Normal Prognostics Indication At Engine Start; Oil Life Monitor - PREVOST H3-45 VIP Owner's Manual

NOTE
The prognostics package requires the use of
TranSynd™ or an Allison approved TES295 or
TES389 licensed fluid in the transmission and
Allison High Capacity filters.
If any other fluids or filters are used, Prognostic
mode must be disabled.
Prognostic information will not be accurate with
any other fluids or filters and could result in missed
maintenance activities resulting in transmission
damage.
Refer to TES 295 or TES389 Approved Fluids list,
found under the Service/Fluids heading on the
home page of the Allison Transmission web site.
www.allisontransmission.com
When a specified threshold is detected for any of the
serviceable conditions,
SERVICE indicator
operator. Failure to attend to the service condition
and reset the TRANSMISSION SERVICE indicator
within a defined operating period will result in
illumination of the CHECK light with associated
message in the DID, indicating the increased
probability that the service condition will develop into
a more serious condition.
To access the Prognostic
simultaneously press the
(Downshift) arrow buttons repeatedly. See the at the
end of this section.
NORMAL PROGNOSTICS INDICATION AT
ENGINE START
A system bulb check
l
TRANSMISSION
approximately 0.5 seconds.
If Prognostics features are enabled, the
l
TRANSMISSION
illuminates again for 3 seconds after the bulb
check. If Prognostics features are disabled,
the TRANSMISSION SERVICE indicator
does not illuminate again after the bulb check.

OIL LIFE MONITOR

The display message denotes the calculated
remaining life of the transmission fluid. This value is
based on the established life for the required baseline
fluid, and then is continuously adjusted for
the TRANSMISSION
is illuminated to alert the
Mode functions,
(Upshift) and
illuminates
SERVICE indicator
SERVICE indicator
PA-1638 Owner's Manual X3-45 VIP
Allison Transmission Other Features C-3
cumulative effects of such operating parameters as
operating time, retarder operation, output shaft
revolutions and shift frequency.
Display
The display is a two- digit number, denoting
percentage of the fluid life which remains. New fluid
is displayed as 99%.
The TRANSMISSION SERVICE indicator
illuminated,
transmission fluid, when the remaining fluid life
reaches approximately 1 %. The indicator will be lit
steadily upon each initialization of the TCM, and will
remain on steady for approximately 2 minutes after
the first selection of "D" (drive) range each time, until
service is performed and the indicator is reset.
Failure to perform maintenance and reset the
TRANSMISSION SERVICE indicator within a
defined period will result in the illumination of the
CHECK light with associated message in the DID
and diagnostic code P0897 Transmission Fluid
Deteriorated.
Reset
The TRANSMISSION SERVICE indicator can be
reset by a message over the SAE J1939
communication interface, with the Allison DOC™ for
PC diagnostic program, or by depressing and holding
the MODE button for ten (10) seconds while the Oil
Life Monitor function is displayed. It may also be
reset by selecting N- D- N- D- N- R- N on the shift
selector, pausing briefly (less than 3 seconds)
between each selector movement, with the ignition
ON and
TRANSMISSION SERVICE indicator illuminates
briefly following a reset to acknowledge the reset
was successful.
the
Setting Fluid Type For Prognostics
The fluid type can be programmed if the specific
calibration allows it. The operator can do the
following:
With the engine off and the ignition on, perform the
following sequence on the selector, N-R-N-D-N-R-
N-D-N-R-N-D-N.
The TRANSMISSION SERVICE indicator flashes if
TES389 is the current setting and illuminates solidly
if TES295 is the current setting. To change the
transmission fluid type, wait 5 seconds after entering
transmission fluid type mode and perform the
following sequences
transmission type:
denoting a required
the engine not running.
to select
will be
change of
The
the proper