freightliner WALK-IN VAN CHASSIS Operator's Manual page 47

DEF Level Low—Initial and Critical
Warnings
When the DEF level reads low the following warnings
strongly encourage the driver to refill the DEF tank.
See Fig. 4.6.
•
The DEF warning lamp illuminates constantly
(initial warning).
•
The DEF warning lamp flashes (critical warn-
ing).
•
DEF-level lightbar illuminates solid amber.
A
B
10/13/2009
A. DEF Warning Lamp (solid amber)
B. DEF-Level Lightbar (1 bar solid amber)
Fig. 4.6, DEF Level Low Initial and Critical Warnings
DEF Empty
When the DEF level reads empty, the following warn-
ings are activated. See
•
One bar of the DEF-level lightbar flashes red.
•
The DEF warning lamp flashes.
•
The CHECK engine lamp illuminates.
Engine performance is limited, with progressively
harsher engine power limits applied.
The DEF tank must be filled to cancel the warning
sequence.
DEF Level Empty and Ignored
If the empty warning is ignored and the DEF is not
refilled, the red STOP engine lamp illuminates in ad-
dition to the DEF warning lamp and the CHECK en-
gine warning lamp. See
If the DEF tank is not refilled, a 5 mph (8 km/h)
speed limit will be applied after the next engine shut-
down, or while parked and idling.
f611056
Fig. 4.7.
Fig. 4.8.
A
B
10/13/2009
NOTE: Engine performance is limited.
A. DEF Warning Lamp (flashing amber)
B. DEF-Level Lightbar (1 bar flashing red)
Fig. 4.7, DEF Empty Warning
A
B B
11/18/2010
NOTE: The STOP engine, CHECK engine, and DEF
lamps illuminate, engine power is limited, speed limit of
5 mph (8 km/h).
A. DEF Warning Lamp (flashing amber)
B. DEF-Level Lightbar (1 bar flashing red)
Fig. 4.8, DEF Empty and Ignored Warning
DEF Quality or SCR Tampering
NOTICE
Once contaminated DEF has been detected in the
SCR system, the vehicle must be taken to an au-
thorized service center to check the SCR system
for damage, and to deactivate the warning light
and engine limits.
If contaminated DEF or tampering is detected, the
DEF warning light flashes, and engine performance
is limited with progressively harsher engine power
limits applied. If the fault is not corrected, the
CHECK engine lamp illuminates, then the STOP en-
gine lamp illuminates and a 5 mph (8 km/h) speed
limit will be applied after the next engine shutdown,
or while parked and idling. See
Engines
f611057
f611059b
Fig. 4.8.
4.8