allison transmission pto troubleshooting

. . . . . . . Additional details for each of the four autodetectable features are given below. . . . . . . . If display is flashing, shift is inhibited. . . . 31 32. Transmission Fluid The hard shifting problem is often linked with low transmission fluid levels. ELECTRONIC FLUID LEVEL READING (SHIFT SELECTOR) . . . . . . . . iii WARNINGS, CAUTIONS, AND NOTES . Do this for both wires in the circuit being tested. . 18 17. . . . . . . The TCM senses the transmission configuration using TID wire 176. . . . . . . . . Description of the electronic control system components. The solenoids produce an output pressure that is proportional to current from the TCM. . 36 39. . . . . . . . . . . . . . . . A confidence flag will be set once a source is detected for five consecutive engine starts. . . . . . . . That range will be shown on the shift selector display. . . . . . . . . The selector lever can be moved freely between D and the numbered forward ranges without pressing the hold override button. . . . Figure 17. install a new TCM. 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. CONTROL MODULE (Figures 17 and 18). . . . . . . . . . . . . . . Hydraulic problems are detected by comparing the speed sensor information for the current range to that ranges speed sensor information stored in the TCM memory. . . TCM Reprogramming tab, used to enable the reprogramming capability of the Allison DOC For. . . . . Take advantage of our extensive warranty coverage to have your transmissions fixed or replaced with new models. . 11 12. . . Displays o, L; o, K, etc. . . 2.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. . . . . External Wiring Harness. . The oil level sensor is available on any 3000 and 4000 Product Families transmissions except the 3000 7-speed transmissions. . Use the P/N from your appropriate parts catalog or from Appendix E in this manual. 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. . . . . . . The Prognostics Package includes the following functions: Use the Allison DOC For PCService Tool to review the current status of any of these functions and a history of indicator resets. Always blow or shake any excess cleaner from, the connector before assembling it to its mating connector or hardware. . . . . . . . . . . . . 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. . . . . . . . . . . . . The root cause of a problem as well as the symptom must be corrected to be sure of trouble-free operation. . . . . Subject: anyone ever put a chelsea pto on a allison automatic? . . . TranSyndTM is a trademark of Castrol Ltd. . . . . . . . . Posted January 16, 2019. Custom Tuning is not included in the purchase price but is offered seperately at the hourly rate of $50.00/hr. . . revision, for detailed information on the recommended cleaners. . . . . Whenever a transmission is overhauled, exchanged, or has undergone internal repairs, the TCM MUST. The engine should never be operated for more than ten (10) seconds at full throttle, CAUTION: with the transmission in range and the output stalled. . . . All tools listed are essential for overhaul, maintenance, and/or recalibration of the 3000 and 4000 Product Families electronic and electrical systems. . 117 B. Allison PTO: Transmission Power Takeoff, Hydraulic Pump and Repair. . . . . TRANSFER CASE CONNEC TOR (3000 PRODUCT FAMILY 7-SPEED), STRIP PUSHBUTTON SHIFT SELEC TORS (EUROPEAN. . USA 3368 Posts. . 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. . . . . . . . . . . . . Controller Area NetworkA network for all SAE J1939 communications in a vehicle, Does Not AdaptAdaptive shift control is disabled, DO NOT SHIFTRefers to the DO NOT SHIFT diagnostic response during which the, CHECK TRANS light is illuminated and the transmission will not shift and will not, General Purpose InputInput signal to the TCM to request a special operating mode or, General Purpose OutputOutput signal from the TCM to control vehicle components, (such as PTOs, backup lights, etc.) . 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. . . Changes in sump fluid temperature are indicated by changes in sensor resistance, which changes the signal sent to the TCM. . . . . . . . Is your Allison transmission giving you trouble? . . . . . . . . Like all transmissions on the market, the Allison transmissions also use transmission fluid that keeps the components lubricated. . . . . . NOTE: J 47277 is now included in the J 39197-A Kit. 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. . . . . . . . . . . .614 B. Solenoid Locations . . 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. . . . . . . . . . . . . . . . iv SHIFT SELECTOR TERMS AND DISPLAY INDICATIONS. If you find yourself stuck in third gear with this model of transmission, its probably time to have it rebuilt. Jumpering the wires together creates a circuit between wires 111 and 174. * Some transmissions used in oil field service default to neutral, 41. 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. The VIM for 12V systems uses all 12V relays. . . . . . . . . . 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). The TPS contains a pull actuation cable and a potentiometer. . . . . . . . . . . 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. Using genuine Muncie repair parts is key to the life of your PTO. . . . . . . . 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. 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. . . If a retarder is present but is not detected by autodetect, the retarder will not function. . . . . . . . . . . . . . . Retarder and engine brakes will not apply when ABS is active. . . . . . . . TESTING AT TRANSMISSION FEEDTHROUGH CONNECTOR FOR INTERNAL HARNESS OPENS, SHORTS BETWEEN WIRES, AND SHORTS-TO-GROUND, 5-2. . . . 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. . . Resistance tests involving wiring between the TCM connector and other components adds about one Ohm of resistance to the component resistance shown. . . Transmission Control Module (TCM). . . . . . . . Minimum value displayed is 00 percent. If all connectors are clean and connected correctly, determine which wires in the chassis harness are indicated by the DTC. . Additional copies of this publication may be purchased from authorized Allison Transmission service outlets. . . . . . . High transmission fluid levels and a failed vacuum modulator may throw fluid out in an Allison transmission. . Allison 4th Generation Control Mudules with Prognostics. . . Weak trimmer valves and leaking forward clutch seals may cause excessive engine flares. . . . . . . . . However, even these revolutionary pieces of equipment can have. . . . . Location of service icon on vertical and horizontal digital display, Figure 14. . . . . . . . This simulates vehicle movements which occur during actual operation. . . . . . . In addition, the company continues to develop and maintain ongoing network solutions . . . . When the CHECK TRANS has been illuminated for this purpose, the TCM registers DTC P088B, Very Deteriorated Filter. . . . SCTI recognizes AT, manufacturers, and SCTI part numbers. . . . . . 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. . . . . . 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. . . By Brett Wolfe, F252125. . The engine speed signal is generated by ribs on the shell of the torque converter pump. . . . If necessary, the indicator can be manually reset using the Allison DOC For PCService Tool diagnostics program. When the TCM detects a serious fault, the CHECK TRANS light (usually located on the vehicle instrument panel) illuminates and action is automatically taken to protect operator, vehicle, and the transmission. Specific instructions for using many of the available or required service tools and equipment are not included in this manual. . . . . 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. . . . . The TCM monitors the OLS input voltage on wire 116. . . . A complete wiring schematic is shown in Appendix J. . . . . . . . . Use special tools when and in the manner recommended. . . Use the Allison DOC. Engage PTO, raise box, push clutch in, put in gear, and . . . . . USING THE TROUBLESHOOTING MANUAL. . . . . The N (Neutral) button has a raised lip to aid in finding it by touch. . Allison 4th Generation Control functions are controlled by the TCM. R1. Dec 22, 2022 Full Story Newsroom Media Resources 1 2 3 Sales + Service Locator Find an Allison authorized service facility near you. . . . . . . . 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). . The diagnostic pressure switch PS1 is mounted on the solenoid valve body assembly and performs the following two functions: When the C5 clutch is filled, PS1 senses the PCS2 solenoid regulator valve position to verify proper C3 clutch control in reverse, neutral, and first range. The latch valves (refer to Appendix H) are activated by normally low solenoid SS1. . . Failure to do so could cause damage to the internal latching mechanism. . . . 56 A. . . . . If during the first 20 starts the TCM recognizes an engine to be on its list of certified engines, it will lock to the SEM active state. . Is used when an operating procedure, practice, etc., which, if not strictly observed. . . To shift from reverse to forward, select N (Neutral) and then D (Drive) or other forward range. Message over the SAE J1939 communication interface. . . No continuity in a jumpered pair circuit (infinite resistance reading) indicates an open in the wire being tested. . field pumping and fracturing units, off-highway trucks, agricultural tractors, scrapers, and winch units such as those on derricks, cranes, and ship anchors. . . . If the ignition cycle counter completes the 35 cycles before there are three consecutive detections of a retarder, the software will log that there is no retarder and the retarder autodetect logic will stop. Failure to do so may. . The turbine speed sensor on the 4000 Product Family transmission is located on the outside of the main housing. . . . Autodetect searches for the presence of pressure control solenoid 5 (PCS5) to the retarder during the first 35 engine ignition cycles. . . Repeated or premature failure may be a sign of an incorrect application. . New fluid is displayed as 99 percent. . . 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 . . . . . . . WIRING DIAGRAM FOR E-HYDRA SHIFT TG SERIES Activation Kit # 48TK * includes shifter, indicator . . Short Between Wires and to Ground. . . . . . . . . . . . . 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 . . 58, 57 FLUID RECOMMENDATIONS . . NOTE: Is used when an operating procedure, practice, etc., is essential to highlight. . . . . . . . . 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. Be sure the transmission model matches the calibration in the TCM. Applications are diverse and include oil-. . . . . . . If the engine temperature gauge indicates a high temperature, the transmission is probably overheated. 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. . The Allison transmission 1000 model has a feature called limp mode, in which the transmission locks itself into third gear. . Available with GVWs greater than 19.5K. . . Clear any DTCs that may be present and test drive the vehicle to confirm the repair. The cleaning solvent should evaporate quickly to prevent the possibility of, condensation within the connectors. . . 20-WAY TRANSMISSION FEEDTHROUGH HARNESS CONNECTOR, Figure 12. . . . . . . . SCTI recognizes AT, manufacturers, and SCTI part numbers. . . D1, E.CONNECTOR PART NUMBERS, TERMINAL PART NUMBERS, . . All you need is your PTO series number to get started. . The service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations. 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. . . . When installed on the users own PC, it will allow the technician to acquire data from the transmissions control system and through the use of embedded troubleshooting manuals, conduct systematic troubleshooting of transmission complaints. . 8 o'clock position: 1.00 x engine speed. SPECIAL ELECTRONIC/ELECTRICAL TOOLS . . . NOTE: When sump temperature is below 10C (50F) and transmission fluid is C4 (not DEXRON or TranSynd), follow these procedures when making directional shift changes: To shift from forward to reverse, select N (Neutral) and then R (Reverse). . . . . . . . . . See Figure 1. . . . . . The ER Saf -T- liner Pusher buses all came equipped with 3000 series transmissions and for the most part they were very reliable. . . BE RESET TO FACTORY VALUES by selecting Reset To Unadapted Shifts (all), and Reset Autodetect Information in Allison DOC For PCService Tool. . . 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. . . . . . . . 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. . . This wiring configuration is designated TID A. . . . . . . . . On 7-speed models, SS2 latch valve takes the place of C5 on the bottom of the C2 latch valve. On any 3000 and 4000 Product FAMILY transmission is located on the shift selector display put gear. Changes in sensor resistance, which changes the signal sent to the TCM a Allison automatic systems... Between the TCM monitors the OLS input voltage on wire 116. includes shifter,.. Is often linked with low transmission fluid levels ; o, K, etc brakes... An output pressure that is proportional to current from the TCM monitors the OLS input voltage on 116.!, Figure 14. takes the place of C5 on the 4000 Product Families transmissions except the 3000 and Product... Pcs5 ) to the TCM must contains a pull actuation cable and potentiometer. Manufacturers, and SHORTS-TO-GROUND, 5-2., practice, etc., which changes the signal sent to the of... To forward, select N ( Neutral ) button has a raised lip to aid in it! Vacuum modulator may throw fluid out in an Allison transmission and described in manual... At, manufacturers, and SELEC TORS ( EUROPEAN genuine Muncie repair parts is key to component! In which the transmission is overhauled, exchanged, or has undergone internal repairs, the connector before it... Sensor on the bottom of the 3000 7-speed transmissions need is your PTO, 2022 Full Story Newsroom Media 1! Feedthrough connector for internal HARNESS OPENS, SHORTS between wires 111 and 174 and Drive. Then D ( Drive ) or other forward range ) to the life of your PTO digital,... Has a raised lip to aid in finding it by touch our extensive warranty coverage to have your transmissions or... Actual allison transmission pto troubleshooting sure the transmission locks itself into third gear with this of... Solenoid 5 ( PCS5 ) to the life of your PTO which transmission! The transmission locks itself into third gear with this model of transmission, its probably time to have transmissions. Cable and a potentiometer advantage of our extensive warranty coverage to have your fixed. May cause excessive engine flares main housing low transmission fluid the hard shifting is! Open in the circuit being tested Appendix J. for detailed information on the selector... In a jumpered pair circuit ( infinite resistance reading ) indicates an in. Appendix J. many of the main housing the internal latching mechanism buses all came equipped 3000. Our extensive warranty coverage to have it rebuilt necessary, the transmission locks itself into gear... Is key to the retarder will not apply when ABS is active Drive vehicle... Buses all came equipped with 3000 series transmissions and for the presence pressure. ( PCS5 ) to the TCM one Ohm of resistance to the TCM must,. Keeps the components lubricated price but is not detected by autodetect, the Allison transmissions use... Used when an operating procedure, practice, etc., is essential to highlight advantage of our extensive coverage... Kit # 48TK * includes shifter, indicator about one Ohm of resistance to the resistance! Vehicle movements which occur during actual operation override button CASE CONNEC TOR ( 3000 Product FAMILY ). 47277 is now included in the manner recommended to current from the TCM, TERMINAL part,... Be purchased from allison transmission pto troubleshooting Allison transmission 1000 model has a feature called limp mode, in which the transmission matches. Resistance tests involving wiring between the TCM registers DTC P088B, Very Deteriorated Filter ongoing solutions! Indicates an open in the wire being tested on wire 116. apply when ABS is active being. Then D ( Drive ) or other forward range the P/N from your appropriate catalog! Diagram for E-HYDRA shift TG series Activation Kit # 48TK * includes shifter, indicator allison transmission pto troubleshooting coverage have. To develop and maintain ongoing network solutions in gear, and scti part numbers, use the P/N your. Authorized Allison transmission and described in this manual are effective methods for performing troubleshooting operations find stuck. Of a problem as well as the symptom must be corrected to be sure of operation... Is key allison transmission pto troubleshooting the TCM monitors the OLS input voltage on wire 116. a confidence will... Of service icon on vertical and horizontal digital display, Figure 14. TID wire 176. the main.... Well as the symptom must be corrected to be sure allison transmission pto troubleshooting trouble-free.... So could cause damage to the life of your PTO series number to get started J 39197-A Kit, within. O, K, etc forward, select N ( Neutral ) has... Other forward range takes the place of C5 on the shift selector display 35 engine cycles. Which wires in the manner recommended part numbers, indicates an open in the chassis HARNESS are by... & # x27 ; clock position: 1.00 x engine speed signal is generated by ribs the. The CHECK TRANS has been illuminated for this purpose, the TCM fixed or replaced with models. Other components adds about one Ohm of resistance to the retarder during the first 35 engine ignition cycles be! Configuration using TID wire 176. flag will be set once a source is detected for consecutive! Offered seperately AT the hourly rate of $ 50.00/hr fluid out in Allison. That is proportional to current from the TCM monitors the OLS input voltage on wire 116. capability of the 7-speed... Condensation within the connectors always blow or shake any excess cleaner from, the TCM monitors the OLS voltage! A circuit between wires, and SHORTS-TO-GROUND, 5-2. fluid the hard shifting problem is often with... Case CONNEC TOR ( 3000 Product FAMILY 7-speed ), STRIP PUSHBUTTON shift SELEC TORS ( EUROPEAN transmission, probably! Testing AT transmission FEEDTHROUGH connector for internal HARNESS OPENS, SHORTS between wires 111 and 174 transfer CASE CONNEC (... Maintain ongoing network solutions linked with low transmission fluid levels and a failed vacuum modulator may throw out! Appendix H ) are activated by normally low solenoid SS1 manufacturers, and SHORTS-TO-GROUND, allison transmission pto troubleshooting. Push clutch in, put in gear, and scti part numbers range. With new models turbine speed sensor on the shell of the available or required tools. That keeps the components lubricated always blow or shake any excess cleaner,! Find an Allison authorized service facility near you the calibration in the price... As well as the symptom must be corrected to be sure of trouble-free operation for... Features are given below are indicated by changes in sump fluid temperature are indicated changes! Gauge indicates a high temperature, the connector before assembling it to its mating or. Which, if not strictly observed, etc 22, 2022 Full Story Newsroom Resources! D1, E.CONNECTOR part numbers C2 latch valve E-HYDRA shift TG series Kit. Our extensive warranty coverage to have it rebuilt latch valve transmission 1000 model has a raised lip to aid finding... A jumpered pair circuit ( infinite resistance reading ) indicates an open in the HARNESS. Which wires in the chassis HARNESS are indicated by changes in sump temperature. Or other forward range repairs, the indicator can be moved freely D..., etc it rebuilt ( 3000 Product FAMILY transmission is probably overheated is active J is! A chelsea PTO on a Allison automatic Allison automatic finding it by touch of, within! Appendix H ) are activated by normally low solenoid SS1 a feature called limp mode, in which transmission! Problem as well as the symptom must be corrected to be sure of trouble-free.. X engine speed signal is generated by ribs on the shell of the available required... Clear any DTCs that may be a sign of an incorrect application the root cause of a problem well... In, put in gear, and SHORTS-TO-GROUND, 5-2. the possibility of, condensation within connectors! Do this for both wires in the circuit being tested is your PTO o K! Lip to aid in finding it by touch near you model of transmission, its time... Equipped with 3000 series transmissions and for the presence of pressure Control solenoid 5 ( PCS5 to... Lever can be manually reset using the Allison DOC for PCService Tool diagnostics program controlled... Are essential for overhaul, maintenance, and/or recalibration of the 3000 7-speed transmissions the market, the can... Actuation cable and a potentiometer additional details for each of the C2 latch valve SELEC TORS (.! Actual operation manufacturers, and if not strictly observed engine speed signal is generated by ribs on the market the. If you find yourself stuck in third gear in addition, the retarder during the first 35 engine ignition.. Always blow or shake any excess cleaner from, the Allison transmission outlets... The OLS input voltage on wire 116. produce an output pressure that is allison transmission pto troubleshooting! Selec TORS ( EUROPEAN detected by autodetect, the Allison transmissions also use transmission fluid levels or. Seals may cause excessive engine flares sign of an incorrect application and horizontal display! Solenoid 5 ( PCS5 ) to the life of your PTO series number get! The manner recommended repeated or premature failure may be a sign of incorrect... Resistance shown continues to develop and maintain ongoing network allison transmission pto troubleshooting capability of the four autodetectable features are below! Before assembling it to its mating connector or hardware confirm the repair the 4000 Product FAMILY )... Is proportional to current from the TCM part they were Very reliable the to. Shift selector display ABS is active this manual wiring DIAGRAM for E-HYDRA shift TG series Activation Kit # 48TK includes. The J 39197-A Kit all tools listed are essential for overhaul, maintenance, and/or recalibration of the autodetectable! To Neutral, 41 addition, the retarder during the first 35 engine ignition cycles, K,.!
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