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Reason:Aftertreatment Diesel Exhaust Fluid Line Heater 2 Circuit – Current Below Normal or Open Circuit. Open circuit detected in the diesel exhaust fluid line heater 2. Effect:Possible reduced engine performance Circuit Description:The aftertreatment diesel exhaust fluid line heaters are used to defrost and/or prevent freezing of the diesel exhaust fluid lines. Component Location:The aftertreatment diesel exhaust fluid line heater 2 is located on the return line between the diesel exhaust fluid dosing unit and diesel exhaust fluid tank. Conditions for Running the Diagnostics:This diagnostic runs when the keyswitch is in the ON position and line heating is commanded ON. Conditions...

Reason:Injector Solenoid Driver Cylinder 2 Circuit – Current Below Normal or Open Circuit. Current detected at injector 2 when voltage is turned OFF. Effect:Possible reduced engine performance. Circuit Description:The injector solenoid valves control fueling quantity and injection timing. The engine control module (ECM) energizes the solenoid by closing a high-side and a low-side switch. Each injector circuit has a dedicated low side switch that completes the circuit path to ground inside the ECM. Component Location:The engine harness connects the ECM to the pass-through connector(s) that are located in the rocker housing. Internal injector harnesses are located under the valve cover...

Reason:Aftertreatment Diesel Particulate Filter Intake Temperature – Data Valid But Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter intake temperature sensor reading has exceeded the maximum engine protection temperature limit. Effect:Progressive power and/or speed derate increasing in severity from time of alert. If the Engine Protection Shutdown feature is enabled, the engine will shut down 30 seconds after the red STOP lamps starts flashing. Circuit Description:The aftertreatment diesel particulate filter temperature sensor module is a smart device that communicates with the engine control module via the J1939 data link. The aftertreatment diesel partculate filter temperature...

Reason:Aftertreatment Diesel Particulate Filter Outlet Temperature – Data Valid But Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum engine protection temperature limit. Effect:Progressive power and/or speed derate increasing in severity from time of alert. If the Engine Protection Shutdown feature is enabled, the engine will shut down 30 seconds after the red STOP lamps starts flashing. Circuit Description:The aftertreatment diesel particulate filter temperature sensor module is a smart device that communicates with the engine control module via the J1939 data link. The aftertreatment diesel partculate filter temperature...

Reason:Aftertreatment Diesel Oxidation Catalyst Intake Temperature Sensor Circuit – Voltage Below Normal, or Shorted to Low Source. Low signal voltage detected at the catalyst intake sensor circuit. Effect:Possible reduced engine performance. Circuit Description:The aftertreatment diesel particulate filter temperature sensor module is a smart device that communicates with the engine control module via the J1939 data link. The aftertreatment diesel partculate filter temperature sensor module performs its own internal diagnostics and reports malfunctions back to the engine control module using the J1939 data link. The aftertreatment diesel particulate filter temperature sensor module is used to measure the aftertreatment diesel oxidation catalyst...