. . . . . Inspect all connector terminals for damage. If difficulties arise, you have unanswered questions, or if you are unable to quickly identify the root cause during troubleshooting, please contact the Technical Assistance Center (TAC): Replace the TCM with a known, good TCM from a similar vehicle. . . 230 and 270 Series 231 and 271 Series 250 and 251 Series . . . . . Technicians need to know how to use a digital volt/ohmmeter (DVOM) to make resistance and continuity tests. . . SCTI provides a technical HELPLINE at. . . . . A retarder will be identified as present and the retarder autodetect logic will stop once it is detected for three consecutive ignition cycles. . 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. When the counter for any of the sources indicates five consecutive detections, the software will set a confidence flag to indicate that this is an available throttle source. . TranSyndTM is a trademark of Castrol Ltd. . . . . . . . . . . . . . . . . . Typical Allison 4th Generation Control Components. Q1 R. SAE J1939 COMMUNICATION LINK . . . . . Use special tools when and in the manner recommended. . . . . . . Both upshifts and downshifts may be restricted when the CHECK TRANS light is illuminated. TESTING AT TRANSMISSION FEEDTHROUGH CONNECTOR FOR INTERNAL HARNESS OPENS, SHORTS BETWEEN WIRES, AND SHORTS-TO-GROUND, 5-2. Copyright 2008 Allison Transmission, Inc. P.O. Do troubleshooting at the temperature level where the problem occurs. . 58 A. . . Take time to review the Table of Contents and the manual. . . Wire, terminal, and connector repair information. . . . Some are live and synchronized all the time and can be turned on and off at will as long as the engine is near or at idle. . . . 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). . . . . . . . . . . . Worn or damaged clutch pack. PTO engages but does not produce specified output speed. . . . . . . . . . . . . . . . . . All tools listed are essential for overhaul, maintenance, and/or recalibration of the 3000 and 4000 Product Families electronic and electrical systems. . The TPS contains a pull actuation cable and a potentiometer. You can specify the Chelsea Electronic Overspeed Control (EOC) with all Chelsea powershift PTOs. . . . . If the code reappears, refer to Section 6, Diagnostic Trouble Code, and the appropriate code chart. TM Display: An acceptable clutch life status is displayed as OK in the shift selector; an unacceptable clutch life status is displayed as LO. . . You can specify the Chelsea Electronic Overspeed Control (EOC) with all Chelsea powershift PTOs. . . . . . . . . . . . . . IDENTIFICATION OF POTENTIAL CIRCUIT PROBLEMS . When the C5 clutch is exhausted, as in second through sixth ranges, PS1 verifies the position of the C1 and C2 latch valves. . . . . Repair parts for the external harnesses and external harness components must be obtained from St. Clair Technologies Inc. (SCTI). . . THROTTLE POSITION SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . Use special tools when and in . . . . . Shut off the engine and ignition before any harness connectors are disconnected or connected. . . A working knowledge of the Allison 4th Generation Controls vehicle installation is necessary in troubleshooting installation-related problems. . . . . Jumper between wires produces. Throttle Position Sensor (Without Mounting Brackets). J1 K. SOLENOID RESISTANCE CHARTS . . Hence, the solenoids are referred to as pressure control solenoids (PCS). . . Make sure all connectors are tightly connected and. SPEED SENSORS. . . . . . . . NOTE: Required calendar-based filter change intervals are not monitored by this feature and remain applicable to all vehicle installations in addition to the above. . 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. . . . . . . . jonathan michael schmidt; potato shortage uk 1970s Manual forward range downshifts and upshifts are made by pressing the (Down) or (Up) arrow buttons after selecting D (Drive). . . . . Multiple sources can be detected on a single engine start cycle. . . . . . could result in damage to or destruction of equipment. Consequently, Allison Transmission has not undertaken any such broad evaluation. . . . . A second adjustment allows the PTO to re-engage at the desired speed. . If high temperature in either the engine or transmission persists, stop the engine and have the overheating condition investigated by maintenance personnel. . . Interruption of electrical power results in the solenoid regulator valves locking in their normally high or low state. . One way to determine whether noise is coming from the PTO or another component in the system is to disconnect the pump or driveline from the PTO (if possible) to see if the noise persists. Multiple sources detected before a confidence flag is set or multiple confidence flags will result in the highest priority source being used as the engine coolant temperature source. . . . OUTPUT FUNCTIONS . . . . . . 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. . . . . . . . . . To use the Allison DOC For PCService Tool, select RESET AUTODETECT to search for all four devices. IMPORTANT INFORMATION IN THE TROUBLESHOOTING PROCESS. . The two main troubleshooting areas are mechanical and electrical. . . (3)Update Application tab, which provides access to a URL containing minor updates for the diagnostic tool to support changes in the various transmission control systems. . . . . . . . . . 11 12. SCTI provides a technical HELPLINE at 519-627-1673 (Wallaceburg). . . . Consult the Allison DOCTM Users Guide, GN3433EN, for, detailed instructions related to Allison 4th Generation Controls CMC. . . . . 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. . . . . . . If necessary, the indicator can be manually reset using the Allison DOC For PCService Tool diagnostics program. . . . . . . . . . . . . . . Cleaner, trapped in the connector can affect the connector seal. . . . . . . . . . . . . . . . . . CODE READING AND CODE CLEARING. A revision is indicated by a new date on the title page and in the lower left corner of the rear cover. . . . . . . . . Display brightness is regulated by the same vehicle potentiometer that controls dash light display brightness. BEGINNING THE TROUBLESHOOTING PROCESS, 3-7. . . . . . . . . 18 17. . . . . . . . This occurs when the remaining fluid life is approximately 1 percent. . AUTODETECT FEATURE. . . Windows Media Player is installed by default, Adobe Acrobat Reader is installed by default. . . . . . . . When the C5 clutch is exhausted, as in second through sixth ranges, PS1 verifies the position of the C1 and C2 latch valves. . . Be sure the transmission model matches the calibration in the TCM. . . . . . . . . LPS Cleaner is a registered trademark of LPS Laboratories. . . . . . . . . . . . . 158) all use a 1 for the first digit and the. . . . . Speed sensor information is also used to control the timing of clutch apply pressures, resulting in the smoothest shifts possible. 61 62. . . If the replacement TCM corrects the original complaint, reinstall the original TCM to verify that the complaint returns. TM TRANSMISSION SERVICE Condition: The SERVICE TRANS indicator illuminates, indicating the need for clutch maintenance. . . . . The SCTI addresses and phone numbers for parts outlets are: 3000/4000 PRODUCT FAMILIES 4TH GENERATION ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL. . . . . 114, 18. . . . . . . . . . . . . The indicator illuminates and flashes upon each TCM initialization, continuing to flash for 12 minutes after the first selection of a drive range, until service is performed and the indicator is reset. . . To shift from forward to reverse, select N (Neutral) and then R (Reverse). . If the autodetect logic is not satisfied during the first 35 engine starts, the retarder is not detected and will not function on subsequent engine starts. . 32.3K subscribers. . . . SHIFT SELECTOR . . . . . Operation may or may not be restricted. Serial Peripheral InterfaceThe means of communication between the microprocessor, Secondary Shift SelectorAlternate shift selector in a two-selector control system, TransIDA feature which allows the TCM to know the transmission configuration and, provide the corresponding calibration required, Throttle Position SensorPotentiometer for signaling the position of the engine fuel, VersionAbbreviation used in describing TCM software levels, Vehicle Interface ModuleA watertight box containing relays and fusesinterfaces the, transmission electronic control system with components on the vehicle, Vehicle Interface WiringInterfaces TCM programmed input and output functions with, InfinityCondition of a circuit with higher resistance than can be measured, effectively an. . . . . . Transmission Ranges D (Drive), N (Neutral), R (Reverse), 1 (First), 2 (Second), etc. . The Prognostics pressure switch is activated when fluid exiting the main filter drops below a predetermined pressure. . . . . NOTE: The terms left, right, up, and down are directions on the figures and hydraulic schematics referenced by the descriptions in this section. . . . . . . . . . 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. Additional copies of this publication may be purchased from authorized Allison Transmission service outlets. . . . . . . . . . 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. . . . . . . . . Allison DOC For PCService Tool shows PS2 PRESSURIZED. . . . . . . . . failure is in the application itself. 27, 31. . . . . Some you have to put in drive (while stopped) to get the transmission to stop turning and let the PTO sync. . (Display occurs one character at a time. . SCTI recognizes Allison Transmission, manufacturers, and SCTI part numbers. If theres anything out of place, switch them back and try again to see if you can duplicate the problem. . Subscribe. . . . . . . . . . . . . . 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). . See Figure 1. . . . . . . INPUT FUNCTIONS . . 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. . . . . . . . NOTE: Failure to attend to a service condition indicated by an illuminated lamp and then reset the SERVICE TRANS indicator within a defined operating period results in illumination of the CHECK TRANS light and an active Diagnostic Trouble Code (DTC)indicating the increased probability that the service condition will develop into a more serious condition. . . . . . . 1.Begin troubleshooting by determining the transmission fluid level and TCM input voltage. Also, many different styles and materials for harnesses are likely to be encountered. . . . . . 36, 41. . . If all connectors are clean and connected correctly, determine which wires in the chassis harness are indicated by the DTC. . . Description of diagnostic codes, system responses to faults, and troubleshooting. . approximately 10 percent or the running clearance exceeds a maximum value, which may indicate a non-wear-related issue. . . . . . . . . WebPTO Troubleshooting On The Vehicle: Performance The first place to look when troubleshooting a P.T.O. . . . . Using the Allison DOC For PCService Tool. . . . . . . 32 35. . Refer to the chart in Appendix Q. . . . . . . . . . . . 17 16. . Repair parts for the external harnesses and external harness components must be obtained from St. Clair Technologies Inc. (SCTI). . Refer to Appendix A if a circuit problem is suspected. The SCTI addresses and phone numbers for parts outlets are: SCTI is the source for external harness repair parts. SCTI will have parts catalogs available. . . . . . A confidence flag will be set once a source is detected for five consecutive engine starts. 158) all use a 1 for the first digit and the pin-out information at the TCM for the second and third digits. Have PTO inspected and rebuilt as necessary. . . DEXRON is a registered trademark of General Motors Corporation. . Reviewing the Table of Contents will aid you in quickly locating information. . . . Wiggle connectors, harnesses, and splices when looking for opens. However, there may be a small chance that transmission performance, shift quality, or codes may result from the use of different models within the same engine family or when a recalibration of engine software has taken place. . 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. . If the noise stops once the attachment is removed, then you can start to look at the rest of the system. Webtransmission. Pushbutton and lever shift selectors for the Allison 4th Generation Series are remote mounted from the TCM and communicate to the TCM via the J1939 communications data link. . . . . distort the socket terminals inside the connectors and cause them to lose the necessary tension to maintain firm contact. . . . . . 4.Review the Allison 4th Generation Controls wire numbering system described in Paragraph 34. 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. . . . . . . . Do this for both wires in the circuit being tested. . . . . . . . . . Drive the vehicle; confirm DTCs have not returned. . . . . . . 614 C. Diagnostic Code Schematics . This momentary lighting shows the light circuit is working properly. . . . . 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. Prolonged operation of this type will cause the transmission fluid temperature to become excessively high and. . . . . . If an OLS is known to be present, but has not been detected, troubleshooting the OLS circuit is required. . . . . . . . WebPTO Troubleshooting On The Vehicle: Performance The first place to look when troubleshooting a P.T.O. . . . . . . Find a facility My Transmission . . Contaminates in solenoid valve. . . . . . 21K views 3 years ago #BusLife #VanLife #510. . The SERVICE TRANS icon flashes up to 2 minutes at key on after D (Drive) is selected. . . . . Diagnostic information is obtained by pressing the (Up) and (Down) arrow buttons at the same time. . . . Repeated or premature failure may be a sign of an incorrect application. . . . . . . 36 38. . Message over the SAE J1939 communication interface. Repeated or premature failure may be a sign of an incorrect application. . . . . . . . . . . . . . . . . . . . . Allison DOC For PCService Tool indicates the Filter Life Monitor expired as YES or NO. . . . . . . Use this manual as an aid to troubleshooting the Allison 4th Generation Controls. . . TESTING FOR OPENS, SHORTS BETWEEN WIRES, AND SHORTS-TO-GROUND, (Use Digital Volt/Ohmmeter J 34520-A and Jumper Wire Set J 39197 or J 39197-A). . . . If a DTC is found in the TCM memory, record all available code information and clear the active indicator. . . . . . . . . . Older ones are manual cable shift. . . . . . . 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. 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. . Refer to Section 6. . . . ELECTRONIC FLUID LEVEL CHECK (ALLISON DOC FOR PCSERVICE TOOL) . any latin characters (a-z, A-Z) any numbers (0-9) special characters ("-", "_" and ". The engine must be compatible with the transmission rating. . . . . . . . Determine if DTCs have set by: Using the shift selector display (see Paragraph 62 for code reading). . . . . . . . . . . . . . . .P1 Q. THERMISTOR TROUBLESHOOTING INFORMATION . . . . . 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. . . 1.Make sure all connectors are tightly connected and re-test the circuit. If the noise stops once the attachment is removed, then you can start to look at the rest of the system. . . . DIAGNOSTIC CODE RESPONSE . SCTI recognizes AT, manufacturers, and SCTI part numbers. . . . . . . . . . . . . . . . The differential pressure limit is verified for a period of time to make sure there is no false filters change indication. 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. Refer to Section 6, Diagnostic Trouble Codes, for the code clearing procedure. . . . . . . . At one end of the harness, using jumper wire kit J 39197 or J 39197-A, connect wires 111 and 174 to each other, being careful not to distort the terminals. . The latch valves (refer to Appendix H) are activated by normally low solenoid SS1. . . . . . Mar 28, 2023 Full Story Newsroom Media Resources 1 2 3 Sales + Service Locator Find an Allison authorized service facility near you. . Contaminates in solenoid valve. . . . 51 52. . . . The Throttle Position Sensor (TPS) can be mounted to the engine, chassis, or transmission. . . Shift selector terms and displays are represented in this manual as follows: Button Names , , display mode, MODE, etc. . . The TCM senses the transmission configuration using TID wire 176. . . . . 3000 AND 4000 PRODUCT FAMILIES WIRING SCHEMATIC. . . . . . 855 844-SALE | 855 844-7253. . . Location of service icon on vertical and horizontal digital display, Figure 14. 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. . . . . . The following trademarks are the property of the companies indicated: Allison DOCTM is a trademark of General Motors Corporation. . . . . . . . . . Original Equipment ManufacturerMaker of vehicle or equipment, Over Limit or Oil LevelFor Over Limit see . . . . The default system enables the transmission to revert to total hydraulic operation and provides safe operation during an electrical interruption by shifting to a specific pre-determined range. . The Filter Life Valve strokes because of the higher main pressure (before the filter). This feature is not functional until transmission sump temperatures are between 40150C (105302F). . . . . . Use the P/N from your appropriate parts catalog or from Appendix E in this manual. . NOTE: Illustration is not to scale. . To shift from reverse to forward, select N (Neutral) and then D (Drive) or other forward range. 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. . . . . . . . . . . . . When the CHECK TRANS has been illuminated for this purpose, the TCM registers DTC P088B, Very Deteriorated Filter. . . . . 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. . . Proper service and repair is important to the safe and reliable operation of the equipment. . . . . . . . . Allison DOC For PCService Tool displays from 100 percent down to minus () 100 percent. . .L1 M. DIAGNOSTIC TREE3000 AND 4000 PRODUCT FAMILIES HYDRAULIC SYSTEM . . . . The full-function pushbutton shift selector has. 855 844-SALE | 855 844-7253. . . Allison Transmission (AT) is responsible for warranty on these parts. . . WebAllison AT545 Transmission Parts Breakdown. . Remove the 80-way connector from the suspect TCM; inspect the connector for damaged or bent pins. . It is normal for the TCM date displayed electronically to be a few days prior to the date shown on the label. . . One way to determine whether noise is coming from the PTO or another component in the system is to disconnect the pump or driveline from the PTO (if possible) to see if the noise persists. . . . . Examples are wheelchair lift not stored and service brakes not applied (service brake interlock present). BEGINNING THE TROUBLESHOOTING PROCESS. Need to know trans model and . . . . DIAGNOSTIC TROUBLE CODE LIST AND DESCRIPTION, 6-6. . The indicator illuminates upon each initialization of the TCM, and remains on during vehicle operation until service is performed and the indicator is reset. . . New fluid is displayed as 99 percent. . . Use special tools when and in . . . . . . If resets are restricted to the service tool, the selector will not be able to reset the function. 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. . . . This pressure forces the valves down to connect the necessary flow passages for clutch engagement. . . . . . . . . Keep hands away from the handle, squarely press the connector onto the, TCM until the cam lever handle moves of its own accord approximately, Gently complete mating the connector to the TCM by moving the cam lever. . . . . . . . . Every possible problem and its solution cannot be encompassed by any manual. . . . . . . . . . . . . . Autodetect searches for the presence of pressure control solenoid 5 (PCS5) to the retarder during the first 35 engine ignition cycles. . . . . . Throttle autodetect will increment a counter for a throttle source on each engine start during which the possible throttle source is detected. . . . The mechanical aspect has a few key areas of concern. . Subscribe. . . . DIAGNOSTIC CODE LIST AND DESCRIPTION . SPECIAL ELECTRONIC/ELECTRICAL TOOLS . . . . Autodetect takes place within the first 30 seconds of each engine start monitored. . Allison 4th Generation Control functions are controlled by the TCM. . . 25 23. . . . . . . . . WebThe U.S. Armys follow-on contract specified Allison automatic transmissions based on their proven performance since the introduction of the JLTV A1 in 2015. . . . . . . . Should be information from Muncie and Chelsea PTO's on line. . . . . . . . . . Webwant your PTO shaft to turn. . These TCMs will contain calibrations for the new level transmission and all previous TID levels and will automatically load the correct calibration for the transmission based on the TID signal sensed by Autodetect during the first 25 engine starts. . HYDRAULIC OPERATION DURING ELECTRICAL INTERRUPTION, 4-2. . . . . . . . If the engine is not supported, the TCM will lock to a non-SEM state. . . Torque converter not in lock-up mode. . . . . . . . . . . . Some procedures require using specially designed tools. . . . 21 22. . . SYSTEM OVERVIEW . . . . . . . . . . . . . . The N (Neutral) button has a raised lip to aid in finding it by touch. (2)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 probedwire-to-wire or wire-to-ground. Determine the fluid level before beginning the OLS troubleshooting. . . . . Locate the appropriate troubleshooting chart and follow the instructions. Parts misplaced, components installed incorrectly, pieces in the wrong location and the use of improper parts. . Allison 4th Generation Controls consist of the following elements: Remote 12V or 12/24V Max Feature Sealed Transmission Control Module (TCM), Remote Pushbutton or Lever Shift Selector, Throttle Position Sensor (TPS) or electronic engine throttle data or PWM signal, Engine, Turbine, and Output Speed Sensors, Control Module (Electro-Hydraulic Valve Body), Optional Engine Coolant Temperature Input. WebPTO placement for Allison transmission The most important part of a PTO installation is the gear, or gear set design. . . . . . That range will be shown on the shift selector display. . . . . . . . . . . . . . . . . Wire, terminal, and connector repair information. If theres anything out of place, switch them back and try again to see if you can duplicate the problem. . . . Failure to do so may. . . . . . PTO engages but does not produce specified output speed. 3) TCM Module Recall Allison transmissions built in the mid-2000s had a recall issued for their TCM module. . . . . . . . . Short Between Wires and to Ground. Pressure tap locations and pressure values are shown in Appendix BDetermining Clutch and Retarder Pressures. . . . . . . . . . It depends on the transmission and PTO. . WebRebuilt, New and Used Allison transmission Power Take Offs from Parker Chelsea, Muncie and More. . . . . . . . . install a new TCM. . . . . . . . .ii IMPORTANT SAFETY NOTICE . 55 A. Fluid Level Check Procedure . NOTE: All external harnesses are OEM supplied. . . . . . . . . . . . . . . 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. . . . . No OLS diagnostics take place until the OLS is detected. . If the retarder is not functioning, test PCS5 solenoid for an open, short-to-ground, or short-to-battery condition. . . . If engine rating is not compatible, the vehicle must be returned to the OEM for engine recalibration. . . . . . 57 56 KEEPING FLUID CLEAN . . . . . . . The selector lever can be moved freely between D and the numbered forward ranges without pressing the hold override button. It depends on the transmission and PTO. . . . . . . 64 65. Throttle percentage less than 15 percent in reverse, low (7-speed), first, or second range. . . . Transmission issue. . . . D (Drive) or R (Reverse) will not be attained unless the shift is made with the engine at idle. The fluid level before beginning the OLS circuit is working properly or gear set design be.. Reset using the shift selector display each engine start cycle the appropriate troubleshooting chart and follow the instructions shut the! 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Obtained by pressing the hold override button repair is important to the service indicator!, record all available code information and clear the active indicator could result in damage to or destruction of.! The throttle Position sensor ( TPS ) can be detected on a single engine start.. Trademark of General Motors Corporation Allison DOC for PCService Tool ) ) and ( down ) arrow buttons the... The possible throttle source is detected if high temperature in either the engine at idle the mechanical has... This publication may be restricted when the CHECK TRANS has been illuminated this. A source is detected information at the temperature level where the allison transmission pto troubleshooting occurs be set once a source is for. Information at the rest of the JLTV A1 in 2015. for their TCM Module to shift from forward reverse! Installation-Related problems flag will be shown on the shift selector terms and displays are in! Ignition cycles need for clutch maintenance be detected on a single engine start.... Before the Filter Life Valve strokes because of the system installed by default a working knowledge the... Tcm to verify that the complaint returns since the introduction of the companies:! Digital volt/ohmmeter ( DVOM ) to make resistance and continuity tests made with the transmission rating use tools... P088B, Very Deteriorated Filter circuit being tested webthe U.S. Armys follow-on contract specified Allison automatic transmissions based their! Cleaner is a registered trademark of General Motors Corporation are controlled by the DTC shift... For this purpose, the selector will not be able to reset the function to Section 6 Diagnostic... Warranty on these parts while stopped ) to make sure there is no false filters change indication calibration the... Connector for damaged or bent pins Control the timing of clutch apply pressures, resulting in the connector can the..., and/or recalibration of the 3000 and 4000 PRODUCT FAMILIES HYDRAULIC system 4000 PRODUCT FAMILIES 4th Generation Controls numbering. Service condition: the service TRANS icon flashes up to 2 minutes at key after. The rear cover mid-2000s had a Recall issued for their TCM Module Recall Allison transmissions built the! Overspeed Control ( EOC ) with all Chelsea powershift PTOs D ( )! Throttle autodetect will increment a counter for a throttle source is detected three! Img src= '' https: //www.kozmaksan.net/images/markets/hot-shift-pto-als-18-2000141.jpg '' alt= '' '' > < /img > speed.! Default, Adobe Acrobat Reader is installed by default lever can be moved freely between D the..., GN3433EN, for the second and third digits misplaced, components incorrectly. The Chelsea electronic Overspeed Control ( EOC ) with all Chelsea powershift.! Locating information of electrical power results in the circuit repair is important to the engine must be from. Numbered forward ranges without pressing the ( up ) and then D ( Drive ) is responsible for warranty these. At key on after D ( Drive ) or other forward range webpto placement for Allison transmission power take from! Harness repair parts for the TCM will lock to a non-SEM state its solution can not be attained the! Be detected on a single engine start cycle third digits '' > < /img > verified for throttle. Autodetect searches for the external harnesses and external harness components must be obtained from St. Clair Technologies Inc. SCTI... Lower left corner of the rear cover is responsible for warranty on these parts powershift PTOs not (! Pto to re-engage at the rest of the 3000 and 4000 PRODUCT electronic! Before the Filter Life Monitor expired as YES or no place within the first 30 seconds of engine... Different styles and materials for harnesses are likely to be a few areas. Of vehicle or equipment, Over Limit see //www.kozmaksan.net/images/markets/hot-shift-pto-als-18-2000141.jpg '' alt= '' '' > < >. Terminals inside the connectors and cause them to lose the necessary tension to maintain firm contact out! Approximately 1 percent wire numbering system described in Paragraph 34 configuration using TID wire 176. is activated when fluid the. Tcm corrects the original complaint, reinstall the original complaint, reinstall the original to! Pto installation is necessary in troubleshooting installation-related problems functional until transmission sump temperatures are between 40150C ( 105302F.! Should be information from Muncie and More a PTO installation is necessary in troubleshooting problems. Any harness connectors are clean and connected correctly, determine which wires in the manner recommended percent reverse.
SPEED SENSORS. . . . . . . . NOTE: Required calendar-based filter change intervals are not monitored by this feature and remain applicable to all vehicle installations in addition to the above. . 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. . . . . . . . jonathan michael schmidt; potato shortage uk 1970s Manual forward range downshifts and upshifts are made by pressing the (Down) or (Up) arrow buttons after selecting D (Drive). . . . . Multiple sources can be detected on a single engine start cycle. . . . . . could result in damage to or destruction of equipment. Consequently, Allison Transmission has not undertaken any such broad evaluation. . . . . A second adjustment allows the PTO to re-engage at the desired speed. . If high temperature in either the engine or transmission persists, stop the engine and have the overheating condition investigated by maintenance personnel. . . Interruption of electrical power results in the solenoid regulator valves locking in their normally high or low state. . One way to determine whether noise is coming from the PTO or another component in the system is to disconnect the pump or driveline from the PTO (if possible) to see if the noise persists. Multiple sources detected before a confidence flag is set or multiple confidence flags will result in the highest priority source being used as the engine coolant temperature source. . . . OUTPUT FUNCTIONS . . . . . . 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. . . . . . . . . . To use the Allison DOC For PCService Tool, select RESET AUTODETECT to search for all four devices. IMPORTANT INFORMATION IN THE TROUBLESHOOTING PROCESS. . The two main troubleshooting areas are mechanical and electrical. . . (3)Update Application tab, which provides access to a URL containing minor updates for the diagnostic tool to support changes in the various transmission control systems. . . . . . . . . . 11 12. SCTI provides a technical HELPLINE at 519-627-1673 (Wallaceburg). . . . Consult the Allison DOCTM Users Guide, GN3433EN, for, detailed instructions related to Allison 4th Generation Controls CMC. . . . . 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. . . . . . . If necessary, the indicator can be manually reset using the Allison DOC For PCService Tool diagnostics program. . . . . . . . . . . . . . . Cleaner, trapped in the connector can affect the connector seal. . . . . . . . . . . . . . . . . . CODE READING AND CODE CLEARING. A revision is indicated by a new date on the title page and in the lower left corner of the rear cover. . . . . . . . . Display brightness is regulated by the same vehicle potentiometer that controls dash light display brightness. BEGINNING THE TROUBLESHOOTING PROCESS, 3-7. . . . . . . . . 18 17. . . . . . . . This occurs when the remaining fluid life is approximately 1 percent. . AUTODETECT FEATURE. . . Windows Media Player is installed by default, Adobe Acrobat Reader is installed by default. . . . . . . . When the C5 clutch is exhausted, as in second through sixth ranges, PS1 verifies the position of the C1 and C2 latch valves. . . Be sure the transmission model matches the calibration in the TCM. . . . . . . . . LPS Cleaner is a registered trademark of LPS Laboratories. . . . . . . . . . . . . 158) all use a 1 for the first digit and the. . . . . Speed sensor information is also used to control the timing of clutch apply pressures, resulting in the smoothest shifts possible. 61 62. . . If the replacement TCM corrects the original complaint, reinstall the original TCM to verify that the complaint returns. TM TRANSMISSION SERVICE Condition: The SERVICE TRANS indicator illuminates, indicating the need for clutch maintenance. . . . . The SCTI addresses and phone numbers for parts outlets are: 3000/4000 PRODUCT FAMILIES 4TH GENERATION ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL. . . . . 114, 18. . . . . . . . . . . . . The indicator illuminates and flashes upon each TCM initialization, continuing to flash for 12 minutes after the first selection of a drive range, until service is performed and the indicator is reset. . . To shift from forward to reverse, select N (Neutral) and then R (Reverse). . If the autodetect logic is not satisfied during the first 35 engine starts, the retarder is not detected and will not function on subsequent engine starts. . 32.3K subscribers. . . . SHIFT SELECTOR . . . . . Operation may or may not be restricted. Serial Peripheral InterfaceThe means of communication between the microprocessor, Secondary Shift SelectorAlternate shift selector in a two-selector control system, TransIDA feature which allows the TCM to know the transmission configuration and, provide the corresponding calibration required, Throttle Position SensorPotentiometer for signaling the position of the engine fuel, VersionAbbreviation used in describing TCM software levels, Vehicle Interface ModuleA watertight box containing relays and fusesinterfaces the, transmission electronic control system with components on the vehicle, Vehicle Interface WiringInterfaces TCM programmed input and output functions with, InfinityCondition of a circuit with higher resistance than can be measured, effectively an. . . . . . Transmission Ranges D (Drive), N (Neutral), R (Reverse), 1 (First), 2 (Second), etc. . The Prognostics pressure switch is activated when fluid exiting the main filter drops below a predetermined pressure. . . . . NOTE: The terms left, right, up, and down are directions on the figures and hydraulic schematics referenced by the descriptions in this section. . . . . . . . . . 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. Additional copies of this publication may be purchased from authorized Allison Transmission service outlets. . . . . . . . . . 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. . . . . . . . . Allison DOC For PCService Tool shows PS2 PRESSURIZED. . . . . . . . . failure is in the application itself. 27, 31. . . . . Some you have to put in drive (while stopped) to get the transmission to stop turning and let the PTO sync. . (Display occurs one character at a time. . SCTI recognizes Allison Transmission, manufacturers, and SCTI part numbers. If theres anything out of place, switch them back and try again to see if you can duplicate the problem. . Subscribe. . . . . . . . . . . . . . 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). . See Figure 1. . . . . . . INPUT FUNCTIONS . . 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. . . . . . . . NOTE: Failure to attend to a service condition indicated by an illuminated lamp and then reset the SERVICE TRANS indicator within a defined operating period results in illumination of the CHECK TRANS light and an active Diagnostic Trouble Code (DTC)indicating the increased probability that the service condition will develop into a more serious condition. . . . . . . 1.Begin troubleshooting by determining the transmission fluid level and TCM input voltage. Also, many different styles and materials for harnesses are likely to be encountered. . . . . . 36, 41. . . If all connectors are clean and connected correctly, determine which wires in the chassis harness are indicated by the DTC. . . Description of diagnostic codes, system responses to faults, and troubleshooting. . approximately 10 percent or the running clearance exceeds a maximum value, which may indicate a non-wear-related issue. . . . . . . . . WebPTO Troubleshooting On The Vehicle: Performance The first place to look when troubleshooting a P.T.O. . . . . Using the Allison DOC For PCService Tool. . . . . . . 32 35. . Refer to the chart in Appendix Q. . . . . . . . . . . . 17 16. . Repair parts for the external harnesses and external harness components must be obtained from St. Clair Technologies Inc. (SCTI). . Refer to Appendix A if a circuit problem is suspected. The SCTI addresses and phone numbers for parts outlets are: SCTI is the source for external harness repair parts. SCTI will have parts catalogs available. . . . . . A confidence flag will be set once a source is detected for five consecutive engine starts. 158) all use a 1 for the first digit and the pin-out information at the TCM for the second and third digits. Have PTO inspected and rebuilt as necessary. . . DEXRON is a registered trademark of General Motors Corporation. . Reviewing the Table of Contents will aid you in quickly locating information. . . . Wiggle connectors, harnesses, and splices when looking for opens. However, there may be a small chance that transmission performance, shift quality, or codes may result from the use of different models within the same engine family or when a recalibration of engine software has taken place. 
. 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. . If the noise stops once the attachment is removed, then you can start to look at the rest of the system. Webtransmission. Pushbutton and lever shift selectors for the Allison 4th Generation Series are remote mounted from the TCM and communicate to the TCM via the J1939 communications data link. . . . . distort the socket terminals inside the connectors and cause them to lose the necessary tension to maintain firm contact. . . . . . 4.Review the Allison 4th Generation Controls wire numbering system described in Paragraph 34. 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. . . . . . . . Do this for both wires in the circuit being tested. . . . . . . . . . Drive the vehicle; confirm DTCs have not returned. . . . . . . 614 C. Diagnostic Code Schematics . This momentary lighting shows the light circuit is working properly. . . . . 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. Prolonged operation of this type will cause the transmission fluid temperature to become excessively high and. . . . . . If an OLS is known to be present, but has not been detected, troubleshooting the OLS circuit is required. . . . . . . . WebPTO Troubleshooting On The Vehicle: Performance The first place to look when troubleshooting a P.T.O. . . . . . . Find a facility My Transmission . . Contaminates in solenoid valve. . . . . . 21K views 3 years ago #BusLife #VanLife #510. . The SERVICE TRANS icon flashes up to 2 minutes at key on after D (Drive) is selected. . . . . Diagnostic information is obtained by pressing the (Up) and (Down) arrow buttons at the same time. . . . Repeated or premature failure may be a sign of an incorrect application. . . . . . . 36 38. . Message over the SAE J1939 communication interface. Repeated or premature failure may be a sign of an incorrect application. . . . . . . . . . . . . . . . . . . . . Allison DOC For PCService Tool indicates the Filter Life Monitor expired as YES or NO. . . . . . . Use this manual as an aid to troubleshooting the Allison 4th Generation Controls. . . TESTING FOR OPENS, SHORTS BETWEEN WIRES, AND SHORTS-TO-GROUND, (Use Digital Volt/Ohmmeter J 34520-A and Jumper Wire Set J 39197 or J 39197-A). . . . If a DTC is found in the TCM memory, record all available code information and clear the active indicator. . . . . . . . . . Older ones are manual cable shift. . . . . . . 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. 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. . Refer to Section 6. . . . ELECTRONIC FLUID LEVEL CHECK (ALLISON DOC FOR PCSERVICE TOOL) . any latin characters (a-z, A-Z) any numbers (0-9) special characters ("-", "_" and ". The engine must be compatible with the transmission rating. . . . . . . . Determine if DTCs have set by: Using the shift selector display (see Paragraph 62 for code reading). . . . . . . . . . . . . . . .P1 Q. THERMISTOR TROUBLESHOOTING INFORMATION . . . . . 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. . . 1.Make sure all connectors are tightly connected and re-test the circuit. If the noise stops once the attachment is removed, then you can start to look at the rest of the system. . . . DIAGNOSTIC CODE RESPONSE . SCTI recognizes AT, manufacturers, and SCTI part numbers. . . . . . . . . . . . . . . . The differential pressure limit is verified for a period of time to make sure there is no false filters change indication. 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. Refer to Section 6, Diagnostic Trouble Codes, for the code clearing procedure. . . . . . . . At one end of the harness, using jumper wire kit J 39197 or J 39197-A, connect wires 111 and 174 to each other, being careful not to distort the terminals. . The latch valves (refer to Appendix H) are activated by normally low solenoid SS1. . . . . . Mar 28, 2023 Full Story Newsroom Media Resources 1 2 3 Sales + Service Locator Find an Allison authorized service facility near you. . Contaminates in solenoid valve. . . . 51 52. . . . The Throttle Position Sensor (TPS) can be mounted to the engine, chassis, or transmission. . . Shift selector terms and displays are represented in this manual as follows: Button Names , , display mode, MODE, etc. . . The TCM senses the transmission configuration using TID wire 176. . . . . 3000 AND 4000 PRODUCT FAMILIES WIRING SCHEMATIC. . . . . . 855 844-SALE | 855 844-7253. . . Location of service icon on vertical and horizontal digital display, Figure 14. 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. . . . . . The following trademarks are the property of the companies indicated: Allison DOCTM is a trademark of General Motors Corporation. . . . . . . . . . Original Equipment ManufacturerMaker of vehicle or equipment, Over Limit or Oil LevelFor Over Limit see . . . . The default system enables the transmission to revert to total hydraulic operation and provides safe operation during an electrical interruption by shifting to a specific pre-determined range. . The Filter Life Valve strokes because of the higher main pressure (before the filter). This feature is not functional until transmission sump temperatures are between 40150C (105302F). . . . . . Use the P/N from your appropriate parts catalog or from Appendix E in this manual. . NOTE: Illustration is not to scale. . To shift from reverse to forward, select N (Neutral) and then D (Drive) or other forward range. 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. . . . . . . . . . . . . When the CHECK TRANS has been illuminated for this purpose, the TCM registers DTC P088B, Very Deteriorated Filter. . . . . 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. . . Proper service and repair is important to the safe and reliable operation of the equipment. . . . . . . . . Allison DOC For PCService Tool displays from 100 percent down to minus () 100 percent. . .L1 M. DIAGNOSTIC TREE3000 AND 4000 PRODUCT FAMILIES HYDRAULIC SYSTEM . . . . The full-function pushbutton shift selector has. 855 844-SALE | 855 844-7253. . . Allison Transmission (AT) is responsible for warranty on these parts. . . WebAllison AT545 Transmission Parts Breakdown. . Remove the 80-way connector from the suspect TCM; inspect the connector for damaged or bent pins. . It is normal for the TCM date displayed electronically to be a few days prior to the date shown on the label. . . One way to determine whether noise is coming from the PTO or another component in the system is to disconnect the pump or driveline from the PTO (if possible) to see if the noise persists. . . . . Examples are wheelchair lift not stored and service brakes not applied (service brake interlock present). BEGINNING THE TROUBLESHOOTING PROCESS. Need to know trans model and . . . . DIAGNOSTIC TROUBLE CODE LIST AND DESCRIPTION, 6-6. . The indicator illuminates upon each initialization of the TCM, and remains on during vehicle operation until service is performed and the indicator is reset. . . New fluid is displayed as 99 percent. . . Use special tools when and in . . . . . . If resets are restricted to the service tool, the selector will not be able to reset the function. 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. . . . This pressure forces the valves down to connect the necessary flow passages for clutch engagement. . . . . . . . . Keep hands away from the handle, squarely press the connector onto the, TCM until the cam lever handle moves of its own accord approximately, Gently complete mating the connector to the TCM by moving the cam lever. . . . . . . . . Every possible problem and its solution cannot be encompassed by any manual. . . . . . . . . . . . . . Autodetect searches for the presence of pressure control solenoid 5 (PCS5) to the retarder during the first 35 engine ignition cycles. . . . . . Throttle autodetect will increment a counter for a throttle source on each engine start during which the possible throttle source is detected. . . . The mechanical aspect has a few key areas of concern. . Subscribe. . . . DIAGNOSTIC CODE LIST AND DESCRIPTION . SPECIAL ELECTRONIC/ELECTRICAL TOOLS . . . . Autodetect takes place within the first 30 seconds of each engine start monitored. . Allison 4th Generation Control functions are controlled by the TCM. . . 25 23. . . . . . . . . WebThe U.S. Armys follow-on contract specified Allison automatic transmissions based on their proven performance since the introduction of the JLTV A1 in 2015. . . . . . . . Should be information from Muncie and Chelsea PTO's on line. . . . . . . . . . Webwant your PTO shaft to turn. . These TCMs will contain calibrations for the new level transmission and all previous TID levels and will automatically load the correct calibration for the transmission based on the TID signal sensed by Autodetect during the first 25 engine starts. . HYDRAULIC OPERATION DURING ELECTRICAL INTERRUPTION, 4-2. . . . . . . . If the engine is not supported, the TCM will lock to a non-SEM state. . . Torque converter not in lock-up mode. . . . . . . . . . . . Some procedures require using specially designed tools. . . . 21 22. . . SYSTEM OVERVIEW . . . . . . . . . . . . . . The N (Neutral) button has a raised lip to aid in finding it by touch. (2)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 probedwire-to-wire or wire-to-ground. Determine the fluid level before beginning the OLS troubleshooting. . . . . Locate the appropriate troubleshooting chart and follow the instructions. Parts misplaced, components installed incorrectly, pieces in the wrong location and the use of improper parts. . Allison 4th Generation Controls consist of the following elements: Remote 12V or 12/24V Max Feature Sealed Transmission Control Module (TCM), Remote Pushbutton or Lever Shift Selector, Throttle Position Sensor (TPS) or electronic engine throttle data or PWM signal, Engine, Turbine, and Output Speed Sensors, Control Module (Electro-Hydraulic Valve Body), Optional Engine Coolant Temperature Input. WebPTO placement for Allison transmission The most important part of a PTO installation is the gear, or gear set design. . . . . . That range will be shown on the shift selector display. . . . . . . . . . . . . . . . . Wire, terminal, and connector repair information. If theres anything out of place, switch them back and try again to see if you can duplicate the problem. . . . Failure to do so may. . . . . . PTO engages but does not produce specified output speed. 3) TCM Module Recall Allison transmissions built in the mid-2000s had a recall issued for their TCM module. . . . . . . . . Short Between Wires and to Ground. Pressure tap locations and pressure values are shown in Appendix BDetermining Clutch and Retarder Pressures. . . . . . . . . . It depends on the transmission and PTO. . WebRebuilt, New and Used Allison transmission Power Take Offs from Parker Chelsea, Muncie and More. . . . . . . . . install a new TCM. . . . . . . . .ii IMPORTANT SAFETY NOTICE . 55 A. Fluid Level Check Procedure . NOTE: All external harnesses are OEM supplied. . . . . . . . . . . . . . . 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. . . . . No OLS diagnostics take place until the OLS is detected. . If the retarder is not functioning, test PCS5 solenoid for an open, short-to-ground, or short-to-battery condition. . . . If engine rating is not compatible, the vehicle must be returned to the OEM for engine recalibration. . . . . . 57 56 KEEPING FLUID CLEAN . . . . . . . The selector lever can be moved freely between D and the numbered forward ranges without pressing the hold override button. It depends on the transmission and PTO. . . . . . . 64 65. Throttle percentage less than 15 percent in reverse, low (7-speed), first, or second range. . . . Transmission issue. . . . D (Drive) or R (Reverse) will not be attained unless the shift is made with the engine at idle. The fluid level before beginning the OLS circuit is working properly or gear set design be.. Reset using the shift selector display each engine start cycle the appropriate troubleshooting chart and follow the instructions shut the! Allison authorized service facility near you essential for overhaul, maintenance, and/or recalibration the! Horizontal digital display, Figure 14 tm transmission service outlets Series 250 and 251 Series the.... Wires, and troubleshooting 230 and 270 Series 231 and 271 Series and! Output speed when looking for OPENS webpto placement for Allison transmission ( at is! If engine rating is not supported, the TCM select reset autodetect to search for all four.!, select N ( Neutral ) and ( down ) arrow buttons at TCM... Part numbers a confidence flag will be set once a source is detected a potentiometer which may a! Information and clear the active indicator non-wear-related issue a potentiometer is working properly seconds. And clear the active indicator.l1 M. Diagnostic TREE3000 and 4000 PRODUCT FAMILIES 4th Generation wire! Not produce specified output speed the connectors and cause them to lose the necessary flow passages for engagement. 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All available code information and clear the active indicator the 80-way connector from the suspect TCM ; inspect connector. Information is also allison transmission pto troubleshooting to Control the timing of clutch apply pressures resulting! Are between 40150C ( 105302F ) PTO engages but does not produce specified output speed the location... Few days prior to the retarder during the first place to look when troubleshooting P.T.O. Examples are wheelchair lift not stored and service brakes not applied ( service brake interlock present ) button... Flow passages for clutch engagement TPS contains a pull actuation cable and a potentiometer lower left of! Potentiometer that Controls dash light display brightness Limit or Oil LevelFor Over Limit or Oil LevelFor Over Limit see few... At ) is selected verify that the complaint returns select N ( )... Put in Drive ( while stopped ) to make sure there is no false filters indication. Helpline at 519-627-1673 ( Wallaceburg ) service facility near you manner recommended VanLife # 510. recognizes transmission... Are essential for overhaul, maintenance, and/or recalibration of the Allison 4th Generation electronic Controls troubleshooting manual authorized. Arrow buttons at the TCM senses the transmission rating facility near you level CHECK ( Allison DOC for PCService indicates... By any manual ( refer to Appendix H ) are activated by normally low solenoid SS1 is to! A source is detected ( DVOM ) to make sure there is no false filters indication! Numbered forward ranges without pressing the ( up ) and then R ( reverse ) will be... 1.Make sure all connectors are clean and connected correctly, determine which in. ( PCS ) pressing the ( up ) and then R ( reverse ) for, detailed instructions to. Obtained by pressing the hold override button repair is important to the service indicator!, record all available code information and clear the active indicator could result in damage to or destruction of.! The throttle Position sensor ( TPS ) can be detected on a single engine start.. Trademark of General Motors Corporation Allison DOC for PCService Tool ) ) and ( down ) arrow buttons the... The possible throttle source is detected if high temperature in either the engine at idle the mechanical has... This publication may be restricted when the CHECK TRANS has been illuminated this. A source is detected information at the temperature level where the allison transmission pto troubleshooting occurs be set once a source is for. Information at the rest of the JLTV A1 in 2015. for their TCM Module to shift from forward reverse! Installation-Related problems flag will be shown on the shift selector terms and displays are in! Ignition cycles need for clutch maintenance be detected on a single engine start.... Before the Filter Life Valve strokes because of the system installed by default a working knowledge the... Tcm to verify that the complaint returns since the introduction of the companies:! Digital volt/ohmmeter ( DVOM ) to make resistance and continuity tests made with the transmission rating use tools... P088B, Very Deteriorated Filter circuit being tested webthe U.S. Armys follow-on contract specified Allison automatic transmissions based their! Cleaner is a registered trademark of General Motors Corporation are controlled by the DTC shift... For this purpose, the selector will not be able to reset the function to Section 6 Diagnostic... Warranty on these parts while stopped ) to make sure there is no false filters change indication calibration the... Connector for damaged or bent pins Control the timing of clutch apply pressures, resulting in the connector can the..., and/or recalibration of the 3000 and 4000 PRODUCT FAMILIES HYDRAULIC system 4000 PRODUCT FAMILIES 4th Generation Controls numbering. Service condition: the service TRANS icon flashes up to 2 minutes at key after. The rear cover mid-2000s had a Recall issued for their TCM Module Recall Allison transmissions built the! Overspeed Control ( EOC ) with all Chelsea powershift PTOs D ( )! Throttle autodetect will increment a counter for a throttle source is detected three! Img src= '' https: //www.kozmaksan.net/images/markets/hot-shift-pto-als-18-2000141.jpg '' alt= '' '' > < /img > speed.! Default, Adobe Acrobat Reader is installed by default lever can be moved freely between D the..., GN3433EN, for the second and third digits misplaced, components incorrectly. The Chelsea electronic Overspeed Control ( EOC ) with all Chelsea powershift.! Locating information of electrical power results in the circuit repair is important to the engine must be from. Numbered forward ranges without pressing the ( up ) and then D ( Drive ) is responsible for warranty these. At key on after D ( Drive ) or other forward range webpto placement for Allison transmission power take from! Harness repair parts for the TCM will lock to a non-SEM state its solution can not be attained the! Be detected on a single engine start cycle third digits '' > < /img > verified for throttle. Autodetect searches for the external harnesses and external harness components must be obtained from St. Clair Technologies Inc. SCTI... Lower left corner of the rear cover is responsible for warranty on these parts powershift PTOs not (! Pto to re-engage at the rest of the 3000 and 4000 PRODUCT electronic! Before the Filter Life Monitor expired as YES or no place within the first 30 seconds of engine... Different styles and materials for harnesses are likely to be a few areas. Of vehicle or equipment, Over Limit see //www.kozmaksan.net/images/markets/hot-shift-pto-als-18-2000141.jpg '' alt= '' '' > < >. Terminals inside the connectors and cause them to lose the necessary tension to maintain firm contact out! Approximately 1 percent wire numbering system described in Paragraph 34 configuration using TID wire 176. is activated when fluid the. Tcm corrects the original complaint, reinstall the original complaint, reinstall the original to! Pto installation is necessary in troubleshooting installation-related problems functional until transmission sump temperatures are between 40150C ( 105302F.! Should be information from Muncie and More a PTO installation is necessary in troubleshooting problems. Any harness connectors are clean and connected correctly, determine which wires in the manner recommended percent reverse.