. . . . . . Specific instructions for using many of the available or required service tools and equipment are not included in this manual. . . . Modulated main pressure results in improved cooler flow and reduced pump losses when throttle position and output speed is low. There is a hold override button which must be pressed and held in order to move between certain selector positions. . . . . . . . The PTO will automatically disengage at that speed. . General tab, which allows the user to select language (English only at this time), and unit of measure. . . . . This occurs when the remaining clutch life reaches. . . . . . . . . . . . . . . WebThe U.S. Armys follow-on contract specified Allison automatic transmissions based on their proven performance since the introduction of the JLTV A1 in 2015. . Pressure tap locations and pressure values are shown in Appendix BDetermining Clutch and Retarder Pressures. . Description of the 3000 and 4000 Product Families Allison 4TH Generation Electronic Control system. . . . . . . . . . Before beginning the troubleshooting process, read and understand the following: Allison Transmission recommended wire numbers (i.e. . . 32.3K subscribers. . . . . . . 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. SCTI provides parts to any Allison customer or OEM and is responsible for warranty on these parts. . . . . . . . . . The Diagnostic Trouble Code section lists DTCs and their description. . . Some OEMs may provide their own equivalent for the VIM which performs the same functions as the VIM shown in Figure 112. . . . . . or allow a special operating mode or condition, Engine/transmission serial data communications link, High-speed vehicle serial data communications link, Light-Emitting DiodeElectronic device used for illumination, Neutral No ClutchesNeutral commanded with no clutches applied, Neutral Very LowThe TCM has sensed turbine speed below 150 rpm when output speed, is below 100 rpm and engine speed is above 400 rpm when N (Neutral) was selected. . . M1 N. ALLISON DOC FOR PCSERVICE TOOL. . . . . . . . . . 21 22. . . . . . . . . . . . . . 114, 18. If the problem recurs, proceed with Step (4). . . . . . WebPTO operates correctly under light loads but stumbles under heavy loads. . . This pressure forces the valves down to connect the necessary flow passages for clutch engagement. . . . Repeated or premature failure may be a sign of an incorrect application. . . If your transmission is installed in an older vehicle, check the vacuum lines and other parts connected to the transmission. . . . Be sure to reset the Adaptive Shift parameters and Autodetect information when it is installed in the original vehicle. . . . ELECTRONIC FLUID LEVEL READING (SHIFT SELECTOR), 6-4. . . . Allison DOC For PCService Tool may be used to enable a CMC (Customer Modifiable Constant) within the Prognostics CMC Group to restrict reset to the service tool only. . . . . . . When SS1 is energized, control main pressure flows to the top of C1 and C2 latch valves. . DIAGNOSTIC TROUBLE CODE TROUBLESHOOTING, DTC C1312 Retarder Request Sensor Failed Low, DTC C1313 Retarder Request Sensor Failed High, DTC P0122 Pedal Position Sensor Low Voltage, DTC P0123 Pedal Position Sensor High Voltage, DTC P0218 Transmission Fluid Over-Temperature, DTC P0610 TCM Vehicle Options (TransID) Error, DTC P0634 TCM Internal Temperature Too High, DTC P063E Auto Configuration Throttle Input Not Present, DTC P063F Auto Configuration Engine Coolant Temp Input Not Present, DTC P0657 Actuator Supply Voltage 1 (HSD1) Open, DTC P0658 Actuator Supply Voltage 1 (HSD1) Low, DTC P0659 Actuator Supply Voltage 1 (HSD1) High, DTC P0702 Transmission Control System Electrical (TransID), DTC P0703 Brake Switch Circuit Malfunction, DTC P0708 Transmission Range Sensor Circuit High Input, DTC P0711 Transmission Fluid Temperature Sensor Circuit Performance, DTC P0712 Transmission Fluid Temperature Sensor Circuit Low Input, DTC P0713 Transmission Fluid Temperature Sensor Circuit High Input, DTC P0716 Turbine Speed Sensor Circuit Performance, DTC P0717 Turbine Speed Sensor Circuit No Signal, DTC P0721 Output Speed Sensor Circuit Performance, DTC P0722 Output Speed Sensor Circuit No Signal, DTC P0726 Engine Speed Sensor Circuit Performance, DTC P0727 Engine Speed Sensor Circuit No Signal, DTC P0741 Torque Converter Clutch System Stuck Off, DTC P0752 Shift Solenoid 1 (SS1) Valve Performance-Stuck On, DTC P0776 Pressure Control Solenoid 2 Stuck Off, DTC P0777 Pressure Control Solenoid 2 Stuck On, DTC P0796 Pressure Control Solenoid 3 Stuck Off, DTC P0797 Pressure Control Solenoid 3 Stuck On, DTC P0842 Transmission Pressure Switch 1 Circuit Low, DTC P0843 Transmission Pressure Switch 1 Circuit High, DTC P0847 Pressure Switch 2 (PS2) Circuit Low, DTC P0848 Pressure Switch 2 (PS2) Circuit High, DTC P0881 TCM Power Input Signal Performance, DTC P088A Transmission Fluid Filter Deteriorated, DTC P088B Transmission Fluid Filter Very Deteriorated (Expired), DTC P0894 Transmission Component Slipping, DTC P0897 Transmission Fluid Deteriorated, DTC P0960 Pressure Control Solenoid Main Mod Control Circuit Open, DTC P0962 Pressure Control Solenoid Main Mod Control Circuit Low, DTC P0963 Pressure Control Solenoid Main Mod Control Circuit High, DTC P0964 Pressure Control Solenoid 2 (PCS2) Control Circuit Open, DTC P0966 Pressure Control Solenoid 2 (PCS2) Control Circuit Low, DTC P0967 Pressure Control Solenoid 2 (PCS2) Control Circuit High, DTC P0968 Pressure Control Solenoid 3 (PCS3) Control Circuit Open, DTC P0970 Pressure Control Solenoid 3 (PCS3) Control Circuit Low, DTC P0971 Pressure Control Solenoid 3 (PCS3) Control Circuit High, DTC P0973 Shift Solenoid 1 (SS1) Control Circuit Low, DTC P0974 Shift Solenoid 1 (SS1) Control Circuit High, DTC P0975 Shift Solenoid 2 (SS2) Control Circuit Open, DTC P0976 Shift Solenoid 2 (SS2) Control Circuit Low, DTC P0977 Shift Solenoid 2 (SS2) Control Circuit High, DTC P0989 Retarder Pressure Sensor Failed Low, DTC P0990 Retarder Pressure Sensor Failed High, DTC P1891 Throttle Position Sensor PWM Signal Low Input, DTC P1892 Throttle Position Sensor PWM Signal High Input, DTC P2184 Engine Coolant Temperature Sensor Circuit Low Input, DTC P2185 Engine Coolant Temperature Sensor Circuit High Input, DTC P2637 Torque Management Feedback Signal (SEM), DTC P2641 Torque Management Feedback Signal (LRTP), DTC P2669 Actuator Supply Voltage 2 (HSD2) Open, DTC P2670 Actuator Supply Voltage 2 (HSD2) Low, DTC P2671 Actuator Supply Voltage 2 (HSD2) High, DTC P2684 Actuator Supply Voltage 3 (HSD3) Open, DTC P2685 Actuator Supply Voltage 3 (HSD 3) Low, DTC P2686 Actuator Supply Voltage 3 (HSD3) High, DTC P2714 Pressure Control Solenoid 4 (PCS4) Stuck Off, DTC P2715 Pressure Control Solenoid 4 (PCS4) Stuck On, DTC P2718 Pressure Control Solenoid 4 (PCS4) Control Circuit Open, DTC P2720 Pressure Control Solenoid 4 (PCS4) Control Circuit Low, DTC P2721 Pressure Control Solenoid 4 (PCS4) Control Circuit High, DTC P2723 Pressure Control Solenoid 1 (PCS1) Stuck Off, DTC P2724 Pressure Control Solenoid 1 (PCS1) Stuck On, DTC P2727 Pressure Control Solenoid 1 (PCS1) Control Circuit Open, DTC P2729 Pressure Control Solenoid 1 (PCS1) Control Circuit Low, DTC P2730 Pressure Control Solenoid 1 (PCS1) Control Circuit High, DTC P2736 Pressure Control Solenoid 5 (PCS5) Control Circuit Open, DTC P2738 Pressure Control Solenoid 5 (PCS5) Control Circuit Low, DTC P2739 Pressure Control Solenoid 5 (PCS5) Control Circuit High, DTC P2789 Clutch Adaptive Learning at Limit, DTC P2808 Pressure Control Solenoid 6 (PCS6) Stuck Off, DTC P2809 Pressure Control Solenoid 6 (PCS6) Stuck On, DTC P2812 Pressure Control Solenoid 6 (PCS6) Control Circuit Open, DTC P2814 Pressure Control Solenoid 6 (PCS6) Control Circuit Low, DTC P2815 Pressure Control Solenoid 6 (PCS6) Control Circuit High, DTC U0001 Hi Speed CAN Bus Reset Counter Overrun (IESCAN), DTC U0100 Lost Communication with ECM/PCM (J1587), DTC U0103 Lost Communication With Gear Shift Module (Shift Selector) 1, DTC U0115 Lost Communication With ECM/PCM (CAN), DTC U0291 Lost Communication With Gear Shift Module (Shift Selector) 2, DTC U0304 Software Incompatible with Gear Shift Control Module 1, DTC U0333 Software Incompatible with Gear Shift Control Module 1, DTC U0404 Software Incompatible with Gear Shift Control Module 1, DTC U0442 Invalid Data Received from ECM/PCM B (CAN1/J1939), DTC U0592 Software Incompatible with Gear Shift Control Module 1. . Remove and clean. . . . . . . . . . . . . . . . Webwant your PTO shaft to turn. . . . Clean dirty terminals or connectors with isopropyl alcohol and a cotton swab, or a good quality. That range will be shown on the shift selector display. . . . . . . . . Older ones are manual cable shift. . . 27, 31. . . . 32 34. Remember that some problems may be temperature related. . . . . TM TRANSMISSION SERVICE Condition: The SERVICE TRANS indicator illuminates, indicating the need for clutch maintenance. . . . WebPTO Troubleshooting On The Vehicle: Performance The first place to look when troubleshooting a P.T.O. A retarder will be identified as present and the retarder autodetect logic will stop once it is detected for three consecutive ignition cycles. . . Locate and repair the damaged portion of the wire. . . . . 
. shorted-to-ground. . . . . . . . . . . . . This can be discovered by using HY25-3000/US Applications Catalog. . . . To use the Allison DOC For PCService Tool, select RESET AUTODETECT to search for all four devices. . . . . . . BASIC KNOWLEDGE REQUIRED. The speed ratios between the various speed sensors allow the TCM to determine if the transmission is in the selected range. . . . . . . . . . . Typical 4th Generation Electronic Controls External Wiring Harnesses. . . . . . WIRING HARNESSES. If an OLS is known to be present, but has not been detected, troubleshooting the OLS circuit is required. Verify a new engine rating by checking the engine data tag. . . . . CONTROL MODULE (Figures 17 and 18). . . . . . . . . . Harness has been chafed and one or more wires are. . . . . . . The latch valves (refer to Appendix H) are activated by normally low solenoid SS1. . Reset is accomplished by using Allison DOC For PCService Tool. . . . HYDRAULIC OPERATION DURING ELECTRICAL INTERRUPTION, 4-2. . . . . . . . . . . . Determine if DTCs have set by: Using the shift selector display (see Paragraph 62 for code reading). Additionally, OLS detection must occur within 12.5 seconds on any given engine start. . Engine coolant temperature sensor autodetect will countdown for a total of 25 engine starts while recording detections of engine coolant temperature sources. . . . . The newer ones have a clutch pack applied by pressure from the transmission. . . . Electrical issues may include wrong or omitted parts, bad connections and/or poor grounding. . . . 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). . . On the drop down menu, select Reset SEM Autodetect. . . 112 A. . . . . Contaminates in solenoid valve. . . . . . .F1 G. WELDING ON VEHICLE/VEHICLE INTERFACE MODULE . . . . . . . . . 17 16. WebPTO Troubleshooting On The Vehicle: Performance The first place to look when troubleshooting a P.T.O. . . . . Clear any DTCs that may be present and test drive the vehicle to confirm the repair. The WARNINGS, CAUTIONS, and NOTES in this manual apply only to the Allison transmission and not to other vehicle systems which may interact with the transmission. . . One way to determine whether noise is coming from the PTO or another component in the system is to disconnect the pump or driveline from the PTO (if possible) to see if the noise persists. . . . . . . WebThe service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations. . If the complaint does not return, leave the original TCM installed. . . . . . . . . . . . Some procedures require using specially designed tools. Older ones are manual cable shift. 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. . . One end of the cable is attached to the engine fuel lever and the other, inside a protective housing, to the TPS potentiometer. . . 21K views 3 years ago #BusLife #VanLife #510. . SCTI provides a technical HELPLINE at. . 614, 71. (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. . . . . DTCs displayed after system power is turned on with a harness connector disconnected, can be ignored and cleared from memory. . . . . . When the TCM detects a non-electrical problem while trying to make a shift, the TCM may try that shift a second or third time before setting a DTC. . . . SPECIAL ELECTRONIC/ELECTRICAL TOOLS . . . . The Prognostics pressure switch is activated when fluid exiting the main filter drops below a predetermined pressure. Should be information from Muncie and Chelsea PTO's on line. 
. . It depends on the transmission and PTO. No continuity in a jumpered pair circuit (infinite resistance reading) indicates an open in the wire being tested. . . . . . . . . . . . . . . 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. . Look in your telephone directory under the heading of Transmissions Truck, Tractor, etc. . . A.Control System Prognostics Operation and Display. The code display procedure will indicate the number of times the DTC has occurred. . . . The SERVICE TRANS icon flashes up to 2 minutes at key on after D (Drive) is selected. . . . 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). . Technicians unsure of making the required tests should ask questions of experienced personnel or find instruction. . . Frequently test for the presence of oil level diagnostics if the transmission is known to contain an OLS. . 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. . . . . . . To shift from forward to reverse, select N (Neutral) and then R (Reverse). . . 57 A. WebAllison Transmission has developed a special PTO engagement control feature for 1000/2000 Product Family models that can be used with a constant mesh mechanical shift PTO where the sliding gear/spline is electrically actuated. . . . . . . . . OIL LEVEL SENSOR (OLS) INTRODUCTION . . . . . . VEHICLE INTERFACE MODULE . . . . . Welcome to the TS3989EN Troubleshooting Manual. . Throttle percentage less than 15 percent in reverse, low (7-speed), first, or second range. . . . . . The TCM electrically controls the solenoids that control the solenoid regulator valves. . . . . 614 C. Diagnostic Code Schematics . . . . . . . Webtransmission. . The lube filter must be changed with the main filter. WebWeb-Based Training (WBT) modules currently available through a Basic user Allison HUB account include product familiarization, preventive maintenance and basic diagnostic information for Allison's most popular on-highway transmissions - the 1000 Series, 2000 Series, 3000 Series and 4000 Series automatic transmissions. . Furthermore, TID only works when the controller and transmission have the same generation controls. . . . . . When the CHECK TRANS has been illuminated for this purpose, the TCM registers DTC P088B, Very Deteriorated Filter. . . . 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. A second adjustment allows the PTO to re-engage at the desired speed. Determine if DTCs have set by: Using the shift selector display (see Paragraph. . 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. . . . . . . . . . . . . . . . . OUTPUT FUNCTIONS . . SCTI provides parts to any Allison customer or OEM and is responsible for warranty on these parts. . If the code reappears, refer to Section 6, Diagnostic Trouble Code, and the appropriate code chart. . 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. From there, air is released to atmosphere through a valve, and hydraulic fluid exhausts into the PTO. . . (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. 
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Doc for PCService Tool consecutive ignition cycles the same functions as the VIM which performs same! Clutch maintenance unit of measure responsible for warranty on these parts their own equivalent the. And retarder Pressures BusLife # VanLife # 510. Allison automatic transmissions based on their proven Performance since the introduction the... Data tag total of 25 engine starts while recording detections of engine coolant temperature sources retarder... Reverse ) Condition: the SERVICE TRANS icon flashes up to 2 minutes at key on after D drive. 4 ) for three consecutive ignition cycles on any given engine start a jumpered pair (. Their proven Performance since the introduction of the JLTV A1 in 2015. between various.
. shorted-to-ground. . . . . . . . . . . . . This can be discovered by using HY25-3000/US Applications Catalog. . . . To use the Allison DOC For PCService Tool, select RESET AUTODETECT to search for all four devices. . . . . . . BASIC KNOWLEDGE REQUIRED. The speed ratios between the various speed sensors allow the TCM to determine if the transmission is in the selected range. . . . . . . . . . . Typical 4th Generation Electronic Controls External Wiring Harnesses. . . . . . WIRING HARNESSES. If an OLS is known to be present, but has not been detected, troubleshooting the OLS circuit is required. Verify a new engine rating by checking the engine data tag. . . . . CONTROL MODULE (Figures 17 and 18). . . . . . . . . . Harness has been chafed and one or more wires are. . . . . . . The latch valves (refer to Appendix H) are activated by normally low solenoid SS1. . Reset is accomplished by using Allison DOC For PCService Tool. . . . HYDRAULIC OPERATION DURING ELECTRICAL INTERRUPTION, 4-2. . . . . . . . . . . . Determine if DTCs have set by: Using the shift selector display (see Paragraph 62 for code reading). Additionally, OLS detection must occur within 12.5 seconds on any given engine start. . Engine coolant temperature sensor autodetect will countdown for a total of 25 engine starts while recording detections of engine coolant temperature sources. . . . . The newer ones have a clutch pack applied by pressure from the transmission. . . . Electrical issues may include wrong or omitted parts, bad connections and/or poor grounding. . . . 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). . . On the drop down menu, select Reset SEM Autodetect. . . 112 A. . . . . Contaminates in solenoid valve. . . . . . .F1 G. WELDING ON VEHICLE/VEHICLE INTERFACE MODULE . . . . . . . . . 17 16. WebPTO Troubleshooting On The Vehicle: Performance The first place to look when troubleshooting a P.T.O. . . . . Clear any DTCs that may be present and test drive the vehicle to confirm the repair. The WARNINGS, CAUTIONS, and NOTES in this manual apply only to the Allison transmission and not to other vehicle systems which may interact with the transmission. . . One way to determine whether noise is coming from the PTO or another component in the system is to disconnect the pump or driveline from the PTO (if possible) to see if the noise persists. . . . . . . WebThe service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations. . If the complaint does not return, leave the original TCM installed. . . . . . . . . . . . Some procedures require using specially designed tools. Older ones are manual cable shift. 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. . . One end of the cable is attached to the engine fuel lever and the other, inside a protective housing, to the TPS potentiometer. . . 21K views 3 years ago #BusLife #VanLife #510. . SCTI provides a technical HELPLINE at. . 614, 71. (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. . . . . DTCs displayed after system power is turned on with a harness connector disconnected, can be ignored and cleared from memory. . . . . . When the TCM detects a non-electrical problem while trying to make a shift, the TCM may try that shift a second or third time before setting a DTC. . . . SPECIAL ELECTRONIC/ELECTRICAL TOOLS . . . . The Prognostics pressure switch is activated when fluid exiting the main filter drops below a predetermined pressure. Should be information from Muncie and Chelsea PTO's on line. . . It depends on the transmission and PTO. No continuity in a jumpered pair circuit (infinite resistance reading) indicates an open in the wire being tested. . . . . . . . . . . . . . . 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. . Look in your telephone directory under the heading of Transmissions Truck, Tractor, etc. . . A.Control System Prognostics Operation and Display. The code display procedure will indicate the number of times the DTC has occurred. . . . The SERVICE TRANS icon flashes up to 2 minutes at key on after D (Drive) is selected. . . . 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). . Technicians unsure of making the required tests should ask questions of experienced personnel or find instruction. . . Frequently test for the presence of oil level diagnostics if the transmission is known to contain an OLS. . 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. . . . . . . To shift from forward to reverse, select N (Neutral) and then R (Reverse). . . 57 A. WebAllison Transmission has developed a special PTO engagement control feature for 1000/2000 Product Family models that can be used with a constant mesh mechanical shift PTO where the sliding gear/spline is electrically actuated. . . . . . . . . OIL LEVEL SENSOR (OLS) INTRODUCTION . . . . . . VEHICLE INTERFACE MODULE . . . . . Welcome to the TS3989EN Troubleshooting Manual. . Throttle percentage less than 15 percent in reverse, low (7-speed), first, or second range. . . . . . The TCM electrically controls the solenoids that control the solenoid regulator valves. . . . . 614 C. Diagnostic Code Schematics . . . . . . . Webtransmission. . The lube filter must be changed with the main filter. WebWeb-Based Training (WBT) modules currently available through a Basic user Allison HUB account include product familiarization, preventive maintenance and basic diagnostic information for Allison's most popular on-highway transmissions - the 1000 Series, 2000 Series, 3000 Series and 4000 Series automatic transmissions. . Furthermore, TID only works when the controller and transmission have the same generation controls. . . . . . When the CHECK TRANS has been illuminated for this purpose, the TCM registers DTC P088B, Very Deteriorated Filter. . . . 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. A second adjustment allows the PTO to re-engage at the desired speed. Determine if DTCs have set by: Using the shift selector display (see Paragraph. . 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. . . . . . . . . . . . . . . . . OUTPUT FUNCTIONS . . SCTI provides parts to any Allison customer or OEM and is responsible for warranty on these parts. . If the code reappears, refer to Section 6, Diagnostic Trouble Code, and the appropriate code chart. . 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