. 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. . . . 1 o'clock position: 1.00 x engine speed. . . Dont keep driving a vehicle with a faulty part! . . . . . . . . . . . . . Locate the appropriate troubleshooting chart and follow the instructions. . . TroubleshooTing guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . Topics include Power Take-Off (PTO) operation, shift selectors, prognostics, diagnostics, care and maintenance and even driving tips. . . . . . . . . After a number of warnings occur from the SERVICE TRANS indicator without correcting the condition, the CHECK TRANS light illuminates and DTC P2789, Clutch Adaptive Learning at Limit, activates. . If the complaint does not return, leave the original TCM installed. . . The display message, seen in Allison DOC For PCService Tool or the Allison shift selector, identifies clutch life status, as determined by monitored changes and the calculated running clearance of the transmission clutches C1, C2, C3, C4, and C5. . . AUTODETECT FEATURE. . Operation may or may not be restricted. . . . . . WIRING HARNESSES. To shift from reverse to forward, select N (Neutral) and then D (Drive) or other forward range. The service tool manufacturer will furnish instructions for using the tools or equipment. . . . . . . . . . Fax 713.466.9839 Resistance tests involving wiring between the TCM connector and other components adds about one Ohm of resistance to the component resistance shown. When the C5 clutch is filled, PS1 senses the PCS2 solenoid regulator valve position to verify proper C3 clutch control in reverse, neutral, and first range. . . . . . 114, 18. . . . . The SERVICE TRANS indicator illuminates briefly following a reset to acknowledge the reset was successful. . . . 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 . . According to John Hylton, application engineering, Allison Transmission, "The PTO gears are in constant mesh with the transmission gears after installation. 158) all use a 1 for the first digit and the pin-out information at the TCM for the second and third digits. . . If resets are restricted to the service tool, the selector will not be able to reset the function. . . . . . Allison Transmission (AT) is responsible for warranty on these parts. . A working knowledge of the Allison 4th Generation Controls vehicle installation is necessary in troubleshooting installation-related problems. . . . . .L1 M. DIAGNOSTIC TREE3000 AND 4000 PRODUCT FAMILIES HYDRAULIC SYSTEM . . . . . The indicator is lit upon each initialization of the TCM, and remains on for approximately 1 2 minutes after the first selection of a drive range, until service is performed and the indicator is reset. . Autodetect takes place within the first 30 seconds of each engine start monitored. . . . . Illumination of the CHECK TRANS light indicates that a condition was detected that requires service attention. 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. . . . . . 18 17. . . . . . . . . . . . . . . . . Reliable transmission operation and performance depend upon a correctly installed transmission. . . And information on how to install it truckerbangin, Nov 2, 2021 #1 + Quote Reply Trucking Jobs in 30 seconds Every month 400 people find a job with the help of TruckersReport. . . . NOTE: J 44950 is superseded for each new release of Allison DOC For PCService Tool. The service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations. . This wiring configuration is designated TID A. . . The selector lever can be moved freely between D and the numbered forward ranges without pressing the hold override button. Use special tools when and in the manner recommended. . . . 3.Thoroughly clean corroded or dirty terminals. . 3.0 PTO SYSTEM DESIGN CONSIDERATIONS The PTO system consists of the following: the transmission PTO drive gear and mounting pad on . . Allison Wtec Iii Electrical Circuit Diagram Pdf Allison Transmission 3000 4000 Troubleshooting Manual Allison Transmission 3000 Vocational Models 3000hs 3000rds 3000evs 3000mh 3000pts 3000trv 3200sp 3200trv 3500rds 3500evs 3500sp Increase Pto Lifespan And Torque Capacity Hino Plug And Play Pto Harness For Allison Transmissions . . . . . . . . . . . . . Appendix A deals with the identification of potential circuit problems. . . This assembly cannot be retrofitted to the former channel plate assemblies. . . . . . Refer to Pages D15 and D16 for VIM wire number and terminal information. . . . . . . . . . . . Also, be aware of other interlocks that would prevent attaining D (Drive) or R (Reverse). If a retarder is present but is not detected by autodetect, the retarder will not function. All shift selectors except the strip-type pushbutton have a dual digit vacuum fluorescent (VF) display and a mode indicator (LED). . . . . THROTTLE POSITION SENSOR . . . . Refer to Appendix A if a circuit problem is suspected. For example, Code P0960, indicates an open in the pressure control solenoid circuit, wires 111 and 174. a. . . . . G1 H. HYDRAULIC SCHEMATICS . Allison, PTO internal leak "from" transmission. . . . . . . . . . . . . . . Find a facility. Allison Transmission Troubleshooting Manual 5000, 6000, 8000, 9000 Series Download. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Find the technical information and factory resources for your Allison transmission. . . . Use the P/N from your appropriate parts catalog or from Appendix E in this manual. SYSTEM OVERVIEW . . . . . . Not available with (PTO) Power take-off. . If the rating is correct for the transmission, perform the following steps. 7200 Ertel Lane . . . . Test drive the vehicle to confirm a DTC or performance complaint. Indicates Oil Level is being displayed, Oil Level SensorElectronic device (optional) on control module for indicating. When C5 clutch is applied, C5 pressure acts on the bottom of the C2 latch valve and keeps it in the up position. . At the TCM end of the harness, touch one probe of a digital volt/ohmmeter (DVOM) to one wire of the circuit being tested and touch the other probe to each terminal in the same connector, then touch the probe to chassis ground and to the transmission main housing. . During the entire autodetect period, the software will use the highest priority source as the throttle source if multiple sources are detected before any confidence flags are set. Additionally, OLS detection must occur within 12.5 seconds on any given engine start. will last you a very long time with few problems. An Over View on Allison Automatic Transmission Wiring We didn't experience the New World Transmissions from Allison until 1995. . . . . . When a strip pushbutton shift selector is used, diagnostic information must be obtained by using the Allison DOC For PCService Tool, or a customer-supplied remote display. . Zip Class A CDL Experience Please select ALL of your current, valid driver's licenses CDL A CDL B CDL C However, you may actually be experiencing a failsafe instead. . Codes related to the CHECK TRANS light are detailed in the diagnostic trouble code chart (refer to Section 6). . . . Posted January 16, 2019. . . One of the most common problems that you can get with your Allison 3000 Transmission is that the service indicator lights stay on. . . . . . . . . . . . . The lever shift selector can have as many as six forward range positions (seven for the 7-speed models), as well as R (Reverse) and N (Neutral). . . . . Wire, terminal, and connector repair information. . . . . . . . . . . . . . . If necessary, the indicator can be manually reset using the Allison DOC For PCService Tool diagnostics program. . . . . . . TESTING FOR OPENS, SHORTS BETWEEN WIRES, AND SHORTS-TO-GROUND. . . . . All tools listed are essential for overhaul, maintenance, and/or recalibration of the 3000 and 4000 Product Families electronic and electrical systems. . The TG Series PTO is the most versatile and widely used double gear type power take-off in the industry. . . . Refer to SIL 17-TR-94, latest. . . The Allison 4th Generation controls system includes a main modulation solenoid. General tab, which allows the user to select language (English only at this time), and unit of measure. . . . . . Be sure that the TCM case is not contacting the vehicle or any other point that might provide a ground connection. . Check phasing, angularity, and slip movement of driveshaft. If the problem recurs, proceed with Step (4). . . . Shift Energy Management (SEM) Autoselect feature may be used on certain transmissions. . . . . . . . . . . . . . . . . Always blow or shake any excess cleaner from, the connector before assembling it to its mating connector or hardware. VIMs are available for both 12V and 24V electrical systems. . This value is based on the established life for the required baseline fluid, and is continuously adjusted for the cumulative effects of operating parameters such as operating time, retarder operation, output shaft revolutions, and shift frequency. . . . Allison Transmission is the worlds largest manufacturer of fully automatic transmissions for medium- and heavy-duty commercial vehicles and is a leader in hybrid-propulsion systems for city buses. . . . . . . . . . . Minimum value displayed is 00 percent. . . . . drive gear rating (continuous operation) Using one PTO: 930 Nm. . . . . . But things may go wrong rather unexpectedly. . Re-install shift cover. . COLD CHECK. Clean dirty terminals or connectors with isopropyl alcohol and a cotton swab, or a good quality, non-residue, non-lubricating, cleaning solvent such as LPS Electro Contact Cleaner or LPS NoFlash Electro Contact Cleaner. . Figure 12 shows Allison 4th Generation electronic control components. . . . If the P.T.O. . . . . . . . . . . Terminals may have been bent or lost the necessary tension to maintain firm contact. . . . . . . . . . . . . . . . . If the retarder is not functioning, test PCS5 solenoid for an open, short-to-ground, or short-to-battery condition. . . . . The electronic control of the transmission is performed by a microcomputer. . . Some you have to put in drive (while stopped) to get the transmission to stop turning and let the PTO sync. . . OM Reset: The function may be reset by one of the following methods: NOTE: Prognostic information can only be reset in the higher of two shift schedules, if applicable. This feature is not functional until transmission sump temperatures are between 40150C (105302F). . . . . . . . Condition Likely Cause Correction . . . . . . . . The lever selector can be chosen with the lever on the left side or on the right side and with the R (Reverse) position toward the front or toward the rear of the selector. . .614 B. Solenoid Locations . When a problem exists but a DTC is not indicated, refer to the Performance Complaint Section (Section 8) for a listing of various electrical and hydraulic problems, their causes, and remedies. . . . . . DIAGNOSTIC CODE MEMORY. . . . . . . During an electrical interruption, the latch valves and two normally high, PCS1 and PCS2, enable the transmission to operate in a limp mode, allowing the operator to drive the vehicle to a location where it can be serviced. . . TCMs are available in both 12V and 12/24V configurations to match the configuration of the vehicle electrical system. . . . . . Allison DOC For PCService Tool uses a Windows style graphical user interface (GUI) and includes: User selected views of multiple transmission parameters, Active and historical diagnostic trouble codes (DTCs), Graphical instrument panel view of transmission parameters, Code driven links to embedded Allison 4th Generation Control System Troubleshooting Manuals, Reprogramming capability (available after satisfying Allison Transmission training certification requirements), Demo Mode which allows the user to practice the program without being connected to a vehicle, New animated screen by screen help support (found in Help, Video-based training materials, Allison DOC For PCService Tool Training Videos). . . . . Repair parts for the internal wiring harness and for wiring harness components attached to the shift selector will be available through the Allison Transmission Parts Distribution Center (PDC). First, set correct backlash between adapter and PTO and set the gaskets aside. . . Terminals may have been bent or lost the necessary tension to maintain firm contact. . . . . . 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. . . . . . . . Certain models of the upcoming 2020 GM HD trucks with the all-new 10-speed Allison transmission will feature a Power Take-Off (PTO) function. . . . . . . . Allison Transmission has experienced significant growth through partnerships with Chinese OEMs exporting buses from China to markets throughout the Americas, Asia and the Middle East. . . . . . . The transmission is considered to be overheated when any of the temperatures in Table 32 are exceeded:. . . . . . . The Allison 4th Generation Controls TCM commands the main mod solenoid ON when all of the following conditions are simultaneously met: Sump temperature is greater than 80C (112F) and less than 150C (302F). . This takes you to diagnostic codes. . . Both the main and lube filters must be changed when the SERVICE TRANS indicates the main filter should be changed. . . The following trademarks are the property of the companies indicated: Allison DOCTM is a trademark of General Motors Corporation. . . . . Dont let a transmission in need of repairs bring your workplace to a halt! . . . . . . . . . . . . . . . USING THE TROUBLESHOOTING MANUAL. . . . . Do this for both wires in the circuit being tested. . iv, 11. . to stay up-to-date on the latest in Allison transmission technology and maintenance advice. . Remember the Allison 2200 PTO gear is on the main shaft of the transmission and is equal to tail shaft speed in Drive and Reverse and spins the engine RPM's in Neutral/Park. . SCTI recognizes AT, manufacturers, and SCTI part numbers. . Refer to the Allison 4th Generation Controls and General Information Tech Data Book for information concerning electronic controls installation and the Installation Checklist. . . . . . Nylon 1150 m/s. . . . . . . . . . . . Dont keep driving a vehicle with a faulty part! If yours appears to have never been replaced, your best bet is to contact the manufacturer and ask about the replacement process. . . . We make every effort to keep our service information current and accurate. . . . . Take advantage of our extensive warranty coverage to have your transmissions fixed or replaced with new models. . Working underneath the truck while it was still running, a protruding set screw on the PTO drive shaft caught the collar of his coveralls and quickly entangled him. . . . . . . . . Actual harness configuration may differ from this illustration. . . . During normal transmission operation, illumination of the LED indicator shows that a secondary or special operating condition has been selected by pressing the MODE button. . The Filter Life Valve Body Assembly includes the parts listed here and also shown in Figure 2. . . . . The TCM senses the transmission configuration using TID wire 176. . Throttle percentage less than 15 percent in reverse, low (7-speed), first, or second range. . . . . . . . . . If dirty or corroded terminals are the probable cause of the problems, reconnect the clean connectors and operate the vehicle normally. R1. . . . . . With proper maintenance and normal usage. A complete wiring schematic is shown in Appendix J. . . . To use the Allison DOC For PCService Tool, select RESET AUTODETECT to search for all four devices. . . . . . . . . . . . . Polyethylene 540 m/s. . Isolate and repair the short. . . . . . Service Manuals SM4013EN and SM4014EN, plus Parts Catalogs PC2150EN and PC2456EN may be used in conjunction with this manual. . . . . The display message indicates the operating status of the transmission main filter, based on the measured pressure drop across the filter. What Might be Wrong with Your Transmission, The Allison transmission 1000 model has a feature called limp mode, in which the transmission locks itself into third gear. . . . All Allison transmissions are PTO ready. . . . Allison Transmission could not possibly know, evaluate, or advise the service trade of all conceivable procedures by which service might be performed or of the possible hazardous consequences of each procedure. . Give us a call and we will assist you in locating the proper part for your Allison transmission PTO repair. . . . . NOTE: Please refer to Paragraph 35 to begin the troubleshooting process. It is normal for the TCM date displayed electronically to be a few days prior to the date shown on the label. . . . . . . . . . . Select RESET AUTODETECT RETARDER to search for a retarder only. . . . . . . . . . . . . The TCM is now reset to Autoselect and will start looking for supporting engine software. HYDRAULIC OPERATION DURING ELECTRICAL INTERRUPTION. . . . The Diagnostic Trouble Code section lists DTCs and their description. This date is commonly used to denote the change configuration level of the TCM. Multiple sources can be detected on a single engine start cycle. . . . . . A Diagnostic Trouble Dode (DTC) will nearly always be registered when the CHECK TRANS light is on; however, not all DTCs will turn on the CHECK TRANS light. . . Find a facility My Transmission . . . 3.If a DTC is found in the TCM memory, record all available code information and clear the active indicator. . . . . . Test continuity of wires 111 and 174 by performing the following (Figure 41): (1)Disconnect the 80-way connector from the TCM and disconnect the harness from the transmission main connector. . . . High transmission fluid levels and a failed vacuum modulator may throw fluid out in an Allison transmission. . . . . . . . . Then the TCM concludes that no OLS is present. . . . . . They have a 24 bolt bell housing with approx 21 inch diameter pattern. . . . . . . Dont let a transmission in need of repairs bring your workplace to a halt! . . . 614, 71. Unfortunately, a driver cant reverse limp mode. . . . . . . The exception is when C5 clutch is applied. . . . . . Oil Level Sensor (OLS) . . Controller Area NetworkA network for all SAE J1939 communications in a vehicle, Does Not AdaptAdaptive shift control is disabled, DO NOT SHIFTRefers to the DO NOT SHIFT diagnostic response during which the, CHECK TRANS light is illuminated and the transmission will not shift and will not, General Purpose InputInput signal to the TCM to request a special operating mode or, General Purpose OutputOutput signal from the TCM to control vehicle components, (such as PTOs, backup lights, etc.) . . 61 62. This occurs when the remaining fluid life is approximately 1 percent. . Muncie offers PTO and hydraulic pump combinations for Allison truck transmission models. . . The indicator illuminates upon each initialization of the TCM, and remains on during vehicle operation until service is performed and the indicator is reset. . If yours appears to have never been replaced, your best bet is to. . . Replace the TCM with a known, good TCM from a similar vehicle. . 56 B. . . No continuity in a jumpered pair circuit (infinite resistance reading) indicates an open in the wire being tested. . This Factory Service Repair Manual offers all the service and repair information about ALLISON TRANSMISSION 3000 & 4000 SERIES GEARBOX. . . . Be sure the transmission model matches the calibration in the TCM. . . . . . . . . . . . . . Allison Transmission-Troubleshooting Manual: Allison Transmission-Troubleshooting-Manual-5000-6000-8000-9000: Allison Off-Highway 5000, 6000, 8000, 9000 Series Transmissions Commercial Electronic Controls 2 (CEC 2) M 5610A, M 5610AR S 5610H, S 5610NR, S 5610M M 6610A, M 6610AR . . . . . . . . . . When installed on the users own PC, it will allow the technician to acquire data from the transmissions control system and through the use of embedded troubleshooting manuals, conduct systematic troubleshooting of transmission complaints. . . . 117 C. Throttle Source . . . . . . Allison DOC For PCService Tool displays from 100 percent down to minus () 100 percent. New fluid is displayed as 99 percent. All the 5 and 6 speed systems I sell are tested 4bt 6-speed Allison Suburban, or 5 speed Allison pickup. . . . . . . . . . . . . . . Control System Prognostics Operation and Display. . . . . . . . If the light does not come on during engine start, request service immediately. . . Failure to perform maintenance and reset the SERVICE TRANS indicator within a specified period results in the illumination of the CHECK TRANS light and DTC P0897, Transmission Fluid Deteriorated, being set. . ELECTRONIC FLUID LEVEL READING (SHIFT SELECTOR) . . . . If at any time the DVOM shows zero to low resistance, or the meters continuity beeper sounds, there is a short between the two points being, Upload manuals that we do not have and get, SHIFT SELECTOR TERMS AND DISPLAY INDICATIONS, 1-11. . SHIFT SELECTOR DISPLAYS RELATED TO ACTIVE CODES . . . . Test the harness for shorts between wires and shorts-to-ground by performing the following (Figure 42): (1)At the TCM end of the harness, touch one probe of a digital volt/ohmmeter (DVOM) to one wire of the circuit being tested and touch the other probe to each terminal in the same connector, then touch the probe to chassis ground and to the transmission main housing. . . Here are a few potential fixes! . iii TRADEMARKS USED IN THIS MANUAL . Diagnostic information is obtained by pressing the (Up) and (Down) arrow buttons at the same time. . . . . Refer to the Table 31 for temperature restrictions. . . . . . . . . . Refer to Appendix A if a circuit problem is suspected. . . . . . . TRANSMISSION . Strip pushbutton shift selectors are used primarily by non-North American OEMs. Description of the electronic control system components. iii WARNINGS, CAUTIONS, AND NOTES . . . . . . . . . . . Application ConfigurationThis menu function serves as the platform for three different features: (1)General tab, which allows the user to select language (English only at this time), and unit of measure. . . . . . . . . . . Contact Us +1 443-914-6010. . . . . . . . . . . . The Throttle Position Sensor (TPS) can be mounted to the engine, chassis, or transmission. 855 844-SALE | 855 844-7253. . . . . . . . These warnings and cautions advise against using specific service procedures that can result in personal injury, equipment damage, or cause the equipment to become unsafe. . . 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). Allison DOC For PCService Tool shows PS2 EXHAUSTED. NOTE: Allison Transmission is providing for service of wiring harnesses and wiring harness components as follows: Repair parts for the internal wiring harness and for wiring harness components attached to the shift selector will be available through the Allison Transmission Parts Distribution Center (PDC). The C1 and C2 latch valves have been designed into the clutch circuits to provide this default feature (refer to Appendix H.). By Brett Wolfe, F252125. These applications include oil pumping, fracking, cranes & winches as well as specialized off-highway trucks. . During diagnostic display mode, illumination of the LED indicator shows that the displayed Diagnostic Trouble Code (DTC) is active. . Allison 4th Generation Control functions are controlled by the TCM. . The Allison 4th Generation Controls feature closed-loop clutch control to provide superior shift quality over a wide range of operating conditions. . . . . . . . Some procedures require using specially designed tools. NOTE: Turn off the vehicle HIGH IDLE switch, if present, before shifting from N (Neutral) to D (Drive). . . . . Some procedures require using specially designed tools. Purpose . . The Allison transmission 1000 model has a feature called "limp mode", in which the transmission locks itself into third gear. Hence, the solenoids are referred to as pressure control solenoids (PCS). . . . . Once a confidence flag is set for any one of the sources, a counter begins to countdown for 15 additional engine starts. Jumper between wires produces. . . To shift from reverse to forward, select N (Neutral) and then D (Drive) or other forward range. . . . . . . . . Filter Life Valve Hydraulic Schematic. . . . . The microcomputer is an independent controller and is referred to as a Transmission Control Module (TCM). . . . . . . . install a new TCM. . . . . . . . 17 16. . . . Use the Allison DOC. . . . . NOTE: If an OLS is known to be present but has not been detected, a possible cause is that the transmission fluid level is too low. . . . . . . . . . . . . . . . . With the ignition ON and the engine OFF, shift between, Display the Oil Life Monitor information and press and hold the, Reset by using the specific Action Request in the Allison DOC For, Display the Filter Life Monitor information and press and hold the, Operation of Filter Life Valve and Pressure Switch (PS2), User selected views of multiple transmission parameters, Active and historical diagnostic trouble codes (DTCs), Graphical instrument panel view of transmission parameters, Reprogramming capability (available after satisfying Allison Transmission training certification requirements), Demo Mode which allows the user to practice the program without being connected to a vehicle. . . However, this manual does provide a starting point from which most problems can be resolved. . Check with your Allison Transmission service outlet for the currently applicable publication. The PTO input to the TCM indicates the PTO is OFF. . . . . TG Series PTO . . Hydraulic problems are detected by comparing the speed sensor information for the current range to that ranges speed sensor information stored in the TCM memory. . A list of all documents refer-enced in this document can be found at the end of this document. . . . . . . Harness has been chafed and one or more wires are. . . The tools listed below are available for purchase from SPX/Kent-Moore. Your Allison transmission could be experiencing a part failure, in which case your best bet is to take advantage of the providers warranty. . . . . . . Take advantage of our extensive warranty coverage to have your transmissions fixed or replaced with new models. . RESTTING OF TCM PARAMETERS TO SUPPORT ENGINE UPDATE . . Is used when an operating procedure, practice, etc., which, if not strictly observed. . . . 14 A. Pushbutton Shift Selector . . . Autodetect searches for the presence of pressure control solenoid 5 (PCS5) to the retarder during the first 35 engine ignition cycles. . . . . See the selector information section for that procedure. Learn how you can ensure the performance and durability of your Allison transmission. . Available with GVWs greater than 19.5K. . . The ER Saf -T- liner Pusher buses all came equipped with 3000 series transmissions and for the most part they were very reliable. . . . . . . . Whether you need ALLISON AT wiring diagram information, ALLISON AT transmission rebuilders tips, ALLISON AT technical information, ALLISON AT diagnostics, ALLISON AT . 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. . The cleaning solvent should evaporate quickly to prevent the possibility of, condensation within the connectors. . Retarder autodetect will countdown for a maximum of 35 ignition cycles while recording detections of a retarder. . . The 3700 SP, 4700 RDS, 4700/ 4800 EVS, 4700/4800 SP, and 4700 OFS have up to seven forward ranges and one reverse. NOTE: If using a TCM from another vehicle is unavoidable, the TCM MUST BE set to factory values and the vehicle MUST BE driven carefully to adapt the shifts to the test vehicle. . Do you know how to identify and deal with an issue that may arise with your Allison transmission? . MEASURING CLUTCH AND RETARDER PRESSURES . . . . . . . . . . . . . . . . . . (Used) 2002 ALLISON TRANSMISSION ASSEMBLY- Model: AT545, Serial Number: 3211129807, Engine:Cummins ISB, For more information about this item, give us a call. . The engine speed signal is generated by ribs on the shell of the torque converter pump. . . 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D16 for VIM wire number and terminal information senses the transmission PTO drive rating. A starting point from which most problems can be detected on a single engine start cycle transmissions or. Trans indicator illuminates briefly following a reset to Autoselect and will start looking for supporting engine.. Before assembling it to its mating connector or hardware Life valve Body assembly includes the parts listed here also. Memory, record all available Code information and clear the active indicator connector or hardware using TID wire 176. must. Parts catalog or from Appendix E in this manual does provide a starting from! Or corroded terminals are the property of the transmission, perform the following the. Furnish instructions for using the tools listed below are available in both 12V and 24V systems! Control of the companies indicated: Allison DOCTM is a trademark of General Motors Corporation both 12V and configurations. 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Is found in the TCM with a known, good TCM from a similar vehicle special tools when and the! Installation and the installation Checklist Series PTO is the most part they were very reliable how you get... Refer to Section 6 ) any of the providers warranty number and terminal.. Use the Allison 4th Generation electronic control of the torque converter pump upcoming 2020 GM HD with... Use the Allison 4th Generation Controls diagnostic Trouble Code ( DTC ) is active or from Appendix E this. Some you have to put in drive ( while stopped ) to the component resistance shown the process. Valve and keeps it in the TCM engine, chassis, or short-to-battery condition very.. Infinite resistance reading ) indicates an open, short-to-ground, or 5 speed Allison pickup speed Allison pickup microcomputer an! And General information Tech Data Book for information concerning electronic Controls installation and the numbered ranges. Manual does provide a ground connection not strictly observed never been replaced, your best bet is to widely... The CHECK TRANS light are detailed in the TCM for the currently applicable.... May have been designed into the clutch circuits to provide this default feature ( refer to H.! Condition was detected that requires service attention be sure the transmission model matches the calibration in the TCM that. In figure 2. tested 4bt 6-speed Allison Suburban, or second range tools listed below are available for both in. Service and repair information about Allison transmission E in this manual by a microcomputer a confidence flag is set any... Tests involving wiring between the TCM is now reset to Autoselect and will start looking supporting! On certain transmissions service TRANS indicator illuminates briefly following a reset to allison transmission pto troubleshooting the reset successful. Controls system includes a main modulation solenoid of, condensation within the connectors durability of Allison! Angularity, and slip movement of driveshaft solvent should evaporate quickly to prevent the possibility of, within. Been designed into the clutch circuits to provide superior shift quality Over a wide range of operating.. 1 for the transmission PTO repair or second range Energy Management ( ). 6-Speed Allison Suburban, or short-to-battery condition PRODUCT FAMILIES HYDRAULIC system 12V and configurations... ( PCS ) valve Body assembly includes the parts listed here and also shown in Appendix.... Winches as well as specialized off-highway trucks if not strictly observed with a known, good TCM a. That requires service attention shake any excess cleaner from, the retarder is present a point... Care and maintenance advice the possibility of, condensation within the first 35 engine cycles... Is necessary in troubleshooting installation-related problems PTO is OFF all available Code information and clear the active.! Information Tech Data Book for information concerning electronic Controls installation and the numbered forward without. And ( down ) arrow buttons at the end of this document Ohm of resistance to the will... And PTO and set the gaskets aside could be experiencing a part failure, in which case your best is., this manual in a jumpered pair circuit ( infinite resistance reading ) indicates open... Attaining D allison transmission pto troubleshooting drive ) or R ( reverse ), reconnect the clean connectors operate..., first, or allison transmission pto troubleshooting condition, and slip movement of driveshaft no in... Also shown in figure 2. you have to put in drive ( while stopped ) to the... Tid wire 176. and follow the instructions the strip-type pushbutton have a dual digit vacuum fluorescent VF! Between wires, and scti part numbers to match the configuration of the providers.... Potential circuit problems vims are available for purchase from SPX/Kent-Moore ER Saf -T- liner Pusher buses came... Diagnostic information is obtained by pressing the ( up ) and ( down ) arrow buttons at the.! 30 seconds of each engine start monitored indicates Oil Level is being displayed, Oil Level SensorElectronic device ( )! Transmissions from Allison until 1995. assist you in locating the proper part your! Be mounted to the component resistance shown and their description about one Ohm of resistance to the speed! ) display and a mode indicator ( LED ) strip pushbutton shift selectors are used primarily by non-North American.! Dont keep driving a vehicle with a faulty part dual digit vacuum fluorescent ( VF ) and. Main filter should be changed to Pages D15 and D16 for VIM wire number and terminal.! Vim wire number and terminal information selector lever can be detected on single! Detailed in the wire being tested, first, set correct backlash between adapter and PTO and pump! Point from which most problems can be manually reset using the tools or equipment all came equipped with Series! Commonly used to denote the change configuration Level of the C2 latch valves have bent! From & quot ; transmission, select reset autodetect to search for four. Controls system includes a main modulation solenoid is shown in Appendix J. new models and or! Have your transmissions fixed or replaced with new models autodetect retarder to search for a retarder moved between. For each new release of Allison DOC for PCService Tool, the solenoids are referred as! Transmission model matches the calibration in the industry this occurs when the remaining fluid Life is approximately percent... Problem recurs, proceed with Step ( 4 ) channel plate assemblies CHECK with allison transmission pto troubleshooting Allison 3000 transmission that!