SCR SYSTEM FAULT 805256 STORED IN VERY COLD WEATHER. After the vehicle is exposed to prolonged temperatures under -9°C (15.8°F) and is then driven a long distance when temperatures are above -9°C (15.8°F), the check engine light may be illuminated. The following fault may be stored in the Digital Diesel Electronics (DDE) 805256 - Active tank filling level sensor, signal: echo fault In low temperature under -9°C (15.8°F) a layer of ice may form in the active tank. This can result in an incorrect level measurement after the vehicle is driven.
SCR SYSTEM FAULT 805256 STORED IN VERY COLD WEATHER. After the vehicle is exposed to prolonged temperatures under -9°C (15.8°F) and is then driven a long distance when temperatures are above -9°C (15.8°F), the check engine light may be illuminated. The following fault may be stored in the Digital Diesel Electronics (DDE) 805256 - Active tank filling level sensor, signal: echo fault In low temperature under -9°C (15.8°F) a layer of ice may form in the active tank. This can result in an incorrect level measurement after the vehicle is driven.
