Second. Allison 4th Generation Control Mudules with Prognostics. . . 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. . 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. . The Allison 4th Generation Controls feature closed-loop clutch control to provide superior shift quality over a wide range of operating conditions. H1 J. . . . . . The cleaning solvent should evaporate quickly to prevent the possibility of, condensation within the connectors. . . . Web allison md 3060 wtec 2 has. . PTO requires minimum 65 PSI. . . . . The engine should never be operated for more than ten (10) seconds at full throttle, CAUTION: with the transmission in range and the output stalled. . . . The Diagnostic Trouble Code section lists DTCs and their description. 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). . . . Service Indicator Light On. . . . . . NOTE: Information concerning specific items is contained in the appendices located in the back of this manual. . . . . . . . . . . . . The TPS contains a pull actuation cable and a potentiometer. . 25 23. . . The strip pushbutton shift selector does not have a MODE button, diagnostic capability, or adjustable illumination. . . Wire, terminal, and connector repair information. . . . . . . 117 C. Throttle Source . . . . . . . . . . Whenever a transmission is overhauled, exchanged, or has undergone internal repairs, the TCM MUST. Also, many different styles and materials for harnesses are likely to be encountered. All you need is your PTO series number to get started. . . . . . . . Re-install shift cover. . . . BEGINNING THE TROUBLESHOOTING PROCESS, 3-7. .L1 M. DIAGNOSTIC TREE3000 AND 4000 PRODUCT FAMILIES HYDRAULIC SYSTEM . . If theres anything out of place, switch them back and try again to see if you can duplicate the problem. . . . Retarder autodetect will countdown for a maximum of 35 ignition cycles while recording detections of a retarder. . . . . . . . 73, SECTION 8. . . . . . . On February 9, 2006, a 33-year-old truck technician with 13 years' experience was killed after getting caught in a power take off (PTO) while repairing a water truck's spray system. . . . . . . . . No OLS diagnostics take place until the OLS is detected. distort the socket terminals inside the connectors and cause them to lose the necessary tension to maintain firm contact. . . . . . . . . . . . Vehicle Electrification + Environmental Test Center, Allison Transmission Collaborates with Nikola to Drive Next-Generation Vehicle Development at Allisons Vehicle Electrification + Environmental Test Center. . . . . . . . Cleaner, trapped in the connector can affect the connector seal. . . . . revision, for detailed information on the recommended cleaners. . . . . . . . The crates are all stamped with nsn 2520-01-257-3880. . Strip pushbutton shift selectors are used primarily by non-North American OEMs. . . . Do troubleshooting at the temperature level where the problem occurs. . . The Filter Life Valve is de-stroked off the return spring in this condition because lockup pressure is high enough to keep main pressure (before the filter) from stroking the valve. . . . . . . . the Allison DOC For PCService Tool to reset retarder autodetect or to manually select the presence of the retarder after the PCS5 circuit is repaired. . . We ship from the USA to . . Clean dirty terminals or connectors with isopropyl alcohol and a cotton swab, or a good quality. . . . . . . Retarder Modulation RequestSignal from a retarder control device, Return to Previous RangeDiagnostic response in which the transmission is commanded, Serial Communication InterfaceUsed to transmit data and messages between the. . . . . . was correctly specified and then failed prematurely, there are two likely causes: Throttle percentage less than 15 percent in reverse, low (7-speed), first, or second range. . . Replace PTO housing, gears. . . . . . . . . . . 53 A. Fluid Level Reading Procedure. On 7-speed models, SS2 latch valve takes the place of C5 on the bottom of the C2 latch valve. ABBREVIATIONS . . . . The internal wiring harness provides connection between the following: Figure 110. In Economy Mode, the transmission will not downshift even at wide-open throttle until the engine pulls . . . . . Allison HT740 shift problem Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts. . . . . . . . . . . Use the P/N from your appropriate parts catalog or from Appendix E in this manual. . . . . . Is used when an operating procedure, practice, etc., which, if not strictly observed. . If the complaint is confirmed. . Determine if DTCs have set by: Using the shift selector display (see Paragraph. . . Wiggle connectors, harnesses, and splices when looking for opens. . . . . . b.If the continuity test is good (02 Ohms resistance), remove the jumpers. MGU Transmission, Allison 10-Speed automatic with integrated Power Take-Off (PTO) . . . . . . . Total using two PTO's: 1595 Nm. . . Zip Class A CDL Experience Please select ALL of your current, valid driver's licenses CDL A CDL B CDL C . . . . The display message indicates the operating status of the transmission main filter, based on the measured pressure drop across the filter. . "), 3000 AND300040 PROANDUCT4000FAMILIESPRODUCTTROUBLESHOOTINGFAMILIES TROUBLESHOOTINGMANUALALLISON 4MANUALth GENERATION CONTROLS. . The Allison DOC For PCService Tool can also be used to override autodetect and manually enter the component or sensor to be recognized by the TCM by changing appropriate customer modifiable constants (CMC). . . . . . . . Ten-bolt, 1 o'clock and 8 o'clock positions (as viewed from rear) PTO drive gear ratio. There are no restrictions on engine speed in neutral. . . . . . . . VEHICLE INTERFACE MODULE . . . . . . . . . . . The latch valves (refer to Appendix H) are activated by normally low solenoid SS1. . . . Not available with (PTO) Power take-off. . . . . . . . The TCM may activate the main mod solenoid for improved clutch control and transmission response during other unusual operating situations. . . . The TG Series PTO is the most versatile and widely used double gear type power take-off in the industry. . . . . . . The VIM for 12V systems uses all 12V relays. 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. GENERAL TROUBLESHOOTING OF PERFORMANCE COMPLAINTS, A. The trans with the PTO setup is a different factor order code. . . . . 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. Owning Continue reading Allison Automatic Transmission Wiring Failure to perform maintenance and reset the monitor after a calibration-defined number of warnings results in the illumination of the CHECK TRANS light. . . . . . Multiple throttle sources can be detected on a single engine start and multiple confidence flags can be set. . . . Allison DOC (Diagnostic Optimized Connection) For PCService Tool is a PC-based diagnostic tool for use with 3000 and 4000 Product Families transmissions. This occurs when the remaining clutch life reaches. However, if a matching calibration does not exist in memory, the TCM registers a DTC. . . 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. . . A retarder will be identified as present and the retarder autodetect logic will stop once it is detected for three consecutive ignition cycles. . . . . . . See the selector information section for that procedure. . . . . . . . . Polyethylene 540 m/s. . 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. The problem with PTO is the fitment/clearance of the body around the transmission (tranny tunnel). Refer to Section 6, Diagnostic Trouble Codes, for the code clearing procedure. . . . . . . . . . . . . . . . . Check wiring for damaged/melted wires. . . . . . . CONTROL MODULE (Figures 17 and 18). . Do troubleshooting at the temperature level where the problem occurs. . . . . . Reset is accomplished by using Allison DOC For PCService Tool. . . . . . . The sensor operates on. . . . . With proper maintenance and normal usage. . TRANSID (TID) . . . . All Highway Series transmissions are programmed to restrict full operation until specific fluid temperatures are reached. . Your Allison transmission could be experiencing a part failure, in which case your best bet is to take advantage of the providers warranty. . . . . . . . . . . . . . . . . When disconnecting a harness connector, be sure the pulling force is applied to the connector itself and. . . . . . install a new TCM. Some OEMs may provide their own equivalent for the VIM which performs the same functions as the VIM shown in Figure 112. . . 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. . . . . . . . . . . . . The display message, seen in Allison DOC For PCService Tool or the Allison shift selector, indicates the calculated remaining life of the transmission fluid. . If the replacement TCM corrects the original complaint, reinstall the original TCM to verify that the complaint returns. . 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. . . Available with GVWs greater than 19.5K. . 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. . . . . . . Allison Transmission (AT) is responsible for warranty on these parts. . . . Check for contaminates in air cylinder. . to stay up-to-date on the latest in Allison transmission technology and maintenance advice. . 7200 Ertel Lane . . . This discussion is proudly sponsored by: Please support our sponsors and let them know you heard about their products on iRV2 Thread Tools Join the #1 RV Forum Today - It's Totally Free! . . . . . . . . . . . The Diagnostic Trouble Code section lists DTCs and their description. . . . 64 65. . . . All Allison transmissions are PTO ready. . . . . . . . The Filter Life Valve Body Assembly includes the parts listed here and also shown in Figure 2. This pressure forces the valves down to connect the necessary flow passages for clutch engagement. . . . . . . . . . . Be sure the transmission model matches the calibration in the TCM. . . . . . . . . The engine must be compatible with the transmission rating. DIAGNOSTIC TROUBLE CODE LIST AND DESCRIPTION, 6-6. . . The technician should be able to use jumper wires and breakout harnesses and connectors. . . . . NOTE: All external harnesses are OEM supplied. . Locate the appropriate troubleshooting chart and follow the instructions. HYDRAULIC OPERATION DURING ELECTRICAL INTERRUPTION. C1 D. WIRE/CONNECTOR CHART . Location: Logan Indiana (Near Cincinnati Ohio) Posts: 751. If the pto light in the dash cluster ( has to be the one in the cluster) is on , then the VECU should be getting the " PTO on" signal and operate as per the Pto parameters that were programmed in the VECU ( Vechicle control unit) . When disconnecting a harness connector, be sure the pulling force is applied to the connector itself and not the wires extending from the connector. . Do this for both wires in the circuit being tested. . . . . . . 5VDC supplied by the TCM. . . Wiring Diagram: Standard "H" Shift Option Model Years Standard.Muncie Power Products is a leading manufacturer of power take-offs (PTO), hydraulic components such as pumps, motors, cylinders, valves and reservoirs, and snow & ice removal products. . . . . Nylon 1150 m/s. . . . . . . . . When the TCM detects a serious fault, the CHECK TRANS light (usually located on the vehicle instrument panel) illuminates and action is automatically taken to protect operator, vehicle, and the transmission. . BASIC KNOWLEDGE REQUIRED. . . . . . . Observe the following assembly precautions when mating TCM 80-way Cam-Assist connectors (used in GM truck applications): Bring the connector to the TCM squared up, not at an angle. . . . . . If the problem recurs, proceed with Step (4). . . . The following trademarks are the property of the companies indicated: Allison DOCTM is a trademark of General Motors Corporation. . . . iv, 11. . . Whenever a transmission is overhauled, exchanged, or has undergone internal repairs, the TCM MUST. The . . . . . . If an OLS is known to be present, but has not been detected, troubleshooting the OLS circuit is required. . . Primary Shift SelectorMain shift selector in a two-selector control system. . . If a vehicle receives upgraded engine hardware or software it may become necessary to reactivate the Autoselect feature to redetect the engine current SEM status. TG Series PTO . . ALLISON TRANSMISSION_TS3977EN_Troubleshooting Manual 4th Gen 1000 & 2000 Prod Fam - Free ebook download as PDF File (.pdf), Text File (.txt) or read book online for free. . . . . . . . . . . . . . Depending upon the cause for the CHECK TRANS light illumination, the TCM may or may not respond to shift selector requests. . . . 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). . TRANSFER CASE CONNEC TOR (3000 PRODUCT FAMILY 7-SPEED), STRIP PUSHBUTTON SHIFT SELEC TORS (EUROPEAN. 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. . . . . . . Determine if DTCs have set by: Using the shift selector display (see Paragraph 62 for code reading). . . . . . . . . . . . The tools listed below are available for purchase from SPX/Kent-Moore. . . . . enhance vehicle handling. . Refer to Section 6. . If the engine temperature gauge indicates a high temperature, the transmission is probably overheated. . The hold override button must be pressed when shifting between R, N, and D. The hold override button is released when the desired selector position is reached. . . . . 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. . 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). . . . . Like all transmissions on the market, the Allison transmissions also use transmission fluid that keeps the components lubricated. Additional details for each of the four autodetectable features are given below. * Some transmissions used in oil field service default to neutral, 41. . . . Internet connection capability with Internet Explorer 5.0.1 or greater. . . . . Cold Check Procedure . . . . . . . . . Circuit has continuity. . . . . . . . . . Applications are diverse and include oil-. . . Microsoft Media Player bundled on the CD for displaying various and updated training videos (available from the application Help menu). . Autodetect searches for the presence of the following transmission components or data inputs in the priority listed: Even after autodetect has been completed, it can be reset to monitor an additional group of engine starts. . . Inspect all connector terminals for damage. . . . . . Make sure all connectors are tightly connected and. . . . . THROTTLE POSITION SENSOR . . . . Muncie PTO Parts Manual Downloads. . shorted-to-ground. CODE READING AND CODE CLEARING. This mode is triggered by anything that could cause severe damage to the transmission, including severe overheating or towing a very heavy load. . . . . . . . There are three full-function pushbutton shift selectors and a strip pushbutton shift selector. . . . 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. . . . . . . . . . . . . . . . IMPORTANT INFORMATION IN THE TROUBLESHOOTING PROCESS. AUTODETECT FEATURE. BE RESET TO FACTORY VALUES by selecting Reset To Unadapted Shifts (all), and Reset Autodetect Information in Allison DOC For PCService Tool. . . . . . . . NOTE: Required calendar-based fluid change intervals are not monitored by this function and those intervals remain applicable to all vehicle installations in addition to the above. Shouldn't have anything to do with the Allison ecm. During diagnostic display mode, illumination of the LED indicator shows that the displayed Diagnostic Trouble Code (DTC) is active. . . . . . . . THROTTLE POSITION SENSOR (Figure 15). External Wiring Harness. . . 58, 61. .F1 G. WELDING ON VEHICLE/VEHICLE INTERFACE MODULE . . . . . . . The PTO input to the TCM indicates the PTO is OFF. . . Two wires have frayed and are shorted together. . Do you know how to identify and deal with an issue that may arise with your Allison transmission? . . Allison, PTO internal leak "from" transmission. 117 D. Engine Coolant Temperature . Dont keep driving a vehicle with a faulty part! . . . . . . 55, 54. . . . . . . . . More information on both types of shift selectors is continued below. . . . . TCM Reprogramming tab, used to enable the reprogramming capability of the Allison DOC For. . . . 18 17. Mild Steel 3235 m/s. . . . . . . RESTTING OF TCM PARAMETERS TO SUPPORT ENGINE UPDATE . NOTE: The Filter Life Monitor triggers the SERVICE TRANS icon following a reset if the Filter Life indicator switch reopens. . . . Figure 11 is a block diagram of the basic system inputs and outputs. . . . . Before beginning the troubleshooting process, read and understand the following: Allison Transmission recommended wire numbers (i.e. MEASURING CLUTCH AND RETARDER PRESSURES . . The differential pressure limit is verified for a period of time to make sure there is no false filters change indication. . This simulates vehicle movements which occur during actual operation. . . . . . . . . . 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. . Diagnostic information is obtained by pressing the (Up) and (Down) arrow buttons at the same time.
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