. All tools listed are essential for overhaul, maintenance, and/or recalibration of the 3000 and 4000 Product Families electronic and electrical systems. . . . . . . . . . . . . . Determine the fluid level before beginning the OLS troubleshooting. . . . . . . . . . . . . For example, Code P0960, indicates an open in the pressure control solenoid circuit, wires 111 and 174. 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. . . . . SPECIAL ELECTRONIC/ELECTRICAL TOOLS, 2-2. Output voltage from the TPS is directed to the TCM through the external harness. . . . . Use the P/N from your appropriate parts catalog or from Appendix E in this manual. Do this for both wires in the circuit being tested. . . .614 B. Solenoid Locations . . 112 A. . . . . . . . . Message over the SAE J1939 communication interface. . . . . . . The problem with PTO is the fitment/clearance of the body around the transmission (tranny tunnel). . Diagnostic and oil level (if sensor is present) information is obtained from the LED display by pressing the display mode button. . . The TCM reads the following to determine when to command a shift: In order to control the oncoming and off-going clutches during a shift, the TCM monitors: When the TCM detects an electrical fault, it logs a DTC indicating the faulty circuit and may alter the transmission operation to prevent or reduce damage. The sensor operates on. . . . . . . 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. . . . . . . . ), FOREWARD. . . . Allison, PTO internal leak "from" transmission. Check for contaminates in air cylinder. . Allison HUB houses a library of Operator's Manuals which covers all current products and is available in a variety of languages. . . . . . See Figure 1. Both the main and lube filters must be changed when the SERVICE TRANS indicates the main filter should be changed. . . . . . . . . . . The VIM for 24V systems has all 24V relays. . . . . . . . . . . . . . Condition Likely Cause Correction . . . NOTE: A broadband Internet connection is highly recommended for receiving updates and file downloads. . DIAGNOSTIC CODE MEMORY. . . . 1.Make sure all connectors are tightly connected and re-test the circuit. . . . . . . . . . . . 116 19. . Sold By: Complete Recycling Group - Heavy Truck Parts. . . . Available with GVWs greater than 19.5K. . Typical Allison 4th Generation Control Components. . Then the TCM concludes that no OLS is present. Wiring Diagram: Standard "H" Shift Option Model Years Standard.Muncie Power Products is a leading manufacturer of power take-offs (PTO), hydraulic components such as pumps, motors, cylinders, valves and reservoirs, and snow & ice removal products. Allison DOC For PCService Tool shows PS2 EXHAUSTED. . PTO mounting pads. BEGINNING THE TROUBLESHOOTING PROCESS. . . . . The indicator is lit upon each initialization of the TCM, and remains on for approximately 1 2 minutes after the first selection of a drive range, until service is performed and the indicator is reset. . . . . . . . . . . When the countdown period is complete, the software will use the highest priority throttle source having a confidence flag set and the autodetect logic will stop. . . Changes in sump fluid temperature are indicated by changes in sensor resistance, which changes the signal sent to the TCM. . SYSTEM OVERVIEW . . Locate the appropriate troubleshooting chart and follow the instructions. . 11 12. . . . . . Seek service assistance as soon as possible. . . Filter Life Valve Hydraulic Schematic. . . . 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). Houston, Tx 77040, Phone 713.466.9838 . . . . . . . B1 C. SOLENOID AND CLUTCH CHART. . . . . . . If temperatures do not decrease, reduce the engine rpm. . . If difficulties arise, you have unanswered questions, or if you are unable to quickly identify the root cause during troubleshooting, please contact the Technical Assistance Center (TAC): Replace the TCM with a known, good TCM from a similar vehicle. . . . . . AUTODETECT FEATURE. . 31 33. Codes related to the CHECK TRANS light are detailed in the diagnostic trouble code chart (refer to Section 6). . . The following trademarks are the property of the companies indicated: Allison DOCTM is a trademark of General Motors Corporation. The oil level sensor (OLS) is a float type device mounted on the control module channel plate. INPUT FUNCTIONS . . 1 o'clock position: 1.00 x engine speed. . . . . . . . . . . . All TCMs programmed and sold after that date will be loaded with the new TID calibration. 17 16. Figure 13. . . . . . . . . . . Actual harness configuration may differ from this illustration. . . Every possible problem and its solution cannot be encompassed by any manual. Most troubleshooting tests consist of determining resistance, continuity, and testing for shorts between wires and to ground. . . . . A revision is indicated by a new date on the title page and in the lower left corner of the rear cover. . . . . . . . . . . Always blow or shake any excess cleaner from, the connector before assembling it to its mating connector or hardware. . . . . . In initial versions of Allison 4th Generation Controls, wire 176 is connected to high side driver 1 (HSD1), wire 111, in the internal wiring harness. Description of the 3000 and 4000 Product Families Allison 4. . . . Resistance tests involving wiring between the TCM connector and other components adds about one Ohm of resistance to the component resistance shown. . Figure 15. Use the Allison shift selector to review the current status of any of these functions, provided the function being checked is in its specific display mode. . . . . . . . Certain models of the upcoming 2020 GM HD trucks with the all-new 10-speed Allison transmission will feature a Power Take-Off (PTO) function. Once a confidence flag is set, that source is used as the source for the throttle signal. If the code reappears, refer to Section 6, Diagnostic Trouble Code, and the appropriate code chart. . . . . 8 o'clock position: 1.00 x engine speed. . . . . . . . . . . . . If the rating is correct for the transmission, perform the following steps. . Hence, the solenoids are referred to as pressure control solenoids (PCS). Copeland International, Inc. 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. . . . Dont keep driving a vehicle with a faulty part! . . . . . . . . If a vehicle receives upgraded engine hardware or software it may become necessary to reactivate the Autoselect feature to redetect the engine current SEM status. . Whenever a transmission is overhauled, exchanged, or has undergone internal repairs, the TCM MUST. . "), 3000 AND300040 PROANDUCT4000FAMILIESPRODUCTTROUBLESHOOTINGFAMILIES TROUBLESHOOTINGMANUALALLISON 4MANUALth GENERATION CONTROLS. . . . 21 22. . . . . . . . . . . . This will also improve your vehicles overall functionality! . Chelsea PTO and Pumps For All Allison Transmission Models. . A. Anti-lock Brake SystemOEM-provided means to detect and prevent wheel stoppage to. . The 3000 and 4000 Product Families transmissions configurations can be programmed to have up to six forward ranges, neutral, and one reverse range. . . . . Which of these potential problems apply to your situation? NOTE: Information concerning specific items is contained in the appendices located in the back of this manual. . . The service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations. . Web allison md 3060 wtec 2 has. . . . . (Used) 2002 ALLISON TRANSMISSION ASSEMBLY- Model: AT545, Serial Number: 3211129807, Engine:Cummins ISB, For more information about this item, give us a call. . 16. . . . . Once a confidence flag is set for any one of the sources, a counter begins to countdown for 15 additional engine starts. . . 3.Thoroughly clean corroded or dirty terminals. . 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. . . . . The Prognostics pressure switch is activated when fluid exiting the main filter drops below a predetermined pressure. . . Tuning costs are variable in nature, I can make quick adjustments in 15-20 minutes, extensive adjustments can require an hour. . Reliable transmission operation and performance depend upon a correctly installed transmission. . . . . 3.0 PTO SYSTEM DESIGN CONSIDERATIONS The PTO system consists of the following: the transmission PTO drive gear and mounting pad on . Pushbutton and lever shift selectors for the Allison 4th Generation Series are remote mounted from the TCM and communicate to the TCM via the J1939 communications data link. . . The turbine speed sensor on the 4000 Product Family transmission is located on the outside of the main housing. . . Input power, ground, neutral start circuitry, etc., can cause problems with electronic controls or vehicle functioning and may not generate a DTC. . . . . . the Allison DOC For PCService Tool to reset retarder autodetect or to manually select the presence of the retarder after the PCS5 circuit is repaired. . . . . IT IS YOUR RESPONSIBILITY to be completely familiar with the warnings and cautions used in this manual. Manual resets may also be performed by one of the following methods: With the ignition ON and the engine OFF, shift between N R N R N D N to reset the value displayed on the shift selector to OK. Display the Filter Life Monitor information and press and hold the MODE button of the Allison shift selector for 10 seconds. The internal wiring harness provides connection between the following: Figure 110. . . . . . ELECTRONIC FLUID LEVEL READING (SHIFT SELECTOR), 6-4. . 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. New animated screen by screen help support (found in Help. . . . Determine if DTCs have set by: Using the shift selector display (see Paragraph. . . . . Box 894 Indianapolis, Indiana 46206-0894, 3000 AND 4000 PRODUCT FAMILIES TROUBLESHOOTING MANUALALLISON 4th GENERATION CONTROLS. . The TransID feature enables the TCM to recognize various transmission hardware configurations and select an appropriate software calibration. . . . . . . . . . Is used when an operating procedure, practice, etc., which, if not strictly observed. . . . . and ask about the replacement process. 36 38. . . . Be sure to reset the Adaptive Shift parameters and Autodetect information when it is installed in the original vehicle. . . 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