. . . . . A revision is indicated by a new date on the title page and in the lower left corner of the rear cover. . Here are a few potential fixes! . This mode is triggered by anything that could cause severe damage to the transmission, including severe overheating or towing a very heavy load. . . . . . . . Welcome to the TS3989EN Troubleshooting Manual. . . . . Hot Check Procedure. . . . 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. . . . . 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. . . . . . MagiKey is a registered trademark of NEXIQ Technologies, Inc. Teflon is a registered trademark of the DuPont Corporation. . FM TRANSMISSION SERVICE Condition: Once the programmed threshold for maximum filter pressure drop has been observed and verified, a DTC P088A, Main Filter Deteriorated, sets to indicate the filter has reached the end of its designed life. . . Select RESET AUTODETECT RETARDER to search for a retarder only. . . . Repair parts for the external harnesses and external harness components must be obtained from St. Clair Technologies Inc. (SCTI). A loose dipstick, clogged breather, improper dipstick marking and water in the transmission are also probable causes of the problem. . 14 A. Pushbutton Shift Selector . In initial versions of Allison 4th Generation Controls, wire 176 is connected to high side driver 1 (HSD1), wire 111, in the internal wiring harness. . Message over the SAE J1939 communication interface. . . . . . . . . . . . . . . . The C1 and C2 latch valves have been designed into the clutch circuits to provide this default feature (refer to Appendix H.). . Technicians need to know how to use a digital volt/ohmmeter (DVOM) to make resistance and continuity tests. . . . . The Filter Life Valve strokes because of the higher main pressure (before the filter). . . 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. Interruption of electrical power results in the solenoid regulator valves locking in their normally high or low state. . . . High transmission fluid levels and a failed vacuum modulator may throw fluid out in an Allison transmission. . . . . . Typical Allison 4th Generation Shift Selectors, 14. . . . TG Series PTO . . . . This date is commonly used to denote the change configuration level of the TCM. . Retarder and engine brakes will not apply when ABS is active. The service tool manufacturer will furnish instructions for using the tools or equipment. Illumination of the CHECK TRANS light indicates that a condition was detected that requires service attention. . Chelsea PTO and Pumps For All Allison Transmission Models. . . . . . . . . . . 41, 42. . D1, E.CONNECTOR PART NUMBERS, TERMINAL PART NUMBERS, . 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 . . . . . . . To shift from reverse to forward, select N (Neutral) and then D (Drive) or other forward range. . . . . This is the date when the TCM passed final testing. All Allison transmissions are PTO ready. Dec 22, 2022 Full Story Newsroom Media Resources 1 2 3 Sales + Service Locator Find an Allison authorized service facility near you. . . . . . Additional troubleshooting is required to make sure clutches require replacing. . The selector lever can be moved freely between D and the numbered forward ranges without pressing the hold override button. . . . . . Use the Allison shift selector to review the current status of any of these functions, provided the function being checked is in its specific display mode. . . . . . . . . . . . . enhance vehicle handling. . NOTE: For the latest requirements, please refer to www.allisontransmission.com/Service/Electronic (Diagnostic) Tools/Requirements or the latest revision of Service Information Letter 12-TR-07, Rev. . . . . This acts on the other end of the Filter Life Valve, compressing the return spring and allowing control main pressure through the valve to PS2, which pressurizes the switch. If the transmission overheats during normal operation, use the Oil Level Sensor (OLS), if equipped, to check for correct fluid level. . . Service Indicator Light On. . Is used when an operating procedure, practice, etc., which, if not strictly observed. . . . . Replace trigger Check air pressure. . . . . If a retarder is present but is not detected by autodetect, the retarder will not function. . . . . . . If resets are restricted to the service tool, the selector will not be able to reset the function. Depending upon the cause for the CHECK TRANS light illumination, the TCM may or may not respond to shift selector requests. 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. . . . . . Allison Transmission (AT) is responsible for warranty on these parts. . . . . . 31 32. . . . However, this manual does provide a starting point from which most problems can be resolved. . The turbine speed signal is generated by the rotating-clutch housing spline contours. . Re-install shift cover. . . If dirty or corroded terminals are the probable cause of the problems, reconnect the clean connectors and operate the vehicle normally. . During diagnostic display mode, illumination of the LED indicator shows that the displayed Diagnostic Trouble Code (DTC) is active. 55 A. Fluid Level Check Procedure . . . . . . Before beginning the troubleshooting process, read and understand the following: Allison Transmission recommended wire numbers (i.e. . . More information on both types of shift selectors is continued below. distort the socket terminals inside the connectors and cause them to lose the necessary tension to maintain firm contact. . Terminals may have been bent or lost the necessary tension to maintain firm contact. . . . . . . . . . The TCM (Figure 13) contains the microcomputer which is the brain of the control system. If engine rating is not compatible, the vehicle must be returned to the OEM for engine recalibration. . Do not insert test probes larger than 0.81 mm into the TCM 80-way and transmission 20-way connectors. . . . . . . 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. . . . . . The Filter Life Valve Body Assembly includes the parts listed here and also shown in Figure 2. . Mild Steel 3235 m/s. . . . Thoroughly clean corroded or dirty terminals. . . . . . . . Engine speed less than 1200 rpm in all ranges except neutral. . Granted things a very busy right now at these sort of shops. . . . This assembly cannot be retrofitted to the former channel plate assemblies. . . . . . 64 65. . 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. . . . . Allison transmissions are custom-designed for several different industries and provide valuable power and work. . . . . . . . The TCM monitors the OLS input voltage on wire 116. First, set correct backlash between adapter and PTO and set the gaskets aside. Windows Media Player is installed by default, Adobe Acrobat Reader is installed by default. . . . . . . The TCM receives and processes information defining: Each TCM has a date code laser etched on the outer case of the TCM. When the C5 clutch is exhausted, as in second through sixth ranges, PS1 verifies the position of the C1 and C2 latch valves. . . . . . .614 B. Solenoid Locations . 5VDC supplied by the TCM. . . . SCTI provides a technical HELPLINE at 519-627-1673 (Wallaceburg). . . . . . Refer to the appropriate parts catalog for the transmission assembly number that you are servicing for detailed parts information. . . . Allison Transmission 5.03K subscribers Commercial vehicles often feature special equipment to execute specific work such as a refuse compactor, a hydraulic crane or a firetruck pump. . . . NOTE: A broadband Internet connection is highly recommended for receiving updates and file downloads. . Allison DOC For PCService Tool displays from 100 percent down to minus () 100 percent. . . . . 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. 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. . . . . . requiring 400 to 2400 horsepower engines. . . Suprman said: I have a few Allison transmissions. . . . . . . If yours appears to have never been replaced, your best bet is to contact the manufacturer and ask about the replacement process. . . . . b.If the continuity test is good (02 Ohms resistance), remove the jumpers. . . . ALLISON TRANSMISSION DIAGNOSTIC TOOL, 3-4. . . . . . . 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. Reviewing the Table of Contents will aid you in quickly locating information. COLD CHECK. . . . . . . . . . . . . . . 56, 55 HOT CHECK . . . . One end of the cable is attached to the engine fuel lever and the other, inside a protective housing, to the TPS potentiometer. . . will last you a very long time with few problems. There are three full-function pushbutton shift selectors and a strip pushbutton shift selector. . . Refer to the troubleshooting chart for the possible cause(s) of the problem. . Q1 R. SAE J1939 COMMUNICATION LINK . . . . . . . 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. . . . . Figure 15. . 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. Be retrofitted to the former channel plate assemblies shift from allison transmission pto troubleshooting to forward, select (! Updates and file downloads know how to use a digital volt/ohmmeter ( DVOM ) to make resistance and tests! Instructions for using the tools or equipment following: Allison transmission Models can be. Denote the change configuration level of the 3000 and 4000 Product Families electronic and electrical systems is (... Assembly includes the parts listed here and also shown in Figure 2. connection is highly recommended for updates... 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