NHTSA ID Number: 10244825
Manufacturer Communication Number: CBR-206 202310
TSB/Document Date: 2023-11-03
Summary
CBR: 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.
Uncontrolled Copy
ID #
CBR-206
Version
6
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
Abstract
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.
Content
Published: 10/12/2023
Valid for:
Mack
- CHU, GU, GR,AN, CXU
Volvo - VNR,VNL, VNM, VAH, VHD
Model Years - 2016 TO CURRENT
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.
; Live UI
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.
Tags
k49053322
p215a-64
p215a64
Categories
Make and Model > Mack > CXU/CHU/PI - Pinnacle
Live UI
;Make
and Model > Volvo > VNL
Make and Model > Volvo > VNR
Make and Model > Volvo > VAH
Make and Model > Volvo > VHD
Emission Standard > US17 > US17+OBD16
Emission Standard > US17 > US17+OBD18
Powerplant > Volvo > D11
Powerplant > Volvo > D13
Make and Model > Mack > MRU/TE - TerraPro
Powerplant > Mack > MP7
Powerplant > Mack > MP8
Make and Model > Mack > AN - Anthem
Make and Model > Mack > GU/GR - Granite
; Live UI
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TSB/Document ID: CBR-206 202310
Replacement Service Bulletin Number:
MFR Communication Date: 2023-10-12
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
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