service reset LINCOLN TOWN CAR 2004 Owners Manual

Reset
Press this control to reset the
selected message center function to
zero. (The only functions which can
be reset are FUEL ECON and TRIP
AorB.)
Message center functions
Speed
To use this function, select SPEED
and press the RESET control. Your
speed from that point will be
displayed on the left side of the
cluster until RESET is pressed
again.
Fuel econ (average fuel economy)
Select this function to display your
average fuel economy in miles/gallon
or liters/100 km.
If you calculate your average fuel
economy by dividing gallons of fuel
used by 100 miles traveled
(kilometers traveled by liters used),
your figure may be different than
displayed for the following reasons:
•your vehicle was not perfectly level during fill-up
•differences in the automatic shut-off points on the fuel pumps at
service stations
•variations in top-off procedure from one fill-up to another
•rounding of the displayed values to the nearest 0.1 gallon (liter)
Checking your highway fuel economy using the electronic
message center display
The following procedure will allow you to accurately monitor your actual
highway fuel economy. Since this procedure requires the vehicle speed
control system to be set to highway speeds, it must be run only on
suitable roadways where long distance speed control can be safely
maintained.
SELECT
RESET
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DTE is calculated using a running average fuel economy, which is based on
your recent driving history of 500 miles (800 km). This value is not the same
as the average fuel economy display. The running average fuel economy is
reinitialized to a factory default value if the battery is disconnected.
If“CO”or“CS”is displayed, there is a problem with the fuel indication
system and you should contact your dealer for service as soon as possible.
AVG speed
To use this function, select AVG
SPEED and press the RESET
control. Your average speed from
that point will be displayed until
RESET is pressed again.
TripAB
These two functions allow you to
see how far you have traveled since
you last reset. Trip A and Trip B are
completely independent and must
be reset individually.
To reset either trip feature to zero,
press the RESET control while the
appropriate trip distance feature (A
or B) is displayed.
E/M
When this function is displayed,
press the RESET control to change
the message center display from
metric to English units or from
English to metric units.
SELECT
RESET
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What you should know about fail-safe cooling
If the engine coolant supply is depleted, this feature allows the vehicle to
be driven temporarily before incremental component damage is incurred.
The“fail-safe”distance depends on ambient temperatures, vehicle load
and terrain.
How fail-safe cooling works
If the engine begins to overheat:
•The engine coolant temperature
gauge will move to the H (hot)
area.
•The
symbol will illuminate.
•A tone will sound 3 times.
•TheService engine soon
indicator light will illuminate.
If the engine reaches a preset over-temperature condition, the engine
will automatically switch to alternating cylinder operation. Each disabled
cylinder acts as an air pump and cools the engine.
When this occurs the vehicle will still operate. However:
•The engine power will be limited.
•The air conditioning system will be disabled.
Continued operation will increase the engine temperature:
•The
symbol will begin to flash.
•A tone will sound 5 times.
•The engine will completely shut down, causing steering and braking
effort to increase.
Once the engine temperature cools, the engine can be re-started. Take
your vehicle to a service facility as soon as possible to minimize engine
damage.
When fail-safe mode is activated
You have limited engine power when in the fail-safe mode, so drive the
vehicle with caution. The vehicle will not be able to maintain high-speed
operation and the engine will run rough. Remember that the engine is
capable of completely shutting down automatically to prevent engine
damage, therefore:
1. Pull off the road as soon as safely possible and turn off the engine.
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service technician in properly servicing your vehicle. When theCheck
engine/Service engine soonlight illuminates, the OBD-II system has
detected a malfunction. Temporary malfunctions may cause yourCheck
engine/Service engine soonlight to illuminate. Examples are:
1. The vehicle has run out of fuel. (The engine may misfire or run
poorly.)
2. Poor fuel quality or water in the fuel.
3. The fuel cap may not have been securely tightened.
These temporary malfunctions can be corrected by filling the fuel tank
with good quality fuel and/or properly tightening the fuel cap. After three
driving cycles without these or any other temporary malfunctions
present, theCheck engine/Service engine soonlight should turn off. (A
driving cycle consists of a cold engine startup followed by mixed
city/highway driving.) No additional vehicle service is required.
If theCheck engine/Service engine soonlight remains on, have your
vehicle serviced at the first available opportunity.
Readiness for Inspection/Maintenance (I/M) testing
In some localities, it may be a legal requirement to pass an I/M test of
the on-board diagnostics system. If yourCheck engine/Service engine
soonlight is on, refer to the description in theWarning lights and
chimessection of theInstrument Clusterchapter. Your vehicle may not
pass the I/M test with theCheck engine/Service engine soonlight on.
If the vehicle’s powertrain system or its battery has just been serviced,
the on-board diagnostics system is reset to a“not ready for I/M test”
condition. To ready the on-board diagnostics system for I/M testing, a
minimum of 30 minutes of city and highway driving is necessary as
described below:
•First, at least 10 minutes of driving on an expressway or highway.
•Next, at least 20 minutes driving in stop-and-go, city-type traffic with
at least four idle periods.
Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete.
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