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Reason:Aftertreatment Diesel Particulate Filter Outlet Temperature Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage or open circuit detected at the aftertreatment diesel particulate filter outlet temperature 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...

Reason:Injector Solenoid Driver Cylinder 4 Circuit – Current Below Normal or Open Circuit. Curren detected at injector 4 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 Outlet Temperature Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the aftertreatment diesel particulate filter outlet temperature 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...

Reason:Aftertreatment Diesel Particulate Filter Outlet Temperature – Data Erratic, Intermittent, or Incorrect. The aftertreatment diesel particulate filter outlet temperature is not changing with engine operating conditions. 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 intake...

Reason:SAE J1939 Multiplexed Accelerator Pedal or Lever Sensor System – Abnormal Update Rate. The ECM expected information from a multiplexed accelerator pedal or lever sensor but did not receive it soon enough or did not receive it at all. Effect:Engine will only idle. Circuit Description:Normally, switches, accelerators, and other components are connected to the engine control module (ECM) directly through individual wires. Multiplexing allows those same components to be hard wired to an original equipment manufacturer (OEM) vehicle electronic control unit (VECU) or transmission electronic control unit (ECU) in the cab. Then component values and states from components such as...