gauges. It also shows the hardware and soft-
ware version of the instrument panel, and has
menus to retrieve active error codes from the
engine, transmission, and ABS controllers.
NOTE: No lines can be highlighted in the menu
system screen. To get to the sections that can
be highlighted, press the right arrow toggle but-
ton and hold it for two seconds. The display
screen will change and the options shown can
then be highlighted. Once a selection has been
chosen and changes are made, press the right
arrow toggle button to go back to the main mes-
sage display screen.
Setup Menu
Select Display Units
The set units screen allows the driver to choose be-
tween English or metric units of measurement for the
displayed values. To navigate to the set units screen,
see
Fig. 19.5, screens H, I, and J.
Startup Screen
The startup screen selection allows the driver to turn
the startup screen on or off.
LCD Contrast
Select contrast from the menu to set the LCD con-
trast. Use the down toggle button to set the contrast
to the desired level. To navigate to the contrast
screen, see
Fig. 19.5, screen M.
Reset Parameters
The reset parameters screen is included with ve-
hicles that have the Allison transmission prognostics
feature.
Maintenance Menu
The maintenance menu has the following three sub
menus:
•
maintenance intervals
•
transmission oil life remaining
•
transmission oil filter life monitor
Maintenance Intervals
The maintenance intervals menu allows the driver to
set the change intervals for engine oil and engine air
filter. If the intervals are set to zero, the maintenance
warnings must be disabled.
Transmission Oil Life Remaining
If transmission prognostics are enabled, this menu
indicates how much useful oil life remains.
Transmission Oil Filter Life Monitor
If transmission prognostics are enabled, the trans-
mission oil filter life monitor tells the driver if the
transmission oil filter is clogged and in need of repair.
A message will appear on the display screen as
TRANS OIL FILTER FUNCTIONAL or TRANS OIL
FILTER CLOGGED.
Diagnostic Menu
The diagnostic menu contains the following items:
•
engine faults
•
transmission faults
•
ABS faults
•
check outputs
•
odometer diagnostics
•
check gauges
•
check indicators (warning lamps)
•
check LCD
•
check binary inputs
•
check analog inputs
•
check datalink
•
hardware/software version
All of the items in the diagnostic menu can be ac-
cessed by using the toggle buttons and selecting the
auxiliary screens. Then navigate to the diagnostic
sub-menu. Some of the more frequently used diag-
nostic menus are described further below.
Engine Faults
This screen displays engine fault codes that are re-
ceived from the engine electronic control unit (ECU).
To navigate to the engine fault screen, see
Fig. 19.6,
screen AA.
Propane Fuel System
19.8
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