3 Description and Operation
46
Illuminated
An illuminated DPF Regen Needed Lamp is an indication that
the truck needs to perform a regeneration.
Flashing
If a regeneration is not performed in a timely manner after the
DEF lamp is illuminated, the DEF lamp will begin to flash. This
indicates a higher level of soot in the DPF. In addition engine
power may be reduced automatically.
Flashing with Warning or Check Engine
Lamp
A flashing DPF lamp combined with an illuminated Warning or
Check Engine Lamp indicates that the Aftertreatment DPF
needs regeneration immediately. Engine power will be reduced
automatically. Parked regeneration is required.
Stop Engine Lamp
If Parked regeneration is not performed, the Stop Engine Lamp
will illuminate. The vehicle should be stopped as soon as it can
safely be done until it can be repaired.
Figure 31
DPF Regen Needed Lamp
Figure 32
DPF Regen Needed Lamp
Figure 33
Lamp Combination
CHECK
ENGINE
Figure 34
Stop Engine Lamp
STOP
ENGINE
