FORD 2003 Expedition v.4 - Manual (Page 138)

DATA ERR. These messages indicate improper operation of the vehicle
network communication between electronic modules.
• Fuel computer
• Charging system
• Door sensor
• Washer fluid
• Brake fluid
• Compass
• Outside temperature
• Engine sensor
Contact your dealer as soon as possible if these messages occur on a
regular basis.
OVERDRIVE CONTROL
Activating overdrive
(Overdrive) is the normal drive position for the best fuel economy.
The overdrive function allows automatic upshifts and downshifts through
all available gears.
Deactivating overdrive
Press the transmission control
switch (TCS) located on the end of
the gearshift lever. The O/D OFF
indicator light will illuminate on the
instrument cluster. The transmission
will operate in all gears except
overdrive.
To return to normal overdrive mode,
press the transmission control
switch again. The O/D OFF will no
longer be illuminated.
When you shut off and re-start your
vehicle, the transmission will
automatically return to normal
(Overdrive) mode.
For additional information about the gearshift lever and the transmission
control switch operation refer to the Automatic Transmission
Operation section of the Driving chapter.
Driver Controls
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