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Foreword
Safety information
Important safety notice
Warnings, cautions and notes
Trademarks used in this manual
Gear shift terms and gear shift display
General description
Gearbox
Transmission control module (TCM)
Gear selector
A. Push button shift
B. Lever type gear selector
Throttle position sensor
Speed sensors
Control module
Posting
A. Field wiring
B. Internal wiring
Vehicle interface module
Auto detect function
A. Retarder
B. Oil level sensor (OLS)
C. Throttle position signal source
D. Engine coolant temperature TRANSID (TID)
Definitions and abbreviations
Check trans indicator light (check transmission)
Allison Transmission diagnostic tool
Abbreviations
General information
General training required
Using the troubleshooting guide
System overview
Important information for troubleshooting
Start the troubleshooting process
TCM Diagnostic procedure
Reset TCM parameters to support engine information update
Reset TCM autoselect
Checking the wiring
Check for open circuits, short circuits between wires and short circuits to ground
Checking the transmission through connector for open circuits, wire-to-wire shorts, and short to ground
Oil level sensor
Introduction
Oil level display (gear selector)
A. Oil level reading procedure
Electronic oil level check (Allison DOCTM for PC – service tool)
A. Oil level reading procedure
Diagnostic trouble codes
Memory of diagnostic trouble codes
Read and reset DTC
System response after registration of diagnostic trouble codes
Gear shift display indications associated with active DTCs
Index and description of diagnostic trouble codes
Troubleshooting diagnostic trouble codes
A. Starting the troubleshooting process
B. Arrangement of solenoids
C. Diagram of diagnostic trouble codes
Input and output functions
Input functions
Output function
Troubleshooting process for performance complaints
Applications
A. Identifying potential wiring problems
B. Checking the clutch and retarder pressure
C. Solenoid and clutch table
D. Wire / connector table
E. Connector numbers, terminal numbers tool numbers and repair instructions
F. Throttle position sensor adjustment
G. Carrying out welding work on the vehicle / interface module for connecting diagnostic equipment
H. Hydraulic diagram
J. 3000 and 4000 series equipment wiring diagram
K. Solenoid resistance table
L. Electromagnetic interference from external sources
M. Diagnostic chart - 3000 and 4000 series gearbox hydraulics
N. ALLISON DOCTM for PC – service tool
P. Input and output functions
Q. Thermistor troubleshooting information
R. SAE J1939 data channel |
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