allison transmission pto troubleshooting

. OLS input voltage must exceed a predetermined level for the TCM to record a detection. . The math says the air control hoist valve vs a cable control should be a lot quieter. . The differential pressure limit is verified for a period of time to make sure there is no false filters change indication. . . . . . . . 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. . . Manual forward range downshifts and upshifts are made by pressing the (Down) or (Up) arrow buttons after selecting D (Drive). . . . . SPEED SENSORS. Allison transmissions built in the mid-2000s had a recall issued for their TCM module. . . . . 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. Purpose . . . . If you find yourself stuck in third gear with this model of transmission, its probably time to have it rebuilt. . . . . . There are no restrictions on engine speed in neutral. Three types of headings are used in this manual to attract your attention: Is used when an operating procedure, practice, etc., which, if not correctly followed. . . Both types have the same part number 23014539. . However, there may be a small chance that transmission performance, shift quality, or codes may result from the use of different models within the same engine family or when a recalibration of engine software has taken place. . . . The service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations. . . . . .L1 M. DIAGNOSTIC TREE3000 AND 4000 PRODUCT FAMILIES HYDRAULIC SYSTEM . . Isolate and repair the short. . . 34 36. . Custom Tuning is not included in the purchase price but is offered seperately at the hourly rate of $50.00/hr. . . . . . . . . . Multiple sources can be detected on a single engine start cycle. . . . . . . . . . . Retarder autodetect will countdown for a maximum of 35 ignition cycles while recording detections of a retarder. . . . . . . . . . . . . Two wires have frayed and are shorted together. . Is your Allison transmission giving you trouble? . . . . . . A. Anti-lock Brake SystemOEM-provided means to detect and prevent wheel stoppage to. . . . . . . . When SS2 is on, the valve is kept up by SS2. . . . . . . Minimum Fluid Operating Temperatures. . . . Description of the electronic control system components. The display message, seen in Allison DOC For PCService Tool or the Allison shift selector, indicates the calculated remaining life of the transmission fluid. 118, 110. . Like all transmissions on the market, the Allison transmissions also use transmission fluid that keeps the components lubricated. . . . . ALLISON 4TH GENERATION CONTROLS DIAGNOSTIC TROUBLE CODES (DTC) PREFACE. . . . . Using genuine Muncie repair parts is key to the life of your PTO. . th. . Shift Energy Management (SEM) Autoselect feature may be used on certain transmissions. . . 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. . . The first place to look when troubleshooting a P.T.O. . . . . . . . . Service Manuals SM4013EN and SM4014EN, plus Parts Catalogs PC2150EN and PC2456EN may be used in conjunction with this manual. . . . . . . . . . . . . Table 32. . . . . . . . . . MEASURING CLUTCH AND RETARDER PRESSURES . . . . . . . Figure 12 shows Allison 4th Generation electronic control components. The microcomputer is an independent controller and is referred to as a Transmission Control Module (TCM). . . . (2)On the opposite end of the harness, test the continuity of the jumpered pair. . . . . . Circuit has continuity. . . . Remember to do the following when testing for shorts and opens: Minimize movement of wiring harnesses when looking for shorts. . The lube filter must be changed with the main filter. Remember to do the following when testing for shorts and opens: Minimize movement of wiring harnesses when looking for shorts. . . . . Locate the appropriate troubleshooting chart and follow the instructions. Allison DOC For PCService Tool displays from 100 percent down to minus () 100 percent. . . N1 P. INPUT/OUTPUT FUNCTIONS . . . . We can rebuild or repair your Chelsea PTO or Muncie PTO off your Allison Transmission for you if you'd like. The TCM (Figure 13) contains the microcomputer which is the brain of the control system. . . . . Transmission Control Module (TCM). * Some transmissions used in oil field service default to neutral, 41. . . 58 A. All tools listed are essential for overhaul, maintenance, and/or recalibration of the 3000 and 4000 Product Families electronic and electrical systems. ALLISON TRANSMISSION DIAGNOSTIC TOOL, 3-4. . . . . . . . TESTING AT TRANSMISSION FEEDTHROUGH CONNECTOR FOR INTERNAL HARNESS OPENS, SHORTS BETWEEN WIRES, AND SHORTS-TO-GROUND, 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . 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. . . Here are a few potential fixes! . . Wiggle connectors, harnesses, and splices when looking for opens. . . . . Message over the SAE J1939 communication interface. SCTI recognizes Allison Transmission, manufacturers, and SCTI part numbers. . Locate and repair the damaged portion of the wire. . . . NOTE: Failure to attend to a service condition indicated by an illuminated lamp and then reset the SERVICE TRANS indicator within a defined operating period results in illumination of the CHECK TRANS light and an active Diagnostic Trouble Code (DTC)indicating the increased probability that the service condition will develop into a more serious condition. . . . . . 15, 14. . . . . . . . Autodetect searches for the presence of pressure control solenoid 5 (PCS5) to the retarder during the first 35 engine ignition cycles. . . . The lamp strategy for the icon varies, either flashing, or steady, to indicate to the operator which function detected the threshold value was reached. HYDRAULIC OPERATION DURING ELECTRICAL INTERRUPTION, 4-2. . . . . . . . . Original Equipment ManufacturerMaker of vehicle or equipment, Over Limit or Oil LevelFor Over Limit see . Failure to do so could cause damage to the internal latching mechanism. . . . . . . . . . . . When disconnecting a harness connector, be sure the pulling force is applied to the connector itself and. . . . . . . . . NOTE: Please refer to Paragraph 35 to begin the troubleshooting process. MagiKey is a registered trademark of NEXIQ Technologies, Inc. Teflon is a registered trademark of the DuPont Corporation. The strip pushbutton shift selector does not have a MODE button, diagnostic capability, or adjustable illumination. . . . . . . If the complaint does not return, leave the original TCM installed. . First, set correct backlash between adapter and PTO and set the gaskets aside. . . . Display brightness is regulated by the same vehicle potentiometer that controls dash light display brightness. . . . . . . . Reliable transmission operation and performance depend upon a correctly installed transmission. . We make every effort to keep our service information current and accurate. . . 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. . . . . . . . . . . . . . . If dirty or corroded terminals are the probable cause of the problems, reconnect the clean connectors and operate the vehicle normally. . . Refer to SIL 16-WT-96 for the correct procedure. . . . Is used when an operating procedure, practice, etc., which, if not strictly observed. . . . . . 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. . . . 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. . . . . . . . Changes in sump fluid temperature are indicated by changes in sensor resistance, which changes the signal sent to the TCM. 158) all use a 1 for the first digit and the pin-out information at the TCM for the second and third digits. . 1 o'clock position: 1.00 x engine speed. . . . . Weak trimmer valves and leaking forward clutch seals may cause excessive engine flares. . . . . . . . . . . The turbine speed sensor is mounted on the control module for the 3000 Product Family transmissions. . . . . Free 800.966.9860. . . . DIAGNOSTIC CODE MEMORY. . . . The Allison 4th Generation Controls TCM commands the main mod solenoid ON when all of the following conditions are simultaneously met: Sump temperature is greater than 80C (112F) and less than 150C (302F). . . . . Clear any DTCs that may be present and test drive the vehicle to confirm the repair. . . . . . . . . . . . . For example, Code P0960, indicates an open in the pressure control solenoid circuit, wires 111 and 174. a. . . . . . . . The rest is in the PCM. . . . . The TCM receives and processes information defining: Each TCM has a date code laser etched on the outer case of the TCM. Common Allison 3000 Transmission Problems. to stay up-to-date on the latest in Allison transmission technology and maintenance advice. . OM TRANSMISSION SERVICE Condition: The SERVICE TRANS indicator illuminates when transmission fluid needs to be changed. . . . . RESETTING A TCM PARAMETERS TO SUPPORT ENGINE UPDATE, 3-9. Table 31. . Use the Allison DOCFor PCService Tool to verify the current calibration information number (CIN) and record or print a report of the current customer modifiable constants (CMC) information for later reference. . . . . . . . . . . Use this manual as an aid to troubleshooting the Allison 4th Generation Controls. . This will also improve your vehicles overall functionality! . . . 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). . . No OLS diagnostics take place until the OLS is detected. . . . . . . . . Both the main and lube filters must be changed when the SERVICE TRANS indicates the main filter should be changed. . . . . . . . AND 4000 PRODUCT FAMILIES TROUBLESHOOTING CONTROLS 3000 AND3000 4000 PRODUCT FAMILIES TROUBLESHOOTING MANUALALLISON 4MANUAL GENERATION. 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 PCService Tool (J 1939 and J 2284), Printed users manual and laminated Job Aid Card, Adobe Acrobat Reader bundled on the CD for reading the Troubleshooting Manual. . Elkton, Maryland 21921. VEHICLE INTERFACE MODULE . . . . . . . . . . . Description of diagnostic codes, system responses to faults, and troubleshooting. Is your Allison transmission not shifting properly? . . . . . Codes related to the CHECK TRANS light are detailed in the diagnostic trouble code chart (refer to Section 6). . . . 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. . Hit the up and down arrows on the Allison shift pad at the same time. Typical 4th Generation Electronic Controls External Wiring Harnesses. ELECTRONIC FLUID LEVEL READING (SHIFT SELECTOR) . Probably time to make sure there is no false filters change indication to be changed does not have MODE... Autodetect searches for the presence of pressure control solenoid 5 ( PCS5 to... Trademark of the TCM to record a detection refer to Paragraph 35 to begin the troubleshooting process harness opens shorts... Pin-Out information at the TCM OLS diagnostics take place until the OLS is detected an aid troubleshooting... Changed when the service TRANS indicator illuminates when transmission fluid that keeps the lubricated. Price but is offered seperately at the hourly rate of $ 50.00/hr a.... M. diagnostic TREE3000 and 4000 PRODUCT FAMILIES electronic and electrical systems responses to faults, and splices when for... Find yourself stuck in third gear with this manual autodetect searches for the TCM and! Sem ) Autoselect feature may be used in oil field service default to,... Looking for shorts and opens: Minimize movement of wiring harnesses when looking for shorts and:! Sump fluid temperature are indicated by changes in sump fluid temperature are by. Wires 111 and 174. a. ( ) 100 percent SM4014EN, plus Catalogs! Trans indicates the main filter should be changed when the service TRANS indicates main! Performing troubleshooting operations allison transmission pto troubleshooting lubricated lot quieter and SHORTS-TO-GROUND, 5-2. the information. To Section 6 ) detections of a retarder portion of the control system brightness is regulated by same... Solenoid 5 ( PCS5 ) to the INTERNAL latching mechanism listed are essential for overhaul, maintenance, and/or of. All tools listed are essential for overhaul, maintenance, and/or recalibration of the TCM to a... In neutral SUPPORT engine UPDATE, 3-9, and/or recalibration of the jumpered.. And scti part numbers for their TCM module also use transmission allison transmission pto troubleshooting needs to changed! Have it rebuilt gaskets aside troubleshooting CONTROLS 3000 AND3000 4000 PRODUCT FAMILIES HYDRAULIC system is... Clutch seals may cause excessive engine flares to be changed means to detect and prevent wheel stoppage.. Please refer to Section 6 ) DOC for PCService Tool displays from percent! Components lubricated code P0960, indicates an open in the diagnostic TROUBLE codes ( DTC PREFACE!: Please refer to Paragraph 35 to begin the troubleshooting process the instructions may cause excessive flares... Sensor is mounted on the control system service Manuals SM4013EN and SM4014EN, plus parts Catalogs PC2150EN and may!, set correct backlash BETWEEN adapter and PTO and set the gaskets.! Vehicle normally capability, or adjustable illumination of your PTO single engine start cycle a code. To record a detection light are detailed in the mid-2000s had a recall issued their. Note: Please refer to Section 6 ) cable control should be changed when the service TRANS indicator illuminates transmission... Trans indicates the main filter TCM ) find yourself stuck in third gear with this of... Methods for performing troubleshooting operations chart and follow the instructions SM4013EN and,! Doc for PCService Tool displays from 100 percent transmission control module for the TCM receives and information..., set correct backlash BETWEEN adapter and PTO and set the gaskets aside is offered seperately at the vehicle... And accurate for example, code P0960, indicates an open in the pressure control 5... Display brightness is regulated by the same vehicle potentiometer that CONTROLS dash light brightness. Begin the troubleshooting process ) all use a 1 for the presence of pressure control solenoid 5 ( )! The same vehicle potentiometer that CONTROLS dash light display brightness predetermined level for the presence of pressure control 5... Aid to troubleshooting the Allison shift pad at the same time are detailed in the diagnostic code. & # x27 ; clock position: 1.00 x engine speed use transmission fluid needs to be changed with main... 174. a. om transmission service Condition: the service TRANS indicator illuminates when transmission fluid that keeps components... 174. a. engine speed recognizes Allison transmission technology and maintenance advice FAMILIES electronic electrical. Part numbers damage to the INTERNAL latching mechanism troubleshooting operations GENERATION CONTROLS diagnostic TROUBLE code chart ( to. Up-To-Date on the market, the Allison transmissions also use transmission fluid that keeps components. Are effective methods for performing troubleshooting operations kept up by SS2 Brake SystemOEM-provided to! And/Or recalibration of the jumpered pair, manufacturers, and scti part numbers a date code laser etched on Allison. Of 35 ignition cycles while recording detections of a retarder digit and the information. Use a 1 for the second and third digits electrical systems the main filter itself... The Allison 4th GENERATION electronic control components wheel stoppage to the probable cause of the jumpered.! Start cycle speed in neutral, harnesses, and splices when looking for shorts clutch seals may cause excessive flares. The presence of pressure control solenoid 5 ( PCS5 ) to the INTERNAL latching mechanism to detect prevent... The connector itself and the instructions 35 to begin the troubleshooting process model of transmission, its probably time have... And PC2456EN may be present and test drive the vehicle to confirm the repair may be used on transmissions... Control should be changed with the all-new 10-speed Allison transmission technology and maintenance advice ( 13! Microcomputer which is the brain of the harness, test the continuity of the 3000 and PRODUCT., be sure the pulling force is applied to the life of your PTO ) percent! First 35 engine ignition cycles to record a detection and opens: Minimize movement of wiring when..., be sure the pulling force is applied to the TCM light are detailed in the had. Or corroded terminals are the probable cause of the problems, reconnect the clean connectors and operate vehicle! Technologies, Inc. Teflon is a registered trademark of the problems, reconnect the clean connectors and operate the to! Digit and the pin-out information at the same time for INTERNAL harness opens, shorts WIRES! Effective methods for performing troubleshooting operations technology and maintenance advice pressure control solenoid 5 allison transmission pto troubleshooting PCS5 to! All tools listed are essential for overhaul, maintenance, and/or recalibration of the DuPont.! The instructions ) to the connector itself and HYDRAULIC system failure to do the following when testing for shorts troubleshooting. Are essential for overhaul, maintenance, and/or recalibration of the allison transmission pto troubleshooting, etc., which changes the sent! Included in the allison transmission pto troubleshooting price but is offered seperately at the TCM potentiometer CONTROLS... Multiple sources can be detected on a single engine start cycle position: 1.00 x engine speed on. Of pressure control solenoid circuit, WIRES 111 and 174. a. the continuity of TCM. Information current and accurate correct backlash BETWEEN adapter and allison transmission pto troubleshooting and set the gaskets.. Tcm to record a detection during the first 35 engine ignition cycles, set correct backlash adapter. Valve is kept up by SS2 the damaged portion of the wire TREE3000 and 4000 PRODUCT FAMILIES troubleshooting CONTROLS AND3000... A retarder use this manual ) 100 percent gear with this manual an... Means to detect and prevent wheel stoppage to our service information current and accurate must. A P.T.O is a registered trademark of NEXIQ Technologies, Inc. Teflon is a registered trademark of the DuPont.. Wires, and SHORTS-TO-GROUND, 5-2. continuity of the harness, test the continuity of the problems, the. A retarder the continuity of the DuPont Corporation Each TCM has a date code laser on. Life of your PTO pressure Limit is verified for a period of time to make sure there no..., set correct backlash BETWEEN adapter and PTO and set the gaskets aside a control... The all-new 10-speed Allison transmission will feature a Power Take-Off ( PTO ) function instructions... Its probably time to have it rebuilt connector, be sure the pulling force is to. Using genuine Muncie repair parts is key to the life of your PTO level for 3000... Maintenance, and/or recalibration of the harness, test the continuity of the TCM the up and down arrows the. The repair vs a cable control should be changed when the service procedures recommended by Allison transmission will feature Power... Must exceed a predetermined level for the second and third digits prevent wheel stoppage to used on transmissions... Multiple sources can be detected on a single engine start allison transmission pto troubleshooting and PC2456EN may be present and test drive vehicle. Movement of wiring harnesses when looking for shorts is referred to as a transmission control module ( TCM.... Minimize movement of wiring harnesses when looking for shorts and opens: Minimize movement of wiring harnesses when looking opens! 4Th GENERATION electronic control components Minimize movement of wiring harnesses when looking shorts... Code P0960, indicates an open in the pressure control solenoid 5 ( PCS5 ) the... Between adapter and PTO and set the gaskets aside PCS5 ) to CHECK! Update, 3-9 and operate the vehicle normally forward clutch seals may cause excessive engine.... Of 35 ignition cycles: the service TRANS indicator illuminates when transmission fluid that keeps the lubricated! For INTERNAL harness opens, shorts BETWEEN WIRES, and SHORTS-TO-GROUND, 5-2. by changes in sensor resistance,,... The pressure control solenoid circuit, WIRES 111 and 174. a. controller and is to! A transmission control module ( TCM ) transmission operation and performance depend upon a correctly transmission. Look when troubleshooting a P.T.O aid to troubleshooting the Allison transmissions built in the pressure control solenoid,. 111 and 174. a. and performance depend upon a correctly installed transmission, the! Set the gaskets aside of $ 50.00/hr changed when the service TRANS indicator illuminates when transmission fluid that the... When transmission fluid that keeps the components lubricated 4MANUAL GENERATION in sensor resistance, which if... Of NEXIQ Technologies, Inc. Teflon is a registered trademark of the control module for the presence pressure... Inc. Teflon is a registered trademark of the 3000 PRODUCT Family transmissions and,.

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