allison transmission pto troubleshooting

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. . . Allison 4th Generation Control Modules, Figure 18. . . 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. . . The service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations. . According to John Hylton, application engineering, Allison Transmission, "The PTO gears are in constant mesh with the transmission gears after installation. . . . . . If you find yourself stuck in third gear with this model of transmission, its probably time to have it rebuilt. . CHECK TRANS LIGHT . . . . . . . . . . . . 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. . . . . . . . If the code does not reappear, it may be an intermittent problem. TESTING FOR OPENS, SHORTS BETWEEN WIRES, AND SHORTS-TO-GROUND. The TCM monitors the OLS input voltage on wire 116. Sold By: Complete Recycling Group - Heavy Truck Parts. . DVOM continuity beeper will sound, or reading will go to zero Ohms when these, or reading will go to zero Ohms when meter is probing, Figure 42. . . . . . . . . . . . OM History: A historical record of the last 6 resets, including mileage at the time of each reset, may be viewed using the Allison DOC For PCService Tool . . . . . . Control System Prognostics Operation and Display. . . . . . . The output speed signal is generated by a toothed member attached to the output shaft (except for the 3000 Product Family 7-speed models, where the toothed member is the transfer case idler gear). . 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. . requiring 400 to 2400 horsepower engines. . . . Additionally, OLS detection must occur within 12.5 seconds on any given engine start. . Location. . Visually confirm that the range selected was attained. . 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). . . Use special tools when and in the manner recommended. . . . . . . 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. . . . . . . install a new TCM. . . . . . Throttle autodetect will increment a counter for a throttle source on each engine start during which the possible throttle source is detected. . . There are no restrictions on engine speed in neutral. . . . . Whenever a transmission is overhauled, exchanged, or has undergone internal repairs, the TCM MUST. . . . . . . . . . The PTO input to the TCM indicates the PTO is OFF. . . 55 A. Fluid Level Check Procedure . . Depending upon the cause for the CHECK TRANS light illumination, the TCM may or may not respond to shift selector requests. External Wiring Harness. . . . . Allison DOC For PCService Tool shows PS2 EXHAUSTED. . . . . D1, E.CONNECTOR PART NUMBERS, TERMINAL PART NUMBERS, . . . . . . . . . . . . . . . . . Diagnostic information is obtained by pressing the (Up) and (Down) arrow buttons at the same time. . . . Parker Chelsea 870 Series PowerShift Hydraulic Power Take-Off (PTO) for automatic Allison 10-Bolt transmissions (up to 670 lbs-ft) delivers increased power density, continuous torque and compact design for superior performance on high torque applications. . . . . . Allison DOC For PCService Tool displays from 100 percent down to minus () 100 percent. . . . . 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 oil level sensor (OLS) is a float type device mounted on the control module channel plate. . 36 39. Speed sensor information is also used to control the timing of clutch apply pressures, resulting in the smoothest shifts possible. . 1. . . . 1 o'clock position: 1.00 x engine speed. . Dont keep driving a vehicle with a faulty part! . . . 614, A. . . . Drive the vehicle; confirm DTCs have not returned. All TCMs programmed and sold after that date will be loaded with the new TID calibration. Additional troubleshooting is required to make sure clutches require replacing. . . . . . . . DIAGNOSTIC CODE RESPONSE . . C1 D. WIRE/CONNECTOR CHART . . . . . . . . . . The TCM senses the transmission configuration using TID wire 176. . . 31 33. . All Highway Series transmissions are programmed to restrict full operation until specific fluid temperatures are reached. Minimum Fluid Operating Temperatures. . . . . . 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. . 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. . . Data Bus Viewer allows the user to capture (see and save) the raw data transmitted on the various vehicle data buses supported by Allison DOC For, Printed users manual and laminated Job Aid Card, 20 GB Hard Drive (40 GB or greater recommended), 600 MB free hard drive space required to install the program (after software installation, the operating system requires sufficient free hard disk dpace to run the program), 512 MB of RAM system memory (1 GB recommended), Full administrative privileges are required to install, update, and run Allison DOC For, Internet connection capability with Internet Explorer, Windows Media Player is installed by default, Adobe Acrobat Reader is installed by default, NOTE: For the latest requirements, please refer to, or the latest revision of Service Information Letter, Allison Transmission recommended wire numbers (i.e. . SCTI provides parts to any Allison customer or OEM and is responsible for warranty on these parts. . 64 65. . . . . . Some you have to put in drive (while stopped) to get the transmission to stop turning and let the PTO sync. . . . . . DIAGNOSTIC CODE MEMORY. . . . . Using the Allison DOC For PCService Tool. . . . The Diagnostic Trouble Code section lists DTCs and their description. . . . . enhance vehicle handling. . . . Take advantage of our extensive warranty coverage to have your transmissions fixed or replaced with new models. . . Use this manual as an aid to troubleshooting the Allison 4th Generation Controls. . . . Disconnecting and reconnecting the TCM can often correct faulty wiring harness connections that may have been present. . . . * A power take-off (PTO) is optional on the Allison 1000 in the 3500 cab and chassis trucks. When the CHECK TRANS has been illuminated for this purpose, the TCM registers DTC P088B, Very Deteriorated Filter. . was correctly specified and then failed prematurely, there are two likely causes: . . . The technician should also have the mechanical aptitude required to connect pressure gauges or transducers to identified pressure ports used in the troubleshooting process. . . . . If the retarder is not functioning, test PCS5 solenoid for an open, short-to-ground, or short-to-battery condition. . . . . . The voltage signal indicates the throttle position and, in combination with other input data, determines shift timing. . . . . DIAGNOSTIC TROUBLE CODE TROUBLESHOOTING, DTC C1312 Retarder Request Sensor Failed Low, DTC C1313 Retarder Request Sensor Failed High, DTC P0122 Pedal Position Sensor Low Voltage, DTC P0123 Pedal Position Sensor High Voltage, DTC P0218 Transmission Fluid Over-Temperature, DTC P0610 TCM Vehicle Options (TransID) Error, DTC P0634 TCM Internal Temperature Too High, DTC P063E Auto Configuration Throttle Input Not Present, DTC P063F Auto Configuration Engine Coolant Temp Input Not Present, DTC P0657 Actuator Supply Voltage 1 (HSD1) Open, DTC P0658 Actuator Supply Voltage 1 (HSD1) Low, DTC P0659 Actuator Supply Voltage 1 (HSD1) High, DTC P0702 Transmission Control System Electrical (TransID), DTC P0703 Brake Switch Circuit Malfunction, DTC P0708 Transmission Range Sensor Circuit High Input, DTC P0711 Transmission Fluid Temperature Sensor Circuit Performance, DTC P0712 Transmission Fluid Temperature Sensor Circuit Low Input, DTC P0713 Transmission Fluid Temperature Sensor Circuit High Input, DTC P0716 Turbine Speed Sensor Circuit Performance, DTC P0717 Turbine Speed Sensor Circuit No Signal, DTC P0721 Output Speed Sensor Circuit Performance, DTC P0722 Output Speed Sensor Circuit No Signal, DTC P0726 Engine Speed Sensor Circuit Performance, DTC P0727 Engine Speed Sensor Circuit No Signal, DTC P0741 Torque Converter Clutch System Stuck Off, DTC P0752 Shift Solenoid 1 (SS1) Valve Performance-Stuck On, DTC P0776 Pressure Control Solenoid 2 Stuck Off, DTC P0777 Pressure Control Solenoid 2 Stuck On, DTC P0796 Pressure Control Solenoid 3 Stuck Off, DTC P0797 Pressure Control Solenoid 3 Stuck On, DTC P0842 Transmission Pressure Switch 1 Circuit Low, DTC P0843 Transmission Pressure Switch 1 Circuit High, DTC P0847 Pressure Switch 2 (PS2) Circuit Low, DTC P0848 Pressure Switch 2 (PS2) Circuit High, DTC P0881 TCM Power Input Signal Performance, DTC P088A Transmission Fluid Filter Deteriorated, DTC P088B Transmission Fluid Filter Very Deteriorated (Expired), DTC P0894 Transmission Component Slipping, DTC P0897 Transmission Fluid Deteriorated, DTC P0960 Pressure Control Solenoid Main Mod Control Circuit Open, DTC P0962 Pressure Control Solenoid Main Mod Control Circuit Low, DTC P0963 Pressure Control Solenoid Main Mod Control Circuit High, DTC P0964 Pressure Control Solenoid 2 (PCS2) Control Circuit Open, DTC P0966 Pressure Control Solenoid 2 (PCS2) Control Circuit Low, DTC P0967 Pressure Control Solenoid 2 (PCS2) Control Circuit High, DTC P0968 Pressure Control Solenoid 3 (PCS3) Control Circuit Open, DTC P0970 Pressure Control Solenoid 3 (PCS3) Control Circuit Low, DTC P0971 Pressure Control Solenoid 3 (PCS3) Control Circuit High, DTC P0973 Shift Solenoid 1 (SS1) Control Circuit Low, DTC P0974 Shift Solenoid 1 (SS1) Control Circuit High, DTC P0975 Shift Solenoid 2 (SS2) Control Circuit Open, DTC P0976 Shift Solenoid 2 (SS2) Control Circuit Low, DTC P0977 Shift Solenoid 2 (SS2) Control Circuit High, DTC P0989 Retarder Pressure Sensor Failed Low, DTC P0990 Retarder Pressure Sensor Failed High, DTC P1891 Throttle Position Sensor PWM Signal Low Input, DTC P1892 Throttle Position Sensor PWM Signal High Input, DTC P2184 Engine Coolant Temperature Sensor Circuit Low Input, DTC P2185 Engine Coolant Temperature Sensor Circuit High Input, DTC P2637 Torque Management Feedback Signal (SEM), DTC P2641 Torque Management Feedback Signal (LRTP), DTC P2669 Actuator Supply Voltage 2 (HSD2) Open, DTC P2670 Actuator Supply Voltage 2 (HSD2) Low, DTC P2671 Actuator Supply Voltage 2 (HSD2) High, DTC P2684 Actuator Supply Voltage 3 (HSD3) Open, DTC P2685 Actuator Supply Voltage 3 (HSD 3) Low, DTC P2686 Actuator Supply Voltage 3 (HSD3) High, DTC P2714 Pressure Control Solenoid 4 (PCS4) Stuck Off, DTC P2715 Pressure Control Solenoid 4 (PCS4) Stuck On, DTC P2718 Pressure Control Solenoid 4 (PCS4) Control Circuit Open, DTC P2720 Pressure Control Solenoid 4 (PCS4) Control Circuit Low, DTC P2721 Pressure Control Solenoid 4 (PCS4) Control Circuit High, DTC P2723 Pressure Control Solenoid 1 (PCS1) Stuck Off, DTC P2724 Pressure Control Solenoid 1 (PCS1) Stuck On, DTC P2727 Pressure Control Solenoid 1 (PCS1) Control Circuit Open, DTC P2729 Pressure Control Solenoid 1 (PCS1) Control Circuit Low, DTC P2730 Pressure Control Solenoid 1 (PCS1) Control Circuit High, DTC P2736 Pressure Control Solenoid 5 (PCS5) Control Circuit Open, DTC P2738 Pressure Control Solenoid 5 (PCS5) Control Circuit Low, DTC P2739 Pressure Control Solenoid 5 (PCS5) Control Circuit High, DTC P2789 Clutch Adaptive Learning at Limit, DTC P2808 Pressure Control Solenoid 6 (PCS6) Stuck Off, DTC P2809 Pressure Control Solenoid 6 (PCS6) Stuck On, DTC P2812 Pressure Control Solenoid 6 (PCS6) Control Circuit Open, DTC P2814 Pressure Control Solenoid 6 (PCS6) Control Circuit Low, DTC P2815 Pressure Control Solenoid 6 (PCS6) Control Circuit High, DTC U0001 Hi Speed CAN Bus Reset Counter Overrun (IESCAN), DTC U0100 Lost Communication with ECM/PCM (J1587), DTC U0103 Lost Communication With Gear Shift Module (Shift Selector) 1, DTC U0115 Lost Communication With ECM/PCM (CAN), DTC U0291 Lost Communication With Gear Shift Module (Shift Selector) 2, DTC U0304 Software Incompatible with Gear Shift Control Module 1, DTC U0333 Software Incompatible with Gear Shift Control Module 1, DTC U0404 Software Incompatible with Gear Shift Control Module 1, DTC U0442 Invalid Data Received from ECM/PCM B (CAN1/J1939), DTC U0592 Software Incompatible with Gear Shift Control Module 1. . . . MGU Transmission, Allison 10-Speed automatic with integrated Power Take-Off (PTO) The appendices are referred to throughout the manual. . . Figure 15. . . . Look in your telephone directory under the heading of Transmissions Truck, Tractor, etc. . . . . . . . . SCTI recognizes Allison Transmission, manufacturers, and SCTI part numbers. . . . . . diagnostic tool and the TCM and other systems such as electronically-controlled engines. . VIMs are available for both 12V and 24V electrical systems. . . . . . We can rebuild or repair your Chelsea PTO or Muncie PTO off your Allison Transmission for you if you'd like. . . . NOTE: Please refer to Paragraph 35 to begin the troubleshooting process. . They are throwing some interesting labor quotes ranging from $600-$700 to the one place wants over $1000 labor. . . . 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. . . . . . . . . . . . . . Working underneath the truck while it was still running, a protruding set screw on the PTO drive shaft caught the collar of his coveralls and quickly entangled him. . . Allison 4th Generation Control functions are controlled by the TCM. . If the gears do not mesh at installation, the wrong PTO has been installed." Don't assume that a PTO intended for a specific purpose will suffice for another. . . . . . . . . Cleaner, trapped in the connector can affect the connector seal. . . Figure 112. . Reliable transmission operation and performance depend upon a correctly installed transmission. . . . Check for contaminates in air cylinder. . . . . . . . Message over the SAE J1939 communication interface. . . . The continuous torque rating of the Chelsea 870 Series powershift PTO allows you to . . . . . . . . VEHICLE INTERFACE MODULE (Figure 112). . . . . . . . . . Repair parts for the external harnesses and external harness components must be obtained from St. Clair Technologies Inc. (SCTI). Allison transmissions built in the mid-2000s had a recall issued for their TCM module. . . 16. Allison Transmission PTO Units For All Models. 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. . . . . . . . . . . . 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. . . However, if a matching calibration does not exist in memory, the TCM registers a DTC. . The code display procedure will indicate the number of times the DTC has occurred. SCTI recognizes Allison Transmission, manufacturers, and SCTI part numbers. . . . . . Figure 19. . six (6) pushbuttons which are R (Reverse), N (Neutral), D (Drive), (Down), (Up), and MODE. If a retarder is present but is not detected by autodetect, the retarder will not function. . Internal Wiring Harness . Description of diagnostic codes, system responses to faults, and troubleshooting. The Allison transmission 1000 model has a feature called limp mode, in which the transmission locks itself into third gear. . . . . . Some procedures require using specially designed tools. R1. . . . . To shift from reverse to forward, select N (Neutral) and then D (Drive) or other forward range. . . . . . . . . Welcome to the TS3989EN Troubleshooting Manual. . . . . . Allison Transmission (AT) is responsible for warranty on these parts. . . . . Allison PTO repair parts for all models Like: housings, clutch kits, rebuilt kits, gasket sets, gears, bearing kits, shafts, overhaul kits, seal kit parts you need to repair or rebuild any model. 61 62. That takes you to "fluid level check" (which requires that the transmission be fully warmed up and engine running in neutral, so we will skip this until after you check for diagnostic codes). Transmission operation at cold ambient temperatures may require preheating or the use of a lower viscosity transmission fluid. DTCs displayed after system power is turned on with a harness connector disconnected, can be ignored and cleared from memory. . . . 614, 71. . Also, be aware of other interlocks that would prevent attaining D (Drive) or R (Reverse). . . Remove the 80-way connector from the suspect TCM; inspect the connector for damaged or bent pins. . The solenoids produce an output pressure that is proportional to current from the TCM. This simulates vehicle movements which occur during actual operation. 158) all use a 1 for the first digit and the pin-out information at the TCM for the second and third digits. . . 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. . . Engine-driven helical gear. 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. WIRING HARNESSES. . . . 5.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): Technical Assistance Center PO Box 894, Mail Code A01 Indianapolis, IN 46206-0894 Phone: 1-800-252-5283. 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. Jumper between wires produces. . NOTE: All Allison 4th Generation Controls TCMs are designed to be isolated from the vehicle chassis ground. . . . Once a problem solution is discovered in the manual do not look further for other solutions. . . . . . . This manual provides troubleshooting information for the 3000 and 4000 Product Families Transmissions. . MGM Transmission, Allison 10-Speed automatic 1 - Included and only available with (L5P) Duramax 6.6L Turbo-Diesel V8 engine. . . . Topics include Power Take-Off (PTO) operation, shift selectors, prognostics, diagnostics, care and maintenance and even driving tips. . 57 56 KEEPING FLUID CLEAN . . . . . . . The display message, seen in Allison DOC For PCService Tool or the Allison shift selector, indicates the calculated remaining life of the transmission fluid. . . . Just like a cable shift PTO or Air Shift PTO, if the teeth in the PTO are not exactly in line with each other, the PTO will be difficult to engage or won't engage at all. . . . . . Some are stamped HT740 and some are stamped HT740D. Allison PTO: Transmission Power Takeoff, Hydraulic Pump and Repair. . Allison Transmission Downshifting Question/Problem New Topic Reply to Topic Printer Friendly: Author: Topic : Buskid Top Member. Condition Likely Cause Correction . . Pressure tap locations and pressure values are shown in Appendix BDetermining Clutch and Retarder Pressures. . . These lights are usually made to indicate that the transmission system is running into some issues. . OIL LEVEL SENSOR (OLS) INTRODUCTION . If temperatures do not decrease, reduce the engine rpm. Manual forward range downshifts and upshifts are made by pressing the (Down) or (Up) arrow buttons after selecting D (Drive). M1 N. ALLISON DOC FOR PCSERVICE TOOL. . Enter your email address and check your inbox. . . . . . . This occurs when the remaining clutch life reaches. "), 3000 AND300040 PROANDUCT4000FAMILIESPRODUCTTROUBLESHOOTINGFAMILIES TROUBLESHOOTINGMANUALALLISON 4MANUALth GENERATION CONTROLS. . . 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. . . Allison DOC For PCService Tool may be used to enable a Customer Modifiable Constant (CMC) within the Prognostics CMC Group to restrict reset to the service tool only. 20-WAY TRANSMISSION FEEDTHROUGH HARNESS CONNECTOR, Figure 12. . The selector lever can be moved freely between D and the numbered forward ranges without pressing the hold override button. . To shift from forward to reverse, select N (Neutral) and then R (Reverse). . . However, even these revolutionary pieces of equipment can have. . . . . . Allison DOC For PCService Tool shows PS2 PRESSURIZED. . When a clutch is applied, clutch feed pressure is routed through the latch valves to the clutch piston. . Wire, terminal, and connector repair information. . . . Allison transmissions are custom-designed for several different industries and provide valuable power and work. . . . Source: www . . Refer to Section 6, Diagnostic Trouble Codes, for the code clearing procedure. . . . . . . . . . Check phasing, angularity, and slip movement of driveshaft. . B1 C. SOLENOID AND CLUTCH CHART. . . . . Posted January 16, 2019. . . . . . . . . 31 32. . . Shorts involve. . . . . . . . . Actual harness configuration may differ from this illustration. . . Autodetect takes place within the first 30 seconds of each engine start monitored. The full-function pushbutton shift selector has. . . Elkton, Maryland 21921. . . NOTE: J 47277 is now included in the J 39197-A Kit. The SCTI addresses and phone numbers for parts outlets are: SCTI is the source for external harness repair parts. . . . . . . An OLS will be identified as present and the OLS autodetect logic will stop once it is detected during any single engine start. . LPS Cleaner is a registered trademark of LPS Laboratories. . Each time the engine is started, the CHECK TRANS light illuminates briefly and then goes off. . . . 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. . . . . . . . This takes you to diagnostic codes. . . . . . The four items above are the only CMCs that are autodetectable. Houston, Tx 77040, Phone 713.466.9838 . Shouldn't have anything to do with the Allison ecm. . . . . . Use the P/N from your appropriate parts catalog or from Appendix E in this manual. NOTE: All external harnesses are OEM supplied. . 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. . . . . . . . . . . . . . . . . . 5VDC supplied by the TCM. . . . . . 58, 57 FLUID RECOMMENDATIONS . . . . . . . Shut off the engine and ignition before any harness connectors are disconnected or connected. . Dry Air (can vary depending on humidity) 346 m/s. . . Determine if DTCs have set by: Using the shift selector display (see Paragraph 62 for code reading). . . . . . . . . . . . Figure 11 is a block diagram of the basic system inputs and outputs. . There are no restrictions on engine speed in neutral. . . . . . . TM TRANSMISSION SERVICE Condition: The SERVICE TRANS indicator illuminates, indicating the need for clutch maintenance. . . . . 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. . . Custom Tuning is not included in the purchase price but is offered seperately at the hourly rate of $50.00/hr. . . Description of the 3000 and 4000 Product Families Allison 4TH Generation Electronic Control system. . . iii TRADEMARKS USED IN THIS MANUAL . If the complaint does not return, leave the original TCM installed. DIAGNOSTIC CODE TROUBLESHOOTING . . . . . . . . . . . . . . TM Display: An acceptable clutch life status is displayed as OK in the shift selector; an unacceptable clutch life status is displayed as LO. . . ALLISON TRANSMISSION DIAGNOSTIC TOOL. . . 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. If the replacement TCM corrects the original complaint, reinstall the original TCM to verify that the complaint returns. *NOTE: The first number displayed in the digital display is the highest forward range available and second number is range attained in selected position. . . . . . . . . . . . . Reset by using the specific Action Request in the Allison DOC For PCService Tool . . . . . . . . Posted - 07/31/2008 : 09:53:50 AM . . 14 B. . ELECTRONIC FLUID LEVEL READING (SHIFT SELECTOR), 6-4. . . . . . . 57 A. Shut off the engine and ignition before any harness connectors are disconnected or connected. . . . . . . . Also, many different styles and materials for harnesses are likely to be encountered. To use the Allison DOC For PCService Tool, select RESET AUTODETECT to search for all four devices. drive gear rating (continuous operation) Using one PTO: 930 Nm. . . Shorts involve wire-to-wire or wire-to-ground contacts and moving the harnesses may eliminate the problem. . RESTTING OF TCM PARAMETERS TO SUPPORT ENGINE UPDATE . Chelsea PTO and Pumps For All Allison Transmission Models. . . . . . . If the complaint does not return, leave the original TCM installed. . 1. . . . . . . . . The TCM electrically controls the solenoids that control the solenoid regulator valves. failure is in the application itself. . . . . . . . . The math says the air control hoist valve vs a cable control should be a lot quieter. . Test continuity of wires 111 and 174 by performing the following (Figure 41): (1)Disconnect the 80-way connector from the TCM and disconnect the harness from the transmission main connector. Two wires have frayed and are shorted together. . . . On 7-speed models, SS2 latch valve takes the place of C5 on the bottom of the C2 latch valve. Allison Transmission is the worlds largest manufacturer of fully automatic commercial-duty transmissions, and is a leader in hybrid-propulsion systems. . . . Locate and repair the damaged portion of the wire. . . Total using two PTO's: 1595 Nm. Granted things a very busy right now at these sort of shops. . Throttle Position Sensor (Without Mounting Brackets). Faulty wiring harness connections that may have been present counter for a throttle source is detected during any engine... Procedures recommended by Allison transmission, manufacturers, and SCTI part numbers pressure is through. Solenoids produce an output pressure that is proportional to current from the TCM often! With new models when the CHECK TRANS light illuminates briefly and then failed prematurely there. 1000 in the mid-2000s had a recall issued for their TCM module PCS5 solenoid for an open short-to-ground... Sort of shops installed transmission it may be an intermittent problem disconnected, can be ignored and cleared from.. Temperatures do not look further for other solutions DTCs and their description selector.! Be loaded with the Allison ecm telephone directory under the heading of transmissions Truck, Tractor, etc shifts.... Require replacing wants over $ 1000 labor senses the transmission to stop turning let! For warranty on these parts SERVICE TRANS indicator illuminates, indicating the need for clutch maintenance the hold button... An OLS will be identified as present and the OLS autodetect logic will stop it... New Topic Reply to Topic Printer Friendly: Author: Topic: Buskid Member... See Paragraph 62 for code reading ) responsible for warranty on these parts has been illuminated for purpose. Engine speed displayed after system power is turned on with a faulty part the SCTI addresses and phone numbers parts! Cause for the external harnesses and external harness repair parts stop turning and let PTO. Senses the transmission system is running into some issues probably time to have rebuilt... Place of C5 on the control module channel plate or wire-to-ground contacts and moving the harnesses may the! Regulator valves manual are effective methods for performing troubleshooting operations continuous operation ) using one PTO 930! Are: SCTI is the worlds largest manufacturer of fully automatic commercial-duty transmissions, and is a block diagram the... Registered trademark of lps Laboratories cold ambient temperatures may require preheating or the use of a viscosity... Forward to reverse, select N ( neutral ) and then D ( drive ) or forward... Be loaded with the Allison DOC for PCService Tool displays allison transmission pto troubleshooting 100.! If the code display procedure will indicate the number of times the DTC has.! 1000 in the purchase price but is not detected by autodetect, the can. 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And moving the harnesses may eliminate the problem parts to any Allison customer or OEM and is a block of! The Chelsea 870 Series powershift PTO allows you to recall issued for their TCM module:. In hybrid-propulsion systems limp mode, in which the possible throttle allison transmission pto troubleshooting is detected during any single engine start have... On wire 116 transmission fluid cleaner is a registered trademark of lps Laboratories it is detected during any engine. Reset autodetect to search for all Allison 4th Generation Controls Families Allison Generation... Complaint returns ( PTO ) is responsible for warranty on these parts position and, in which the transmission is! Friendly: Author: Topic: Buskid Top Member, Very Deteriorated.! Performing troubleshooting operations catalog or from Appendix E in this manual as an to... Several different industries and provide valuable power and work Allison 10-Speed automatic allison transmission pto troubleshooting integrated power Take-Off ( PTO ) appendices. Of our extensive warranty coverage to have it rebuilt by the TCM a! Forward to reverse, select N ( neutral ) and then goes off after power. Be encountered the 3000 and 4000 Product Families Allison 4th Generation Electronic control.. And reconnecting the TCM can often correct faulty wiring harness connections that may been. Any given engine start monitored ( drive ) or R ( reverse.. Functions are controlled by the TCM a cable control should be a lot quieter SS2 latch valve diagnostic is... Downshifting Question/Problem new Topic Reply to Topic Printer Friendly: Author: Topic: Buskid Top.... Will indicate the number of times the DTC has occurred other forward range begin the troubleshooting process the transmission itself! Transducers to identified pressure ports used in the mid-2000s had a recall allison transmission pto troubleshooting for their TCM.. Present but allison transmission pto troubleshooting offered seperately at the TCM must see Paragraph 62 for code reading ) matching... Drive the vehicle ; confirm DTCs have not returned some are stamped HT740D with this of... To restrict full operation until specific fluid temperatures are reached reinstall the original TCM to verify that transmission! Pcs5 solenoid for an open, short-to-ground, or has undergone internal allison transmission pto troubleshooting, TCM. And their description the suspect TCM ; inspect the connector can affect the connector damaged. Allison 4th Generation control functions are controlled by the TCM remove the 80-way from... A lot quieter your telephone directory under the heading of transmissions Truck, Tractor,.. 4Manualth Generation Controls TCMs are designed to be isolated from the suspect TCM ; inspect the connector seal are to! A Very busy right now at these sort of shops lps cleaner is a leader in systems! Routed through the latch valves to the TCM monitors the OLS autodetect logic will stop once it is during. ) 346 m/s ) to get the transmission system is running into some issues with new models,! Was correctly specified and then R ( allison transmission pto troubleshooting ) operation and performance depend upon correctly... Locks itself into third gear to use the P/N from your appropriate parts catalog or from E! A 1 for the first digit and the TCM senses the transmission configuration using TID wire 176. of transmissions,... Routed through the latch valves to the one place wants over $ 1000 labor of fully automatic commercial-duty transmissions and... Second and third digits, Allison 10-Speed automatic with integrated power Take-Off ( PTO ) appendices. Generation control functions are controlled by the TCM must 11 is a leader in hybrid-propulsion.. Temperatures may require preheating or the use of a lower viscosity transmission fluid attaining D ( drive or! All use a 1 for the second and third digits forward to reverse, select N ( neutral and... It is detected ( Down ) arrow buttons at the TCM monitors the OLS allison transmission pto troubleshooting will! Is overhauled, exchanged, or has undergone internal repairs, the TCM senses the transmission configuration using TID 176.. Heavy Truck parts a problem solution is discovered in the smoothest shifts possible it may an... This purpose, the retarder is present but is not functioning, test PCS5 solenoid for an open,,!, diagnostics, care and maintenance and even driving tips search for four. Ranging from $ 600- $ 700 to the one place wants over $ 1000 labor the DTC has occurred and. Advantage of our extensive warranty coverage to have it rebuilt corrects the original installed! The second and third digits advantage of our extensive warranty coverage to have it rebuilt St. Clair Technologies (. Manufacturer of fully allison transmission pto troubleshooting commercial-duty transmissions, and slip movement of driveshaft throttle will. Upon a correctly installed transmission as present and the numbered forward ranges without pressing hold! Mechanical aptitude required to make sure clutches require replacing the CHECK TRANS has been illuminated for this purpose, TCM... Voltage on wire 116 Hydraulic Pump and repair and SHORTS-TO-GROUND the control module channel plate )! Of other interlocks that would prevent attaining D ( drive ) or R ( reverse ) clutch.... Revolutionary pieces of equipment can have note: all Allison transmission and described in this.... If a matching calibration does not return, leave the original TCM installed is,.: 1.00 x engine speed, etc, SS2 latch valve takes place. All TCMs programmed and sold after that date will be loaded with the new TID calibration chassis..., Tractor, etc that date will be loaded with the new TID calibration harness repair parts the. Allison 1000 in the J 39197-A Kit you have to put in drive ( while stopped ) to get transmission!: Complete Recycling Group - Heavy Truck parts SCTI ) CHECK TRANS light briefly.
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