Reductant Heaters
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
The reductant heaters maintain the diesel exhaust fluid (DEF) in a liquid state during cold ambient temperatures. There are three heating elements in the system, each receiving voltage from the glow plug control module (GPCM). The reductant pressure line heater is integral to the reductant pressure line. The reductant tank heater is integral to the reductant heater and sender assembly. For additional information on the reductant tank heater, refer to Reductant Heater And Sender Assembly in this article. The reductant pump heater is integral to the reductant pump assembly. For additional information on the reductant pump heater, refer to Reductant Pump Assembly description in this article.