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Verify the ECM calibration is correct. Check the calibration revision history found on QuickServe™ Online for applicable fixes to the calibration stored in the ECM. If necessary, calibrate the ECM.

This fault code is set when the inlet face of the DOC is detected to be plugged with soot. The engine is taking corrective action to clean the DOC. No troubleshooting is required if this is the only fault. This is an information fault only.

Possible repairs:

1)If necessary, calibrate the ECM.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe™ Online for applicable fixes to the calibration stored in the ECM. If necessary, calibrate the ECM.

This fault code is logged when the electronic control module (ECM) has calculated DOC efficiency to be less than required to successfully complete a regeneration.

Possible causes:

1)Soot plugging the front face of the aftertreatment diesel oxidation catalyst
2)Engine oil or fuel contamination of the aftertreatment diesel oxidation catalyst
3)Cracked or contaminated aftertreatment diesel oxidation catalyst
4)Damage in the aftertreatment fuel injection system
5)Leaking exhaust system between the turbocharger and the diesel oxidation catalyst
6)An in-range malfunction of the aftertreatment diesel oxidation catalyst or the aftertreatment diesel particulate filter inlet temperature sensor can cause this fault code. Make sure there are not any fault codes related to the aftertreatment temperature sensors before following this troubleshooting tree.

Possible repairs:

1)If necessary, calibrate the ECM.
2)Repair or replace the damaged or leaking exhaust system components
3)Replace the aftertreatment DOC.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on Quickserve™ Online for applicable fixes to the calibration stored in the ECM.

Note: This fault code indicates that the aftertreatment diesel particulate filter requires maintenance by performing a stationary regeneration procedure. This is a maintenance procedure only and is not covered by Cummins Inc. warranty.

Note: Repeated occurrences of this fault code may indicate the engine requires frequent regeneration. Refer to symptom tree t147 (Aftertreatment Diesel Particulate Filter-Excessive Automatic and/or Stationary Regeneration) to identify the cause of frequent regeneration.

Possible causes:

1)The engine has been operating in light load operating conditions that prevent exhaust temperatures from being high enough to regenerate the aftertreatment diesel particulate filter
2)Possible engine damage that causes excessive black smoke to be generated.

The aftertreatment diesel particulate filter soot loading can be classified into four different stages. As the soot load increases, the aftertreatment diesel particulate filter lamp and the Cummins CHECK ENGINE (Amber) or STOP ENGINE (Red) lamp will operate according to the table below. Inadequate temperature for the exhaust gases entering the aftertreatment system can be a cause of high soot loads in the aftertreatment diesel particulate filter. The duty cycle of the application will need to be increased in order to prevent excessive soot from accumulating in the filter.

Possible repairs:

1)If necessary, recalibrate the ECM.
2)Check for active fault codes that may have become active during the regeneration event. Troubleshoot any active fault codes

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.

When the engine coolant temperature nears the engine protection limits, the EGR valve will be closed to reduce the coolant temperature. This fault code is used as an information fault code, only indicating that the EGR valve has closed. No failure has occurred to cause this fault code. Other engine protection fault codes will be active if the engine coolant temperature has exceeded the engine protection limits.

No repair is necessary.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.

This fault becomes active when the ECM detects an open in the fuel pump actuator circuit. Causes of this fault code are a short circuit to a positive voltage or an open circuit in the fuel pump actuator circuit. If there is high harness resistance or an intermittent open circuit, Fault Code 2311 can have high inactive counts. If the fault code is intermittent, look for causes of an intermittent open circuit such as loose pins and bad connections. If the fault code is intermittent, look closely for loose wire connections at the ECM connector. Also, if the fault code is intermittent, wiggle the harness and the electronic fuel control.

Possible repairs:

1)Replace the fuel pump actuator.
2)Repair or replace the engine harness
3)Replace the ECM.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.

The aftertreatment system will try to meet target temperatures at the outlet of the diesel oxidation catalyst during a regeneration event. This fault code is activated when the control system detects that excessive fuel is entering the exhaust system, in an attempt to meet the target temperatures at the diesel oxidation catalyst outlet temperature sensor.

Possible causes:

1)Soot plugging the front face of the aftertreatment diesel oxidation catalyst
2)Engine oil or fuel contamination of the aftertreatment diesel oxidation catalyst
3)A cracked or contaminated aftertreatment diesel oxidation catalyst
4)A leaking exhaust system between the turbocharger and the aftertreatment diesel oxidation catalyst
5)The duty cycle of the vehicle is not high enough to provide adequate exhaust temperatures for a complete regeneration event.

Possible repairs:

1)Repair or replace the damaged exhaust system component.
2)Perform the stationary regeneration procedure

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.

The aftertreatment system will try to meet target temperatures at the inlet of the diesel oxidation catalyst prior to beginning a stationary regeneration event. This fault code is activated if the engine is not able to meet the commanded minimum exhaust temperature required at the inlet of the aftertreatment system. This is prior to any aftertreatment fuel injection into the exhaust system.

Possible caused:

1)A leaking exhaust system between the turbocharger and the aftertreatment diesel oxidation catalyst
2)Excessive exhaust temperature loss between the turbocharger outlet and the inlet of the aftertreatment system.

Possible repairs:

1)Replace the damaged aftertreatment temperature sensor.
2)Repair or replace the damaged exhaust system component.