2007 RAM CHASSIS CAB display

NOTE: During snowplow usage on vehicles equipped
with an overhead console module, the outside tempera-
ture display will show higher temperatures than the
outside ambient temperature. The higher displayed tem-
perature is due to blocked or reduced airflow to the
underhood ambient temperature sensor by the snow-
plow. This is common and outside temperature display
operation will return to normal when the snowplow is
removed.
General Maintenance
Snowplows should be maintained in accordance with the
plow manufacturer’s instructions.
Keep all snowplow electrical connections and battery
terminals clean and free of corrosion. When plowing snow, to avoid transmission and driv-
etrain damage, the following precautions should be ob-
served.
• Operate with transfer case in 4L when plowing small
or congested areas where speeds are not likely to
exceed 15 mph (24 km/h). At higher speeds operate in
4H.
• Vehicles with automatic transmissions should use 4L
range when plowing deep or heavy snow for extended
periods of time to avoid transmission overheating.
• Do not shift the transmission unless the engine has
returned to idle and wheels have stopped. Make a
practice of stepping on the brake pedal before shifting
the transmission. STARTING AND OPERATING 359
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ONBOARD DIAGNOSTIC SYSTEM (OBD II)
Vehicles equipped with California emissions controls
have a sophisticated onboard diagnostic system called
OBDII. This system monitors the performance of the
emissions, engine, and automatic transmission control
systems. When these systems are operating properly,
your vehicle will provide excellent performance and fuel
economy, as well as engine emissions well within current
government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light.” It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be driveable and not
need towing, see your dealer for service as soon as
possible. CAUTION!Prolonged driving with the “Malfunction Indicator
Light” on could cause further damage to the emis-
sion control system. It could also affect fuel economy
and driveability. The vehicle must be serviced before
any emissions tests can be performed.
If the “Malfunction Indicator Light” is flashing,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Loose Fuel Filler Cap Message
If the vehicles diagnostic system determines that the fuel
filler cap in loose, improperly installed, or damaged, a
GASCAP message will be displayed in the instrument
cluster. Tighten the gas cap until a “clicking” sound is
heard. This is an indication that the gas cap is properly
tightened. Press the odometer reset button to turn the394 MAINTAINING YOUR VEHICLE

• Do not shut off the engine or interrupt the ignition
when the transmission is in gear and the vehicle is in
motion.
• Do not try to start engine by pushing or towing the
vehicle.
• Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough
idling or malfunctioning operating conditions.
Intervention Regeneration Strategy – EVIC
Message Process Flow (Catalyst Full Message)
(Diesel Engines Only)
Your new Cummins 6.7L diesel meets all EPA Heavy
Duty Diesel Engine Emissions Standards for 2007 MY
(HDDE07), resulting in the lowest emitting diesel engine
ever produced. To achieve these emission standards your Dodge Chassis
Cab truck is equipped with state of the art engine and
exhaust system. The engine and exhaust aftertreatment
system work together to achieve the HDDE07 standard.
These systems are seamlessly integrated into your Dodge
truck and managed by the Cummins 6.7L engine Power-
train Control Module (PCM). The PCM manages engine
combustion to allow the exhaust system’s catalyst to trap
and burn Particulate Matter (PM) pollutants, with no
input or interaction on your part.
Additionally, the overhead console in your Dodge truck
has the ability to alert you to additional maintenance
required on your truck or engine. Refer to the following
messages that may be displayed on your Electronic
Vehicle Information Center (EVIC): MAINTAINING YOUR VEHICLE 415
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WARNING!A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your ex-
haust system. Do not park or operate your vehicle in
areas where your exhaust system can contact any-
thing that can burn.
Service CCV Filter
The 6.7L Cummins engine utilizes a Closed Crankcase
Ventilation (CCV) system. This system filters and recycles
gasses produced in the crankcase during the normal
combustion process. Service CCV Filter will be displayed
on the overhead console of your Dodge truck if the CCV
filter is due for required maintenance. This filter is
located on the top of the engine valve cover. For addi-
tional information, see your Dodge truck dealer. Catalyst Full See Owner Manual
Catalyst Full See Owner Manual will be displayed on the
overhead console of your Dodge truck if the exhaust
particulate filter reaches 80% of its maximum storage
capacity. Under conditions of exclusive short duration
and low speed driving cycles, your Cummins engine and
exhaust aftertreatment system may never reach the con-
ditions required to remove the trapped PM, if this occurs
Catalyst Full See Owner Manual will be displayed on the
overhead console in your Dodge truck. If this message is
displayed you will hear one chime to assist in alerting
you of this condition.
Catalyst Stat::::::::::80%
Catalyst Stat::::::::::80% will replace the message Catalyst
Full See Owner Manual after it is displayed for one
minute. The engine Powertrain Control Module (PCM)
will continue to monitor the amount of particulate matter416 MAINTAINING YOUR VEHICLE

trapped in the particulate filter. This message indicates
the percentage of the particulate filter capacity that has
been used.
By simply driving your Dodge truck at highway speeds
for as little as 45 minutes you can remedy the condition in
the particulate filter system and allow your Cummins
engine and exhaust Aftertreatment system to remove the
trapped PM and restore the system to normal operating
condition.
Catalyst Stat:::::::::::80%, 90%, 99%
Catalyst Stat:::::::::::80%, 90%, 99% If you are unable to
drive your vehicle under these conditions for an ex-
tended period of time after the initial warning notifica-
tion, the Engine PCM will continue to monitor the
particulate filter and will display the progression of
particulate filter usage (80, 90, 99%) on the EVIC message
center. CATALYST FULL SERVICE REQD
If the particulate filter reaches 99% of it’s capacity the
overhead console in your Dodge truck will chime twice
and display the message CATALYST FULL SERVICE
REQD. At this point the engine PCM will register a fault
code, the instrument panel will display a MIL light and
the engine PCM will derate the truck reducing its horse-
power and torque output.
The PCM derates the engine in order to limit the likeli-
hood of permanent damage to the aftertreatment system.
If this condition is not corrected and a dealer service is
not performed, extensive exhaust aftertreatment damage
can occur. In order to correct this condition it will be
necessary to have the truck serviced by your Dodge truck
dealer. MAINTAINING YOUR VEHICLE 417
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