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";s:4:"text";s:19840:"To service Allison 4th Generation Controls, the technician must understand basic electrical concepts. . . . . . MagiKey is a registered trademark of NEXIQ Technologies, Inc. Teflon is a registered trademark of the DuPont Corporation. . . . . . * A power take-off (PTO) is optional on the Allison 1000 in the 3500 cab and chassis trucks. . Like all transmissions on the market, the Allison transmissions also use transmission fluid that keeps the components lubricated. Allison DOC For PCService Tool displays clutch condition as OK or NOT OK for each clutch, C1 through C5. The vehicle interface module (VIM) provides relays, fuses, and connection points for interface with the output side of the vehicle electrical system. . . . . . . . . . . . . Clean dirty terminals or connectors with isopropyl alcohol and a cotton swab, or a good quality. 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. First, set correct backlash between adapter and PTO and set the gaskets aside. . . . . . . Do troubleshooting at the temperature level where the problem occurs. . . . . . . Refer to Pages D15 and D16 for VIM wire number and terminal information. . . . . . . . . . . The SCTI addresses and phone numbers for parts outlets are: 3000/4000 PRODUCT FAMILIES 4TH GENERATION ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL. Inspect all connector terminals for damage. . . . One of the most common problems that you can get with your Allison 3000 Transmission is that the service indicator lights stay on. . . . . . . . 4.Test drive the vehicle to confirm a DTC or performance complaint. . 112 A. . The lamp strategy for the icon varies, either flashing, or steady, to indicate to the operator which function detected the threshold value was reached. . . . 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). . . . . . . . . . . Allison 9000 Series transmissions have up to 8 forward speeds plus a maximum of two reverse . All Rights Reserved. . Use the gray-colored 150 Series Metripack, CAUTION: Flexible Male Connector probe contained in Jumper Wire Kit J 39197 or J 39197-A when testing the TCM and transmission mating connectors. . . . . . 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. . . 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. . . 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. Message over the SAE J1939 communication interface. . Description of the 3000 and 4000 Product Families Allison 4TH Generation Electronic Control system. 55, 54. SCTI provides parts to any Allison customer or OEM and is responsible for warranty on these parts. . Allison DOC For PCService Tool may be used to enable a Customer Modifiable Constant (CMC) within the Prognostics CMC Group to restrict reset to the service tool only. . . . . . . When a clutch is applied, clutch feed pressure is routed through the latch valves to the clutch piston. (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. . . . . . This mode is triggered by anything that could cause severe damage to the transmission, including severe overheating or towing a very heavy load. . . . Even when operation is restricted, the vehicle can be operated to reach a service assistance location. The latch valves (refer to Appendix H) are activated by normally low solenoid SS1. . R1. . . . 58 A. . . . . We make every effort to keep our service information current and accurate. Figure 19. . . Description of the electronic control system components. . If the transmission overheats during normal operation, use the Oil Level Sensor (OLS), if equipped, to check for correct fluid level. . . . . Strip pushbutton shift selectors are used primarily by non-North American OEMs. . Isolate and repair the short. . . . . . . . . . . . . These warnings and cautions are not exhaustive. . The Transmission Rebuilders Network is the place where the industries best transmission rebuilders work together to help solve the most complex automatic transmission problems. Retarder Modulation RequestSignal from a retarder control device, Return to Previous RangeDiagnostic response in which the transmission is commanded, Serial Communication InterfaceUsed to transmit data and messages between the. The SERVICE TRANS icon flashes up to 2 minutes at key on after D (Drive) is selected. . . . . SCTI recognizes AT, manufacturers, and SCTI part numbers. 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. New fluid is displayed as 99 percent. . . . To install pto and wire in switch. . . Allison transmissions built in the mid-2000s had a recall issued for their TCM module. . . Furthermore, TID only works when the controller and transmission have the same generation controls. . . . . . . . . . . . . According to John Hylton, application engineering, Allison Transmission, "The PTO gears are in constant mesh with the transmission gears after installation. Remember that some problems may be temperature related. . . . . . This feature is not available with 7-speed transmission models. . Welcome to the TS3989EN Troubleshooting Manual. . . . . . . . . . . . . Whenever a transmission is overhauled, exchanged, or has undergone internal repairs, the TCM MUST. . Use the P/N from your appropriate parts catalog or from Appendix E in this manual. . . . . Description of the 3000 and 4000 Product Families Allison 4. . . . . . . . . . However, even these revolutionary pieces of equipment can have problems. . . . OUTPUT FUNCTIONS . . . . . Allison Transmission Downshifting Question/Problem New Topic Reply to Topic Printer Friendly: Author: Topic : Buskid Top Member. . . . . . . Use special tools when and in the manner recommended. Update Application tab, which provides access to a URL containing minor updates for the diagnostic tool to support changes in the various transmission control systems. . . . Clean dirty terminals or connectors with isopropyl alcohol and a cotton swab, or a good quality, non-residue, non-lubricating, cleaning solvent such as LPS Electro Contact Cleaner or LPS NoFlash Electro Contact Cleaner. will last you a very long time with few problems. . . Two wires have frayed and are shorted together. Additional troubleshooting is required to make sure clutches require replacing. . . install a new TCM. . The oil level sensor is available on any 3000 and 4000 Product Families transmissions except the 3000 7-speed transmissions. . . . . This occurs when the remaining clutch life reaches. . . . . NOTE: Illustration is not to scale. If yours appears to have never been replaced, your best bet is to. . . . . . . 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. . Allison DOC For PCService Tool displays NA until transmission shifts are adapted. . . . . . . . . . . . . . . . . The strip pushbutton shift selector does not have a MODE button, diagnostic capability, or adjustable illumination. (3)Update Application tab, which provides access to a URL containing minor updates for the diagnostic tool to support changes in the various transmission control systems. Allison Transmission PTO Units For All Models. . . . . Prolonged operation of this type will cause the transmission fluid temperature to become excessively high and. . . . . . . . . . . . . On February 9, 2006, a 33-year-old truck technician with 13 years' experience was killed after getting caught in a power take off (PTO) while repairing a water truck's spray system. . NOTE: Transmission shifts will now be in the unadaptive (base) state, so it will be necessary to drive the vehicle to allow shift to converge. Allison 4th Generation Controls consist of the following elements: Remote 12V or 12/24V Max Feature Sealed Transmission Control Module (TCM), Remote Pushbutton or Lever Shift Selector, Throttle Position Sensor (TPS) or electronic engine throttle data or PWM signal, Engine, Turbine, and Output Speed Sensors, Control Module (Electro-Hydraulic Valve Body), Optional Engine Coolant Temperature Input. . . . . . . . . . . . . . . . . . . . . . . . . . . Changes in sump fluid temperature are indicated by changes in sensor resistance, which changes the signal sent to the TCM. . . . . . 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. . . . . MGU Transmission, Allison 10-Speed automatic with integrated Power Take-Off (PTO) . . . . . . . . . . . . . . . . . . . . But things may go wrong rather unexpectedly. . Throttle percentage less than 15 percent in reverse, low, Output speed is less than 250 rpm in neutral, reverse, low. . . . . . . . . . Oil level sensor autodetect will countdown for a maximum of 25 engine starts while recording detections of an OLS. . SCTI provides parts to any Allison customer or OEM and is responsible for warranty on these parts. . 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 VIM for 24V systems has all 24V relays. Connect with us to stay up-to-date on the latest in Allison transmission technology and maintenance advice. . . Allison Transmission is the worlds largest manufacturer of fully automatic transmissions for medium- and heavy-duty commercial vehicles and is a leader in hybrid-propulsion systems for city buses. Fax 713.466.9839 Use the P/N from your appropriate parts catalog or from Appendix E in this manual. . . . . . Remember to do the following when testing for shorts and opens: Minimize movement of wiring harnesses when looking for shorts. HYDRAULIC OPERATION DURING ELECTRICAL INTERRUPTION, 4-2. . With proper maintenance and normal usage, Allison transmissions will last you a very long time with few problems. 58, 57 FLUID RECOMMENDATIONS . . . . . . . . . . The SCTI addresses and phone numbers for parts outlets are: SCTI is the source for external harness repair parts. . . . . Multiple throttle sources can be detected on a single engine start and multiple confidence flags can be set. . SPECIAL ELECTRONIC/ELECTRICAL TOOLS . . . . The Allison 4th Generation controls system includes a main modulation solenoid. . . . . . . . . . . 5VDC supplied by the TCM. . Refer to Section 6. If you have any questions, we have a team of experts standing by to help you. . This is the date when the TCM passed final testing. . . . . . . . . . . . . . . Which of these potential problems apply to your situation? . . Remember to do the following when testing for shorts and opens: Minimize movement of wiring harnesses when looking for shorts. . . . . If display is flashing, shift is inhibited. Suprman said: I have a few Allison transmissions. If the code does not reappear, it may be an intermittent problem. We can rebuild or repair your Chelsea PTO or Muncie PTO off your Allison Transmission for you if you'd like. . . . . Use the Allison DOC. . . Ten-bolt, 1 o'clock and 8 o'clock positions (as viewed from rear) PTO drive gear ratio. . . . . 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, Upload manuals that we do not have and get, SHIFT SELECTOR TERMS AND DISPLAY INDICATIONS, 1-11. . Allison. . . . 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. . . . Refer to Section 5-2 for this procedure. . . Allison DOC (Diagnostic Optimized Connection) For PCService Tool is a PC-based diagnostic tool for use with 3000 and 4000 Product Families transmissions. . . 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. . Always blow or shake any excess cleaner from, the connector before assembling it to its mating connector or hardware. . Working underneath the truck while it was still running, a protruding set screw on the PTO drive shaft caught the collar of his coveralls and quickly entangled him. . . . . . Copyright 2008 Allison Transmission, Inc. P.O. . . . Internet connection capability with Internet Explorer 5.0.1 or greater. . If high temperature in either the engine or transmission persists, stop the engine and have the overheating condition investigated by maintenance personnel. . . . . . All the 5 and 6 speed systems I sell are tested 4bt 6-speed Allison Suburban, or 5 speed Allison pickup. . . . Take time to review the Table of Contents and the manual. . . . 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. . . Modulated main pressure results in improved cooler flow and reduced pump losses when throttle position and output speed is low. . . . Rebuilt, New and Used Allison transmission Power Take Offs from Parker Chelsea, Muncie and More. . . . . . Table 32. . . . Determine the fluid level before beginning the OLS troubleshooting. Wiggle connectors, harnesses, and splices when looking for opens. The engine must be compatible with the transmission rating. . TRANSMISSION . . . . . . . . . . Topics include Power Take-Off (PTO) operation, shift selectors, prognostics, diagnostics, care and maintenance and even driving tips. . . . . . . . . . . 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. . . . . . . . . Technicians unsure of making the required tests should ask questions of experienced personnel or find instruction. . . . . If the code reappears, refer to Section 6, Diagnostic Trouble Code, and the appropriate code chart. . . . . . . . . . . . . . . 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. . . . . . . USA 3368 Posts. . . . . . . . . . . . . . . . TM TRANSMISSION SERVICE Condition: The SERVICE TRANS indicator illuminates, indicating the need for clutch maintenance. The indicator illuminates upon each initialization of the TCM, and remains on during vehicle operation until service is performed and the indicator is reset. . . . 1.Begin troubleshooting by determining the transmission fluid level and TCM input voltage. Clear any DTCs that may be present and test drive the vehicle to confirm the repair. . . . . . . . March 2012. . . . Appendix A deals with the identification of potential circuit problems. . . . . . . . . When the main filter gets excessively restricted by debris, lockup pressure drops. . .ii IMPORTANT SAFETY NOTICE . . . . Use special tools when and in the manner recommended. . . . . . If your implement/pump will fit, it is PTO capable. . . . enhance vehicle handling. Repair parts for the external harnesses and external harness components must be obtained from St. Clair Technologies Inc. (SCTI). . . . This takes you to diagnostic codes. . . . . They have a 24 bolt bell housing with approx 21 inch diameter pattern. . Find a facility. . . . Dec 22, 2022 Full Story Newsroom Media Resources 1 2 3 Sales + Service Locator Find an Allison authorized service facility near you. . 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). . . . . . . . . . . 36 38. . . Most troubleshooting tests consist of determining resistance, continuity, and testing for shorts between wires and to ground. . . . . . . . If the complaint does not return, leave the original TCM installed. . . . . . (2)TCM Reprogramming tab, used to enable the reprogramming capability of the Allison DOC For PCService Tool . . . . . . . . . . . . . . . Engage PTO, raise box, push clutch in, put in gear, and . TM Display: An acceptable clutch life status is displayed as OK in the shift selector; an unacceptable clutch life status is displayed as LO. . . . . . . . revision, for detailed information on the recommended cleaners. . . . 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. . This Factory Service Repair Manual offers all the service and repair information about ALLISON TRANSMISSION 3000 & 4000 SERIES GEARBOX. . At least until the wiring problems began a year or two later. . BASIC KNOWLEDGE REQUIRED. . . . . This, is usually caused by a dragging C1 or C3 clutch or a failed turbine speed sensor. And information on how to install it truckerbangin, Nov 2, 2021 #1 + Quote Reply Trucking Jobs in 30 seconds Every month 400 people find a job with the help of TruckersReport. . Hit the up and down arrows a 2nd time. . . . 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. ";s:7:"keyword";s:40:"allison transmission pto troubleshooting";s:5:"links";s:253:"Year Round Trailer Parks Near Hamilton, Ontario, Articles A
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