DDC-SVC-OTH-0033
DIESEL EXHAUST FLUID (DEF)
INDICATOR LAMPS
PARKED REGENERATION
PROCEDURE
1.
2.
3.
4.
5.
DEF level is very low
Keep engine at slow idle (cannot be in PTO mode).
Cycle transmission out of neutral and back into neutral.*
Cycle the park brake from OFF to ON.*
Press and release clutch pedal.*
Hold DPF Switch to the ON position for five (5)
seconds, then release. Engine speed will increase
and DPF Lamp will go out.
DEF level is EMPTY
Solid
Flashing
Vehicle speed limited to 55 mph / engine derated
DPF Switch
Push to initiate
DEF level is EMPTY and IGNORED
Flashing
STOP
ENGINE
• The parked regeneration may take up to 40 minutes.
• The parked regeneration is complete when the engine
returns to idle and the DPF lamp remains off. The HEST
light may remain on, but the vehicle can be driven.
• A parked regeneration will stop if the key is turned to
the OFF position, clutch is depressed, the truck is put
into gear or the parking brake is released.
*These steps are not required on GHG14 engines or later.
Vehicle speed limited to 5 mph / engine derated
Low DEF
warning light
Light bar shows
DEF level
DDC-SVC-OTH-0030 Specifications are subject to change without notice. Detroit Diesel Corporation is registered to ISO 9001:2008.
Copyright © Detroit Diesel Corporation. All rights reserved. DetroitTM is a brand of Detroit Diesel Corporation a Daimler company. 2013
• The use of improper fluid will trigger a
decrease in engine performance.
• In the empty and ignored state,
vehicle speed will be limited to 5 mph until
DEF is detected in the tank.
• The light bar indicates the level of fluid in
the DEF tank.
• Low DEF levels will trigger a decrease in
engine performance.
DRIVER ACTION
NOTIFICATION AND DESCRIPTION
CHECK
ENGINE
CHECK
ENGINE
Flashing
CHECK
ENGINE
Flashing
CHECK
ENGINE
Check Engine Lamp or Amber Warning Light (CEL or AWL)
• Engine controls, aftertreatment control system and/or
component issues exist.
High Exhaust System Temperature Lamp (HEST)
• Solid: Exhaust is at high temperature and vehicle is at low speed or parked.
• Flashing: Parked regeneration in process. System is not up to temperature.
Vehicle can be driven to end of shift. Call for service.
Malfunction Indicator Lamp (MIL) /Check Engine Lamp
• There is a potential problem with the emission control system or component.
• May illuminate at the same time as the Check Engine Lamp.
• Driving for a prolonged period with the MIL on can cause damage to the engine
and/or aftertreatment system as well as degrade mileage and drivability.
Vehicle can be driven to end of the shift. If the MIL remains on after 3 drive
cycles, call for service.
DPF Regeneration Lamp
• Solid: Parked regeneration may be needed.
• Flashing Parked regeneration is required as soon as possible.
• Diesel Particulate Filter reaching system limits.
DPF Regeneration Lamp / Check Engine Lamp
ENGINE DERATED
• Diesel Particulate Filter has reached system limits.
Perform a parked regeneration OR bring vehicle to highway speeds to enable
Automatic Regeneration of the filter.
A parked regeneration must be performed. If the parked regeneration exits
and the lamps remain on, repeat the parked regeneration. If the second
attempt fails, call for service.
Stop Engine Lamp
ENGINE SHUTDOWN
• Diesel Particulate Filter has exceeded system limits.
A parked regeneration must be performed. If the parked regeneration exits
and the lamps remain on, repeat the parked regeneration. If the second
attempt fails, call for service.
No change in driving style is required. When parked, keep vehicle at a safe
distance from people and flammable materials or vapors.
Note: Engine can be restarted, but a parked regeneration must be initiated
within 30 seconds or the engine will shutdown.
STOP
ENGINE
Fuel Filter Restriction Sensor Lamp (FFRS)
• Fuel Filter is restricted.
Driver has one to three days to seek service or the engine may derate.
Water In Fuel Lamp (WIF)
• Water level is too high and must be drained from the fuel system.
Engine water separator must be drained or an engine derate will occur.
(Some notifications may be reported by Virtual TechnicianTM.)
DDC-SVC-OTH-0030 Specifications are subject to change without notice. Detroit Diesel Corporation is registered to ISO 9001:2008.
Copyright © Detroit Diesel Corporation. All rights reserved. DetroitTM is a brand of Detroit Diesel Corporation a Daimler company. 2013
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