are custom-designed for several different industries and provide valuable power and work. . . . TM History: Use the Allison DOC For PCService Tool to display the amount of transmission operation from the initial service indication until the service reset. . The service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations. . The Allison transmission 1000 model has a feature called limp mode, in which the transmission locks itself into third gear. . . . Shorts involve wire-to-wire or wire-to-ground contacts and moving the harnesses may eliminate the problem. . The technician should also have the mechanical aptitude required to connect pressure gauges or transducers to identified pressure ports used in the troubleshooting process. . . . . . . . . . . . . . . . . . . . . . . . . . . . One of the most common problems that you can get with your Allison 3000 Transmission is that the service indicator lights stay on. . SYSTEM OVERVIEW . . . . . N1 P. INPUT/OUTPUT FUNCTIONS . . . . . . . Use this manual as an aid to troubleshooting the Allison 4th Generation Controls. . . . . . . . BEGINNING THE TROUBLESHOOTING PROCESS, 3-7. DIAGNOSTIC TROUBLE CODE LIST AND DESCRIPTION, 6-6. . Allison DOC For PCService Tool V7.x.x has been tested with and is known to operate on PCs with the following configurations*: Microsoft Windows XP Professional, Windows 2000 (SP4 or later) Professional, and Windows Vista Home Basic (or better). Even when operation is restricted, the vehicle can be operated to reach a service assistance location. . . . NOTE: Please refer to Paragraph 35 to begin the troubleshooting process. . . . . . . Allison DOC For PCService Tool shows PS2 EXHAUSTED. . . . . . . . . The WARNINGS, CAUTIONS, and NOTES in this manual apply only to the Allison transmission and not to other vehicle systems which may interact with the transmission. . Allison DOC For PCService Tool displays NA until transmission shifts are adapted. . install a new TCM. . . Dry Air (can vary depending on humidity) 346 m/s. . . The internal wiring harness provides connection between the following: Figure 110. If during the first 20 starts the TCM recognizes an engine to be on its list of certified engines, it will lock to the SEM active state. . . . . . An OLS will be identified as present and the OLS autodetect logic will stop once it is detected during any single engine start. . . . . . . . . . . SCTI provides parts to any Allison customer or OEM and is responsible for warranty on these parts. Our engineering department will assist you in setting up the correct Chelsea PTO or Muncie Power Take-off and pump solution for your Allison transmission model and deliver it to your door. . . If it appears to functioning p[roperly, run the engine at 12001500 rpm with the transmission in N (Neutral). . . . . . . . . . Remember to do the following when testing for shorts and opens: Minimize movement of wiring harnesses when looking for shorts. . . . . . . . . . . . . Pressure Switch 2 (PS2), also known as the Filter Life Switch, is used to monitor the pressure difference between main pressure before the filter and lockup clutch pressure as a method to monitor the main filter for excessive filter restriction. This will also improve your vehicles overall functionality! . . . . . . . . . . Additional details for each of the four autodetectable features are given below. . . . . . . . . Repair parts for the external harnesses and external harness components must be obtained from St. Clair Technologies Inc. (SCTI). . . Allison DOC For PCService Tool displays from 100 percent down to minus () 100 percent. . The code display procedure will indicate the number of times the DTC has occurred. . . Figure 15. . . Remember that some problems may be temperature related. . Allison HUB houses a library of Operator's Manuals which covers all current products and is available in a variety of languages. . . . . . . This, is usually caused by a dragging C1 or C3 clutch or a failed turbine speed sensor. . . . . . . . . . Allison. The engine speed signal is generated by ribs on the shell of the torque converter pump. The root cause of a problem as well as the symptom must be corrected to be sure of trouble-free operation. . With the ignition ON and the engine OFF, shift between N D N D N R N, pausing briefly (less than 3 seconds) between shifts, to reset the value displayed on the shift selector to 99 percent. . . . . . . . . . . The trans with the PTO setup is a different factor order code. . . . . . . . . . . . . . For example, Code P0960, indicates an open in the pressure control solenoid circuit, wires 111 and 174. a. . . . . Suprman said: I have a few Allison transmissions. Do you know how to identify and deal with an issue that may arise with your Allison transmission? . . . . TCM DIAGNOSTIC PROCEDURE . . . . . . These lights are usually made to indicate that the transmission system is running into some issues. . . . . . . . . . Description of the 3000 and 4000 Product Families Allison 4TH Generation Electronic Control system. . . Be sure to review and observe any vehicle system information provided by the vehicle manufacturer and/or body builder at all times the Allison transmission is being serviced. . . . . . . . . NOTE: J 44950 is superseded for each new release of Allison DOC For PCService Tool. . . 8 o'clock position: 1.00 x engine speed. . . . . . . . . New fluid is displayed as 99 percent. See Figure 1. . . . . . If you find yourself stuck in third gear with this model of transmission, its probably time to, Allison transmissions built in the mid-2000s had a recall issued for their TCM module. . . . . approximately 10 percent or the running clearance exceeds a maximum value, which may indicate a non-wear-related issue. . . . Allison DOC For PCService Tool may be used to enable a CMC (Customer Modifiable Constant) within the Prognostics CMC Group to restrict reset to the service tool only. . . . . Learn what might be happening and how to fix it here. NOTE: All Allison 4th Generation Controls TCMs are designed to be isolated from the vehicle chassis ground. . . . 888 9-4-GEARS | 888 944-3277 . . . . . . . . Oil Level Sensor (OLS) . . . Once a confidence flag is set, that source is used as the source for the throttle signal. . . . . . . . . . 2023 Copeland Allison Transmissions . . . . . . . . . . . . . If your transmission is installed in an older vehicle, check the vacuum lines and other parts connected to the transmission. . . . Program the PCM for PTO function, and it's a done deal. . Source: www . . The turbine speed sensor on the 4000 Product Family transmission is located on the outside of the main housing. . . . . . . . . . . . . . iii TRADEMARKS USED IN THIS MANUAL . . If the complaint does not return, leave the original TCM installed. . 56 B. . . . . . . . . IMPORTANT INFORMATION IN THE TROUBLESHOOTING PROCESS. . . . Three speed sensorsengine speed, turbine speed, and output speedprovide information to the TCM. . . . Clear any DTCs that may be present and test drive the vehicle to confirm the repair. Additional information may be published from time to time in Service Information Letters (SIL) and will be included in future revisions of this and other manuals. . Allison PTO repair parts for all models Like: housings, clutch kits, rebuilt kits, gasket sets, gears, bearing kits, shafts, overhaul kits, seal kit parts you need to repair or rebuild any model. . . . If temperatures do not decrease, reduce the engine rpm. . . . . The OLS senses transmission fluid level by electronically measuring the buoyancy forces on the float. . . . . . . Some procedures require using specially designed tools. Repeated or premature failure may be a sign of an incorrect application. . . If an OLS is known to be present, but has not been detected, troubleshooting the OLS circuit is required. . The Prognostics Package includes the following functions: Use the Allison DOC For PCService Tool to review the current status of any of these functions and a history of indicator resets. . . Clutch-apply pressure against the lands of the latch valves hold the latch valves in place or in a normally closed valve allows the fluid to simply flow through the valves. . . . Houston, Tx 77040, Phone 713.466.9838 . . Harness has been chafed and one or more wires are. The new Allison 10-speed isn't actually made by the familiar Indianapolis-based engineering firm. If the engine is not supported, the TCM will lock to a non-SEM state. . . . . . . . . . Then, mount the PTO to the adapter with the correct gasket which you set aside. . . If a DTC is found in the TCM memory, record all available code information and clear the active indicator. . . Seek service assistance as soon as possible. . USA 3368 Posts. . . . . . . . . NOTE: Transmission shifts will now be in the unadaptive (base) state, so it will be necessary to drive the vehicle to allow shift to converge. Do troubleshooting at the temperature level where the problem occurs. . . . The microcomputer is an independent controller and is referred to as a Transmission Control Module (TCM). . . . . . . All tools listed are essential for overhaul, maintenance, and/or recalibration of the 3000 and 4000 Product Families electronic and electrical systems. Do troubleshooting at the temperature level where the problem occurs. . Autodetect is active on the first 25 engine starts and, in the case of throttle source detection logic, may continue past 25 ignition cycles until a valid source is determined (details follow in A through D below). Typical 4th Generation Electronic Controls External Wiring Harnesses. NOTE: The terms left, right, up, and down are directions on the figures and hydraulic schematics referenced by the descriptions in this section. . . . . However, you may actually be experiencing a failsafe instead. . . . . . Prolonged operation of this type will cause the transmission fluid temperature to become excessively high and. Contact your Allison Transmission represen-tative if you do not have access to the Allison Transmission Extranet. . . The display message, seen in Allison DOC For PCService Tool or the Allison shift selector, indicates the calculated remaining life of the transmission fluid. Start the truck engine (with PTO and transmission in neutral) for only a few seconds and listen for any unusual noises. . . . . . . . . . . . * Some transmissions used in oil field service default to neutral, 41. . IMPORTANT INFORMATION IN THE TROUBLESHOOTING PROCESS, 3-5. . . . If the gears do not mesh at installation, the wrong PTO has been installed." Don't assume that a PTO intended for a specific purpose will suffice for another. But things may go wrong rather unexpectedly. . . . . . . . . . . Whenever a TID level change is to be made, the new TID level calibration will be added to the PROM Calibration Configurator System (PCCS) before the change (s) is (are) made in production to the transmissions. The service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations. . . . . . iv, 11. Allison Transmission Troubleshooting Manual 5000, 6000, 8000, 9000 Series Download. Because of the time lag involved with writing and printing processes, the transmission TCM may report a code that has not yet been added to this document. NOTE: Once TCM Autoselect locks, the only way to reactivate is to perform a reset procedure (refer to Paragraph 38). . . . . . Display the Oil Life Monitor information and press and hold the MODE button of the Allison shift selector for 10 seconds. . . Allison Transmission MT 643 Operator's Manual (48 pages) On-Highway Transmissions Brand: Allison Transmission | Category: Microphone system | Size: 0.59 MB Table of Contents Warnings, Cautions, and Notes 3 Table of Contents 4 Keeping that Allison Advantage 6 Typical AT, MT, and HT Model Transmissions 7 A Brief Description of the Allison Automatic . . . . . . . . . . 13 13. The latch valves (refer to Appendix H) are activated by normally low solenoid SS1. Autoselect is deactivated following the first 20 engine starts where engine and transmission communication are present. . Allison DOC For PCService Tool displays clutch condition as OK or NOT OK for each clutch, C1 through C5. . . . . . . . . . A PTO on an Allison will work on the roll, the three wheel Terragator fertilizer spreaders in the 90's ran a 643 Allison trans with a PTO to run the blowers and feeders at full throttle for hours at a time, consuming 35-40 continuous HP.
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