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Home >> Jaguar >> 2020 >> XF Checkered Flag >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Exhaust System - INGENIUM I4 2.0L Diesel -- XE (X760)) >> Exhaust System - INGENIUM I4 2.0L Diesel >> Selective Catalyst Reduction >> Description And Operation >> Component Description >> Diesel Exhaust Fluid (Def) Pressure Line

Diesel Exhaust Fluid (Def) Pressure Line

WARNING: This page is about a different car, the 2018 Jaguar XE and 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
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The Diesel Exhaust Fluid (DEF) pressure line provides hydraulic connection between the DEF injection pump and the DEF injector. The DEF pressure line is manufactured from a plastic material which is specifically designed for use with DEF.

A copper based resistor wire is installed within the DEF pressure line with an electrical connector. The resistor wire enables electrical heating of the DEF at low-ambient temperatures.

The DEF pressure line has hardwired connections to the DEF heater control unit, which actuates the power supply for the heater element, controlled by the Powertrain Control Module (PCM) via the Private Controller Area Network (CAN) bus.

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