allison transmission pto troubleshooting

. . . . . TM Reset: This feature resets itself automatically after maintenance/repair is done to correct the condition that caused the warning for excessive clutch clearance. . . Use special tools when and in the manner recommended. . . . . DIAGNOSTIC CODE LIST AND DESCRIPTION . b.If the continuity test is good (02 Ohms resistance), remove the jumpers. 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). The electronic control of the transmission is performed by a microcomputer. . . . . . . . . . . . Refer to the Table 31 for temperature restrictions. . This wiring configuration is designated TID A. 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. . . . . . . . Page 1 TS2470EN Troubleshooting Manual Allison Transmission MD/HD/B Series Transmissions WTEC II Controls (Pre-TransID and TID 1) MD 3060/MD 3066/MD 3560 (P) (R) MD 3070PT HD 4060/HD 4560 (P) (R) B 300/B 400/ B 500 (P) (R) May 1998 Revision 1, 199910 Division of General Motors Corporation P.O. . . Most troubleshooting tests consist of determining resistance, continuity, and testing for shorts between wires and to ground. . . . . . . Welcome to the TS3989EN Troubleshooting Manual. 16. . . . Once that shift has been retried, and a fault is still detected, the TCM sets a DTC and holds the transmission in a fail-to-range mode of operation. Muncie offers PTO and hydraulic pump combinations for Allison truck transmission models. Welcome to the TS3989EN Troubleshooting Manual. . . ABBREVIATIONS . . . . . . COLD CHECK. 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. . . SCTI recognizes Allison Transmission, manufacturers, and SCTI part numbers. . . . . . . . . Shorts involve wire-to-wire or wire-to-ground contacts and moving the harnesses may eliminate the problem. . . . . Additionally, OLS detection must occur within 12.5 seconds on any given engine start. . . . . . . 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. . . . . . . . . . . . These warnings and cautions are not exhaustive. . . . Display the Oil Life Monitor information and press and hold the MODE button of the Allison shift selector for 10 seconds. . install a new TCM. . . . . . . . . . . 112 B. . These lights are usually made to indicate that the transmission system is running into some issues. . Do this for both wires in the circuit being tested. . . . . . The sensor operates on. . . . . . . Visually confirm that the range selected was attained. A list of all documents refer-enced in this document can be found at the end of this document. . . . . . Replace PTO housing, gears. Appendix A deals with the identification of potential circuit problems. . . . NOTE: Turn off the vehicle HIGH IDLE switch, if present, before shifting from N (Neutral) to D (Drive). . . . . . . . . . SHIFT SELECTOR DISPLAYS RELATED TO ACTIVE CODES . . . . . . . . The system that enables the transmission to default to totally hydraulic operation has been incorporated to minimize the impact of an electrical interruption. . . . . 118, 110. . After the OLS circuit is repaired, reset autodetect or manually select the OLS function using the Allison DOC For PCService Tool. . Whenever a transmission is overhauled, exchanged, or has undergone internal repairs, the TCM MUST. . . I know, the Allison HT-740 Series is a bit out-dated and old school, but with some Crowns still running down the road with them, I come across one now and again. (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. 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. Filter Life Valve Hydraulic Schematic. . Output speed is less than 250 rpm in neutral, reverse, low (7-speed), first, or second range. Seek service assistance as soon as possible. . . . . . . . . . . . . . NOTE: Please refer to Paragraph 35 to begin the troubleshooting process. . Some you have to put in drive (while stopped) to get the transmission to stop turning and let the PTO sync. NOTE: Information concerning specific items is contained in the appendices located in the back of this manual. . . . . . . . . . . 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. . . . SCTI provides parts to any Allison customer or OEM and is responsible for warranty on these parts. . . . . The appendices are referred to throughout the manual. . . . . 56 B. . . . . . . Location: Logan Indiana (Near Cincinnati Ohio) Posts: 751. . . . Refer to SIL 17-TR-94, latest. . . . . Always blow or shake any excess cleaner from, the connector before assembling it to its mating connector or hardware. . If the problem recurs, proceed with Step (4). . . Once a problem solution is discovered in the manual do not look further for other solutions. . . . distort the socket terminals inside the connectors and cause them to lose the necessary tension to maintain firm contact. . . With the ignition ON and the engine OFF, shift between, Display the Oil Life Monitor information and press and hold the, Reset by using the specific Action Request in the Allison DOC For, Display the Filter Life Monitor information and press and hold the, Operation of Filter Life Valve and Pressure Switch (PS2), User selected views of multiple transmission parameters, Active and historical diagnostic trouble codes (DTCs), Graphical instrument panel view of transmission parameters, Reprogramming capability (available after satisfying Allison Transmission training certification requirements), Demo Mode which allows the user to practice the program without being connected to a vehicle. The Allison Transmission 9000 Series is designed for extreme operating conditions in highly demanding applications up to 1,939 kW (2,600 hp). The Filter Life Valve strokes because of the higher main pressure (before the filter). . . The Diagnostic Trouble Code section lists DTCs and their description. CONTROL MODULE. . . . . . . Wiring Diagram: Standard "H" Shift Option Model Years Standard.Muncie Power Products is a leading manufacturer of power take-offs (PTO), hydraulic components such as pumps, motors, cylinders, valves and reservoirs, and snow & ice removal products. . . . . . . . . . Transmission Ranges D (Drive), N (Neutral), R (Reverse), 1 (First), 2 (Second), etc. and ask about the replacement process. 118 111. Allison 4th Generation Internal Wiring Harness with Prognostics, 18. . . . . 117 D. Engine Coolant Temperature . Service Manuals SM4013EN and SM4014EN, plus Parts Catalogs PC2150EN and PC2456EN may be used in conjunction with this manual. . . .ii IMPORTANT SAFETY NOTICE . . . . . . . . . . An Over View on Allison Automatic Transmission Wiring We didn't experience the New World Transmissions from Allison until 1995. . . Use the Allison DOC For PC Service Tool and the code display procedure described in Section 6. . . . . Allison transmissions built in the mid-2000s had a recall issued for their TCM module. . . . . Vehicle Electrification + Environmental Test Center, Allison Transmission Collaborates with Nikola to Drive Next-Generation Vehicle Development at Allisons Vehicle Electrification + Environmental Test Center. All Rights Reserved. . If necessary, the indicator can be manually reset using the Allison DOC For PCService Tool diagnostics program. . . The technician should be able to use jumper wires and breakout harnesses and connectors. Each time the engine is started, the CHECK TRANS light illuminates briefly and then goes off. . . . . 11 12. . . . . . . Look in your telephone directory under the heading of Transmissions Truck, Tractor, etc. . 17 16. Terminals may have been bent or lost the necessary tension to maintain firm contact. . . Clear any DTCs that may be present and test drive the vehicle to confirm the repair. . J1 K. SOLENOID RESISTANCE CHARTS . Figure 21. The Diagnostic Trouble Code section lists DTCs and their description. . Windows Media Player is installed by default, Adobe Acrobat Reader is installed by default. . 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. . . Failure to do so may. . If the replacement TCM corrects the original complaint, reinstall the original TCM to verify that the complaint returns. . The VIM for 24V systems has all 24V relays. . 18 17. Use the Allison DOCFor PCService Tool to verify the current calibration information number (CIN) and record or print a report of the current customer modifiable constants (CMC) information for later reference. Replace the TCM with a known, good TCM from a similar vehicle. . . The engine speed signal is generated by ribs on the shell of the torque converter pump. . . . . . iii WARNINGS, CAUTIONS, AND NOTES . . . . . . . . Re-install shift cover. Terminal Remover (80-way connector) GM P/N: 12094429, J 47139 (Former) 63811-6000 (Current) Crimper. . . . . . . . Dont keep driving a vehicle with a faulty part! . . . The VIM for 12V systems uses all 12V relays. . . NOTE: Error messages, sudden disconnections, and poor performance are some of the results users will experience if Allison DOC For PC-Service Tool V7.x.x is installed on PCs that do not meet one or more of the above specifications. . . . If the P.T.O. . During the entire autodetect period, the software will use the highest priority source as the throttle source if multiple sources are detected before any confidence flags are set. . . SCTI recognizes Allison Transmission, manufacturers, and SCTI part numbers. . Disconnecting and reconnecting the TCM can often correct faulty wiring harness connections that may have been present. . . . . This should reduce the transmission and engine temperature to normal operating levels in two to three minutes. . . . Internal Wiring Harness . . . . . . Remember that some problems may be temperature related. . . . . . NOTE: All Allison 4th Generation Controls TCMs are designed to be isolated from the vehicle chassis ground. . . USA 3368 Posts. . . . . . . . Houston, Tx 77040, Phone 713.466.9838 . to stay up-to-date on the latest in Allison transmission technology and maintenance advice. . . 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. Copyright 2008 Allison Transmission, Inc. P.O. * Some transmissions used in oil field service default to neutral, 41. . . . The TCM receives and processes information defining: Each TCM has a date code laser etched on the outer case of the TCM. . . . However, this manual does provide a starting point from which most problems can be resolved. . . . . . Is used when an operating procedure, practice, etc., which, if not strictly observed. . . . . . . . . Shift Energy Management (SEM) Autoselect feature may be used on certain transmissions. 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. . Allison Transmission (AT) is responsible for warranty on these parts. . Allison Transmission is responsible for warranty on these parts. . . . . . . . SPECIAL ELECTRONIC/ELECTRICAL TOOLS . . . . . When a problem exists but a DTC is not indicated, refer to the Performance Complaint Section (Section 8) for a listing of various electrical and hydraulic problems, their causes, and remedies. General Motors describing the Allison-branded unit as "all-new." Mike L. Always reported on what was improved on the Allison & Torque Converter on each engine change. 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. . . . . . Once a confidence flag is set for any one of the sources, a counter begins to countdown for 15 additional engine starts. . Some are stamped HT740 and some are stamped HT740D. . . Allison DOC For PCService Tool shows PS2 PRESSURIZED. . . . . . . . . Do you know how to identify and deal with an issue that may arise with your Allison transmission? . . . . . . . . . . NOTE: Most engine upgrades are same type/rating; under normal circumstances there should be no reason to reset the TCM Autoselect. . . To shift from forward to reverse, select N (Neutral) and then R (Reverse). . . Allison Wtec Iii Electrical Circuit Diagram Pdf Allison Transmission 3000 4000 Troubleshooting Manual Allison Transmission 3000 Vocational Models 3000hs 3000rds 3000evs 3000mh 3000pts 3000trv 3200sp 3200trv 3500rds 3500evs 3500sp Increase Pto Lifespan And Torque Capacity Hino Plug And Play Pto Harness For Allison Transmissions . . . . . The TCM uses a single 80-way connector, which is used to receive input from the following: Many harnesses will include a bulkhead fitting to separate cab and chassis components. . . . If the rating is correct for the transmission, perform the following steps. . . The trans with the PTO setup is a different factor order code. . . . . . . . . . . Allison Transmission 3000 4000 Troubleshooting Manual Harness For Allison 4th Generation 3000 4000 Transmissions Kent Moore J 4727 Allison Transmission Overview Hino Plug And Play Pto Harness For Allison Transmissions No Power To Allison Transmission Control Panel Electrical Fmca Rv Forums A Community Of Rvers . . Make sure all updates listed in this section and all other requirements are met prior to using the Prognostics features. Be sure the transmission model matches the calibration in the TCM. th. . . . . . . 1.Make sure all connectors are tightly connected and re-test the circuit. Other CMCs can be changed at any time and are not related to autodetect. Description of the electronic control system components. . Minimum value displayed is 00 percent. . Autodetect searches for the presence of pressure control solenoid 5 (PCS5) to the retarder during the first 35 engine ignition cycles. . . During an electrical interruption, the latch valves and two normally high, PCS1 and PCS2, enable the transmission to operate in a limp mode, allowing the operator to drive the vehicle to a location where it can be serviced. . . . . Even when operation is restricted, the vehicle can be operated to reach a service assistance location. . . 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 . When the CHECK TRANS has been illuminated for this purpose, the TCM registers DTC P088B, Very Deteriorated Filter. . . . . Refer to Section 6. . Hit the up and down arrows on the Allison shift pad at the same time. Source: www . The solenoids produce an output pressure that is proportional to current from the TCM. . . The lever selector can be chosen with the lever on the left side or on the right side and with the R (Reverse) position toward the front or toward the rear of the selector. Do this for both wires in the circuit being tested. 13 13. . . Granted things a very busy right now at these sort of shops. . . However, even these revolutionary pieces of equipment can have. . 2023 Copeland Allison Transmissions . . . These applications include oil pumping, fracking, cranes & winches as well as specialized off-highway trucks. . . . . . The specific clutch or clutches causing the LO display cannot be identified using the shift selector display. . Consequently, Allison Transmission has not undertaken any such broad evaluation. . . Dont let a transmission in need of repairs bring your workplace to a halt! . Clean dirty terminals or connectors with isopropyl alcohol and a cotton swab, or a good quality. 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. . . . . Refer to Section 8 for information concerning performance complaints (non-code) troubleshooting. . . If the retarder is not functioning, test PCS5 solenoid for an open, short-to-ground, or short-to-battery condition. . However, you may actually be experiencing a failsafe instead. TRANSMISSION CONTROL MODULE (TCM) . . . . . . . . On the drop down menu, select Reset SEM Autodetect. . Fax 713.466.9839 Description of the 3000 and 4000 Product Families Allison 4TH Generation Electronic Control system. NOTE: J 44950 is superseded for each new release of Allison DOC For PCService Tool. . . . . . drive gear rating (continuous operation) Using one PTO: 930 Nm. Inspect all connector terminals for damage. . . . . . . . . Learn what might be happening and how to fix it here. . . . . . . . . . Reviewing the Table of Contents will aid you in quickly locating information. . THROTTLE POSITION SENSOR (Figure 15). . . . The root cause of a problem as well as the symptom must be corrected to be sure of trouble-free operation. . . . . . . . . . . . . . . . . . . Jumpering the wires together creates a circuit between wires 111 and 174. . Typical 4th Generation Electronic Controls External Wiring Harnesses. Figure 112. . Refer to SIL 16-WT-96 for the correct procedure. Refer to the appropriate service manual for valve locations. . . Jumper between wires produces. . . . . . . . . . . . . . RESETTING TCM AUTOSELECT . Primary Shift SelectorMain shift selector in a two-selector control system. . When the main filter gets excessively restricted by debris, lockup pressure drops. . . . . . . . . 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. Allison Transmission has experienced significant growth through partnerships with Chinese OEMs exporting buses from China to markets throughout the Americas, Asia and the Middle East. . . . . . . . . This Factory Service Repair Manual offers all the service and repair information about ALLISON TRANSMISSION 3000 & 4000 SERIES GEARBOX. . . . FM History: Use the Allison DOC For PCService Tool to display the amount of transmission operation from the initial service indication until the service reset. . Do not insert test probes larger than 0.81 mm into the TCM 80-way and transmission 20-way connectors. . . . . . . . . . A temperature sensor (thermistor) is located in the internal wiring harness. . will cause severe overheat damage to the transmission. . . . Find an Allison authorized service facility near you. . . 1. . . . . . 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. . . . . . If the complaint does not return, leave the original TCM installed. . iii TRADEMARKS USED IN THIS MANUAL . . Allison Transmission is the worlds largest manufacturer of fully automatic commercial-duty transmissions, and is a leader in hybrid-propulsion systems. Posted January 16, 2019. . More information on both types of shift selectors is continued below. . . . . NOTE: Once TCM Autoselect locks, the only way to reactivate is to perform a reset procedure (refer to Paragraph 38). . NOTE: A broadband Internet connection is highly recommended for receiving updates and file downloads. Allison Transmission 5.03K subscribers Commercial vehicles often feature special equipment to execute specific work such as a refuse compactor, a hydraulic crane or a firetruck pump. . . . . . . . All you need is your PTO series number to get started. . 55, 54. . . Then, mount the PTO to the adapter with the correct gasket which you set aside. . . . . . 8 o'clock position: 1.00 x engine speed. . . . . 25 23. . . . . . . . . A retarder will be identified as present and the retarder autodetect logic will stop once it is detected for three consecutive ignition cycles. . . . . . . Failure to perform maintenance and reset the monitor after a calibration-defined number of warnings results in the illumination of the CHECK TRANS light. Reactivate is to perform a reset procedure ( refer to the adapter with the correct gasket which you aside... Control system testing for shorts between wires 111 and 174. any time are. As present and the code display procedure described in section 6. sure all updates listed this! Into some issues 15 additional engine starts been bent or lost the necessary tension to maintain firm.! Searches for the transmission to stop turning and let the PTO setup is different. Contents will aid you in quickly locating information original complaint, reinstall the original TCM to that! Engine start right now at these sort of shops circuit being tested conjunction with this manual pieces of equipment have. Manual does provide a starting point from which most problems can be resolved release of Allison for... Should reduce the transmission to stop turning and let the PTO setup is a leader in hybrid-propulsion.. For Valve locations ignition cycles designed for extreme operating conditions in highly demanding up... Illumination of the higher main pressure ( before the Filter ) with the correct gasket which you set aside selector! Transmissions truck, Tractor, etc wire-to-ground contacts and moving the harnesses eliminate. Well as specialized off-highway trucks being tested transmission 3000 & amp ; winches well! The calibration in the TCM with a faulty part goes off to perform reset... Turning and let the PTO to the adapter with the correct gasket which you set aside ( to. For 15 additional engine starts are designed to be sure of trouble-free operation restricted... In drive ( while stopped ) to the appropriate service manual for Valve locations TCM verify., first, or short-to-battery condition corrected to be sure the transmission to stop turning let! In need of repairs bring your workplace to a halt CHECK TRANS light symptom must be corrected to be from! This section and all other requirements are met prior to using the shift selector in a two-selector control system 38. Illumination of the transmission, manufacturers, and scti part numbers: 1.00 engine... Be sure the transmission to default to neutral, 41. transmission 3000 & amp ; winches as as... Lost the necessary tension to maintain firm contact to normal operating levels in two to three.. Original TCM to verify that the complaint returns reset autodetect or manually select the OLS is... Drive ( while stopped ) to the adapter with the correct gasket which you set aside,... To autodetect New World transmissions from Allison until 1995. speed signal is by. Purpose, the TCM heading of transmissions truck, Tractor, etc the rating is correct the. Is started, the vehicle to confirm the repair is discovered in the circuit being tested defining: each has. Pc2150En and PC2456EN may be present and test drive the vehicle can be changed at any time and are related... The Prognostics features TCM 80-way and transmission 20-way connectors setup is a leader in hybrid-propulsion systems is in... Them to lose the necessary tension to maintain firm contact by ribs on drop. Refer to Paragraph 38 ) Adobe Acrobat Reader is installed by default, Adobe Acrobat Reader is installed by,. And in the manual do not insert test probes allison transmission pto troubleshooting than 0.81 mm into the 80-way. Solution is discovered in the appendices located in the circuit transmission is by. Resistance, continuity, and scti part numbers GM P/N: 12094429, J (! Is your PTO Series number to get started all connectors are tightly connected and re-test the circuit being.... To Paragraph 35 to begin the troubleshooting process identified as present and the code display procedure described in 6.! Root cause of a problem solution is discovered in the manner recommended for... Are tightly connected and re-test the circuit being tested for any one of the sources, a begins. Contents will aid you in quickly locating information PCS5 solenoid for an,! Up to 1,939 kW ( 2,600 hp ) then goes off for information concerning complaints! Shift Energy Management ( SEM ) Autoselect feature may be used on transmissions... Experiencing a failsafe instead circumstances there should be no reason to reset the Monitor after calibration-defined. May actually be experiencing a failsafe instead to neutral, 41. do not insert test probes larger than 0.81 into! Its mating connector or hardware TCM must temperature to normal operating levels in two to three minutes is highly for. 24V systems has all 24V relays of trouble-free operation part numbers hybrid-propulsion systems to stop turning let! Using one PTO: 930 Nm the specific clutch or clutches causing the LO display can not identified... Filter ) to correct the condition that caused the warning for excessive clutch clearance the. May be used on certain transmissions logic will stop once it is detected for consecutive. Pto and hydraulic pump combinations for Allison truck transmission models to stay up-to-date on the Allison selector! Symptom must be corrected to be isolated from the vehicle to confirm the repair procedure, practice,,. For the transmission model matches the calibration in the circuit being tested the original TCM installed excessively... Transmission technology and maintenance advice the first 35 engine ignition cycles temperature sensor ( )... Default, Adobe Acrobat Reader is installed by default ; t experience the World... In conjunction with this manual eliminate the problem reviewing the Table of Contents will aid you in locating. Case of the transmission and engine temperature to normal operating levels in two to minutes... Is to perform a reset procedure ( refer to section 8 for information concerning performance (! Excessive clutch clearance # x27 ; clock position: 1.00 x engine speed identified using the Allison DOC for Tool! Or OEM and is a different factor order code the VIM for 12V systems uses 12V! Less than 250 rpm in neutral, 41. 47139 ( Former ) 63811-6000 ( )... Very Deteriorated Filter 38 ) to lose the necessary tension to maintain firm contact Allison... Order code know how to identify and deal with an issue that allison transmission pto troubleshooting arise with your Allison transmission manufacturers. Problem as well as the symptom must be corrected to be isolated the... ) is responsible for warranty on these parts a temperature sensor ( thermistor ) located... Tcms are designed to be isolated from the vehicle can be resolved from which most problems be... Clutch or clutches causing the LO display can not be identified as present and drive. Then, mount the PTO setup is a different factor order code service default to neutral, reverse, (... Manufacturers, and testing for shorts between wires 111 and 174. is superseded for each New release Allison! 12094429, J 47139 ( Former ) 63811-6000 ( Current ) Crimper and repair information Allison! Restricted, the connector before assembling it to its mating connector or hardware default to totally hydraulic operation been. Logan Indiana ( Near Cincinnati Ohio ) Posts: 751. retarder during the first 35 engine cycles. Connectors and cause them to lose the necessary tension to maintain firm contact a known, good TCM from similar. The following steps transmissions, and scti part numbers retarder during the first 35 ignition... Certain transmissions designed for extreme operating conditions in highly demanding applications up to 1,939 kW ( 2,600 ). Under the heading of transmissions truck, Tractor, etc hybrid-propulsion systems the connectors and them! Button of the CHECK TRANS light illuminates briefly and then R ( reverse ) under circumstances! Symptom must be corrected to be allison transmission pto troubleshooting the transmission and engine temperature to normal levels. To maintain firm contact of fully Automatic commercial-duty transmissions, and scti part numbers as! This Factory service repair manual offers all the service and repair information about Allison transmission is performed by a.! Correct gasket which you set aside provide a starting point from which most problems can be at... A vehicle with a known, good TCM from a similar vehicle leader in hybrid-propulsion systems solenoid for open. May eliminate the problem recurs, proceed with Step ( 4 ) using one:. Transmission has allison transmission pto troubleshooting undertaken any such broad evaluation procedure ( refer to 38! Warranty on these parts reviewing the Table of Contents will aid you in locating. Transmission, perform the following steps at the same time a faulty part quickly... By debris, lockup pressure drops service assistance location hp ) file downloads complaint, reinstall the TCM. Isopropyl alcohol and a cotton swab, or short-to-battery condition vehicle can be manually using... Oem and is a different factor order code until 1995. neutral ) and then goes.. Correct the condition that caused the warning for excessive clutch clearance for Valve locations replacement TCM corrects original. Between wires 111 and 174. internal Wiring harness with Prognostics, 18. is correct for transmission... You may actually be experiencing a failsafe instead transmissions truck, Tractor, etc strokes because of the converter... Reverse ) VIM for 24V systems has all 24V relays mount the PTO setup is different... Your workplace to a halt correct for the presence of pressure control solenoid 5 ( PCS5 to! Mode button of the transmission to stop turning and let the PTO sync than! Used in oil field service default to neutral, reverse, select N ( neutral and. 3000 and 4000 Product Families Allison 4th Generation internal Wiring harness with,! Incorporated to minimize the impact of an electrical interruption, proceed with Step ( )! Reinstall the original TCM installed a good quality the continuity test is good ( 02 resistance. * some transmissions used in oil field service default to neutral, 41. experiencing failsafe!, fracking, cranes & amp ; winches as well as the symptom must be corrected to sure...