Allison Transmission Shift Selector 5 Generation Operator Manual
OPERATION
+ CODE MANUAL
SHIFT SELECTOR
OIL LEVEL INFORMATION, DIAGNOSTIC CODES AND PROGNOSTIC FEATURES
FOR 3000/4000 SERIES™ AND TC10™ ALLISON TRANSMISSIONS
Table of Contents
General Information ..................................... 1
Basic Operation ......................................... 2
Section 1 - With Prognostics + With Oil Level Sensor
Fluid Levels ............................................ 3
Checking Fluid Levels..................................... 3
Prognostic Features ...................................... 4
Accessing Prognostics .................................... 5
Resetting Prognostics..................................... 6
Exit Prognostics ......................................... 6
Diagnostics Codes ....................................... 7
Section 2 - With Prognostics + Without Oil Level Sensor
Prognostic Features ...................................... 8
Accessing Prognostics .................................... 9
Resetting Prognostics.................................... 10
Exit Prognostics ........................................ 10
Diagnostics Codes ...................................... 11
Section 3 - Without Prognostics + With Oil Level Sensor
Fluid Levels ........................................... 12
Checking Fluid Levels.................................... 12
Diagnostics Codes ...................................... 14
Section 4 - Without Prognostics + Without Oil Level Sensor
Diagnostics Codes ...................................... 15
Diagnostics Transmission Codes
Codes P0122-P077F .................................... 17
Codes P0796-P0994 .................................... 18
Codes P0994-P2637 .................................... 19
Codes P2641-P281B .................................... 20
Codes P281D-U059A.................................... 21
General Information
Control. Power. Information. The new 5th Generation Electronic Shift
Selector from Allison puts it all at your fingertips. Literally. Getting started is
easy and the selector’s complete menu of prognostic and diagnostic tools
minimize downtime and keep you on the job. Use this handy reference
booklet for step-by-step instruction on how to get the most from your shift
selector and of course, your Allison fully automatic transmission.
The Allison Advantage
Your Allison Automatic is fully electronically controlled. The Allison
electronic controls package oversees the operation of the transmission,
controlling transmission upshifts and downshifts, and providing important
information on the operation of your drive system.
Through readouts on your shift selector, you will be able to monitor
transmission oil levels, read diagnostic codes and prognostic information.
This manual will help you understand shift selector readouts and enjoy
long, trouble-free operation of your Allison Automatic.
Diagnostics
The Transmission Control Module (TCM) of your Allison Automatic
monitors the transmission’s electronic controls; and when a problem
condition is detected, it:
• May restrict shifting
• Illuminates the CHECK TRANS* light on the instrument panel
• Registers a diagnostic code
Continued illumination of the CHECK TRANS light during vehicle
operation (other than start-up) indicates that the TCM has signaled
a diagnostic code.
NOTE: Displays apply only when using a 5th Gen TCM.
* For some problems, diagnostic codes may be registered without the TCM
activating the CHECK TRANS light. Your Allison Authorized Service Network should
be consulted whenever there is a transmission-related concern. They have the
equipment to check for diagnostic codes and to correct problems.
1
Basic Operation
5th Generation Electronic Controls Shift Selectors
As the world leader in medium- and heavy-duty commercial transmissions,
Allison Transmission continues its ongoing improvement initiative with the
introduction of 5th Generation Electronic Controls Shift Selectors.
All 5th Generation Electronic Controls Shift Selectors feature easy-to-read
graphic displays that show both text and symbols.
DIGITAL
DISPLAY
MODE
BUTTON
UP/DOWN
ARROWS
DIGITAL
DISPLAY
DIAGNOSTICS
BUTTON
BUMP LEVER
PUSHBUTTON
R - REVERSE N - NEUTRAL D - DRIVE
OEMs may supply shift selectors for some vehicles equipped with 5th
Generation Electronic Controls. If your vehicle is not equipped with an
Allison-supplied shift selector, contact your OEM.
Mode Button
Allison Automatics offer primary and secondary shift
schedule modes to enhance performance or fuel
economy. The vehicle always defaults to the primary
mode [MODE is not shown on graphic display].
If equipped as such you can switch to the secondary
mode by pushing the MODE button [MODE is shown on
graphic display].
Your vehicle may be equipped with FuelSense –
Allison’s next generation in fuel-savings technology.
FuelSense is a set of unique packages of software and
electronic controls that can potentially increase fuel
economy by 20%. FuelSense icons will appear at start
up if your vehicle utilizes a FuelSense package.
2
SECTION 1
WITH PROGNOSTICS +
WITH OIL LEVEL SENSOR
Fluid Levels
The transmission fluid cools, lubricates and transmits hydraulic power,
so it is important that the proper fluid level be maintained at all times.
If the fluid level is too low, the converter and clutches do not receive an
adequate supply of fluids. If the fluid level is too high, the fluid can aerate
causing the transmission to shift erratically or overheat.
Checking Fluid Levels
Use the following procedure to display oil level information.
To enter the oil level function:
1. Park the vehicle on a level surface, shift to N (NEUTRAL)
and apply the parking brake.
2. Using a pushbutton shift selector, simultaneously
press the UP and DOWN arrows one time.
For a bump lever shift selector, press
the DIAGNOSTICS button one time.
3. The fluid level reading will be delayed until the following
conditions are met.
• Engine must be at idle.
• Transmission is in N (NEUTRAL).
• Output speed must be zero.
• Fluid temperature must be between 104F (40C)
and 220F (104C).
• Vehicle has been stationary for two minutes to allow
the fluid to settle.
3
4. The shift selector displays the oil level data as follows:
• CORRECT FLUID LEVEL – The fluid is within the
correct fluid level zone when OK is shown.
• LOW FLUID LEVEL – The display shows the number
of quarts the transmission oil is low.
• HIGH FLUID LEVEL – The display shows the number
of quarts the transmission oil is overfilled.
Delayed Fluid Level Check
If the fluid level check cannot be completed, one of the following
Oil Level Display faults will be shown:
To exit the oil level function:
• For pushbutton shift selector,
press N (NEUTRAL) button.
• For bump lever shift selector, press the
DIAGNOSTICS button until you return to range display.
Prognostic Features
5th Generation Electronic Controls Shift
Selectors display prognostics in text form to
provide at-a-glance status of Oil Life, Filter Life
and Transmission Health.
The WRENCH ICON will illuminate briefly after you turn
the key to the run position on your Allison-equipped
vehicle to indicate that prognostics are enabled. If the
WRENCH ICON remains on or flashes, this indicates there
is a service issue relating to clutch, filter or fluid life.
PUSHBUTTON
BUMP LEVER
4
Oil Life Monitor
The status of the oil life is displayed as a percentage
(OIL LIFE 100%) until fluid is due for a change.
Filter Life Monitor
The status of filter life is displayed as OIL FILTERS OK
and alerts when filters are due for a change with REPLACE FILTERS.
Transmission Health Monitor (not available for TC10)
The status of transmission health is displayed as OK or LO.
Accessing Prognostics
When you are alerted via the WRENCH ICON on the shift selector that service
is due, you can check the status by toggling through the shift selector
display as follows. Be sure to park the vehicle on a level surface, shift to
N (NEUTRAL) and apply the parking brake before accessing prognostics
through the shift selector.
Oil Life Monitor
For a pushbutton shift selector,
simultaneously press the UP and DOWN
arrows two times.
For a bump lever shift selector,
press the DIAGNOSTICS button two times.
The percentage of the
fluid life remaining is
displayed. New fluid is
shown as OIL LIFE 100%.
WITH PROGNOSTICS + WITH OIL LEVEL SENSOR
Filter Life Monitor
For a pushbutton shift selector,
simultaneously press the UP and DOWN
arrows three times.
For a bump lever shift selector, press
the DIAGNOSTICS button three times.
Transmission Health Monitor
For a pushbutton shift selector,
simultaneously press the UP and DOWN
arrows four times.
For a bump lever shift selector, press
the DIAGNOSTICS button four times.
5
Acceptable filter life status
is shown as FILTERS OK,
unacceptable filter life status
is shown as REPLACE FILTERS.
When TRANS HEALTH OK is
shown, clutch maintenance
is not required. When TRANS
HEALTH LO is displayed, clutch
maintenance is required.
Resetting Prognostics
Oil Life Monitor
For either a pushbutton or bump lever shift selector, press
and hold the MODE button for approximately 10 seconds
while in Oil Life Monitor mode.
Or
For either a pushbutton or bump lever shift selector,
perform the following shift sequence with the ignition
on, but the engine off. Do not stop the sequence
for more than three seconds once you have started.
N-D-N-D-N-R-N
Filter Life Monitor
For either a pushbutton or bump lever shift selector, press
and hold the MODE button for approximately 10 seconds
while in Filter Life Monitor mode.
Or
For either a pushbutton or bump lever shift selector, perform the
following shift sequence with the ignition on, but the engine off.
Do not stop the sequence for more than three seconds once you
have started.
N-R-N-R-N-D-N
Transmission Health Monitor
This must be reset manually using Allison DOC
program after correcting a clutch system issue.
Exit Prognostics
For a pushbutton shift selector, press the N (NEUTRAL)
range button.
For a bump lever shift selector, press the DIAGNOSTICS
range button until back to range display.
6
®
for PC diagnostic
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