Read And Reset Transmission Health Monitor From Selector
To enter the transmission health monitor, press simultaneously the (Upshift) and (Downshift) arrows four
times. An acceptable clutch life status is displayed as “TRANS HEALTH OK”. An unacceptable clutch life
status is displayed as “TRANS HEALTH LO”.
The feature will reset automatically upon elimination of the clutch clearance condition which initiated it. The
indicator can also be manually reset using the Allison DOC™ for PC diagnostics program if necessary.
REFERENCE TABLE
(Upshift) &
(Downshift) arrow
buttons pressed
simultaneously *
Description Message
1
st
press
Allison transmission oil level check
2
nd
press
Oil Life Monitor " O " " M "
Oil life remaining will range from 99% down to 00%
Some
number
from 9 to
0
Some
number
from 9 to
0
3
rd
press
Filter Life Monitor " F" " M "
Present life of filter is acceptable OIL FILTER OK
Present life of filter is unacceptable REPLACE FILTERS
4
th
press
Transmission Health Monitor " T" " M "
An acceptable clutch life status is displayed as “TRANS
HEALTH OK” TRANS HEALTH OK
An unacceptable clutch life status is displayed as
“TRANS HEALTH LO” TRANS HEALTH LO
5
th
press
Display of diagnostic codes
* With the engine off and ignition on.
PA-1652 Operator's Manual H3-45 Coach
C-6 Allison Transmission Other Features