Allison WTEC
Transcript of Allison WTEC
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Pro-Link/MPCAllison Transmissions
Users Manual
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Pro-Link/MPC Allison Transmissions
NNT, Inc., retains all ownership rights to the Pro-Link/MPC and its documentation. The Pro-Link/MPC source
code is a confidential trade secret of NNT, Inc.. You may not decipher or de-compile the Pro-Link/MPC
applications, develop source code for the Pro-Link
/MPC, or knowingly allow others to do so. The Pro-Link
/MPCand its documentation may not be sublicensed or transferred without the prior written consent of NNT, Inc..
This manual, as well as the software it describes, is furnished under license and may only be used or copied in
accordance with the terms of such license. The content of this manual is furnished for informational use only, is
subject to change without notice, and should not be construed as a commitment by NNT, Inc. NNT, Inc. assumes no
responsibility or liability for any errors or inaccuracies that may appear in this book.
Except as permitted by such license, no part of this publication may be reproduced, or transmitted, in any form or by
any means, electronic, mechanical, or otherwise, without the prior written permission of NNT, Inc..
NEXIQ Technologies is a trademark of NNT, Inc.
2005 NNT, Inc. All rights reserved. All other marks are trademarks or registered trademarks of the respective
holders. Pictures for illustration purposes only. Specifications are subject to change without notice.
www.nexiq.com
Rev: 12/05/2005
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Pro-Link/MPC Allison Transmissions Users Manual iii
Chapter 1:
Using This Manual ................................................. 1
Manual Overview........................................................................... 2
Conventions................................................................................... 3
Special Messages ................................................................................ 3
Specialized Text ................................................................................... 5
Chapter 2:
Getting Started..................................................... 7
Navigating Pro-LinkMenus and Screens.................................... 9
Connecting to a Transmission Application .................................. 10
Allison World Transmission ................................................................ 13
Allison CEC Transmission .................................................................. 14
Chapter 3:
Using the WTEC Diagnostics Menu........................ 15
Diagnostics Menu........................................................................ 16
Diagnostic Data .................................................................................. 17
Diagnostic Codes ............................................................................... 27
Shift Inhibits ........................................................................................ 29
I/O Wire States................................................................................... 32
Clear Active Indicators........................................................................ 34
Clear Inactive Codes.......................................................................... 35
Action Requests ................................................................................. 36
Trigger/Snapshot................................................................................ 44
Chapter 4:
Using the WTEC ECU/EEPROM Setup Menu............ 53The Setup Menu.......................................................................... 54
ECU Calibration.................................................................................. 55
View Customer Modifiable Constants................................................. 57
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iv Pro-Link /MPC Allison Transmissions Users Manual
Chapter 5:
Using the WTEC Printout Option ........................... 61
Using the Printout Option ............................................................ 62
Chapter 6:
Using the Allison CEC Application.......................... 65
Diagnostic Data........................................................................... 66
Diagnostic Codes ........................................................................ 67
Snapshot ..................................................................................... 73
Trigger On Specific............................................................................. 73
Trigger On Any Code ......................................................................... 74
Appendix A:
PID Fault Code Descriptions................................. 75
Appendix B:
SID Fault Code Descriptions................................. 87
Appendix C:
MID Fault Code Descriptions ................................ 93
Appendix D:
FMI Fault Code Descriptions................................. 99
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Pro-Link/MPC Allison Transmissions Users Manual v
Appendix E:
Warranty & Service ........................................... 101
Exclusive Warranty.................................................................... 102
Exclusive Remedy..................................................................... 102
Return Materials Authorization (RMA)....................................... 103
Return of Goods Policy.............................................................. 104
Return Goods Authorization (RGA) Procedure ................................ 105
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Pro-Link/MPC Allison Transmissions Users Manual 1
1
Using This Manual
uManual Overview, page 2
uConventions, page 3
This chapter provides an overview of this manuals organization and the conventionsused thought out.
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Chapter 1 Using This Manual
Manual OverviewThis manual provides basic and detailed information to support you in using the
Pro-Link/MPC Allison Transmissions application.
The manual is comprised of the following sections:
Table of Contentshelps you to find the information you are looking for
quickly and easily.
Using This Manualprovides an overview of this users manual.
Getting Startedprovides instructions on loading the Allison Transmis-
sions applications (i.e., WTEC and CEC).
Using the WTEC Diagnostics Menuprovides detailed instructions for
accessing and using each of the Diagnostics menu options.
Using the WTEC ECU/EEPROM Setup Menuprovides detailed in-
structions for accessing and using each of the Setup menu options.
Using the WTEC Printout Optionprovides detailed instructions for ac-
cessing and using the Printout option.
Using the Allison CEC Applicationprovides detailed instructions for ac-
cessing and using each of the applications menu options.
PID Fault Code Descriptions (Appendix) provides a table that com-
pares SAE and ATA Parameter Identification (PID) descriptions withPro-LinkPID descriptions.
SID Fault Code Descriptions (Appendix)provides a table that com-
pares SAE and ATA System Identification (SID) descriptions with Pro-
LinkSID descriptions used for MID 128.
MID Fault Code Descriptions (Appendix)provides a table that com-
pares SAE Microprocessor Identification (MID) descriptions with Pro-
LinkMID descriptions.
FMI Fault Code Descriptions (Appendix)provides a table that com-
pares SAE Failure Mode Identifier (FMI) descriptions with Pro-LinkFMI
descriptions.
Warranty and Service (Appendix)provides warranty and service
information.
Each chapter is introduced by an at-a-glance list of the chapters contents, along
with corresponding page numbers.
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- Conventions
Pro-Link/MPC Allison Transmissions Users Manual 3
ConventionsDifferent conventions are used in this users manual to draw your attention to
certain types of information. This section provides an overview of these
conventions.
Special Messages
Notes
NOTE provides explanations, comments, or tips related to the subject matter that
is being discussed.
Example:
NOTE:
i Refer to the page number provided for each described component for fur-ther details.
Important
IMPORTANT indicates a situation which, if not avoided, may result in damage to
the test equipment or vehicle.
Example:
IMPORTANT:
Keep all cables clear of moving or hot engine parts.
Cautions
CAUTION indicates a potentially hazardous situation which, if not avoided, may
result in moderate or minor injury to the operator or to bystanders.
Example:
CAUTION:
Do not use the unit to perform tests on household or industrial sources.
Warnings
WARNING indicates a potentially hazardous situation which, if not avoided, could
result in death or serious injury to the operator or bystanders.
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4 Pro-Link /MPC Allison Transmissions Users Manual
Chapter 1 Using This Manual
Example:
WARNING:
Wear gloves when handling hot engine components.
Stop
Information that needs to be considered before proceeding is presented in the fol-
lowing manner:
Troubleshooting
Information intended to help you to address or anticipate potential issues are pre-
sented in the following manner:
Before using this application, be sure to read the Pro-LinkUsers Manual
for:
Important safety information
Instructions on connecting the device to a vehicle
Instructions on properly inserting an application card
If the Loading Application message continuously appears, check the label
on the card to verify you are using the appropriate card for the given manu-
facturer/ECU.
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- Conventions
Pro-Link/MPC Allison Transmissions Users Manual 5
Specialized TextThe following specially formatted text is used to help you to differentiate certain
elements discussed within this manual:
Emphasis:Used to draw your attention to particularly important
information.
Field/Line:Used to highlight the name of a field or a line of text from a
display.
Example: The Request Lampline updates to reflect the current
request.
Menu items:Used to highlight a series of menu selections.
Example: From the Main Menu, select MPC UTILITIES4RS-232SERIAL PORT4TERMINAL SETUP....
Screen titles:Used to highlight the title of a screen showing on the de-
vicess readout window.
Example: The display shows the Review Snapshotmenu, which lists
the event captures at the bottom of the screen.
Selection:Used to highlight a selectable item, such as a menu option.
Example: From the Main Menu, select View Calibrations.
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Chapter 1 Using This Manual
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Pro-Link/MPC Allison Transmissions Users Manual 7
2
Getting Started
uNavigating Pro-LinkMenus and Screens, page 9
uConnecting to a Transmission Application, page 10
uAllison World Transmission, page 13
uAllison CEC Transmission, page 14
The Allison Transmission applications consist of two diagnostic tools that provide thecapability to reprogram and diagnose Allison transmissions using the Pro-Link
/MPC.There are four applications:
Allison WTEC
Allison CEC
Heavy Duty Systems (not covered in this manual)
MPC Utilities (not covered in this manual)
NOTE:
i Since these applications are supported by both the Pro-Link GRAPHIQ and the Pro-Link Plus, this manual uses Pro-Link to refer to both products.
This chapter provides instructions on connecting to the Allison Transmissions applications
(i.e., Allison WTEC and Allison CEC) and navigating through their menu hierarchies (refer
to Figure 2.1 Application Flow Chart, next).
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Chapter 2 Getting Started
Figure 2.1 Application Flow Chart
Allison WorldTransmission
Allison CEC
Printout
Diagnostic
ECU/EEPROMSetup
DiagnosticData
DiagnosticCodes
Snapshot
TriggerOnSpecific
Trigger On Any Code
DiagnosticData
DiagnosticCodes
Shift Inhibts
I/O Wire States
Clear ActiveIndicators
ClearInactiveCodes
Action Requests Enable ClutchTest
Disable Clutch Test
Active Fast Adaptive
ResetUnadaptiveShifts
ResetThrottleCalibration
ResetAutodetect
Trigger On Any Code
TriggerOnSpecific
TriggerManually
ClearTrigger
PrintSnapshot
Trigger/Snapshot
ECUCalibrationInformation
View CMCs
I/O Wire States
I/O Assignment
AutodetectInformation
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- Navigating Pro-LinkMenus and Screens
Pro-Link/MPC Allison Transmissions Users Manual 9
Navigating Pro-LinkMenus and ScreensTo use the features provided with this application, you will need to select from
various menus presented on the Pro-Link/MPC screen. Making selections typi-
cally involves using the arrow keys ( and )to navigate to a desired
option, then pressing the key.
The following convention is used throughout this manual to provide abbreviated
instructions on making on-screen selections.
Example instruction sheet:
1 From the WTEC main menu, select Diagnostics.
What this means:
1 From the WTEC main menu, use the and keys to select Diag-
nostics, then press .
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Chapter 2 Getting Started
Connecting to a Transmission Application
Use the following procedure to connect to an Allison Transmission application.
To connect to a transmission application:
1 Connect the Pro-Link/MPC to the diagnostic connector on the vehicle, andturn the key to the on position.
The following copyright screen appears and is displayed for approximately
one second:
The Pro-Link/MPC Start New Sessionscreen appears:
NOTE:
i if you select YES, you will start a new session. If you select NO, the Pro-Link/MPC displays data from a previous session.
2 Select YES.
Before using this application, be sure to read the Pro-LinkUsers Manual
for the following:
Important safety information
Instructions on connecting the device to a vehicle
Instructions on properly inserting an application card
MPC BIOS
2005 NNT, INC.
PRO-LINK 9000/MPC
START NEW SESSION?
[YES] NO
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- Connecting to a Transmission Application
Pro-Link/MPC Allison Transmissions Users Manual 11
The system selection screen appears.
3 Select the correct transmission type (either Allison WTECor Allison CEC).
4 Press .
The Pro-Link/MPC attempts to establish communication with the vehicles
on-board electronic control unit (ECU).
NOTE:
i If you select Allison WTEC, the cartridge automatically selects the properWorld Transmission type.
If the Pro-Link/MPC is successful in establishing communication with the
ECU, the following screen is displayed.
If the Pro-Link/MPC is connected to a World Transmission, refer to
Allison World Transmission (WTEC), next in this chapter.
If the Pro-Link/MPC is connected to an Allison CEC transmission, refer to
Allison CEC, later in this chapter.
PRO-LINK MPC
VERSION X.XX
----Selections----
ALLISON WTEC
LOADING
ALLISON WTEC
[FUNC] TO CANCEL
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Chapter 2 Getting Started
If the Pro-Link/MPC is unsuccessful in establishing communication with the
ECU, the following message is displayed:
5 Press to continue.
If the Pro-Link/MPC is still unable to establish communication with the
ECU, the following message is displayed:
NOTE:
i Please refer to the Multi-Protocol Cartridge (MPC) Utilities Manual for trou-bleshooting recommendations.
ALLISON WORLD
TRANSMISSIONS
LOOKING FOR WTEC
[FUNC] TO CANCEL
NO TRANSMISSION SEEN
ON 1708 BUS
[ENTER] TO CONTINUE
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- Connecting to a Transmission Application
Pro-Link/MPC Allison Transmissions Users Manual 13
Allison World TransmissionAfter communication has been established, the WTEC main menu appears:.
The following choices are available:
Diagnostics (Refer to Chapter 3, later in this manual.)
ECU/EEPROM Setup (Refer to Chapter 4, later in this manual.)
Printout (Refer to Chapter 5, later in this manual.)
WTEC II
VERSION X.XX
----Selections----
DIAGNOSTICS
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Chapter 2 Getting Started
Allison CEC TransmissionYou access the Allison CEC Transmissionapplication from the main system se-
lection screen.
1 Use the and keys to make your selection, and press .
The following menu choices are available:
MTB600 CLBT,V,HT700
CLBT5/6/9000 DP8000
2 When you see the proper transmission type on the display, select it and press
.
A screen similar to the following is displayed:
The following choices are available:
Diagnostic Data (Refer to Diagnostic Data, page 66, of this
manual.)
Diagnostic Codes (Refer to Diagnostic Codes, page 67, of thismanual.)
Snapshot (Refer to Snapshot, page 73, of this manual.)
NNT PRO-LINK/MPC
VERSION X.XX
----Selections----
ALLISON CEC
MTB600 CLBT,V,HT700
----Selections----
DIAGNOSTIC DATA
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Pro-Link/MPC Allison Transmissions Users Manual 15
3
Using the WTECDiagnostics Menu
uDiagnostics Menu, page 16
uDiagnostic Data, page 17
uDiagnostic Codes, page 27
uShift Inhibits, page 29
uI/O Wire States, page 32
uClear Active Indicators, page 34
uClear Inactive Codes, page 35
uAction Requests, page 36
uTrigger/Snapshot, page 44
This chapter provides detailed information on Allison World Transmission (WTEC)diagnostics. Options on the Diagnosticsmenu are covered, as are the options available
through the submenus.
NOTE:
i For information on connecting to WTEC and using the main menu, refer to the previouschapter of this manual.
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Chapter 3 Using the WTEC Diagnostics Menu
Diagnostics Menu1 Select DIAGNOSTICSfrom the WTEC main menu using the and
keys.
2 Press .
The DIAGNOSTICSmenu displays:
The following menu choices are available:
Diagnostic Data
Diagnostic Codes
Shift Inhibits
I/o Wire States
Clear Active Indicators
Clear Inactive Codes
Action Requests
Trigger/snapshot
3 Use the and keys to scroll through the Diagnosticsmenu. Press
to select menu choice.
WTEC II
VERSION X.XX
----Selections----
DIAGNOSTICS
DIAGNOSTICS
----Selections----
DIAGNOSTIC DATA
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- Diagnostics Menu
Pro-Link/MPC Allison Transmissions Users Manual 17
Diagnostic Data
After selecting Diagnostic Datafrom the Diagnosticsmenu, a screen similar to
the following screen appears:
Use the and keys to scroll through the diagnostic data list.
The following tables show the WTEC II and WTEC III diagnostic data covered by
this application. The Diagnostic Data List Definitions describe the parameters
used in the diagnostic application. The list is in the approximate order displayed
by Pro-Link/MPC but will vary based on the transmission system being diag-
nosed. Parameters not available will be indicated on the right hand side of the
screen by a N/A symbol.
NOTE:
i Detailed diagnostic and repair procedures as well as specifications may befound in the system manufacturers shop manual.
# ACTIVE CODES 5
IGN STATUS ON
SOL APPLY VOLTS 11.6V
SUMP 50F
TABLE 1. WTEC II Data List
ParameterSampleValue Diagnostic Data List Definition
#ACTIVE CODES 0 Indicates the number of currently active codes (up to
five) in the diagnostic codes data list. Placing the
cursor on this line and pressing provides ashortcut to the diagnostic codes data list to view all
diagnostic codes, active or inactive. To return to the
diagnostic data list, press the key.
IGN STATUS ON Ignition StatusThe ECU interpretation of ignition
voltage. When voltage is below a calibration value, the
ignition is considered to be off.
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Chapter 3 Using the WTEC Diagnostics Menu
IGN VOLTS
(WTEC II only)
11.1V Ignition VoltsThis voltage is used to determine if the
vehicle ignition is turned on. The ECU shuts off when
ignition is turned off and output speed is too low to
measure.
SOL APPLY VOLTS 11.1V Solenoid Apply VoltsThis voltage is measured inside
the ECU, downstream of some power supply compo-
nents. It is used for controlling the solenoid currents,
and for detecting ECU supply voltage that is either too
high or too low for normal operation.
DIMMER VOLTS
(WTEC II only)
11.8V This voltage is used to control the display intensity.When it is zero, the ECU assumes that the headlights
are off and sets the display to full intensity. When the
dimmer voltage rises above a calibration level, the
display is set to minimum intensity. As the dimmer
voltage rises up to the same level as ignition voltage,
the display intensity also rises.
SUMP 161 F Sump temperature is measured by a thermistor located
in t he transmission sump. The function of the ther-
mistor is to detect cold oil temperature and limit
transmission operation until sump oil has reached a
minimum recommended temperature. It also serves to
limit transmission operation when the oil has reached
too high of a temperature. The ECU uses the sumptemperature information to assist in estimating clutch
fill times (affects smoothness of shifting) and to
estimate solenoid resistance (for current control). In
addition, the sump temperature is used as a variable to
permit oil level readings when the sump... and to limit
those readings to a range of between 140F and 220F.
OIL LVL AVAIL NO
SENSOR
Oil Level AvailableThis is a YES or NO response to
Autodetect.
OIL LVL +0QT Oil LevelThe volume of oil that needs to be added or
removed from the transmission to get the correct oil
level.
OIL LVL CNTS 155 Oil Level CountsSlight fluctuations in the counts
indicate proper function of the sensor as it responds to
variations caused by oil flow within the transmission.
TABLE 1. WTEC II Data List
ParameterSampleValue Diagnostic Data List Definition
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- Diagnostics Menu
Pro-Link/MPC Allison Transmissions Users Manual 19
SELECTED N This shows the actual gear selected by the operator.
The transmission will automatically shift from its
starting gear up to the gear range selected. Actual
means that the gears are displayed in the ECUs
internal naming scheme, L-6, N, and R.
ATTAINED N1 This shows the actual gear that is commanded by the
ECU at the moment. Actual means that the gears are
displayed in the ECUs internal naming scheme, L-6
with all the different neutral gears, and showing C or
L for converter or lock-up operation. Actual range
will always be the same for a given gear, while dis-
played ranges, described next in this table, can be
calibrated to display anything for a given gear.
DISPLAYED N This is the gear selected by the operator as shown on
the shift selector display. The ECU calibration deter-
mines what number is displayed for any given gear.
DISP ATTAINED N This is the actual gear that is commanded by the ECU
at the moment.
TPS PERCENT 0.0% This is the ECUs calculation of throttle opening, 0 to
100 percent. It can be used to troubleshoot problems
with the throttle linkage/TPS system, or SAE J-1939 or
SAE J-1587 link to electronic engines.
TPS CNTS 55 TPS CountsThis is the raw voltage signal as read
from the TPS. The ECU calculates the throttle percent
from this value, then voltage at closed throttle, and the
voltage at WOT. This value can be used to troubleshoot
problems with the throttle linkage/TPS system. It is not
applicable to vehicles that use the SAE J-1587 or J-
1939 link to electronic engines instead of a TPS. A
steady, low number of counts or zero counts will always
be displayed when the transmission is communicating
with an electronic engine on the serial communication
interface lines.
INPUT SPEED 705 RPM The same as engine speed when the engine is directly
connected to the transmission. This value may not be
reasonable if there is a problem anywhere in the speed
system (i.e., broken wire, runout on speed gear, or
ECU calibration with wrong number of teeth).
TABLE 1. WTEC II Data List
ParameterSampleValue Diagnostic Data List Definition
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Chapter 3 Using the WTEC Diagnostics Menu
TURBIN SPEED 685 RPM Turbine SPD RPMThe same as input speed when
the converter lockup clutch is applied. It can be
compared to output speed to check gear ratios. This
value may not be reasonable if there is a problem
anywhere in the speed system (i.e., broken wire,
runout on speed gear, or ECU calibration with wrong
number of teeth).
OUTPUT SPEED 1 RPM Output SPD RPMOutput speed is used to determine
shift points. The service tool can be used to verify that
the transmission shifts when it is supposed to. It can
also be compared to turbine speed to check gear
ratios. This value may not be reasonable if there is a
problem anywhere in the speed system (i.e., broken
wire, runout on speed gear, or ECU calibration with
wrong number of teeth).
LOCKUP 0 RPM This is the ouput speed when the last shift into, or out
of lockup occurred.
RNG SHIFT 0 RPM Range ShiftThis is the output speed when the last
range shift occurred. A shift from one gear range to
another is a range shift.
NEXT UP SHFT 0 RPM This is the output shift at which the next upshift will
occur. Its value depends on throttle position and the
range attained.
NEXT DOWN SHFT 0 RPM This is the output speed at which the next downshift will
occur. Its value depends on throttle position and the
range attained.
DO NOT SHIFT
(WTEC II only)
OFF Status of the Do Not Shift output from the ECU to the
Do Not Shift light on the dashboard.
REVERSE
WARNING
OFF A command from the ECU to the reverse warning relay
to activate the audible warning device which indicates
that the vehicle is in reverse gear.
NEUTRAL START ON A command from the ECU to relay which allows the
engine to be started in neutral only.
RTDR REQ 0.0% Retarder Request%This is the ECUs calculation of
the retarder request, 0 to 100 percent.
TABLE 1. WTEC II Data List
ParameterSampleValue Diagnostic Data List Definition
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Pro-Link/MPC Allison Transmissions Users Manual 21
RTDR REQ CNTS 85 Retarder Request CountsThis is the raw voltage as
read from the retarder modulation sensor. The ECU
calculates the retarder request percent from this value.
This value can be used to troubleshoot problems with
the retarder modulation sensor.
RTDR TEMP 195 F Retarder TemperatureThis is the temperature of the
oil in the retarder cavity.
C3 PRESSURE SW OFF The C3 Pressure Switch closes when the C3 clutch is
applied. (Example, Reverse, 3rd, or, 5th gears)
A SOLENOID ON This is the commanded state (ON or OFF) of solenoids
A through N.
B SOLENOID ON This is the commanded state (ON or OFF) of solenoids
A through N.
C SOLENOID OFF This is the commanded state (ON or OFF) of solenoids
A through N.
D SOLENOID OFF This is the commanded state (ON or OFF) of solenoids
A through N.
E SOLENOID ON This is the commanded state (ON or OFF) of solenoids
A through N.
F SOLENOID OFF This is the commanded state (ON or OFF) of solenoids
A through N.
G SOLENOID OFF This is the commanded state (ON or OFF) of solenoids
A through N.
H SOLENOID OFF This is the commanded state (ON or OFF) of solenoids
A through N.
J SOLENOID N/A This is the commanded state (ON or OFF) of solenoids
A through N.
K SOLENOID OFF This is the commanded state (ON or OFF) of solenoids
A through N.
N SOLENOID N/A This is the commanded state (ON or OFF) of solenoids
A through N.
CLTCH TST ENABL OFF Clutch Test EnabledThe state (ON or OFF) of the
Clutch Test Mode. See Enable Clutch Test, page 38,
later in this chapter.
TABLE 1. WTEC II Data List
ParameterSampleValue Diagnostic Data List Definition
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22 Pro-Link/MPC Allison Transmissions Users Manual
Chapter 3 Using the WTEC Diagnostics Menu
TABLE 2. WTEC III Data List
ParameterSampleValue Diagnostic Data List Definition
#ACTIVE CODES 5 Indicates the number of currently active codes (up to
five) in the diagnostic codes data list. Placing the
cursor on this line and pressing provides a
shortcut to the diagnostic codes data list to view all
diagnostic codes, active or inactive. To return to the
diagnostic data list, press the key.
IGN STATUS ON Ignition StatusThe ECU interpretation of ignition
voltage. When voltage is below a calibration value, the
ignition is considered to be off.
SOL APPLY VOLTS 11.4V Solenoid Apply VoltsThis voltage is measured inside
the ECU, downstream of some power supply compo-
nents. It is used for controlling the solenoid currents,
and for detecting ECU supply voltage that is either too
high or too low for normal operation.
SUMP 147 F Sump temperature is measured by a thermistor located
in t he transmission sump. The function of the ther-
mistor is to detect cold oil temperature and limit
transmission operation until sump oil has reached a
minimum recommended temperature. It also serves to
limit transmission operation when the oil has reached
too high of a temperature. The ECU uses the sump
temperature information to assist in estimating clutch
fill times (affects smoothness of shifting) and to
estimate solenoid resistance (for current control). In
addition, the sump temperature is used as a variable to
permit oil level readings when the sump... and to limit
those readings to a range of between 140F and 220F.
OIL LVL AVAIL NO Oil Level AvailableThis is a YES or NO response to
Autodetect.
OIL NO
SENSOR
Oil LevelThe volume of oil that needs to be added or
removed from the transmission to get the correct oil
level.
OIL LVL CNTS 178 Oil Level CountsSlight fluctuations in the counts
indicate proper function of the sensor as it responds tovariations caused by oil flow within the transmission.
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- Diagnostics Menu
Pro-Link/MPC Allison Transmissions Users Manual 23
SELECTED N This shows the actual gear selected by the operator.
The transmission will automatically shift from its
starting gear up to the gear range selected. Actual
means that the gears are displayed in the ECUs
internal naming scheme, L-6, N, and R.
ATTAINED N1 This shows the actual gear that is commanded by the
ECU at the moment. Actual means that the gears are
displayed in the ECUs internal naming scheme, L-6
with all the different neutral gears, and showing C or
L for converter or lock-up operation. Actual range
will always be the same for a given gear, while dis-
played ranges, described next in this table, can be
calibrated to display anything for a given gear.
DISPLAYED N This is the gear selected by the operator as shown on
the shift selector display. The ECU calibration deter-
mines what number is displayed for any given gear.
PRI SEL OUT
(WTEC III only)
NEUTRAL Primary selector OutputRaw shift selector, data
based on five secondary selector input wires. Invalid
data displayed as FAULT.
SEC SEL OUT
(WTEC III only)
FAULT Secondary Selector OutputRaw shift selector, data
based on five secondary selector input wires. Invalid
data displayed as FAULT.
MODE ICON OFF Indicates the mode button has been activated and the
input function assigned to the mode button has been
regulated.
THROT SRC UNKNOWN Throttle SourceThis is detected by Autodetect,
Analog, J-1587, or J-1939. PWM can be manually
selected from the reprogramming section of this
manual.
TPS PERCENT 0.0% This is the ECUs calculation of throttle opening, 0 to
100 percent. It can be used to troubleshoot problems
with the throttle linkage/TPS system, or SAE J-1939 or
SAE J-1587 link to electronic engines.
TABLE 2. WTEC III Data List
ParameterSampleValue Diagnostic Data List Definition
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TPS CNTS 27 TPS CountsThis is the raw voltage signal as read
from the TPS. The ECU calculates the throttle percent
from this value, then voltage at closed throttle, and the
voltage at WOT. This value can be used to troubleshoot
problems with the throttle linkage/TPS system. It is not
applicable to vehicles that use the SAE J-1587 or J-
1939 link to electronic engines instead of a TPS. A
steady, low number of counts or zero counts will always
be displayed when the transmission is communicating
with an electronic engine on the serial communication
interface lines.
INPUT SPEED 700 RPM The same as engine speed when the engine is directly
connected to the transmission. This value may not be
reasonable if there is a problem anywhere in the speed
system (i.e., broken wire, runout on speed gear, or
ECU calibration with wrong number of teeth).
TURBIN SPEED 692 RPM Turbine SPD RPMThe same as input speed when
the converter lockup clutch is applied. It can be
compared to output speed to check gear ratios. This
value may not be reasonable if there is a problem
anywhere in the speed system (i.e., broken wire,
runout on speed gear, or ECU calibration with wrong
number of teeth).
OUTPUT SPEED 1 RPM Output SPD RPMOutput speed is used to determine
shift points. The service tool can be used to verify that
the transmission shifts when it is supposed to. It can
also be compared to turbine speed to check gear
ratios. This value may not be reasonable if there is a
problem anywhere in the speed system (i.e., broken
wire, runout on speed gear, or ECU calibration with
wrong number of teeth).
LOCKUP 0 RPM This is the ouput speed when the last shift into, or out
of lockup occurred.
RNG SHIFT 0 RPM Range ShiftThis is the output speed when the last
range shift occurred. A shift from one gear range to
another is a range shift.
NEXT UP SHFT 0 RPM This is the output shift at which the next upshift will
occur. Its value depends on throttle position and the
range attained.
TABLE 2. WTEC III Data List
ParameterSampleValue Diagnostic Data List Definition
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NEXT DN SHFT 0 RPM This is the output speed at which the next downshift will
occur. Its value depends on throttle position and the
range attained.
C3 PRESSURE SW OFF The C3 Pressure Switch closes when the C3 clutch is
applied. (Example, Reverse, 3rd, or, 5th gears)
CHECK TRANS
(WTEC III only)
ON Check TransmissionStatus of CHECKTRANS output
from ECU to CHECKTRANS light on the dashboard.
REVERSE
WARNING
ON A command from the ECU to the reverse warning relay
to activate the audible warning device which indicatesthat the vehicle is in reverse gear.
NEUTRAL START ON A command from the ECU to relay which allows the
engine to be started in neutral only.
RETARD AVAIL NO Retarder AvailableThis is the response from Autode-
tect (YES or NO).
RTDR REQ 0.0% Retarder Request%This is the ECUs calculation of
the retarder request, 0 to 100 percent.
RTDR REQ CNTS 231 Retarder Request CountsThis is the raw voltage as
read from the retarder modulation sensor. The ECU
calculates the retarder request percent from this value.
This value can be used to troubleshoot problems with
the retarder modulation sensor.
RTDR TEMP 185 F Retarder TemperatureThis is the temperature of the
oil in the retarder cavity.
ENG COOL CNTS 110 Engine Coolant CounterThis gives the direct voltage
measurement in counts of Engine Coolant Tempera-
ture Sensor.
ENG COOL 85 F Engine CoolantTemperature detected or broadcast
of the engine coolant. This is used to restrict retarder
operation at higher temperatures.
ENG COOL SRC ANALOG Engine Coolant SourceThis is the source of the
Engine Coolant Temperature signal (Analog, J-1587, or
J-1939).
A SOLENOID ON This is the commanded state (ON or OFF) of solenoids
A through N.
B SOLENOID ON This is the commanded state (ON or OFF) of solenoids
A through N.
TABLE 2. WTEC III Data List
ParameterSampleValue Diagnostic Data List Definition
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C SOLENOID OFF This is the commanded state (ON or OFF) of solenoids
A through N.
D SOLENOID OFF This is the commanded state (ON or OFF) of solenoids
A through N.
E SOLENOID ON This is the commanded state (ON or OFF) of solenoids
A through N.
F SOLENOID OFF This is the commanded state (ON or OFF) of solenoids
A through N.
G SOLENOID OFF This is the commanded state (ON or OFF) of solenoidsA through N.
H SOLENOID OFF This is the commanded state (ON or OFF) of solenoids
A through N.
J SOLENOID N/A This is the commanded state (ON or OFF) of solenoids
A through N.
N SOLENOID N/A This is the commanded state (ON or OFF) of solenoids
A through N.
J1939 ABS ACTIVE NO This is the current ABS Active state (YES or NO) on the
J1939 bus.
J1939 KICK ACTIVE NO This is the current Kickdown Active state (YES or NO)
on the J1939 bus.
J1939 ENG BRK LV N/A This is the current Engine Brake Level (OFF, LO, MED,
HI) on the J1939 bus.
CLTCH TST ENABL OFF Clutch Test EnabledThe state (ON or OFF) of the
Clutch Test Mode. See Enable Clutch Test, page 38,
later in this chapter.
PERCENT LOAD 0 - 100% This is the current Percent Load.
TABLE 2. WTEC III Data List
ParameterSampleValue Diagnostic Data List Definition
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Diagnostic Codes1 Use the and keys to locate Diagnostic Codesfrom the Diag-
nosticsmenu. Press .
If no diagnostic codes are present, the following screen appears:
2 Press to return to the Diagnosticsmenu.
If diagnostic codes are present, a screen similar to the following appears:
3 Use the and keys to scroll through the available active codes.
The first line on this screen is the Header Line. The Header Line defines
each of the five fields.
The following table describes each symbol displayed on the Header Line.
---EMPTY---
CODE d1 ACTV CTR IGN
23 12 YES 60
PRI SHIFT SELECTOR
OR RSI LINK FAULT
Code Description
Code The code is a four-digit number. The first two digits
represent main code (e.g., 23 in the above screen),
while the second two digits represent sub code (e.g.,
12 in the above screen).
d The field d stands for Diagnostic Code List. Possible
displays for d are the numbers 1 through 5. The d
number relates to the single code you are viewing ofthe five possible.
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4 Use the and keys to scroll through the active codes.
5 Press to return to the main menu.
ACTV ACTV indicates if the code is Active Indicator of not.
The display shows either YES or NO. Active Indicator
indicates a code which is currently active or which
conditions for clearing the code have not been met.
Restrictions to operation may or may not occur and
vary by code.
CTR CTR is the Event Counter. The Event Counter tells
you how many times this event or condition occurred.
IGN IGN is the Ignition Cycle Counter, telling you how
many times the ignition switch was cycled since this
code was detected.
Lines three and four are a plain English description of
the code meaning. The two lines are different for each
code.
Code Description
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Shift InhibitsShift inhibits are conditions present in the transmission that prevent shifting from
taking place because of the state of the transmission. This information is used to
determine what condition, if any, is inhibiting normal transmission operation. Shift
Inhibitsdo not generate diagnostic codes as there is no malfunction occurring in
the system.
1 Using the and keys, scroll through the Diagnostics menu untilSHIFT INHIBITSappears.
2 Press .
The following screen appears:
3 Use the and keys to scroll through the Shift Inhibitslist.
Each inhibitor will have one of the following designations:
Y = inhibitor active; shifting is notpermitted
N = inhibitor inactive; transmission shifting is permitted
DIAGNOSTICS
----Selections----
SHIFT INHIBITS
INPUT SPD N
SPL FUNC RNG N
MED COLD OIL N
WHELL LOCK N
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The Pro-Link/MPC displays a Y for Yes and an N for No when the following
inhibits are active or inactive respectively:
Shift Inhibit Description
INPUT SPEED If input (engine) speed is above a calibration
value, and the splogic output speed is LO,
then neutral to drive and neutral to reverse
shifts are not allowed. The display updates
instantly from N to Y but will only update from Y
to N after a range selection.
SPECIAL FUNCTION
RANGE (SPL FUNC
RNG)
This inhibit is active when an I/O function input
wire (using the direction change enable func-
tion) disables the following shifts:
Neutral to Drive
Neutral to Reverse
Drive to Reverse
Reverse to Drive
This display will only update when a range is
selected.
MEDIUM COLD OIL When the transmission oil is cold, this inhibit
limits operation to reverse, neutral, and second
and higher forward ranges. This display
updates instantly.
WHEEL LOCK When rapid deceleration of the output shaft is
detected, this inhibit will prevent downshifts.
This condition only lasts for a few seconds.
SPLOGIC THROTTLE
and SPLOGIC OUT SPD
SPLOGIC THROTTLE and SPLOGIC OUT
SPD inhibitors list the LO and HI state condi-
tions. SPLOG=INHIB WARN is not followed by
a state condition indicator. This parameter is a
special pattern logic action code and can be
different at various times.
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SPECIAL PATTERN
LOGIC
Special Pattern Logic will do one of the follow-
ing (depending on the status of splogic
throttle (HI/LO) and splogic output speed (HI/
LO), which updates instantly):
Inhibit WarningDirection change shifts
are inhibited and the select digit flashes
with a continuous warning tone.
CFNFRThis response pre-selects down
to a calibration gear ratio, and then shifts to
neutral. There is no warning tone and the
select digit will not flash.
Neutral WarningThe transmission will
shift to neutral, and the select digit will flash
with a continuous warning tone.
Enable ShiftsThis allows normal trans-
mission operation.
SP LOGWill only update as ranges are
selected by the operator.
I/O WIRE STATES I/O Wire States shows the status of each avail-
able input and output wire for the ECU in the
configuration selected. It also indicates if the
wire is in use and what function the input or
output serves. Each wire is described asfollows:
WIRE XXX IN X OFFThis is the pro-
grammed input function, giving the wire
circuit number, the input function number,
and the ON or OFF state of that function on
the first line. The second line in the data
display is an English description of that
function.
WIRE XXX OUT # OFFThis is pro-
grammed output function, giving the wire
circuit number, the input function number,
and the ON or OFF state of that function on
the first line. The second line in the data
display is an English description of that
function.
Shift Inhibit Description
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I/O Wire States1 Use the and keys to scroll through the DIAGNOSTICSmenu
until I/O WIRE STATESappears.
2 Press .
A screen similar to the following appears:
3 Use the and keys to scroll through the available wire states.
The following tables describe sample WTEC and WTEC III/IV wire states;
actual values change based on the calibration:
WIRE 119 IN#19 OFF
ENG BRAKE REQUEST
TABLE 3. WTEC II I/O Sample Wire States
Wire #Sample
FunctionSample
State Sample Defintion
117 IN#00 OFF INPUT NOT USED
118 IN#00 OFF PTO ENABLE
119 IN#19 OFF ENG BRAKE REQUEST
137 IN#40 OFF SERVICE BRK STATUS
153 IN#18 OFF AUX FUNC INHB SPL1
154 IN#20 OFF ANTI-LOCK BRAKE
155 IN#38 OFF AUX FUNC INHB SPL2
163 IN#00 OFF INPUT NOT USED
MODE IN#01 OFF SECOND SHIFT SCHED
105 OUT#00 OFF OUTPUT NOT USED
112 OUT#00 OFF OUTPUT NOT USED
114 OUT#22 OFF NEUT INDICATOR PTO
125 OUT#00 OFF OUTPUT NOT USED
132 OUT#02 OFF ENGINE BRAKE ENABLE
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4 Press to return to the DIAGNOTICSmenu.
TABLE 4. WTEC III I/O Wire States
Wire #Sample
FunctionSample
State Sample Description
117 IN#00 OFF INPUT NOT USED
118 IN#00 OFF INPUT NOT USED
119 IN#19 OFF ENG BRAKE REQUEST
126 IN#00 OFF INPUT NOT USED
137 IN#40 OFF SERVICE BRK STATUS
153 IN#01 OFF SECOND SHIFT SCHED
154 IN#00 OFF INPUT NOT USED
155 IN#17 ON AUX FUNC INHB STD
163 IN#54 OFF RETARDER ENABLE
169 IN#45 OFF ENG BRAKE REQUEST #2
177 IN#00 OFF INPUT NOT USED
178 IN#00 OFF INPUT NOT USED
MODE IN#15 OFF PTO ENABLE
105 OUT#10 OFF SUMP/RTDE TEMP IND
112 OUT#12 OFF PTO ENABLE 1
114 OUT#04 ON RANGE INDICATOR
125 OUT#09 OFF RETARDER INDICATOR
132 OUT#02 OFF ENGINE BRAKE ENABLE
166 OUT#00 OFF OUTPUT NOT USED
167 OUT#05 OFF OUTPUT SPD INLK A
176 OUT#00 OFF OUTPUT NOT USED
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Chapter 3 Using the WTEC Diagnostics Menu
Clear Active Indicators1 Use the and keys to scroll through the DIAGNOSTICSmenu
until CLEAR ACT INDICATORSappears.
2 Press .
The following screen appears:
3 Press .
The following screen appears:
The Pro-Link
/MPC displays the DIAGNOSTICSmenu.
If the vehicle is still in motion, the following screen appears:
When all Active Indicators have been cleared, the following screen appears:
4 Press to return to the DIAGNOSTICSmenu.
DIAGNOSTICS
----Selections----
CLEAR ACT INDICATORS
CONTINUING WILL
CLEAR ACTIVE
INDICATORS
[CONTINUE] CANCEL
OUTPUT SPEED TOO HI
[ENTER] TO CONTINUE
ACTIVE INDICATORSHAVE BEEN CLEARED
[ENTER] TO CONTINUE
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Clear Inactive Codes1 Use the and keys to scroll through the DIAGNOSTICSmenu
until CLEAR INACTIVE CODESappears.
2 Press .
The following screen appears:
3 Press to continue.
The following two screens appear:
4 Press to return to the DIAGNOSTICSmenu.
If you do not wish to erase the Inactive Codes, press the key to select
CANCEL. Then press to return to the DIAGNOSTICS menu. The
Inactive Codes will remain in the system memory.
CONTINUING WILL
CLEAR INACTIVE CODES
[CONTINUE] CANCEL
CLEARING INACTIVE
CODES
PLEASE WAIT
[FUNC] TO CANCEL
INACTIVE CODES
HAVE BEEN CLEARED
[ENTER] TO CONTINUE
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Chapter 3 Using the WTEC Diagnostics Menu
Action Requests1 Use the and keys to scroll through the DIAGNOSTICSmenu
until ACTION REQUESTSappears.
2 Press .
The following menu options appear:
Enable Clutch Test
Disable Clutch Test
Activate Fast Adaptive
Reset Unadaptive Shifts
Reset Throttle Calibration
Reset Autodetect
Certain conditions must be met for these actions to be performed. You may
receive the following message while attempting to perform these actions:
This message occurs if the vehicle is moving. Stop the vehicle in a safe
place and set the parking brake so the vehicle will not move. Shift the trans-
mission into Neutral. Press .
OUTPUT SPEED TOO HI
[ENTER] TO CONTINUE
VEHICLE MUST BE
STOPPED AND NEUTRAL
SELECTED TO CONTINUE
[ENTER] TO CONTINUE
NOT IN NEUTRAL
[ENTER] TO CONTINUE
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This message occurs when you are stopped but the transmission is in any
other position besides Neutral. Set the parking brake and shift the transmis-
sion into Neutral. Press .
The ECU transmitted a code the Pro-Link/MPC did not understand. Press
. The Pro-Link/MPCwill repeat the requested action.
ECU RESPONSED
UNDEFINED
[ENTER] TO CONTINUE
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Enable Clutch TestTo run the Enable Clutch test:
1 From the Action Requestsmenu, select Enable Clutch Test, and press.
The following screen appears.
2 Press .
The following screens appear:
3 Use the and keys to scroll through the list of Diagnostic Data.
4 Press to return to the Action Requestsmenu.
5 Do one of the following:
Continue to make selections from the Action Requestsmenu.
or
Press to return to the Diagnosticsmenu.
CONTINUING WILL
ENABLE CLUTCH TEST
[CONTINUE] TO CANCEL
ENABLING CLUTCH TEST
PLEASE WAIT...
[FUNC] TO CANCEL
J1939 ABS ACTIVE NO
J1939 KICK ACTIVE NO
J1939 ENG BRK LV N/A
CLTCH TST ENABL ON
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Disable Clutch TestTo run the Disable Clutch test:
1 From the Action Requestsmenu, select Disable Clutch Test.
2 Press .
The following screen appears:
3 Press to return to the Action Requestsmenu.
4 Do one of the following:
Continue to make selections from the Action Requestsmenu.
or
Press to return to the Diagnosticsmenu.
CONTINUING WILL
DISABLE CLUTCH TEST
[CONTINUE] CANCEL
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Activate Fast AdaptiveUse the Activate Fast Adaptiveoption if you want the shifts to have a faster con-
vergence. A faster convergence leads to a smoother shifting condition.
To use the Activate Fast Adaptive option:
1 From the Action Requestsmenu, select Activate Fast Adaptive.
2 Press .
The following screen appears.
3 Press .
4 Press to return to the Action Requestsmenu.
5 Do one of the following:
Continue to make selections from the Action Requestsmenu.
or
Press to return to the Diagnosticsmenu.
CONTINUING WILL
ACTIVATE FAST
ADAPTIVE
[CONTINUE] TO CANCEL
FAST ADAPTIVE HAS
BEEN ACTIVATED
[ENTER] TO CONTINUE
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Reset Unadapted ShiftsTo use the Reset Unadapted Shifts option:
1 From the Action Requestsmenu, select Reset Unadapted Shifts.
2 Press .
The following screen appears:
3 Press enter.
The following screen appears:
4 Press enter to return to the Action Requestsmenu.
5 Do one of the following:
Continue to make selections from the Action Requestsmenu.
or
Press to return to the Diagnosticsmenu.
CONTINUING WILL
RESET UNADAPTED
SHIFTS
[CONTINUE] CANCEL
SHIFTS HAVE BEEN
RESET TO UNADAPTED
CYCLE IGNITION POWER
[ENTER] TO CONTINUE
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Reset Throttle CalibrationTo use the Reset Throttle Calibration option:
1 From the Action Requestsmenu, select Reset Throttle Calibration.
The following screen appears:
2 Press .
The following screen appears:
3 Press to return to the Action Requestsmenu.
4 Do one of the following:
Continue to make selections from the Action Requestsmenu.
or
Press to return to the Diagnosticsmenu.
CONTINUING WILL
RESET THROTTLE
CALIBRATION
[CONTINUE] CANCEL
THROTTLE CALIBRATION
HAS BEEN RESET
[ENTER] TO CONTINUE
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Reset AutodetectUse this option to reset all Customer Modifiable Constants (CMCs) that have been
set to Autodetect. CMCs that can be reset include, but are not limited to the
following:
Retarder
Oil Level
TPS Source
Engine Coolant Source
To use the Reset Autodetect option:
1 From the Action Requestsmenu, select Reset Autodetect.
2 Press .
The following screen appears:
3 Press .
The following screen appears:
4 Press to return to the Action Requestsmenu.
5 Do one of the following:
Continue to make selections from the Action Requestsmenu.
or
Press to return to the Diagnosticsmenu.
CONTINUING WILL
RESET AUTODETECT
PARAMETERS
[CONTINUE] CANCEL
AUTODETECT WILL
RESTART AT NEXT
ENGINE START
[ENTER] TO CONTINUE
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Chapter 3 Using the WTEC Diagnostics Menu
Trigger/SnapshotTrigger/Snapshotenables the Pro-Link/MPC to record data from the vehicle
while it is being driven. Data can then be played back when you return to the shop.
You can use this feature to identify intermittent problems that would be difficult to
locate by any other method. Depending on the data update rate selected, the Pro-
Link/MPC can record up to 30 minutes of data.
When using the Trigger/Snapshotoption, the Pro-Link/MPC continuously
records data. When the memory is full, the oldest data is dropped and new data
is added. You choose what will trigger data recording. The trigger is a mark in
the recording so you can find that exact spot later during playback. You choose
what to use as a trigger. Because driveability problems are often related to active
codes, you can have the Pro-Link/MPC trigger when an active code is set. You
can choose a specific code, or have the trigger set if any code is stored while
Trigger/Snapshotis enabled.
You decide how much data will be stored before or after a trigger has been set. It
is sometimes useful to record data that was stored before a trigger was set,
looking for a trend that led up to setting the trigger. It can also be helpful to look at
data that was recorded after a trigger was set. You decide ahead of time how
much data will be recorded before and after the trigger point.
You can also review Snapshot data captured once the trigger has activated by se-
lecting a data list. For more information on how to review Snapshot data, refer to
Reviewing Snapshot Data later in this chapter.
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You access Trigger/Snapshot functions from the MPC Utilitiesmenu or the
WTEC Diagnosticsmenu.
The Pro-Link/MPC uses a fault code (specific or any) as the trigger. You specify
the trigger point by choosing from the following:
Trigger on Any Code
Trigger on Specific
Trigger Manually
Clear Trigger
Print Snapshot
To use the Trigger/Snapshot option and set the trigger point:
1 From the Diagnosticsmenu, select Trigger/Snapshot .
2 Press .
The following screen appears:
3 Use the and keys to make your selection.
TRIGGER/SNAPSHOT
----Selections----
TRIGGER ON ANY CODE
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Trigger on Any CodeIf you select Trigger on Any Codeas your trigger point, the Pro-Link/MPC
triggers on any fault code when an active fault occurs.
To use the Trigger on Any Code option:
1 From the Trigger/Snapshot menu, select Trigger on Any Code.
2 Press .
The following screen appears:.
3 Press to continue.
When an active fault occurs, the following screen appears:
4 Press to return to the previous screen.
TRIGGER/SNAPSHOT
----Selections----
TRIGGER ON ANY CODE
TRIGGER IS SET TO
ANY CODE
[ENTER] TO CONTINUE
TRIGGER OCCURRED AT
XX-XX-XX
[ENTER] TO CONTINUE
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Trigger on SpecificIf you select Trigger on Specific as your trigger point, the Pro-Link/MPC triggers
only on the specific code you designate.
To use the Trigger on Specific option:
1 From the Trigger/Snapshot menu, select Trigger on Specific.
2 Press .
The following screen appears:
3 Use the and keys to scroll through the specific WTEC codes until
the appropriate code is displayed.
4 Press .
The following confirmation screen appears:
The trigger is activated when the selected code has an active fault.
TRIGGER/SNAPSHOT
----Selections----
TRIGGER ON SPECIFIC
SELECT TRIGGER CODE
12 12
TRIGGER SET TO 21 12
21 THROTTLE SENSORFAILED LOW
[CONTINUE] CANCEL
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Trigger Manually
If you select Trigger Manually, you determine the trigger point by pressing any
numeric key on the Pro-Link/MPC. Keep the Press Any Numeric Key to Fire
Trigger screen active while driving the vehicle, then set the trigger point at your
discretion.
To use the Trigger Manually option:
1 From the Trigger/Snapshot menu, select Trigger Manually.
2 Press .
The following screen appears:
3 While driving the vehicle, press any numeric key to manually set the trigger
point.
The following screen appears:
Line two is the length of time the Pro-Link/MPC has been on before the
trigger point was set.
TRIGGER/SNAPSHOT
----Selections----
TRIGGER MANUALLY
PRESS ANY NUMERIC
KEY TO
FIRE TRIGGER[FUNC] TO CANCEL
TRIGGER OCCURRED AT
XX-XX-XX
[ENTER] TO CONTINUE
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Clear Trigger
Use the Clear Triggeroption to erase the data that is being stored at the time the
trigger is activated. The only information retained will be the current information
from the vehicle.
To use Clear Trigger option:
1 From the Trigger/Snapshot menu, select Clear Trigger.
2 Press .
A Trigger Cleared message appears.
3 Press to return to the Trigger/Snapshot menu.
Print Snapshot
Use Print Snapshotto print the data that was stored in the Custom Data List
when Snapshot was activated. Each piece of Snapshot data is stored in a frame.
You select the number of frames you want to print. You access the Print
Snapshotoption from the Trigger/Snapshotmenu.
Note: You must set up a custom data list prior to printing Snapshot data. If you
have not set up a custom data list, you may encounter the following
message:
TRIGGER/SNAPSHOT
----Selections----
CLEAR TRIGGER
SNAPSHOT PRINTOUT
ONLY AVAILABLE FOR
CUSTOM DATA LIST
[ENTER] TO CONTINUE
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Refer to the Custom Data List section of the Multi-Protocol Utilities Manual
for details on setting up a custom data list. You may create a custom data
list to print Snapshot data before or after Snapshot data is captured. The
custom data list may also be altered and Snapshot data printed again.
Snapshot data will only be deleted when the Pro-Link/MPC is turned off
or when a new Snapshot request is activated.
To use the Print Shapshot option:
1 From the Trigger/Snapshot menu, select Print Snapshot.
2 Press .
The following screen appears:
Selecting the number of frames you want to print allows for the adjustment
of the data window to print.
3 Using the numeric keypad, enter the number of frames desired.
4 Press .
The following screen appears:
TRIGGER/SNAPSHOT
----Selections----
PRINT SNAPSHOT
ENTER TOTAL SNAPSHOT
FRAMES TO PRINT
100
ENTER MSECS PER
FRAME
500
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Pro-Link/MPC Allison Transmissions Users Manual 51
The time duration of each frame is in milliseconds (1000 milliseconds equals
1 second, 500 milliseconds equals second, etc.). Adjusting the number of
frames and the time or each frame gives the technician the capability to alter
the amount of data printed.
5 Using the numeric keypad, enter the number of milliseconds for each frame.
6 Press .
Snapshot prints five items at a time. If you have more than five items in a
Custom Data List, Snapshot prints five items and the starts over with the
next five items until all Custom Data List selections are printed. You will
receive a printed message.
7 To cancel printing, Press .
Reviewing Snapshot Data
Once the trigger has been activated, you can review the data captured by select-
ing a data list. This list is either a standard data list such as Diagnostics Codes
from the Diagnosticsmenu, or it could be a custom data list.
To review Snapshot data:
1 Select the data list you wish to review.
2 On the numeric keypad, press 7.
The MPC Infoscreen appears.
The time should reflect the time the trigger was activated. This indicates that
the Pro-Link/MPC is in Snapshot Review Mode. The flashing cursor should
be two vertical lines rather than the solid cursor normally seen.
3 Press 7 again to put the Pro-Link/MPC into Real-time Mode (all data
reviewed will be real time).
NOTE:
iFor detailed explanation of cursors, please refer to the keyboard section of
the Multi-Protocol Cartridge (MPC) Utilities Manual.
4 To view captured data, press the key.
You are returned to the data list you for review.
5 Use the and keys to select the parameter you want to view.
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Chapter 3 Using the WTEC Diagnostics Menu
6 Place the blinking cursor on the desired parameter.
7 To view changes to the information for that specific parameter during the data
capture time frame, hold in the red, side button located on the left side of the
Pro-Link/MPC and simultaneously press the or right key.
If you receive an empty message, you have exceeded the time frame of
data captured and must restart the Pro-Link/MPC.
8 If you wish to continue to review Snapshot data, restart the Pro-Link/MPC.
9 When prompted to start a new session, select NO.
The data captured during the Snapshot session will be restored for viewing.
IMPORTANT:
If the trigger is activated more than once during a session, only the lasttrigger event will be used as a time mark. Earlier triggers will not be
retained as a reference point.
10 Press to return to the Allison WTECmain menu.
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Pro-Link/MPC Allison Transmissions Users Manual 53
4
Using the WTECECU/EEPROMSetup Menu
uThe Setup Menu, page 54
uView Customer Modifiable Constants, page 57
uI/O Wires States, page 59
uI/O Assignments, page 59
uAutodetect INFO, page 60
This chapter provides detailed information on using the ECU/EEPROM Setup Menu.
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Chapter 4 Using the WTEC ECU/EEPROM Setup Menu
The Setup MenuThe ECU/EEPROM Setupmenu provides information on the transmission ECU.
The functions of this section of the application will vary based on the version of the
software you have. Not all functionality may be available in your system.
From the WTEC main menu, use the and keys to select ECU/
EEPROM Setup.
Press .
The ECU/EEPROM Setupmenu appears:
The following menu selections are available (depending on which version of the
software you have):
ECU Calibration
View CMCs
I/O Wire States
I/O Assignments
Autodetect Info
WTEC II
VERSION XX.XX
----Selections----
ECU/EEPROM SETUP
ECU/EEPROM SETUP
----Selections----
ECU Calibration
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ECU Calibration
To use the ECU Calibration option:
1 From the ECU/EEPROM Setupmenu, use the and keys to select
ECU Calibration.
2 Press .
A scrollable data list similar to the following appears:
3 Use the and keys to scroll through the parameter list.
ECU/EEPROM SETUP
----Selections----
ECU Calibration
CIN 08002RQ006N
SW Level P02
ECU S/N M-03166498
ECU P/N 29524775
ECU M/D 03-11-1996
HCN 6CCN D70
TRANS CONFIG
CONFIG AVAIL
CONFIG USED
TOOL S/N 11420
LAST S/N 11420
I/O PACKAGE #00114
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Chapter 4 Using the WTEC ECU/EEPROM Setup Menu
The following parameters may be viewed:
4 Press to return to the ECU/EEPROM Setupmenu.
Parameter Description
CIN Calibration Identification number (11 characters)
SW LEVEL Identifies the software level of the transmission ECU
ECU S/N Identifies ECU serial number (eight characters; an M, B,
or a 3 prior to the number indicates the ECU as a MAX
feature, a Basic, or a WTEC III unit)
ECU P/N Identifies ECU part number without a cover or shifter (up
to ten characters; ECUs manufactured prior to 09/92
may not display a part number)
ECU M/D ECU manufacture date
HCN Hardware compatibility number
CCN Calibration compatibility number
TRANS
CONFIG
Level of transmission detected TRANS ID
CONFIG AVAIL Level of TRANS ID in ECU Calibration
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Pro-Link/MPC Allison Transmissions Users Manual 57
View Customer Modifiable ConstantsYou use the View CMCsoption to view Customer Modifiable Constants (CMCs)
for the selected I/O Package.
The calibration of the transmissions electronic control unit (ECU) is programmed
with one of six possible I/O function packages. The I/O Packages are based on
vehicle use, and contain the appropriate I/O functions and the appropriate settings
for the Customer Modifiable Constants (CMCs) for the stated use of the vehicle.
CMCs vary by I/O Package.
The Pro-Link/MPC will only display those I/O functions and CMCs that are
enabled by the current ECU programming. Not all of the CMCs in the following list
are available in your specific package.
Customer Modifiable Constant
D1 Select Position (Primary) Eng Brake Preselect Shift
Position
D1 Select Position (Secondary) Maximum Output Speed Auto-
matic Neutral
Maximum Engine Speed for
PTO Engagement
Maximum Output Speed Low
Axle Select
Maximum Engine Speed for
PTO Operation
Range Indicator Low Gear
Maximum Output Speed for
PTO Engagement
Range Indicator First Gear
Maximum Output Speed for
PTO Operation
Range Indicator Second Gear
Range Indicator Third Gear Override Engine Coolant Source
Autodetect
Range Indicator Fourth Gear Override Oil Level Sensor Auto
Detect
Range Indicator Fifth Gear Override Retarder Autodetect
Range Indicator Sixth Gear Eng Coolant Temp To StartRetarder Capacity Reduction
Range Indicator Neutral Gear Eng Coolant Temp To Start Pre-
select Shifts
Range Indicator Reverse Gear Eng Brake Preselect Shift Sched
Select
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Chapter 4 Using the WTEC ECU/EEPROM Setup Menu
To view CMCs:
1 From the ECU/EEPROM Setupmenu, use the and keys to select
View CMCs.
2 Press .
Speed to Turn On Output Speed
Interlock
Flash If Hot Oil - Retarder
Capacity Reduction
Speed to Turn Off Output Speed
Interlock
Flash If Hot Oil - Preselected
Shifts
Eng Speed to Turn On PTO
Overspeed Ind
Flash if Hot Coolant - Retarder
Capacity Reduction
Eng SPD to Turn Off PTO Over-
speed Ind
Flash if Hot Coolant - Reselected
Shifts
Eng Speed to Turn On Eng
Overspeed Ind
Retarder Capacity Reduction-
Hot Coolant
Eng Speed to Turn Off Eng
Overspeed Ind
Override Throttle Source Auto
Detect
ECU/EEPROM SETUP
----Selections----
VIEW CMCs
Customer Modifiable Constant
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Pro-Link/MPC Allison Transmissions Users Manual 59
The following is a representative screen, displaying the first CMC for the
current I/O Package:
3 Use the and keys to scroll through the list of available CMCs.
4 When you are finished viewing CMCs, press to return to the ECU/EEPROM Setupmenu.
I/O Wires States
The I/O Wire Statesfunction provides you with the capability to view the I/O wires
that are enabled.
1 From the ECU/EEPROM Setupmenu, select I/O Wire Statesand press.
The first I/O Wire is displayed. The ON/OFF indicator on the right-hand sideof the Pro-Link/MPC display indicates the status of the wire.
2 Use the and keys to scroll through the wire status display.
3 To return to the ECU/EEPROM Setupmenu, press .
I/O Assignments
TheI/O Assignments function displays the enabled/disabled status of the input
and output wire assignment.
1 From the ECU/EEPROM Setupmenu, select I/O Assignmentsand press.
2 Use the and keys to scroll through the wire I/O assignments list.
3 To return to the ECU/EEPROM Setupmenu, press .
RANGE INDICATOR
SECOND GEAR
NO
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Chapter 4 Using the WTEC ECU/EEPROM Setup Menu
Autodetect INFOThe Autodetect INFOfunction displays parameters that are configured for auto-
matic detection.
1 From the ECU/EEPROM Setupmenu, select Autodetect INFOand press.
2 Use the and keys to scroll through the parameter list.
3 A screen similar to the following is displayed:
The following table shows the Allison response to the Throttle Source Avail-
able Signal and the corresponding Autodetect response to the type of
throttle source detected:
The following table shows the Allison response to the Engine Coolant Avail-
able Signal, and the corresponding Autodetect response to the type of
engine coolant source detected:
OIL LEVEL AVAIL NO
RETARD AVAIL NOENG COOL SRC ANALOG
ANALOG COOL AVAIL YES
Allison Response Autodetect Response
Analog (ANALG THR AVAIL) Analog (YES or NO)
J-1587 (J1587 THR AVAIL) J-1587 (YES or NO)
J-1939 (J1939 THR AVAIL) J-1939 (YES or NO)
Allison Response Autodetect Response
Analog (ANALG COOL AVAIL) Analog (YES or NO)
J-1587 (J1587 COOL AVAIL) J-1587 (YES or NO)
J-1939 (J1939 COOL AVAIL) J-1939 (YES or NO)
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5
Using the WTECPrintout Option
uUsing the Printout Option, page 62
This chapter provides a quick overview of the Printout option available with AllisonWorld Transmissions (WTEC). You access the Printout option from the WTEC main menu.
For information on the WTEC main menu, refer to Chapter 2 of this manual.
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Chapter 5 Using the WTEC Printout Option
Using the Printout OptionThe Printoutoption provides you with the capability to obtain printed information
on several from several areas within the diagnostic program.
To use the Printout option:
1 From the WTEC main menu select Printout.
2 Press .
The following items (varies by diagnostic application) may be available to
print:
3 Use the and keys to scroll through the menu and select the items
you wish to print
4 Press .
WTEC II
Version X.XX
----Selections----
PRINTOUT
ECU Calibration Info Diagnostic Codes
I/O Wire States AutoDetect Info
Modifiable Constants I/O Assignments Shift Inhibits Custom Data List
Diagnostic Data MPC Info
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Pro-Link/MPC Allison Transmissions Users Manual 63
The following screen appears.
5 Do one of the following:
Wait for Pro-Link
/MPC to fulfill your print request.or
Press to cancel your print request.
When the Pro-Link/MPC is finished printing the item you selected for print-
ing, you will be returned to the Printout menu.
6 Press to return to the WTEC main menu.
NOTE:
i For detailed instructions on setting up your printer and troubleshootingprocedures (if you are unable to obtain the printout you requested), refer tothe Multi-Protocol Cartridge (MPC) Utilities Manual.
PRINTING
[FUNC] TO CANCEL
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Chapter 5 Using the WTEC Printout Option
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Pro-Link/MPC Allison Transmissions Users Manual 65
6
Using the AllisonCEC Application
uDiagnostic Data, page 66
uDiagnostic Codes, page 67
uSnapshot, page 73
This chapter provides information on the Allison CEC Transmission application,including a table listing and describing diagnostic codes.
NOTE:
i For information on connecting to Allison CEC Transmission and using the main menu,refer to Chapter 2 of this manual.
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Chapter 6 Using the Allison CEC Application
Diagnostic DataTo use the Diagnostic Data option:
1 Select DIAGNOSTIC Datafrom the menu using the and keys,
and press .
The diagnostic data list is displayed.
2 Use the and keys to scroll through the entire diagnostic data list.
Pressing the left arrow key causes the display to advance four lines.
Pressing the right arrow key causes the display to move backward four
lines. When you reach the end of the diagnostic data list, scrolling stops.
3 Press to return to the Allison CEC main menu.
NOTE:
i The electronic control unit (ECU) and the calibration PROM together areidentified by an eight-digit assembly number. Consult the appropriate Alli-son Transmission service literature to determine the specific part number
for your ECU and the specific part number for the PROM.
#ACTIVE CODES 5
IGN STATUS ON
SOL APPLY VOLT 13.5V
SUMP 109F
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Pro-Link/MPC Allison Transmissions Users Manual 67
Diagnostic CodesWhen you press the key on the Diagnostic Codesselection, the Pro-
Link/MPC displays the code number, along with a description of the code or
codes stored in the ECU.
The readout contains the name of the system or component that caused the code
to be set.
When viewing Diagnostic Codesin the normal Data List, the number on the left
is usually a more severe code than the code on the right side of the display. If both
memory locations have a code stored while in this function selection, the code on
the left will be displayed first. Also, if there are two codes stored in the ECU, the
arrows will appear on the bottom line of the code display screen.
NOTE:
i When certain operating conditions occur, a diagnostic code will be set inone of two memory locations of the ECU. Both memory locations are dis-played, and the code in the left position is usually more severe to
transmission operation. Consult the appropriate Allison Transmission trou-
bleshooting manual to determine system response for the various codes.
The following table provides a list of Allison CEC diagnostic codes and a descrip-
tion for each code:
ALLISON DIAG CODES
SPEED SENSOR
CODE 22
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Chapter 6 Using the Allison CEC Application
TABLE 1. Allison CEC Diagnostic Codes
Diagnostic Code Description
TPS Counts and % The throttle position sensor (TPS) monitors the
position of the fuel control lever on the engine. The
resulting voltage signal is converted to digital counts
by the ECU. It is possible for the readout to range from
244 counts at idle to nearly 0 counts at open throttle.
Idle counts greater than or equal to 233 or Wide Open
Throttle counts less than or equal to 14 counts will set
Fail Codes.
The throttle position count is converted by the ECU topercentage of throttle applied. It is possible for the
readout to range from 0 percent (closed) to 100
percent (fully open).
Range SEL When the vehicle driver operates the shift selector in
the vehicle cab, the readout indicates the range
selected. Note that this is the range selected, not nec-
essarily the range the transmission actually attains.
The readouts include:
R - Reverse
F4 - 1st through 4th (Drive)
F3 - 1st through 3rd (Drive)
F2 - 1st through 2nd
F1 - 1st
R2 - Second reverse
N - Neutral
F6 - 1st through 6th (Drive)
F5 - 1st through 5th (Drive)
Also refer to Range ATT.
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Pro-Link/MPC Allison Transmissions Users Manual 69
Range ATT In response to the drivers request for a particular
range, the ECU issues commands for the transmis-
sion to shift. Due to operating conditions, the range
actually attained may or may not match the range
selected. The readouts include:
R2 - Second Reverse
R - Reverse
N - Neutral
1C - 1st converter
1L - 1st lockup
2C - 2nd converter
2L - 2nd lockup
3C - 3rd converter
3L - 3rd lockup
4C - 4th converter
5C - 5th converter
5L - 5th lockup
6C - 6th converter
6L - 6th lockupNote: In the diagnostic mode, the ECU data stream
update rate is approximately 1.25 seconds. If the
transmission is shifting rapidly, it is possible that the
transmission may pass through several attained
ranges more quickly than the readout can display
them. This is not a fault of either the ECU or the Pro-
Link9000. If a faster update of range attained infor-
mation is required, go to the Range Selected/Range
Attained section of this manual.
Range Shift RPM The readout displays the transmission output shaft
speed (rpm) when the transmission made its last
range upshift or downshift. Converter lockups areexcluded. Due to the slow update rate of the ECU, be
careful to match the displayed value with the proper
shift. If you are not certain, use the transmission
HOLD feature to inhibit unwanted shifts.
TABLE 1. Allison CEC Diagnostic Codes
Diagnostic Code Description
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Chapter 6 Using the Allison CEC Application
Lockup RPM The readout indicates the transmission output shaft
speed (rpm) when the last converter lock-up (engage
or disengage) occurred. When the converter is locked
up (i.e., engaged) it provides a direct mechanical link
from the engine through the converter. When the con-
verter is not locked (i.e., disengaged) the converter
pump and turbine are connected by hydraulic fluid
only. Lockup rpm is generally different at closed and
open throttle positions.
Output RPM A speed sensor is located on the rear cover of the
transmission to detect output shaft rpm. The readout
shows actual transmission output shaft speed in revo-
lutions per minute; the readout lower limit is 60 rpm.
Oil Temp A temperature sensor is located in the transmission
sump on MT(B) 600; V, HT(B); and C(L) (B)T 700
transmissions. It is located in the lock-up valve body
assembly on C(L) (B)T 5/6/9000 and DP8000 trans-
missions. High oil temperature may result from over
filling or cooling system problems. Low oil temperature
may result from cold weather conditions.
The readout provides both Fahrenheit (-60F to
350F) and Celsius (-51C to 177C).
FWD Press SW (MTB600 CLBT,V,HT700 only)
A pressure switch in the transmission detects if the
transmission has attained a forward range. The
readout is ON when there is forward pressure, and it is
OFF when there is no forward pressure. Because the
ECU need