27-026
Service Bulletin Details
Public Details for: 27-026
Eaton ultrashift plus excessive engine over-speed lamp on.
- 2017 - 2016 - 2015 - 2014 - 2013 - 2012 - 2011 -
Models from 2017
| 2017 KENWORTH T660 |
| 2017 KENWORTH T680 |
| 2017 KENWORTH T800 |
| 2017 KENWORTH T880 |
| 2017 KENWORTH W900 |
Models from 2016
| 2016 KENWORTH T660 |
| 2016 KENWORTH T680 |
| 2016 KENWORTH T800 |
| 2016 KENWORTH T880 |
| 2016 KENWORTH W900 |
Models from 2015
| 2015 KENWORTH T660 |
| 2015 KENWORTH T680 |
| 2015 KENWORTH T800 |
| 2015 KENWORTH T880 |
| 2015 KENWORTH W900 |
Models from 2014
| 2014 KENWORTH T660 |
| 2014 KENWORTH T680 |
| 2014 KENWORTH T700 |
| 2014 KENWORTH T800 |
| 2014 KENWORTH T880 |
| 2014 KENWORTH W900 |
Models from 2013
| 2013 KENWORTH T660 |
| 2013 KENWORTH T680 |
| 2013 KENWORTH T700 |
| 2013 KENWORTH T800 |
| 2013 KENWORTH T880 |
| 2013 KENWORTH W900 |
Models from 2012
| 2012 KENWORTH T2000 |
| 2012 KENWORTH T660 |
| 2012 KENWORTH T700 |
| 2012 KENWORTH T800 |
| 2012 KENWORTH W900 |
Models from 2011
| 2011 KENWORTH T2000 |
| 2011 KENWORTH T660 |
| 2011 KENWORTH T700 |
| 2011 KENWORTH T800 |
| 2011 KENWORTH W900 |
TIB 26-027 - Eaton UltraShift Plus Excessive Engine Over-Speed Lamp On Page 1 of 3 Technical Information Bulletin 27-026 Section Transmission - 26 Subject Eaton UltraShift Plus Excessive Engine Over-Speed Lamp On Release Date 7/28/2016 Condition Engine over-speed warning comes on during a downshift when engine =>2000RPM for 1 second. Chassis Affected T680s and T880s MY2013 through MY2017 built from 01/24/2014 through 11/24/2015 with a PACCAR MX-13 and PACCAR MX-11 Engines and Eaton UltraShift PLUS transmission. All T2000s, T660s, T700s, T800s, and W900s MY2011 through MY2017 built after 2/08/2010 with a PACCAR MX-13 and MX11 Engines and Eaton UltraShift PLUS transmission. Action FIX-AS-FAIL https://eportal.paccar.com/dealer/uskw/en/service/vehiclebulletins/vehiclefieldservice/Page... 7/29/2016 TIB 26-027 - Eaton UltraShift Plus Excessive Engine Over-Speed Lamp On Page 2 of 3 If a customer comes into your dealership and demonstrates the condition above on T680 or T880, reflash the Cab Electronic Control Unit (CECU) and the Instrument Cluster with the latest software. On T2000, T660, T700, T800, and W900’s, disable the engine over-speed warning light. Use the procedure below. Warranty Through Standard Warranty (includes Extended Warranty), Kenworth will pay applicable labor: 0.3 hours labor to reflash the CECU and Instrument Cluster Software with ESA and, where appropriate, disable the over-speed warning light. (a long claim must be filed) File an additional claim for extraordinary circumstances. A claim for standard labor must be filed first. Failure Location: Failure Type: SRT Code: CLAIM CODING 026-015-021 Work Accomplished: 363 Responsibility Code: 045-066 Claim Type: 58 01 N/E Background Over-Speed Warning Change History: T680 and T880 before any fixes: 2000 RPM – (no delay) “Engine Speed Warning – Up Shift or Slow Down” 2150 RPM – (no delay) “Engine Over-Speed – Up Shift or Slow Down" 2300 RPM – (no delay) “Max Engine Speed Exceeded – Service Required” with chime, clears with long key cycle (no faults on engine side). T680 and T880 ESA software update released April 2015: Must be over 2000 RPM for 5 seconds before 1st warning will pop up, other warnings remain the same. T680 and T880 ESA software update released November 2015: Completely removes 2000 RPM warning, other warnings remain the same. For T2000s, T660s, T700s, T800s, and W900s, in which the software update has not been released yet, when released it will completely remove the 2000 RPM warning, other warnings remain the same. Procedure T680-T880 Reflash CECU and Instrument Cluster Software: Verify the current CECU software is version P30-1011-129 or greater. If it is not follow the procedures below Reflash Procedure On T2000, T660, T700, T800, and W900’s disable the Over-Speed Warning Light: https://eportal.paccar.com/dealer/uskw/en/service/vehiclebulletins/vehiclefieldservice/Page... 7/29/2016 TIB 26-027 - Eaton UltraShift Plus Excessive Engine Over-Speed Lamp On Page 3 of 3 Connect the computer to the vehicle with a Data Link Adapter (DLA) Open ESA From ESA home screen, click Connect. Click Program. Under All tab find parameter called “Engine Over Rev Warnings”, change it to disable. Click program in top right, wait a few seconds for message to say programming finished. For additional information: ESA 4 Training Module Authored by: JS Access to PACCAR’s Enterprise Portal is provided as a benefit of doing business with PACCAR. All applications and content accessed through this system are confidential and proprietary and the property of PACCAR Inc and its suppliers, and must be kept strictly confidential pursuant to the contract licensing such access. Disclosure, publication, release or distribution of any material found on PACCAR systems to any person other than employees with a need to know such information is strictly prohibited. All activity on this system is monitored. If PACCAR suspects or discovers any unauthorized activity, access may be immediately terminated without prior notification. Violators may be subject to legal action. © Copyright 2016 PACCAR Inc. All rights reserved. We welcome your feedback on this page. For technical questions or concerns about this page, please contact the DealerNet Webmaster. https://eportal.paccar.com/dealer/uskw/en/service/vehiclebulletins/vehiclefieldservice/Page... 7/29/2016