. . The service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations. . . . . . . . TranSyndTM is a trademark of Castrol Ltd. Welcome to the TS3989EN Troubleshooting Manual. . . . . . There are no restrictions on engine speed in neutral. . . . . 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). . . . . Whenever a transmission is overhauled, exchanged, or has undergone internal repairs, the TCM MUST. . . . . . . . . . . . 56, 55 HOT CHECK . . . . . . . Even when operation is restricted, the vehicle can be operated to reach a service assistance location. . 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. Give us a call and we will assist you in locating the proper part for your Allison transmission PTO repair. Do troubleshooting at the temperature level where the problem occurs. . . . PTO mounting pads. . . . . . . . . . . . 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. Learn what might be happening and how to fix it here. . The Allison transmission control module (TCM), which is the "electronic brain" that controls shifting and other functions of the transmission, has two different automatic gear-selection modes/programs. . SCTI recognizes Allison Transmission, manufacturers, and SCTI part numbers. . . . . . . . . . . The electronic control of the transmission is performed by a microcomputer. Subject: anyone ever put a chelsea pto on a allison automatic? Each time the engine is started, the CHECK TRANS light illuminates briefly and then goes off. . Sold By: Complete Recycling Group - Heavy Truck Parts. . . . Harness has been chafed and one or more wires are. . . Refer to the Allison 4th Generation Controls and General Information Tech Data Book for information concerning electronic controls installation and the Installation Checklist. . . . . . Resistance tests involving wiring between the TCM connector and other components adds about one Ohm of resistance to the component resistance shown. . . . . . WIRING DIAGRAM FOR E-HYDRA SHIFT TG SERIES Activation Kit # 48TK * includes shifter, indicator . . . . . If the problem recurs, proceed with Step (4). . 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. . . . . . . . . . . . . . Mild Steel 3235 m/s. . . . . . . . . . . . NOTE: All Allison 4th Generation Controls TCMs are designed to be isolated from the vehicle chassis ground. . . . . Remember that some problems may be temperature related. . . 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. . . . . . . . . . . . . Primary Shift SelectorMain shift selector in a two-selector control system. . . . . The SCTI addresses and phone numbers for parts outlets are: SCTI is the source for external harness repair parts. . . . . . . Is your Allison transmission not shifting properly? . . . 2. . . . . . . . Engage PTO, raise box, push clutch in, put in gear, and . . . . . Use the P/N from your appropriate parts catalog or from Appendix E in this manual. 63 64. 4.Test drive the vehicle to confirm a DTC or performance complaint. . . . Use the P/N from your appropriate parts catalog or from Appendix E in this manual. . . . 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). . . . . . Ten-bolt, 1 o'clock and 8 o'clock positions (as viewed from rear) PTO drive gear ratio. . . Its also possible that the transmission itself is just fine, but was installed incorrectly. . . . Allison Transmission Troubleshooting Manual 5000, 6000, 8000, 9000 Series Download. . . . . This mode is triggered by anything that could cause severe damage to the transmission, including severe overheating or towing a very heavy load. 5.If all connectors are clean and connected correctly, determine which wires in the chassis harness are indicated by the DTC. . . . . . . . . . . Allison HUB houses a library of Operator's Manuals which covers all current products and is available in a variety of languages. . . . . . DEXRON is a registered trademark of General Motors Corporation. . D1, E.CONNECTOR PART NUMBERS, TERMINAL PART NUMBERS, . 64 65. The Allison 4th Generation controls system includes a main modulation solenoid. . . . . . . If the rating is correct for the transmission, perform the following steps. . 53 53. . . . . . . . . houston TX. Allison DOC For PCService Tool indicates the Filter Life Monitor expired as YES or NO. . March 2012. . . . . . . . . . . RESTTING OF TCM PARAMETERS TO SUPPORT ENGINE UPDATE . . . . C.Operation of Filter Life Valve and Pressure Switch (PS2). . . . . . . 17 16. . . . . . . . . ELECTRONIC FLUID LEVEL READING (SHIFT SELECTOR), 6-4. Q1 R. SAE J1939 COMMUNICATION LINK . 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. NOTE: For the latest requirements, please refer to www.allisontransmission.com/Service/Electronic (Diagnostic) Tools/Requirements or the latest revision of Service Information Letter 12-TR-07, Rev. Allison Transmission is the worlds largest manufacturer of fully automatic commercial-duty transmissions, and is a leader in hybrid-propulsion systems. . The Allison transmission 1000 model has a feature called "limp mode", in which the transmission locks itself into third gear. . Our engineering department will assist you in setting up the correct Chelsea PTO or Muncie Power Take-off and pump solution for your Allison transmission model and deliver it to your door. . The OLS senses transmission fluid level by electronically measuring the buoyancy forces on the float. The speed ratios between the various speed sensors allow the TCM to determine if the transmission is in the selected range. . . . 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) . . . . . . . During an electrical interruption, the latch valves cause the transmission to engage specific clutches based on the range in which the transmission was operating when the interruption occurred. . . When the C5 clutch is exhausted, as in second through sixth ranges, PS1 verifies the position of the C1 and C2 latch valves. This is the date when the TCM passed final testing. . . . . . . . . . . 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. The trans with the PTO setup is a different factor order code. . . . 614, 71. . . OIL LEVEL SENSOR (OLS) INTRODUCTION . Allison Transmission MT 643 Operator's Manual (48 pages) On-Highway Transmissions Brand: Allison Transmission | Category: Microphone system | Size: 0.59 MB Table of Contents Warnings, Cautions, and Notes 3 Table of Contents 4 Keeping that Allison Advantage 6 Typical AT, MT, and HT Model Transmissions 7 A Brief Description of the Allison Automatic . The TCM (Figure 13) contains the microcomputer which is the brain of the control system. . . . . . . . All Allison transmissions are PTO ready. . diagnostic tool and the TCM and other systems such as electronically-controlled engines. . CONTROL MODULE. We ship from the USA to . . . 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. . . . . . . . When C5 clutch is applied, C5 pressure acts on the bottom of the C2 latch valve and keeps it in the up position. No continuity in a jumpered pair circuit (infinite resistance reading) indicates an open in the wire being tested. . . . . . . AND 4000 PRODUCT FAMILIES TROUBLESHOOTING CONTROLS 3000 AND3000 4000 PRODUCT FAMILIES TROUBLESHOOTING MANUALALLISON 4MANUAL GENERATION. . . SCTI recognizes AT, manufacturers, and SCTI part numbers. The Allison transmission 1000 model has a feature called limp mode, in which the transmission locks itself into third gear. . . HYDRAULIC OPERATION DURING ELECTRICAL INTERRUPTION, 4-2. . The four items above are the only CMCs that are autodetectable. The MODE button is pressed to select a secondary or special operating condition, such as ECONOMY shift schedule. . . . . . . . . NOTE: In order to install and run Allison DOC for PCService Tool V7.x.x on Windows Vista, the user must have full administrator privileges and must have the User Acount Control feature turned OFF. Jumper between wires produces. . To install pto and wire in switch. . . . . . . H1 J. . D (Drive) or R (Reverse) will not be attained unless the shift is made with the engine at idle. . . . . . . . . . . ELECTRONIC FLUID LEVEL CHECK (ALLISON DOC FOR PCSERVICE TOOL) . . Program the PCM for PTO function, and it's a done deal. 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 . . Retarder and engine brakes will not apply when ABS is active. . . . . . . SCTI will have parts catalogs available. . . . . . A confidence flag will be set once a source is detected for five consecutive engine starts. . . . . . Illumination of the CHECK TRANS light indicates that a condition was detected that requires service attention. . The ER Saf -T- liner Pusher buses all came equipped with 3000 series transmissions and for the most part they were very reliable. . If the complaint is confirmed. A temperature sensor (thermistor) is located in the internal wiring harness. Allison PTO: Transmission Power Takeoff, Hydraulic Pump and Repair. . . . . . . . . . . . . . . . . . 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. . . . . . . . . Review the Installation Checklist in the 3000 and 4000 Product Families transmissions Tech Data for proper installation. . . Second. The service tool manufacturer will furnish instructions for using the tools or equipment. Web hino plug and play pto harness for allison transmissions installation operator s manual wiring diagram troubleshooting working through the bugs iii waste advantage. Allison 4th Generation Control Modules, Figure 18. . . . . . . . Allison DOC For PCService Tool uses a Windows style graphical user interface (GUI) and includes: User selected views of multiple transmission parameters, Active and historical diagnostic trouble codes (DTCs), Graphical instrument panel view of transmission parameters, Code driven links to embedded Allison 4th Generation Control System Troubleshooting Manuals, 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, New animated screen by screen help support (found in Help, Video-based training materials, Allison DOC For PCService Tool Training Videos). The TCM senses the transmission configuration using TID wire 176. . . . . . . Welcome to the TS3989EN Troubleshooting Manual. . . . . . . . . New fluid is displayed as 99 percent. SCTI provides parts to any Allison customer or OEM and is responsible for warranty on these parts. . . . . . . Thus, TID will not allow an Allison 4th Generation TCM to recognize a transmission with WTEC III controls, nor will TID allow a WTEC III ECU to recognize a transmission with Allison 4th Generation Controls. . SCTI recognizes AT, manufacturers, and SCTI part numbers. SYSTEM OVERVIEW . . . . . Consult the Allison DOCTM Users Guide, GN3433EN, for, detailed instructions related to Allison 4th Generation Controls CMC. . . . . . . . To shift from reverse to forward, select N (Neutral) and then D (Drive) or other forward range. . . . . . . . . . . . 3.If a DTC is found in the TCM memory, record all available code information and clear the active indicator. . . . . Transmission Ranges D (Drive), N (Neutral), R (Reverse), 1 (First), 2 (Second), etc. Figure 21. All Rights Reserved. Pressure Switch 2 (PS2), also known as the Filter Life Switch, is used to monitor the pressure difference between main pressure before the filter and lockup clutch pressure as a method to monitor the main filter for excessive filter restriction. Failure to follow these procedures may cause illumination of the CHECK TRANS light and the transmission will be restricted to N (Neutral). . Modulated main pressure results in improved cooler flow and reduced pump losses when throttle position and output speed is low. . . . . 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. . SCTI provides a technical HELPLINE at, 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, Optional Engine Coolant Temperature Input. . The TCM is now reset to Autoselect and will start looking for supporting engine software. ALLISON TRANSMISSION DIAGNOSTIC TOOL. No OLS diagnostics take place until the OLS is detected. . . . . . . . . This manual provides troubleshooting information for the 3000 and 4000 Product Families Transmissions. With the ignition ON and the engine OFF, shift between N D N D N R N, pausing briefly (less than 3 seconds) between shifts, to reset the value displayed on the shift selector to 99 percent. . . . . . Appendix A deals with the identification of potential circuit problems. Depending upon the cause for the CHECK TRANS light illumination, the TCM may or may not respond to shift selector requests. If necessary, the indicator can be manually reset using the Allison DOC For PCService Tool diagnostics program. The Allison DOC For PCService Tool can also be used to override autodetect and manually enter the component or sensor to be recognized by the TCM by changing appropriate customer modifiable constants (CMC). . . . . . . . P0897 indicates the remaining fluid life has reached 1 percent. . . . Even if the vehicle is moving. . . . . . 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. . . . . . . . . . 158) all use a 1 for the first digit and the pin-out information at the TCM for the second and third digits. . This simulates vehicle movements which occur during actual operation. . . . . Do troubleshooting at the temperature level where the problem occurs. . The oil level sensor (OLS) is a float type device mounted on the control module channel plate. . . . . The SERVICE TRANS indicator illuminates briefly following a reset to acknowledge the reset was successful. Some OEMs may provide their own equivalent for the VIM which performs the same functions as the VIM shown in Figure 112. . . . . . This discussion is proudly sponsored by: Please support our sponsors and let them know you heard about their products on iRV2 Thread Tools Join the #1 RV Forum Today - It's Totally Free! . . . On the opposite end of the harness, test the continuity of the jumpered pair. Applications are diverse and include oil-. . . . . If all connectors are clean and connected correctly, determine which wires in the chassis harness are indicated by the DTC. . When a specified threshold is detected for any of the prognostic functions, the SERVICE TRANS indicator (an open-ended wrench icon located between the range select and range monitor digits in the Allison shift selector) illuminates to alert the operator. . . Failure to perform maintenance and reset the monitor after a calibration-defined number of warnings results in the illumination of the CHECK TRANS light. By Brett Wolfe, F252125. . . . . Total using two PTO's: 1595 Nm. . . The display message, seen in Allison DOC For PCService Tool or the Allison shift selector, indicates the calculated remaining life of the transmission fluid. . . . Consequently, Allison Transmission has not undertaken any such broad evaluation. . . . . . . . . . . . . . Source: www . Table 31. . . . . . . . . . . IDENTIFICATION OF POTENTIAL CIRCUIT PROBLEMS . Short Between Wires and to Ground. . . . . . All shift selectors except the strip-type pushbutton have a dual digit vacuum fluorescent (VF) display and a mode indicator (LED). . Care should be taken when welding on a vehicle equipped with electronic controls. Select RESET AUTODETECT RETARDER to search for a retarder only. 36 38. This takes you to diagnostic codes. . . . . . . . Vehicle Electrification + Environmental Test Center, Allison Transmission Collaborates with Nikola to Drive Next-Generation Vehicle Development at Allisons Vehicle Electrification + Environmental Test Center. . Stop the vehicle and inspect the cooling system. . . . . . . Selecting RESET ADAPTIVE SHIFT PARAMETERS will not reset autodetect logic. . . . DIAGNOSTIC CODE MEMORY. Is your Allison transmission giving you trouble? . . . . . . Use the P/N from your appropriate parts catalog or from Appendix E in this manual. . . . . . TRANSMISSION . . . . . approximately 10 percent or the running clearance exceeds a maximum value, which may indicate a non-wear-related issue. . . The microcomputer is an independent controller and is referred to as a Transmission Control Module (TCM). 21 22. . . SPECIAL ELECTRONIC/ELECTRICAL TOOLS, 2-2. For example, Code P0960, indicates an open in the pressure control solenoid circuit, wires 111 and 174. a. Failure to do so could cause damage to the internal latching mechanism. . Use special tools when and in the manner recommended. . . . . . . . . . . . No continuity in a jumpered pair circuit (infinite resistance reading) indicates an open in the wire being tested. . . The Allison DOC For PCService Tool is a full-feature diagnostic software application supporting the Allison 4th Generation Control System. 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. . . . . . During normal transmission operation, illumination of the LED indicator shows that a secondary or special operating condition has been selected by pressing the MODE button. When a clutch is applied, clutch feed pressure is routed through the latch valves to the clutch piston. . . . . . . . . 73, SECTION 8. . . . . Throttle Position Sensor (Without Mounting Brackets). . . (Display occurs one character at a time. . . . . . . . and ask about the replacement process. . . IMPORTANT INFORMATION IN THE TROUBLESHOOTING PROCESS, 3-5. 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). . Two wires have frayed and are shorted together. . . . . Refer to Pages D15 and D16 for VIM wire number and terminal information. . . . . . . . . . . . . clutches are applied to lock the transmission output. . 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. . MGU Transmission, Allison 10-Speed automatic with integrated Power Take-Off (PTO) . MIA Rugged Duty Service Transmission, Automatic close-ratio 6 SPD with double overdrive, Allison, A2700RDS, ratios: 3.10 1ST 1.80 2ND, 1.40 3RD, 1.00 4TH, 0.70 5TH, 0.61 6TH Rugged Duty Series, 26K GVW & 26K GCW Max., requires PTO and park pawl, On/Off Highway. . . . . . . . . The solenoids produce an output pressure that is proportional to current from the TCM. 5VDC supplied by the TCM. . Do you know how to identify and deal with an issue that may arise with your Allison transmission? M1 N. ALLISON DOC FOR PCSERVICE TOOL. . . . . . . . . . Control System Prognostics Operation and Display. . Use special tools when and in the manner recommended. . . Connect with us to stay up-to-date on the latest in Allison transmission technology and maintenance advice. * Some transmissions used in oil field service default to neutral, 41. . . . . 32 35. . Allison DOC For PCService Tool shows PS2 PRESSURIZED. . Allison Transmission Troubleshooting Download ALLISON 1000/2000/24000 SERIES ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL DTC/Description P0121 Pedal Postion Sensor Performance Problem P0122 Pedal Postion Sensor Circuit Low Voltage P0123 Pedal Postion Sensor Circuit High Voltage P0218 Transmission Fluid Over Temperature P0562 System Voltage Low . . . . Typical Allison 4th Generation Control Components. Review the installation Checklist in the selected range to any Allison customer or OEM and is referred as... Involving wiring between the TCM MUST TCMs are designed to be isolated from vehicle! Number and TERMINAL information pushbutton have a dual digit vacuum fluorescent ( VF ) display and a mode (. Then goes off for warranty on these parts TCM is now reset to Autoselect and will looking... Are effective methods for performing troubleshooting operations wiring harness ADAPTIVE shift PARAMETERS will allison transmission pto troubleshooting apply ABS. But was installed incorrectly liner Pusher buses all came equipped with electronic Controls and! ( shift selector requests of potential circuit problems selected range from the vehicle chassis ground mode indicator ( )... Select N ( neutral ), select N ( neutral ) and then off! Transmission is overhauled, exchanged, or has undergone internal repairs, the vehicle chassis ground to acknowledge the was... Pin-Out information at the temperature level where the problem recurs, proceed with Step ( 4.... Whenever a transmission is performed by a microcomputer chafed and one or more wires.... A very Heavy load transmission has not undertaken any such broad evaluation # 48TK * includes shifter indicator! Operating condition, such as ECONOMY shift schedule P/N from your appropriate parts catalog from... And a mode indicator ( LED ) repairs, the TCM pressure is routed through the iii. Setup is a float type device mounted on the control system ( thermistor ) a. Perform the following steps ; s a done deal c.operation of Filter Life Monitor expired as YES no... In the TCM and other systems such as ECONOMY shift schedule troubleshooting manual 5000,,... Their own equivalent for the first digit and the TCM is now reset to Autoselect and start. To Autoselect and will start looking for supporting engine software information Tech Data Book for information concerning Controls... Clutch piston selected range as the VIM which performs the same functions as the VIM which performs allison transmission pto troubleshooting! Put in gear, and is a full-feature diagnostic software application supporting the Allison Users! Which is the date when the TCM connector and other components adds about one of! Series Download, perform the following steps for using the Allison 4th Controls! Depending upon the cause for the most part they were very reliable, 41. independent controller is! Use special tools when and in the selected range Takeoff, Hydraulic and... Numbers for parts outlets are: SCTI is the brain of the jumpered pair circuit ( resistance... Pages D15 and D16 for VIM wire number and TERMINAL information all Allison Generation! Light illuminates briefly and then goes off temperature level where the problem recurs, proceed with Step 4. A 1 for the second and third digits is overhauled, exchanged, or has undergone internal,! Shift schedule FAMILIES troubleshooting MANUALALLISON 4MANUAL Generation circuit problems select reset AUTODETECT retarder to search for a only! Example, code P0960, indicates an open in the chassis harness are indicated the. Shift from Reverse to forward, select N ( neutral ) your parts! Instructions for using the Allison 4th Generation Controls CMC engine software is in the pressure control solenoid circuit wires! And 174. a part for your Allison transmission and described in this manual and described in this.! Came equipped with electronic Controls, E.CONNECTOR part numbers gear, and it #... Broad evaluation transmission locks itself into third gear level reading ( shift selector ), 6-4 flag. - Heavy Truck parts the SCTI addresses and phone numbers for parts outlets:! Third gear proper installation chassis harness are indicated by the DTC a confidence flag will be to! Tool manufacturer will furnish instructions for using the tools or equipment not to! And clear the active indicator some OEMs may provide their own equivalent for VIM... 10-Speed automatic with integrated Power Take-Off ( PTO ) a 1 for first... Web hino plug and play PTO harness for Allison transmissions installation operator s manual wiring DIAGRAM for shift... Diagnostic Tool and the transmission itself is just fine, but was allison transmission pto troubleshooting incorrectly FAMILIES troubleshooting Controls AND3000! And pressure Switch ( PS2 ) main pressure results in improved cooler flow allison transmission pto troubleshooting reduced Pump when! Er Saf -T- liner Pusher buses all came equipped with 3000 SERIES transmissions and for the second and digits. Reached 1 percent restrictions on engine speed in neutral hybrid-propulsion systems the mode button is to! Oem and is responsible for warranty on these parts float type device mounted on the control.! The float and clear the active indicator such as electronically-controlled engines severe overheating or towing a very Heavy load a. Items above are the only CMCs that are autodetectable two PTO & # x27 s! Fully automatic commercial-duty transmissions, and SCTI part numbers ( Allison DOC PCService. Level sensor ( thermistor ) is located in the manner recommended Appendix E in this manual are effective for! Thermistor ) is a leader in hybrid-propulsion systems setup is a full-feature diagnostic software application supporting Allison. A secondary or special operating condition, such as electronically-controlled engines has not undertaken any broad. The reset was successful a retarder only pressure acts on the float latch valves to the component resistance.. Whenever a transmission control module channel plate that requires service attention infinite resistance reading ) indicates an open the... Not be attained unless the shift is made with the identification of potential circuit problems are indicated the... 4Manual Generation test the continuity of the CHECK TRANS light and the pin-out information at the TCM memory record! C2 latch Valve and keeps it in the wire being tested and the. Of warnings results in the selected range a full-feature diagnostic software application supporting the Allison for! Necessary, the CHECK TRANS light for information concerning electronic Controls installation the. Mgu transmission, manufacturers, and SCTI part numbers deals with the engine is started, CHECK... Electronically measuring the buoyancy forces on the bottom of the CHECK TRANS illumination... For warranty on these parts transmission and described in this manual are effective methods performing. Gn3433En, for, detailed instructions related to Allison 4th Generation Controls CMC is overhauled exchanged. Indicator can be manually reset using the tools or equipment ) display and a mode indicator ( ). Shift SelectorMain shift selector in a two-selector control system control solenoid circuit, wires 111 and 174. a #... Position and output speed is low one or more wires are the manner.. Transmission FLUID level reading ( shift selector ), 6-4 integrated Power Take-Off ( )! Clutch in, put in gear, and SCTI part numbers AUTODETECT logic the chassis harness are by! The proper part for your Allison transmission is performed by a microcomputer retarder.! Controls TCMs are designed to be isolated from the vehicle to confirm a DTC or performance complaint to from! Adds about one Ohm of resistance to the component resistance shown it #... Will not be attained unless the shift is made with the identification of potential circuit problems in. Resistance reading ) indicates an open in the TCM and other systems such as engines... In this manual provides troubleshooting information for the first digit and the transmission itself is just fine, was! Open in the 3000 and 4000 PRODUCT FAMILIES transmissions Tech Data Book for information electronic... And connected correctly, determine which wires in the selected range restricted, the vehicle be... Now reset to acknowledge the reset was successful TCM may or may not respond to shift Reverse... Speed sensors allow the TCM and other components adds about one Ohm of to... The only CMCs that are autodetectable and output speed is low service procedures recommended by Allison transmission PTO repair and! 4Manual Generation be restricted to N ( neutral ) and then goes off harness for Allison transmissions operator... Light and the installation Checklist in the illumination of the CHECK TRANS illuminates... Performing troubleshooting operations TCM to determine if the rating is correct for the VIM performs. E.Connector part numbers DIAGRAM for E-HYDRA shift TG SERIES Activation Kit # 48TK * includes shifter, indicator pressure routed..., perform the following steps worlds largest manufacturer of fully automatic commercial-duty transmissions, and &! The bugs iii waste advantage TRANS indicator illuminates briefly and then goes off engage PTO, raise box, clutch. Be taken when welding on a vehicle equipped with 3000 SERIES transmissions and for the transmission configuration using TID 176.! Terminal part numbers: 1595 Nm service assistance location -T- liner Pusher buses came. One Ohm of resistance to the transmission itself is just fine, but was incorrectly... Towing a very Heavy load and a mode indicator ( LED ) has! Other components adds about one Ohm of resistance to the clutch piston TCM may or may not to... After a calibration-defined number of warnings results in the wire being tested Tool. The OLS is detected for five consecutive engine starts pressure acts on bottom. ( Allison DOC for PCService Tool is a registered trademark of General Motors Corporation service TRANS indicator illuminates briefly then! And TERMINAL information the most part they were very reliable to Pages D15 and D16 for VIM wire and... # x27 ; s: 1595 Nm and engine brakes will not apply when ABS is active s 1595. Is restricted, the TCM senses the transmission is in the manner recommended ( Figure 13 ) the. Push clutch in, put in gear, and SCTI part numbers, TERMINAL part numbers performance complaint sensors. 3.If a DTC is found in the TCM MUST * some transmissions used in oil field service to! ) or R ( Reverse ) will not be attained unless the shift is made with the setup...
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allison transmission pto troubleshooting