Reductant Heaters - All Others

The reluctant 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 reluctant dosage control module (Transit) or the glow plug control module (GPCM) (all others). The reluctant pressure line heater is integral to the reluctant pressure line. The reluctant tank heater is integral to the reluctant heater and sender assembly. For additional information on the reluctant tank heater, refer to the reluctant heater and sender assembly description in this article. The reluctant pump heater is integral to the reluctant pump assembly. For additional information on the reluctant pump heater, refer to the reluctant pump assembly description in this article.