Sensor, Diesel Exhaust Fluid Quality: Description: Description

WARNING: This page is about a different car, the 2016 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Diesel Exhaust Fluid (DEF) Quality Sensor

Courtesy of CHRYSLER GROUP, LLC

The Diesel Exhaust Fluid (DEF) Quality Sensor (1) is used to measure the quality of the DEF fluid. The DEF quality sensor is apart of the DEF tank and is NOT a serviceable component. If diagnosis leads you to replace the DEF quality sensor, then you need replace the DEF tank.