. . . . . . . . Depending upon the cause for the CHECK TRANS light illumination, the TCM may or may not respond to shift selector requests. . This date is commonly used to denote the change configuration level of the TCM. . . . . . . . Once a problem solution is discovered in the manual do not look further for other solutions. WIRING HARNESSES. . . . All you need is your PTO series number to get started. . . The VIM for 24V systems has all 24V relays. . Retarder and engine brakes will not apply when ABS is active. . 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. . . . 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. Shorts involve. . . . . . . . Verify a new engine rating by checking the engine data tag. . The TCM senses the transmission configuration using TID wire 176. . Furthermore, TID only works when the controller and transmission have the same generation controls. . . 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. Interruption of electrical power results in the solenoid regulator valves locking in their normally high or low state. . . . . . Wiggle connectors, harnesses, and splices when looking for opens. . . . The display message indicates the operating status of the transmission main filter, based on the measured pressure drop across the filter. . . . . . . . SCTI provides parts to any Allison customer or OEM and is responsible for warranty on these parts. Service Manuals SM4013EN and SM4014EN, plus Parts Catalogs PC2150EN and PC2456EN may be used in conjunction with this manual. . . Refer to Section 8 for information concerning performance complaints (non-code) troubleshooting. . . . . . . If the complaint is confirmed. . . . . . . . . . . . . Is your Allison transmission not shifting properly? . . . Then, mount the PTO to the adapter with the correct gasket which you set aside. SHIFT SELECTOR DISPLAYS RELATED TO ACTIVE CODES, 6-5. . . . . . . . The TCM monitors the OLS input voltage on wire 116. . IMPORTANT INFORMATION IN THE TROUBLESHOOTING PROCESS, 3-5. . . . If resets are restricted to the service tool, the selector will not be able to reset the function. This feature is not functional until transmission sump temperatures are between 40150C (105302F). . . A. Anti-lock Brake SystemOEM-provided means to detect and prevent wheel stoppage to. . . . Using genuine Muncie repair parts is key to the life of your PTO. The voltage signal indicates the throttle position and, in combination with other input data, determines shift timing. . . . . . . . Windows Media Player is installed by default, Adobe Acrobat Reader is installed by default. . . . . Cold Check Procedure . These warnings and cautions are not exhaustive. . Also, many different styles and materials for harnesses are likely to be encountered. . With proper maintenance and normal usage. . . . . . . The exception is when C5 clutch is applied. . . . SCTI provides a technical HELPLINE at. . . The Allison 4th Generation Series transmission control module contains a main body assembly and solenoid valve body assembly, which are mounted to an aluminum channel plate. . . . 117 B. . . . . . Unfortunately, a driver cant reverse limp mode. . . The cleaning solvent should evaporate quickly to prevent the possibility of, condensation within the connectors. . . . . . . Determine if DTCs have set by: Using the shift selector display (see Paragraph 62 for code reading). . . . . . . . . NOTE: Most engine upgrades are same type/rating; under normal circumstances there should be no reason to reset the TCM Autoselect. Technicians unsure of making the required tests should ask questions of experienced personnel or find instruction. 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. . Use special tools when and in the manner recommended. . . 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. 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. Do you know how to identify and deal with an issue that may arise with your Allison transmission? Table 33 lists the operating range and pre-determined default range the transmission will shift to in the event of an electrical interruption. They have a 24 bolt bell housing with approx 21 inch diameter pattern. . Take advantage of our extensive warranty coverage to have your transmissions fixed or replaced with new models. . . . . . 15, 14. . Unfortunately, a driver can't reverse limp mode. Use the P/N from your appropriate parts catalog or from Appendix E in this manual. . . . . . . . H1 J. Allison DOC For PCService Tool indicates the Filter Life Monitor expired as YES or NO. D1, E.CONNECTOR PART NUMBERS, TERMINAL PART NUMBERS, . . . Allison Transmission Troubleshooting Manual 5000, 6000, 8000, 9000 Series Download. . . . anyone need wiring. . . . The Prognostics pressure switch is activated when fluid exiting the main filter drops below a predetermined pressure. . . . . Beginning the Troubleshooting Process . That range will be shown on the shift selector display. Like all transmissions on the market, the Allison transmissions also use transmission fluid that keeps the components lubricated. . How do you run a dump with a stick trans? . . . . 4.Review the Allison 4th Generation Controls wire numbering system described in Paragraph 34. . . . . . . . . . . . . . Once a confidence flag is set for any one of the sources, a counter begins to countdown for 15 additional engine starts. . . . . . . . . . The service tool manufacturer will furnish instructions for using the tools or equipment. . . . . . Also, be sure to review and observe WARNINGS, CAUTIONS, and NOTES provided by the vehicle manufacturer and/or body builder before servicing the Allison transmission in that vehicle. . The Allison 4th Generation controls system includes a main modulation solenoid. . . . During an electrical interruption, the latch valves cause the transmission to engage specific clutches based on the range in which the transmission was operating when the interruption occurred. . The PTO input to the TCM indicates the PTO is OFF. . . Control System Prognostics Operation and Display. All TCMs programmed and sold after that date will be loaded with the new TID calibration. . The C1 and C2 latch valves have been designed into the clutch circuits to provide this default feature (refer to Appendix H.). Selecting RESET ADAPTIVE SHIFT PARAMETERS will not reset autodetect logic. . . . . . . . . Trying to find out how a pto works on the Allison transmission. If temperatures do not decrease, reduce the engine rpm. . . . . 855 844-SALE | 855 844-7253. . . Frequently test for the presence of oil level diagnostics if the transmission is known to contain an OLS. . . Copyright 2008 Allison Transmission, Inc. P.O. . . . . . . . NOTE: Turn off the vehicle HIGH IDLE switch, if present, before shifting from N (Neutral) to D (Drive). . . . The diagnostic pressure switch PS1 is mounted on the solenoid valve body assembly and performs the following two functions: 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. . . . Seek service assistance as soon as possible. Common Allison 3000 Transmission Problems. . . . To use the Allison DOC For PCService Tool, select RESET AUTODETECT to search for all four devices. . Wire, terminal, and connector repair information. . . . 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. . . . . . 16. . . . Hence, the solenoids are referred to as pressure control solenoids (PCS). . 53 A. Fluid Level Reading Procedure. . Posted - 07/31/2008 : 09:53:50 AM . 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 solenoid regulator valves are controlled by solenoids that control transmission clutch application. . . . Primary Shift SelectorMain shift selector in a two-selector control system. The lube filter must be changed with the main filter. . If the code does not reappear, it may be an intermittent problem. . . . . . . . . . . . . . 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 service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations. . Shut off the engine and ignition before any harness connectors are disconnected or connected. . . . . If the complaint is confirmed. . . . 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. . . . Polyethylene 540 m/s. . . USING THE TROUBLESHOOTING MANUAL. . . 41, 42. . Allison transmissions built in the mid-2000s had a recall issued for their TCM module. . . . . . . . Allison Transmission Downshifting Question/Problem New Topic Reply to Topic Printer Friendly: Author: Topic : Buskid Top Member. . . . SCTI will have parts catalogs available. . . SCTI recognizes Allison Transmission, manufacturers, and SCTI part numbers. . . . . . . . . . . . . revision, for detailed information on the recommended cleaners. . . . If the engine is not supported, the TCM will lock to a non-SEM state. . Check with your Allison Transmission service outlet for the currently applicable publication. 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. . This occurs when the remaining fluid life is approximately 1 percent. . . . . NOTE: Is used when an operating procedure, practice, etc., is essential to highlight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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. . . . . . . . . Do not insert test probes larger than 0.81 mm into the TCM 80-way and transmission 20-way connectors. . . . . . . . . . . BEGINNING THE TROUBLESHOOTING PROCESS. Throttle percentage less than 15 percent in reverse, low (7-speed), first, or second range. . . . . . 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