TT7399EN
Service Bulletin Details
Public Details for: TT7399EN
Tech tip concerning transmission control module (tcm) recalibration for kenworth
Models from 9999
| 9999 ALLISON 4000 SERIES TRANSMISSION |
Models from 2013
| 2013 KENWORTH C500 |
| 2013 KENWORTH T800 |
| 2013 KENWORTH W900 |
TT7399EN October, 2013 Page 1 of 7 SUBJECT: Transmission Control Module (TCM) Recalibration for Kenworth MODELS AFFECTED: Kenworth T800, W900, and C500 models built between 1/25/13 07/15/13 and equipped Allison 4000 Series Product Family Transmissions and ISX Family 1 engines. NOTE: Kenworth dealers are asked to coordinate with Allison distributors/dealers for repairs as outlined in Kenworth Technical Information Bulletin (TIB) 27002. Kenworth has agreed to utilize and pay the Allison service channel for the repairs. Background: Kenworth manufacturing specified the incorrect torque converter type used with 5th Generation Controls transmissions and ISX Family 1 engines. Consequently, transmissions and calibrations were installed that contain either a TC541 or TC551 torque converter instead of the required TC561 configuration. Kenworth TIB 27002 instructs Kenworth dealers to contact Allison Transmission distributors/dealers to replace the currently installed torque converter pump element with P/N 29514713; thereby converting the torque converter to a TC561 configuration. This Tech Tip supplements Kenworth TIB 27002 by outlining the procedure for obtaining a replacement TCM calibration that corresponds to a TC561 torque converter after the currently installed pump element has been replaced. Refer to Table 1 for chassis numbers that are addressed in Kenworth TIB 27002. MQ 420915 Copyright © 2013 Allison Transmission, Inc. All Rights Reserved. TT7399EN October, 2013 Page 2 of 7 Table 1. Kenworth Chassis Numbers Kenworth Model Chassis Initial Configuration Final Configuration (after repairs) Transmission Serial Number E Number G Number Torque Conv. Group Torque Conv. Series E Number G Number Torque Conv. Group Torque Conv. Series 396153 T800 6610367902 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 396794 T800 6610366983 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 396795 T800 6610366865 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 369499 C500 6610370256 E018233 G018826 21926 TC561 388500 T800 6610363916 E017578 G019084 21928 TC541 E017544 G020240 21926 TC561 388665 T800 6610364100 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 390774 T800 6610365897 E017578 G019084 21928 TC541 E017544 G020240 21926 TC561 392054 T800 6610365766 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 392551 W900 6610366186 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 392552 W900 6610366185 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 392553 W900 6610366318 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 392554 W900 6610366317 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 392702 T800 6610366320 E017742 G018818 21927 TC551 E017592 G018817 21926 TC561 392703 T800 6610366319 E017742 G018818 21927 TC551 E017592 G018817 21926 TC561 393097 T800 6610366828 E017742 G018818 21927 TC551 E017592 G018817 21926 TC561 393098 T800 6610366827 E017742 G018818 21927 TC551 E017592 G018817 21926 TC561 393099 T800 6610366869 E017742 G018818 21927 TC551 E017592 G018817 21926 TC561 393100 T800 6610366870 E017742 G018818 21927 TC551 E017592 G018817 21926 TC561 393375 T800 6610366863 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 393398 T800 6610366864 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 394083 T800 6610368453 E017578 G019084 21928 TC541 E017544 G020240 21926 TC561 394294 T800 6610369821 E018264 G019277 21927 TC551 E018356 G019789 21926 TC561 396282 T800 6610368081 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 396443 T800 6610367742 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 397331 T800 6610368857 E017581 G018837 21927 TC551 E017481 G018816 21926 TC561 401853 T800 6610375421 E017481 G018816 21926 TC561 No torque converter parts change necessary. Confirm TC561 in TCM calibration. No torque converter parts change necessary. Confirm TC561 in TCM calibration. Copyright © 2013 Allison Transmission, Inc. All Rights Reserved. TT7399EN October, 2013 Page 3 of 7 Service Procedure: Engine torque management features require that the torque converter type is properly set in the TCM calibration; therefore, a calibration update is required. A new calibration must be reflashed into the TCM with the torque converter type set to TC561. Kenworth orders base model calibrations from Allison Transmission and customizes calibration settings using a Vehicle Electronic Programming Station (VEPS) in their manufacturing operations. Therefore, no fully calibrated Allison TCM part number is available. Refer to the following procedure to obtain a replacement TCM calibration part number to enter into Allison TCM ReflashTM and load into the TCM. 1. Log onto the Allison Extranet. 2. Launch the Allison Calibration Configuration Tool (ACCT) for Allison 5th Generation Controls. Refer to Figure 1. Figure 1. Launching ACCT 3. From the MANAGE REQUESTS screen, click on the “New Request” button. Figure 2. New Request Copyright © 2013 Allison Transmission, Inc. All Rights Reserved. TT7399EN October, 2013 Page 4 of 7 4. In the NEW REQUEST screen, click on the “Retrieve PAR” button. Refer to Figure 3. Figure 3. Retrieve PAR 5. Enter either the Vehicle Identification Number (VIN) or TCM serial number into the appropriate parameter search field and the click “Retrieve“ button. Figure 4. Retrieving PAR File a. If the following message is displayed (refer to Figure 5), perform the actions in step 5b; otherwise, proceed to Step 6. Copyright © 2013 Allison Transmission, Inc. All Rights Reserved. TT7399EN October, 2013 Page 5 of 7 Figure 5. PAR File Not Found b. Connect Universal Allison DOC® to the vehicle and make a Customer Modifiable Constant (CMC) change using the DOC reprogramming menu. Then, reconnect the laptop to the Internet and launch Allison DOC® to return the TCM calibration settings to the Allison server. Allow approximately 15 minutes then repeat steps 1 through 5. If this continues to be unsuccessful, contact the Allison Technical Assistance Center (TAC) at (800) 2525283. Provide the Vehicle Identification Number (VIN) and TCM serial number. 6. Enter distributor code, product family, release, vocational model, TCM type, and Service for PAR file type in the REQUEST DETAILS screen. Click on the Create button. Figure 6. Request Details – Create Copyright © 2013 Allison Transmission, Inc. All Rights Reserved. TT7399EN October, 2013 Page 6 of 7 7. Select Marketing Region in the drop down list. Click “Basic” tab on left side of page. Figure 7. Select Marketing Region – Basic Tab 8. Change Torque Converter selection to TC561 in drop down list. Click “Submit” button at the top of the page. Refer to Figure 8. Copyright © 2013 Allison Transmission, Inc. All Rights Reserved. TT7399EN October, 2013 Page 7 of 7 Figure 8. Torque Converter Selection a. Verify Engine Governed Speed is set to 1800 RPM. If Engine Governed Speed is not set to 1800 RPM, save the request. Contact Allison TAC at (800) 2525283 before submitting the service calibration request in ACCT. 9. Monitor your email for the approved Allison calibration part number. 10. Use Allison TCM ReflashTM to load calibration part number provided in step 9. 11. Notify Allison TAC at (800) 2525283 of the transmission serial number, VIN, and TCM serial number associated with this repair. 12. The Allison warranty department will update Unit History to reflect the transmission’s new torque converter type, TC561. NOTE: The issue outlined in this document is not an Allison Transmission defect in material or workmanship. Invoice for repairs are to be presented to the Kenworth dealer, not to the customer/driver. For further information regarding this issue, please reference Kenworth TIB 27002: Allison Transmission Has Incorrect Torque Converter for the Application. Copyright © 2013 Allison Transmission, Inc. All Rights Reserved.