. . . . . . . The microcomputer is an independent controller and is referred to as a Transmission Control Module (TCM). . . . . . NOTE: Turn off the vehicle HIGH IDLE switch, if present, before shifting from N (Neutral) to D (Drive). 43, 51. . . . . Use the P/N from your appropriate parts catalog or from Appendix E in this manual. If an OLS is known to be present, but has not been detected, troubleshooting the OLS circuit is required. . . . . . . . . They were intended for Oshkosh Hemtt use. . . . 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. . . . Original Equipment ManufacturerMaker of vehicle or equipment, Over Limit or Oil LevelFor Over Limit see . . . . . . . . . . If you find yourself stuck in third gear with this model of transmission, its probably time to have it rebuilt. . . . . . . . . . . . Subject: anyone ever put a chelsea pto on a allison automatic? Review the Installation Checklist in the 3000 and 4000 Product Families transmissions Tech Data for proper installation. . . . Test drive the vehicle to confirm a DTC or performance complaint. . . . . . . . . . . . Always blow or shake any excess cleaner from, the connector before assembling it to its mating connector or hardware. . . . . . . . The exception is when C5 clutch is applied. . . . . . . The selector lever can be moved freely between D and the numbered forward ranges without pressing the hold override button. . If the code does not reappear, it may be an intermittent problem. . Available with GVWs greater than 19.5K. . HYDRAULIC OPERATION DURING ELECTRICAL INTERRUPTION, 4-2. . . . . . 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. RESTTING OF TCM PARAMETERS TO SUPPORT ENGINE UPDATE . . . 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. 58, 61. . . . The lamp strategy for the icon varies, either flashing, or steady, to indicate to the operator which function detected the threshold value was reached. iv SHIFT SELECTOR TERMS AND DISPLAY INDICATIONS. On the opposite end of the harness, test the continuity of the jumpered pair. . . . . . . . . Shorts involve wire-to-wire or wire-to-ground contacts and moving the harnesses may eliminate the problem. It is necessary to determine why a problem occurred. . Allison 9000 Series transmissions have up to 8 forward speeds plus a maximum of two reverse . . . With proper maintenance and normal usage, Allison transmissions will last you a very long time with few problems. . The SERVICE TRANS icon flashes up to 2 minutes at key on after D (Drive) is selected. . . . . . . . . . . . . Allison DOC For PCService Tool displays from 100 percent down to minus () 100 percent. . . . . . . . . . The differential pressure limit is verified for a period of time to make sure there is no false filters change indication. . . . This occurs when the remaining clutch life reaches. . During diagnostic display mode, illumination of the LED indicator shows that the displayed Diagnostic Trouble Code (DTC) is active. 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. . . SHIFT SELECTOR . . . . . 36, 41. . . . . . . . Input power, ground, neutral start circuitry, etc., can cause problems with electronic controls or vehicle functioning and may not generate a DTC. . . . . . . . . The service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations. . . . . . . . BEGINNING THE TROUBLESHOOTING PROCESS, 3-7. . 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. . . install a new TCM. . Cleaner, trapped in the connector can affect the connector seal. It is normal for the TCM date displayed electronically to be a few days prior to the date shown on the label. . . . . . . . Replace the TCM with a known, good TCM from a similar vehicle. . . . . . . . . . . . . . . . . Find an Allison authorized service facility near you. . . Allison Transmission is the worlds largest manufacturer of fully automatic commercial-duty transmissions, and is a leader in hybrid-propulsion systems. . . . . . . . . . . . . . . . . . . 57 56 KEEPING FLUID CLEAN . Failure to do so could cause damage to the internal latching mechanism. . . . Muncie offers PTO and hydraulic pump combinations for Allison truck transmission models. . . ALLISON TRANSMISSION DIAGNOSTIC TOOL. . . . . . . . . . . . . . . . . . . Dry Air (can vary depending on humidity) 346 m/s. . . . . . Condition Likely Cause Correction Allison. Wiggle connectors, harnesses, and splices when looking for opens. . . . Be sure the transmission model matches the calibration in the TCM. . . . . See the selector information section for that procedure. . . . Output speed is less than 250 rpm in neutral, reverse, low (7-speed), first, or second range. Second. . . . . Examples are wheelchair lift not stored and service brakes not applied (service brake interlock present). . . Location: Logan Indiana (Near Cincinnati Ohio) Posts: 751. . Location. . . . . . . The math says the air control hoist valve vs a cable control should be a lot quieter. . .ii IMPORTANT SAFETY NOTICE . . . Remember that some problems may be temperature related. . . Some OEMs may provide their own equivalent for the VIM which performs the same functions as the VIM shown in Figure 112. . . . . The PTO is optional on the 10-speed "Allison . . . Autodetect takes place within the first 30 seconds of each engine start monitored. . 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. . . Welcome to the TS3989EN Troubleshooting Manual. . 116 19. 118, 110. . . . Refer to Section 8 for information concerning performance complaints (non-code) troubleshooting. . . . . . Message over the SAE J1939 communication interface. . Allison PTO: Transmission Power Takeoff, Hydraulic Pump and Repair. . . th. . N1 P. INPUT/OUTPUT FUNCTIONS . . . 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 VIM for 12V systems uses all 12V relays. . . . . . . . There are no restrictions on engine speed in neutral. . . . . . . . USA 3368 Posts. . There are no restrictions on engine speed in neutral. If it appears to functioning p[roperly, run the engine at 12001500 rpm with the transmission in N (Neutral). . . . 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. . . . 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. . . . . . Check phasing, angularity, and slip movement of driveshaft. . . If a DTC is found in the TCM memory, record all available code information and clear the active indicator. . . . . . . . . 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. 56, 55 HOT CHECK . . . . . . Failure to follow these procedures may cause illumination of the CHECK TRANS light and the transmission will be restricted to N (Neutral). Do you know how to identify and deal with an issue that may arise with your Allison transmission? Be sure the transmission model matches the calibration in the TCM. . . . . . Copyright 2008 Allison Transmission, Inc. P.O. . . . The TCM senses the transmission configuration using TID wire 176. Typical Allison 4th Generation Shift Selectors, 14. . . . . . . . . . 56 A. Engage PTO, raise box, push clutch in, put in gear, and . 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). . Figure 13. . . . . . . . . . . . 62 63. VEHICLE INTERFACE MODULE . . OLS input voltage must exceed a predetermined level for the TCM to record a detection. . . . . . . . . . . . . . The technician should also have the mechanical aptitude required to connect pressure gauges or transducers to identified pressure ports used in the troubleshooting process. The four items above are the only CMCs that are autodetectable. At one end of the harness, using jumper wire kit J 39197 or J 39197-A, connect wires 111 and 174 to each other, being careful not to distort the terminals. . Both upshifts and downshifts may be restricted when the CHECK TRANS light is illuminated. If the complaint does not return, leave the original TCM installed. . . Replace air valve. . . . . . . . . . . . The Diagnostic Trouble Code section lists DTCs and their description. On 7-speed models, SS2 latch valve takes the place of C5 on the bottom of the C2 latch valve. . . . . . Allison Transmission PTO Units For All Models. . 855 844-SALE | 855 844-7253. . . . . . . . . ALLISON TRANSMISSION_TS3977EN_Troubleshooting Manual 4th Gen 1000 & 2000 Prod Fam - Free ebook download as PDF File (.pdf), Text File (.txt) or read book online for free. . . . . . . . Learn how you can ensure the performance and durability of your Allison transmission. . . . . Allison Transmission Troubleshooting Manual 5000, 6000, 8000, 9000 Series Download. . . . . . . . Look in your telephone directory under the heading of Transmissions Truck, Tractor, etc. . . . Applications are diverse and include oil-. . . . . . . . . If the code reappears, refer to Section 6, Diagnostic Trouble Code, and the appropriate code chart. . . . . . . . . . Thoroughly clean corroded or dirty terminals. . . . B1 C. SOLENOID AND CLUTCH CHART. . . Engine coolant temperature sensor autodetect will countdown for a total of 25 engine starts while recording detections of engine coolant temperature sources. . . . . . . . . If engine rating is not compatible, the vehicle must be returned to the OEM for engine recalibration. . Autodetect searches for the presence of the following transmission components or data inputs in the priority listed: Even after autodetect has been completed, it can be reset to monitor an additional group of engine starts. . . . . . . . . If the pto light in the dash cluster ( has to be the one in the cluster) is on , then the VECU should be getting the " PTO on" signal and operate as per the Pto parameters that were programmed in the VECU ( Vechicle control unit) . . Figure 12 shows Allison 4th Generation electronic control components. . CHECK TRANS LIGHT . . . . . . . . . . . . . . . . . . . . . . The Allison transmission 1000 model has a feature called "limp mode", in which the transmission locks itself into third gear. . Mild Steel 3235 m/s. . . . 7200 Ertel Lane New animated screen by screen help support (found in Help. . . . Its also possible that the transmission itself is just fine, but was installed incorrectly. . . Accordingly, ANYONE WHO USES A SERVICE PROCEDURE OR TOOL WHICH IS NOT RECOMMENDED BY ALLISON TRANSMISSION MUST first be thoroughly satisfied that neither personal safety nor equipment safety will be jeopardized by the service procedures used. . . . . PTO Neutral Lockup. . . . . . . The Allison transmission 1000 model has a feature called limp mode, in which the transmission locks itself into third gear. . . . . . 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. The oil level sensor (OLS) is a float type device mounted on the control module channel plate. . . . . TESTING FOR OPENS, SHORTS BETWEEN WIRES, AND SHORTS-TO-GROUND. . . . . . . . . . . . . This should reduce the transmission and engine temperature to normal operating levels in two to three minutes. . . . . . . . . . . . . . . FM Display: An acceptable filter life status is displayed as OK in the shift selector; an unacceptable filter life status is displayed as LO. . . . . . . . . Also, many different styles and materials for harnesses are likely to be encountered. . . . . . . . Consult the Allison DOCTM Users Guide, GN3433EN, for, detailed instructions related to Allison 4th Generation Controls CMC. . . . . . . . . . . . . Refer to Section 6, Diagnostic Trouble Codes, for the code clearing procedure. . . . . . . . . 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. . . . . The PTO input to the TCM indicates the PTO is OFF. . . . . . . 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. . . . . . . to stay up-to-date on the latest in Allison transmission technology and maintenance advice. . Allison 4th Generation Control functions are controlled by the TCM. . Isolate and repair the short. . . We make every effort to keep our service information current and accurate. . . . . . A full-function shift selector has a MODE button and diagnostic display capability through the dual digit vacuum fluorescent (VF) display. . . . . . . . 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.) . Locate the appropriate troubleshooting chart and follow the instructions. . TM Display: An acceptable clutch life status is displayed as OK in the shift selector; an unacceptable clutch life status is displayed as LO. . . . . . . Posted January 16, 2019. . NOTE: All Allison 4th Generation Controls TCMs are designed to be isolated from the vehicle chassis ground. . TroubleshooTing guide. Refer to Appendix A if a circuit problem is suspected. . . . 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. SPECIAL ELECTRONIC/ELECTRICAL TOOLS . . . . . . (2)On the opposite end of the harness, test the continuity of the jumpered pair. 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. May cause illumination of the harness, test the continuity of the CHECK TRANS is... The worlds largest manufacturer of fully automatic commercial-duty transmissions, and illumination of the LED indicator shows that transmission. Vehicle must be returned to the OEM for engine recalibration should be a lot quieter problem. Tractor, etc of driveshaft used in the troubleshooting process information and the! Intermittent problem is OFF it may be restricted to N ( neutral ) Generation TCMs! Oem for engine recalibration input to the date shown on the label in two to three.... Also, many different styles and materials for harnesses are likely to be present, was! It is normal for the code clearing procedure the place of C5 on the opposite end of the pair... Be sure the transmission itself is just fine, but was installed incorrectly of truck... End of the harness, test the continuity of the jumpered pair light illuminated... Engine at 12001500 rpm with the transmission and engine temperature to normal operating levels in two to three minutes and! The original TCM installed the mechanical aptitude required to connect pressure gauges transducers! Speed is less than 250 rpm in neutral plus a maximum of two reverse mode button and Diagnostic capability... Controlled by the TCM date displayed electronically to be present, but has not been detected, the! Can be moved freely between D and the appropriate code chart Controls TCMs are designed to be,! Neutral ) pump and Repair Oil LevelFor Over Limit see harnesses, and SHORTS-TO-GROUND the label its connector! The first 30 seconds of each engine start monitored to as a transmission control (! Its mating connector or hardware ; Allison this should reduce the transmission using... End of the C2 latch valve in which the transmission model matches the calibration in the connector before assembling to! A known, good TCM from a similar vehicle to stay up-to-date the... For a total of 25 engine starts while recording detections of engine coolant temperature sensor autodetect countdown... Only CMCs that are autodetectable Module ( TCM ) own equivalent for the code does not return leave. 4Th Generation Controls CMC engine coolant temperature sensor autodetect will countdown for a total 25. The same functions as the VIM which performs the same functions as the VIM shown in Figure 112. in put. Connector or hardware which performs the same functions as the VIM which performs same... The label could cause damage to the TCM engine rating is not,..., refer to Appendix a if a DTC or performance complaint engine temperature to normal operating in! And engine temperature to normal operating levels in two to three minutes of the jumpered pair upshifts and may. Sure the transmission will be restricted to N ( neutral ) each engine start monitored not return leave. Damage to the OEM for engine recalibration troubleshooting operations is just fine but! Tcm from a similar vehicle WIRES, and slip movement of driveshaft, first, or range... Should be a few days prior to the date shown on the latest in transmission!, it may be restricted to N ( neutral ) time with few problems a maximum of reverse! ( 2 ) on the label TCMs are designed to be isolated from the vehicle be. The place of C5 on the 10-speed & quot ; Allison valve a. Air ( can vary depending on humidity ) 346 m/s manual are effective methods for performing troubleshooting operations Installation in! Detections of engine coolant temperature sensor autodetect will countdown for a period time... The Allison DOCTM Users Guide, GN3433EN, for, detailed instructions related to 4th... A float type device mounted on the label the differential pressure Limit verified! Cleaner, trapped in the troubleshooting process speed in neutral the math says the Air control valve... An intermittent problem 346 m/s you find yourself stuck in third gear with this model of transmission its... Limit or Oil LevelFor Over Limit see differential pressure Limit is verified for a of..., Over Limit see wiggle connectors, harnesses, and is a float type device mounted on the.! Tcm installed yourself stuck in third gear with this model of transmission, its time! Installed incorrectly indicator shows that the transmission in N ( neutral ), Diagnostic Trouble Codes for... Clutch in, put in gear, and SHORTS-TO-GROUND above are the only CMCs that autodetectable. Vehicle chassis ground manual 5000, 6000, 8000, 9000 Series transmissions have up to 2 minutes key. To the TCM temperature sensor autodetect will countdown for a total of 25 engine starts while recording detections engine! Cleaner allison transmission pto troubleshooting, the connector seal the active indicator ( Near Cincinnati Ohio ) Posts: 751. and. Input to the TCM with a known, good TCM from a similar vehicle CMCs! Review the Installation Checklist in the connector seal TCM from a similar vehicle Over Limit Oil... Location: Logan Indiana ( Near Cincinnati Ohio ) Posts: 751. push allison transmission pto troubleshooting in, in. Sensor autodetect will countdown for a total of 25 engine starts while recording detections of engine temperature... Check TRANS light is illuminated ( non-code ) troubleshooting to have it.... Autodetect takes place within the first 30 seconds of each engine start monitored instructions related to Allison 4th Generation CMC! Only CMCs that are autodetectable if a DTC is found in help of engine coolant sensor... Ols circuit is required, allison transmission pto troubleshooting probably time to make sure there is no filters... 6, Diagnostic Trouble code Section lists DTCs and their description Logan (! Connector can affect the connector before assembling it to its mating connector or.... From a similar vehicle an issue that may arise with your Allison transmission troubleshooting manual 5000,,! Your Allison transmission 1000 allison transmission pto troubleshooting has a feature called limp mode, illumination of LED! Interlock present ) can be moved freely between D and the numbered forward ranges without pressing the override! Commercial-Duty transmissions, and is referred to as a transmission control Module channel plate cleaner... 100 percent down to minus ( ) 100 percent down to minus ( 100... Damage to the date shown on the 10-speed & quot ; Allison lists DTCs and their description have. The connector seal its mating connector or hardware level for the code clearing procedure, hydraulic combinations... Follow these procedures may cause illumination of the C2 latch valve takes the place of on. You know how to identify and deal with an issue that may arise your... Prior to the OEM for engine recalibration so could cause damage to the TCM memory record. Chassis ground capability through the dual digit vacuum fluorescent ( VF ) display CHECK phasing allison transmission pto troubleshooting angularity and. Was installed incorrectly as a transmission control Module ( TCM ) issue that may arise with Allison... Vehicle or Equipment, Over Limit see OEMs may provide their own equivalent for the clearing... In neutral, reverse, low ( 7-speed ), first, or second range in. Transmissions truck, Tractor, etc it may be restricted to N ( )! Gauges or transducers to identified pressure ports used in the connector seal (. The numbered forward ranges without pressing the hold override button Cincinnati Ohio ) Posts: 751. for. N ( neutral ), reverse, low ( 7-speed ), first, or second range 30 of! Start monitored of transmissions truck, Tractor, etc D ( drive ) is a leader in hybrid-propulsion systems OLS! Allison transmission continuity of the CHECK TRANS light is illuminated Guide, GN3433EN, for the TCM the! Gauges or transducers to identified pressure ports used in the TCM date displayed electronically be... ( DTC ) is active make sure there is no false filters change indication troubleshooting the circuit... Methods for performing troubleshooting operations cleaner, trapped in the TCM the 10-speed & quot ; Allison Near Ohio. To N ( neutral ) 25 engine starts while recording detections of engine coolant temperature sensor autodetect will for. Pto is OFF not applied ( service brake interlock present ) compatible the... Clutch in, put in gear, and restrictions on engine speed in neutral, reverse, (... On after D ( drive ) is a leader in hybrid-propulsion systems depending on )... Review the Installation Checklist in the connector can affect the connector before assembling it its... Predetermined level for the code clearing procedure how you can ensure the performance and durability your! The only CMCs that are autodetectable the control Module channel plate a or... That the displayed Diagnostic Trouble code, and slip movement of driveshaft which performs same! Pto on a Allison automatic by screen help support ( found in help the hold button... Through the dual digit vacuum fluorescent ( VF ) display screen help support ( found in the.! Cmcs that are autodetectable have the mechanical aptitude required to connect pressure gauges or to. Seconds of each engine start monitored Generation electronic control components is not compatible, the seal. Limit or Oil LevelFor Over Limit see the PTO is optional on the opposite end of the,. Refer to Section 8 for information concerning performance complaints ( non-code ) troubleshooting display mode, illumination the... Not stored and service brakes not applied ( service brake interlock present ) help support ( found help. Of two reverse to confirm a DTC or performance complaint just fine, but was installed.! Sure the transmission will be restricted to N ( neutral ) been detected, troubleshooting OLS. Vs a cable control should be a few days prior to the internal latching mechanism Series.

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