEM Service Manual for component location. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position. Conditions for Setting the Fault CodesThe aftertreatment diesel exhaust fluid controller detects that the battery supply voltage is lower than a threshold. Action Taken When the Fault Code is Active-The ECM illuminates the amber CHECK...
Cummins ISB4.5 CM2150 Fault Code: 478 PID: 444 SPN: 444 FMI: 0 Battery 2 Voltage – Data Valid but Above Normal Operating Range – Moderately Severe Level.
Posted by PerDiezel Solutions on
Circuit DescriptionThe aftertreatment diesel exhaust fluid controller communicates with the ECM and controls the heating, dosing, and purging of the aftertreatment diesel exhaust fluid system. Component LocationThe aftertreatment diesel exhaust fluid controller is installed on the vehicle by the OEM. Refer to the OEM Service Manual for component location. Conditions for Running the Diagnostics-This diagnostic runs continuously when the keyswitch is in the ON position. Conditions for Setting the Fault Codes-The aftertreatment diesel exhaust fluid controller detects the battery supply voltage is greater than a threshold. Action Taken When the Fault Code is ActiveThe ECM illuminates the amber CHECK ENGINE...
Cummins ISB4.5 CM2150 Fault Code: 491 PID: SID 88 SPN: 1189 FMI: 3 Turbocharger 2 Wastegate Control Circuit – Voltage Above Normal or Shorted to High Source.
Posted by PerDiezel Solutions on
Circuit DescriptionThe wastegate actuators are devices used by the ECM to control boost pressure. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position. Conditions for Setting the Fault CodesThe turbocharger 2 wastegate control signal is detected to be at system voltage when the voltage is turned off. Action Taken When the Fault Code is ActiveThe ECM illuminates the amber CHECK ENGINE light immediately when the diagnostic runs and fails. Conditions for Clearing the Fault CodeThe ECM will turn off the amber CHECK ENGINE light immediately after the diagnostic runs and passes. Possible Causes-A...
Cummins ISB4.5 CM2150 Fault Code: 492 PID: SID 88 SPN: 1189 FMI: 4 Turbocharger 2 Wastegate Control Circuit – Voltage below normal, or shorted to low source.
Posted by PerDiezel Solutions on
Circuit DescriptionThe wastegate actuators are devices used by the ECM to control boost pressure. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position. Conditions for Setting the Fault CodesThe turbocharger 2 wastegate control signal is not detected to be system voltage when the signal is turned on. Action Taken When the Fault Code is ActiveThe ECM illuminates the amber CHECK ENGINE light immediately when the diagnostic runs and fails. Conditions for Clearing the Fault CodeThe ECM will turn off the amber CHECK ENGINE light immediately after the diagnostic runs and passes. Possible Causes-A...
Cummins ISB4.5 CM2150 Fault Code: 4948 PID: SPN: 6874 FMI: 3 Performance Bias Selection Switch Circuit – Voltage Above Normal or Shorted to High Source.
Posted by PerDiezel Solutions on
Circuit DescriptionThe User Adjustable Fuel Economy feature provides three different engine operation modes through a three positon switch. The driver can balance fuel economy and vehicle power performance by running on different engine operation modes. Component LocationThe performance bias selection switch is installed in the dashboard or any other place in the cab that the driver can easily get access. Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position. Conditions for Setting the Fault CodesThe engine control module (ECM) detected the performance bias selection switch signal voltage was out of range high. Action...
