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Cummins ISB4.5 CM2150 Fault Code: 3426 PID: SPN: 4346 FMI: 3 Aftertreatment Diesel Exhaust Fluid Line Heater 4 Circuit – Voltage Above Normal or Shorted to High Source.
Posted by PerDiezel Solutions on
Circuit DescriptionThe aftertreatment diesel exhaust fluid line heater 4 is powered and controlled by the aftertreatment diesel exhaust fluid controller. Component LocationThe aftertreatment diesel exhaust fluid line heater 4 is internal to the aftertreatment diesel exhaust fluid dosing unit and can not be serviced separately. 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 aftertreatment diesel exhaust fluid controller detects that the heater voltage is above a calibratible value. Action Taken When the Fault Code is Active-The electronic control module (ECM) illuminates...
Cummins ISB4.5 CM2150 Fault Code: 3429 PID: SID 254 SPN: 4346 FMI: 5 Aftertreatment Diesel Exhaust Fluid Line Heater 4 Circuit – Current Below Normal or Open Circuit
Posted by PerDiezel Solutions on
Circuit DescriptionThe aftertreatment diesel exhaust fluid line heater 4 is powered and controlled by the aftertreatment diesel exhaust fluid controller. Component LocationThe aftertreatment diesel exhaust fluid line heater 4 is internal to the aftertreatment diesel exhaust fluid dosing unit and can not be serviced separately. 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 heater circuit is open. Action Taken When the Fault Code is Active-The electronic control module (ECM) illuminates the amber CHECK ENGINE lamp and/or the malfunction...
Cummins ISB4.5 CM2150 Fault Code: 343 PID: SID 254 SPN: 629 FMI: 12 Electronic Control Module Warning Internal Hardware Failure – Bad Intelligent Device or Component.
Posted by PerDiezel Solutions on
Circuit DescriptionThe electronic control module (ECM) receives constant voltage from the batteries through the unswitched battery wires that are connected directly to the positive (+) battery post. The ECM receives switched battery input through the vehicle keyswitch wire when the vehicle keyswitch is turned on. Component LocationThe ECM is connected to the battery by the OEM power harness through the ECM battery supply stub. This provides a constant power supply for the ECM. The location of the battery will vary with the OEM. Refer to the OEM troubleshooting and repair manual for component location. Conditions for Running the DiagnosticsThis diagnostic...
Cummins ISB4.5 CM2150 Fault Code: 346 PID: 253 SPN: 630 FMI: 12 Engine Control Module Calibration Memory Software – Bad Intelligent Device or Component.
Posted by PerDiezel Solutions on
Circuit DescriptionThe accelerator interlock switch and powertrain protection torque limit switch, clutch pedal position switch and engine protection shutdown manual override switch, idle shutdown accessory relay and engine brake lamp output, switched maximum engine operating speed and governor type switch are all outputs or switched inputs from the ECM that can be enabled or disabled using INSITE™ electronic service tool. Many of the outputs and switched inputs share a common wire on the OEM wiring harness. The following features share common wires in the OEM harness: -Accelerator Interlock Switch and Powertrain Protection Torque Limit Switch-Clutch Pedal Position Switch and Engine...
Cummins ISB4.5 CM2150 Fault Code: 3492 PID: SPN: 251 FMI: 10 Real Time Clock – Abnormal Rate of Change.
Posted by PerDiezel Solutions on
Circuit DescriptionThe real-time clock consists of a timing chip internal to the engine control module (ECM) which monitors engine off time, i.e. how long the engine has been shut down. Component LocationThe real time clock is a timing chip internal to the ECM and can not be serviced separately. Conditions for Running the DiagnosticsThis diagnostic runs after initial key-on and takes approximately 15 minutes to complete. Conditions for Setting the Fault CodesThe engine off timer is not counting correctly and does not match other timers in the ECM. Action Taken When the Fault Code is Active-The ECM illuminates the amber...
