NHTSA ID Number: 10145217
Manufacturer Communication Number: K49053322
TSB/Document Date: 2018-10-09
Summary
Vehicle Speed Factor (K-Factor) Programming - Speed Factor Value Incorrect When Calculated In Premium Tech Tool (PTT); Speedometer Reading Incorrectly Following A Change To Vehicle Speed Factor - US17+OBD16 And Newer Emissions, Common Model Year 2018 And Newer
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TSB/Document ID: K49053322
Replacement Service Bulletin Number:
MFR Communication Date: 2018-09-06
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
MFR Component System:
MFR Component Subsystem:
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Solution K49053322
Wednesday, September 26, 2018 9:34:26 PM CEST
ModelsTE-TerraPro , GR-Granite , PI-Pinnacle , AN-Anthem
VNR , VNL , VHD , VAH
Engine family
Engine family
11L Engine , 13L Engine , MP7 , MP8
Emission Standard
Emission Standard
2018 , OBD2017 , US17
** SOLUTION **
Title
Vehicle Speed Factor (K-Factor) Programming - Speed Factor Value Incorrect When
Calculated In Premium Tech Tool (PTT); Speedometer Reading Incorrectly Following A
Change To Vehicle Speed Factor - US17+OBD16 And Newer Emissions, Common
Model Year 2018 And Newer
Cause
Newer vehicles may display an incorrect speedometer reading in the Instrument Cluster
following Vehicle Speed Sensor (VSS) Calibration. following a drive axle ratio or tire
size/model change.
This issue is caused by a conversion error in PTT. It has been determined that the
calculated value is correctly displayed, but the value that is programmed is incorrect.
Solution
Prior to performing any steps below, ensure that PTT is the current version. At the
time of this solution's composition, PTT version 2.6.70 is the current release. The
conversion error will be fixed in a future release. If a newer version is available,
PTT should be updated and the issue confirmed to still exist prior to proceeding.
A. Calculate the Vehicle Speed Factor
1. Run PTT Operation 3829-08-03-06 Vehicle Speed Factor, located under the
Calibrate tab.
2. Enter the Drive axle ratio and Tire Revolutions per Mile (Revolutions
per Kilometer) as required
3. Press the Play button in the Step 1 box on the left-hand side of the screen. The
Calculated Value box will display the Speed Factor. This value is correctly
calculated.
4. DO NOT PRESS PLAY IN THE STEP 2 BOX. Copy or record the value
displayed in the Step 1 box, then exit the Operation.
B. Program the Calculated Value
1. Run PTT Operation 1700-22-03-03 Parameter Programming, located under the
Program tab.
2. Once parameters have loaded, search for or locate parameter MH, Vehicle Speed
Factor US.
3. Enter the value that was copied or recorded in Part A as the new value for
parameter MH.
4. Complete the parameter programming operation to save the new Vehicle Speed
Factor value.
Solution visibility
Dealer distribution
Function(s)/component(s) affected
Function affected
dashboard/information display , Diagnostic tool
Function Group
Function Group
382 engine and transmission instrument , 383 speedometer; trip meter; hour counter;
clock
Customer effect
Main customer effect
acceleration/speed , calibration/programming/pairing/missing operation
Conditions
Vehicle operating mode
when driving
Other conditions
after a workshop procedure on the vehicle
Administration
Author
RU4469V
Dealer ID
RU4469V
Last modified by
RU4469V
Creation date
27-07-2018 15:07
Date of last update
06-09-2018 19:09
Review date
02-01-2019 00:01
Status
Published
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