IK1300163 Service Bulletin/Repair Instructions

IK1300163 ­ Eaton Transmission Stuck In Gear During 8 -7 Downshift
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Countries:
CANADA, UNITED STATES Document ID: IK1300163
Availability:
ISIS, FleetISIS, NotSIR
Revision:
0
Major System:
TRANSMISSION
Created:
11/21/2017
Current Language: English
Last Modified: 12/19/2017
Other Languages: NONE
Author:
Viewed:
William Katschke
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Title : Eaton Transmission Stuck In Gear During 8 ­7 Downshift

Applies To : LT/RH with A26 or X15 and Eaton AMT (Automated Manual Transmission)
CHANGE LOG

Please refer to the change log text box below for recent changes to this article:

12/19/2017 - Initial Article Release


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DESCRIPTION

This document will guide the user through steps to take for trucks equipped with Eaton AMT losing vehicle speed while

downshifting from 8th to 7th.
A normal 8­7 shift should take between 1.5 ­ 2.0 seconds without significant loss in vehicle speed.
SYMPTOM(s)

Truck losing vehicle speed while downshifting from 8th to 7th and/or Check Transmission light on

Diagnostic Trouble Code(s) & Dashboard Indicator Light(s):
DTC/Light
Eaton Fault Code
Description
781-7
FC73
Failed to Engage Gear
Customer Observations or Concerns:

Truck losing vehicle speed while downshifting from 8th to 7th and/or Check Transmission light on.
SPECIAL TOOL(s) / SOFTWARE
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 1/2/2018
IK1300163 ­ Eaton Transmission Stuck In Gear During 8 -7 Downshift
Tool Description
Tool Number
Comments
Page 2 of 3
Instructions
Eaton ServiceRanger 4
SERVICE PARTS INFORMATION

Kit Description
Part Number
Quantity Required
N/A
N/A
N/A
DIAGNOSTIC STEP(s)
Step Action

#1 DIAGNOSTIC:
Decision

Yes. Proceed to Step #2
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 1/2/2018
IK1300163 ­ Eaton Transmission Stuck In Gear During 8 -7 Downshift
Page 3 of 3
No. Disregard this article

Does the truck lose vehicle speed while downshifting from 8th to 7th gear?
Step Action
Decision
DIAGNOSTIC:
Yes. Follow Eaton Diagnostic Steps

(Link below in Other Resources)
Is FC73 (781­7) present in the Health Report?

#2
No. Follow Repair Steps below
REPAIR STEP(s)

1. Connect EST, using ServiceRanger 4 verify TECM configuration is set to "Enhanced Gear Engagement 553528"

2. If not then update TECU configuration to "Enhanced Gear Engagement 5573528"

3. Test drive to verifty proper operation
WARRANTY INFORMATION

Warranty Claim Coding:

Refer to the Warranty Coding Manual for Group and Noun Codes.
Standard Repair Time(s):

Refer to the SRT Manual for Repair Times
OTHER RESOURCES

Master Service Information Site

UltraShift PLUS Automated_TRTS0940 EN_US_0317
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Copyright © 2018 Navistar, Inc.
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 1/2/2018

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