The DEF injection system consists of the following compo-
nents:
•
DEF tank
•
DEF pump
•
DEF injector
•
Electronically-heated DEF lines
•
DEF control module
•
NOx sensors
•
Temperature sensors
•
SCR catalyst
•
UQS Sensor
Refer to “Instrument Cluster Display” in “Getting To Know
Your Instrument Panel” for system messages and warn-
ings.
NOTE:
•
Your vehicle is equipped with a DEF injection system.
You may occasionally hear an audible clicking noise.
This is normal operation.
•
The DEF pump will run for a period of time after engine
shutdown to purge the DEF system. This is normal
operation.
Diesel Exhaust Fluid Storage
Diesel Exhaust Fluid (DEF) is considered a very stable
product with a long shelf life. If DEF is kept in tempera-
tures between 10° and 90°F (-12° and 32°C), it will last a
minimum of one year.
DEF is subject to freezing at the lowest temperatures. For
example, DEF may freeze at temperatures at or below 12°
F (-11° C). The system has been designed to operate in this
environment.
NOTE:
When working with DEF, it is important to know
that:
•
Any containers or parts that come into contact with DEF
must be DEF compatible (plastic or stainless steel).
Copper, brass, aluminum, iron or non-stainless steel
should be avoided as they are subject to corrosion by
DEF.
•
If DEF is spilled, it should be wiped up completely.
78
STARTING AND OPERATING
Summary of Contents for RAM 2500 2019
Page 4: ......
Page 5: ...INTRODUCTION CONTENTS 䡵 A MESSAGE FROM FCA US LLC 4 1 ...
Page 12: ...INSTRUMENT CLUSTER Base Instrument Cluster 10 GETTING TO KNOW YOUR INSTRUMENT PANEL ...
Page 15: ...Premium Instrument Cluster 3 GETTING TO KNOW YOUR INSTRUMENT PANEL 13 ...
Page 130: ......
Page 141: ...INDEX 8 ...
Page 146: ......