P209F · Manufacturer communications

RAM · 2026-02-21

Flash: Diesel Exhaust Fluid Control Unit (DCU) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P20BC-00 - Reductant Suction Line Heater Control Circuit High. - in Active or Stored status. ● P202C-00 - Reductant Tank Heater Control Circuit High. - in Active or Stored status. ● P20E8-00 - Reductant Pressure Too Low. - in Active or Stored status. ● P209F-00 - Reductant Tank Heater Control Circuit Performance. - in Active or Stored status. ● P208B-00 - Reductant Pump 1 Control Performance. - in Active or Stored status.** Customers may also comment one or more the following: ● "Service Diesel Exhaust Fluid (DEF) System See Dealer" message in the…

RAM · 2026-02-21

Flash: Diesel Exhaust Fluid Control Unit (DCU) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P20BC-00 - Reductant Suction Line Heater Control Circuit High. - in Active or Stored status. ● P202C-00 - Reductant Tank Heater Control Circuit High. - in Active or Stored status. ● P20E8-00 - Reductant Pressure Too Low. - in Active or Stored status. ● P209F-00 - Reductant Tank Heater Control Circuit Performance. - in Active or Stored status. ● P208B-00 - Reductant Pump 1 Control Performance. - in Active or Stored status.** ● P218F-00 - Reductant No Flow Detected. ● P249E-00 - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High.…

RAM · 2016-07-26

Flash: Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set. Several software improvements are available for the following conditions. The Following DTC has been changed from a two trip fault to a one trip fault: · U1A24 - Lost Communication With Ammonia Sensor. Prevent or reduce MIL illumination when no defect is present for the following DTCs. These faults have been changed from a one trip fault to a two trip fault: · P0201 - P0206 - Fuel Injector X Circuit/Open. · P049D - EGR Control Position…

FORD · 2014-05-01

FORD: DIAGNOSTIC TROUBLE CODE (DTC) P209F IN POWERTRAIN CONTROL MODULE (PCM) MAY EXPERIENCE ILLUMINATION OF MALFUNCTION INDICATOR LAMP (MIL) IF VEHICLE IS OPERATING IN COLD AMBIENT TEMPERATURES BELOW 20F/-7C. MODEL 2013-2014 F-SUPER DUTY. *PE