PACCAR Engine Aftertreatment Systems-Operator's Manual
PACCAR Engine Aftertreatment Systems-Operator's Manual
PACCAR Engine Aftertreatment Systems-Operator's Manual
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Selective Catalytic Reduction (SCR) System<br />
DEF Level Warning<br />
Warning<br />
Level<br />
Warnings Indicators Condition Effect on <strong>Engine</strong><br />
0 None<br />
DEF Level greater<br />
than 10% (1/8 tank)<br />
None<br />
3<br />
1<br />
DEF Warning Lamp on<br />
DEF Level at 10%<br />
(1/8 tank)<br />
None<br />
2<br />
DEF Warning Lamp<br />
flashing<br />
DEF Level between<br />
empty and 10%<br />
(1/8 tank)<br />
None<br />
3<br />
DEF Warning Lamp<br />
flashing<br />
Check <strong>Engine</strong> Lamp<br />
on<br />
DEF Level<br />
almost empty<br />
<strong>Engine</strong> power<br />
derated<br />
4<br />
DEF Warning Lamp<br />
flashing<br />
Check <strong>Engine</strong> Lamp<br />
on<br />
Malfunction Indicator<br />
Lamp (MIL) on<br />
(Not on MX engine)<br />
Stop <strong>Engine</strong> Lamp<br />
may be on<br />
DEF Level empty<br />
<strong>Engine</strong> power<br />
derated and/or<br />
vehicle speed<br />
significantly<br />
limited<br />
3-18
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