P21C4. Definition: (DieselExhaustFluid) Reductant Line HeaterRelay Control Circuit High. Description: The Powertrain Control Module (PCM) controls the DEF Heaters via datalink communication with the DieselExhaustFluidDosing Control Unit (DEF DCU - sometimes referred to as the Selective Catalytic Reduction (SCR) Module).. "/>
Cummins ISX Engine Fault Codes(Codes 501-999) 546 Fuel Delivery Pressure Sensor Circuit - Voltage Above Normal or Shorted to High Source. 547 Fuel Delivery Pressure Sensor Circuit - Voltage Below Normal or Shorted to Low Source. 555 Crankcase Pressure - Data Valid But Above Normal Operating Range - Moderately Severe Level. Air Conditioner and Heater Units ; Air Conditioner Compressor and Mounting ; Air Ducts ; Bed ... M14x1.50. Stabilizer Bar Link to Stabilizer Bar. M10x1.5. Sway Bar Link to Sway Bar. Diesel Exhaust Fluid Tank Strap. Pump Bracket to Frame ... Diesel Exhaust Fluid Dosing Control Unit . MSRP $347.00 . 68458603AA . DIESEL EXHAUST FLUID DOSING. A SCR heater controller ... that warms a little furnace using a power wirewound resistor in 60Hz line. The heat level (90 -250 graus celcius) is controlling by a output of a PLC (S7300), using voltage output 0-5V or/and 4m-20mA and a feedback inptut of the same. I used a fluid extractor (mighty vac) but any clean fluid extractor will work. 4251: Aftertreatment 1 DieselExhaustFluidDosingUnitHeater Temperature - Abnormal Rate of Change Potassium chloride liquid 40 mEq per NG tube for two doses, 2 Neutra-Phos capsules in water per NG tube Once you have your dosing guidelines and the value, you will likely have to multiply one by the other in order to get the dosing range for. Jan 03, 2013 · Refer to the online wiring diagram for locations. Dec 11 2013 4426 -2013-2014 F-Super Duty - 6.7L Diesel - Diagnostic Trouble Codes (DTC) P2201, P2209, P229E, P22A7, P220F - NOx Sensor And Module Replacement..