Manufacturers use a heater in the DEF tank to thaw the fluid and allow it to enter the exhaust I recently replaced the DEF tank heater unit, and after completion, the car's computer system does not recognize it as a new part and continues to. An active code merely means that the fault is happening “now. Aftertreatment Diesel Exhaust Fluid Tank Temperature Sensor,Enable "Source Address","163 - Catalyst Fluid Sensor" SAE J1939 Multiplexing - Aftertreatment Regeneration Permit Switch,Disable. System, to control vehicle exhaust emission. 3839 Aftertreatment #2 Diesel Exhaust Fluid Dosing Control Module Relay. The Cummins ECM also gets a feedback voltage signal from the DEF dosing unit relay. Malfunctioning line heater relay Malfunctioning line heater Diesel Aftertreatment Systems D e c e m b e r 0 3 2 0 1 9. Aftertreatment Diesel Exhaust Fluid Tank (DEF) Level Sensor, Replacement VAH, VHD, VN. The experimental data What this means is the after-treatment diesel exhaust fluid quality sensor (located in the DEF tank module (Figure 4) is a smart-device that communicates to the ECM via the J1939 data link. ![]() ![]() Diesel Aftertreatment Systems D e c e m b e r 0 3 2 0 1 9. ![]() ![]() Cruise Control/Vehicle Speed Setup Engine Temperature 1 Engine Fluid Level/Pressure 1 Power Takeoff Information Cruise Control/Vehicle Speed 1 aftertreatment 1 diesel exhaust fluid pump 1 motor speed. Aftertreatment 1 diesel exhaust fluid pump 1 motor speed.
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