SERVICE BULLETIN
M1490

2024-12-06

M1490 (V 25.0.1): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES
Purpose for Service Bulletin
This bulletin informs dealers that Harley-Davidson has made
a software update to Digital Technician II (DT II).
DIGITAL TECHNICIAN II (PART NUMBER: HD-48650)

• LiveWire S2DM EV3: Updated calibration for (Onboard
Charger (OBC), Rechargeable Energy Storage System
(RESS), Vehicle Supervisory Controller (VSC), Telematic
Control Unit (TCU)) modules
Changes
• Update to Service Information Portal (SIP) URL

Markets Affected
All markets are affected.

• Modification to Body Control Module (BCM) turn signal active
test for issue where bike would not return to normal operation
upon test completion

New Software Update

• Description added for U018401 and C105800

NOTE
The TECHLINK 3 (PART NUMBER: HD-48650-TL3) supports
Controller Area Network (CAN) and J-1850 protocol vehicles.

Version 24.12.4

• 6-pin CAN vehicles are recommended to use Techlink 3
(TL-3)

Release Date:
• Week of October 2, 2024
New Features

• All 2021 (and later) vehicles must use TL-3 (connects to Red
DLC on the vehicle)

• 2018-2024 Softail Instrument Reflash Support for part
numbers: 70900651B, 70900655B, 70900684C, 70900703C

• 4-pin (J-1850) vehicles are recommended to use TL-3. This
includes all Fuel Injected Harley-Davidson vehicles 2002
and later.

• LiveWire S2 EV1 and EV6: Updated calibration for (OBC,
RESS, VSC, TCU) modules

TECHLINK 3 (PART NUMBER: HD-48650-TL3) will not support
Buell, VDO and Magneti Marelli vehicles (4-pin DLC). Support
for those vehicles is available via TECHLINK II (PART
NUMBER: HD-48650-1).

• Revolution® Max – Gear Position Calibration – Updated
logic for gear detection

For dealerships with firewall implementation, the URLs below
need to be white listed:

Changes

• LiveWire S2: TCU Provisioning instructs unplug Vehicle
Communication Interface (VCI) for 2 minutes if it doesn't
provision successfully

• https://hdpublicfacadesvc.bosch-automotive.com

• LiveWire S2: TCU Module Replace – added note to
procedure steps that TCU will be provisioned

• https://keycloak.bosch-automotive.com

Version 24.11.3
Release Date:

Version 25.0.1

• Week of September 13, 2024

NOTE
This version installs over (V24.5.2) and later DT II builds.

New Features
• LiveWire S2: TCU Reflash instructs user to attempt reflash
up to 4 times if the TCUTCU version did not update

Release Date:
• Week of November 15, 2024

• LiveWire S2 EV1 and EV6: Updated calibration for (OBC,
RESS, VSC, TCU) modules

New Features
• Support for 2025 models: FLHTP, FLHP, FLTRXP and
RA1250S
• Module Replace – Now supports Hand Control for applicable
models
• Reflash – Hand Control – enabled for 2024 models: FLHXSE,
FLTRXSE, FLHX, FLTRX, and FLTRXSTSE

Changes
• LiveWire S2: Module Replace – Improved sequence for TCU
provisioning
• Infotainment Control Unit (IFCU) – Module Replace now
enables “Mileage until Married” on IFCU

NOTE
In the interest of preserving customer safety and satisfaction, always check for outstanding recalls whenever any motorcycle is brought into your dealership for either maintenance or service.
ROUTING

INITIAL HERE

SERVICE
MANAGER

SALES MANAGER PARTS MANAGER

WARRANTY
PROCESS
MANAGER

LEAD TECHNICIAN TECHNICIAN NO. 1 TECHNICIAN NO. 2 TECHNICIAN NO. 3 RETURN THIS TO

• Livewire S2: Updated text to refer to 12 Volt battery as “12V”
instead of “LV”

Changes

LiveWire S2: TCU Reflash

• Updates to Diagnostic Trouble Codes (DTCs) for: Anti-lock
Braking System / Electro-Hydraulic Control Unit (ABS
EHCU), BCM

• Summary Report now reports actual software version
• Instructs user to attempt reflash up to 4 times if the TCU
version did not update

Version 24.10.0
Release Date:
• Week of August 27, 2024
New Features
• 2024 S2DM EV3: Updated calibrations for all OBC, RESS,
VSC, TCU

• LiveWire: Support for VSC (Part No. 41001094A2C)

• Vehicle Setup: BCM Customization improved screen loading
performance
• Vehicle Setup: Anti-lock Braking System (ABS) Service –
add current date write to BCM
• LiveWire S2: TCU: add ICCID and Signal Strength to System
Info
• IFCU – Added Over The Air (OTA) Status to System Info

Version 24.7.2

Changes

Release Date:

• Left Hand Control Module (LHCM) (Part No. 71500536) –
Fixed issue where System Info did not display

• Week of June 12, 2024

Version 24.9.1
Release Date:
• Week of August 19, 2024
New Features

New Features
2024 Touring:
• IFCU Customization supports new Parts and Accessories
(P&A) audio options

• LiveWire S2 – TCU Module Replace – perform provisioning

• Added Secondary Amp Hardware part number and software
version

• LiveWire S2 – Reflash: Updated TCU calibration

LiveWire S2DM EV3:

Changes

• Reflash: Updated TCU, VSC, OBC and RESS

• System Info – IFCU – Add Amp / Channel field to display
speaker location

LiveWire S2DM, S2MH:

• LiveWire S2MH – Add vehicle picture to Vehicle Identification
Number (VIN) entry screen
• LiveWire - Updated RESS Pre-programming logic on S2
vehicles

• Reflash: Updated TCU
Active Diagnostics: Added Coolant Pump test for LiveWire S2
vehicles
Changes

• Correction for Pan America S (RA1250S) BCM Module
Replace to account for Adaptive Ride Height

• Added Hand Control Module (HCM) (Part No. 71500522A
and 71500536A) for reflash support

• Remove Clutch Switch Data item from LiveWire S2 vehicles

Version 24.6.8

Version 24.8.8

Release Date:

Release Date:

• Week of May 6, 2024

• Week of August 5, 2024

Changes

New Features

• Add ECM calibration 41001693 for use in Korea

Advanced Module Replace for Harley-Davidson vehicles:

Version 24.6.7

• 2021 and later Revolution Max: Electronic Control Module
(ECM), BCM, Speedometer (SPDO)

Release Date:

• 2023 and later CVO Touring: ECM, BCM, IFCU
• 2024 Street Glide (FLHX), Road Glide (FLTRX): ECM, BCM,
IFCU

• Week of May 3, 2024
Changes
• Handle condition which caused DT II to crash during reflash

• Replaced original BCM and IFCU Replacement screen with
notification to visit “Module Replace” screen

Version 24.6.4

2024 S2DM EV1/ EV6: Updated calibrations for all OBC, RESS,
VSC

• Week of May 1, 2024

2024 S2MH EV1: Updated calibrations for all OBC, RESS, VSC
2024 S2DM, S2MH: Disabled Electro Hydraulic Control Unit
(EHCU) reflash.

2/4

Release Date:

New Features
LiveWire S2DM and S2MH:
• Reflash: Updated TCU, VSC, OBC and RESS

M1490

• Module Replace: Support Speedometer module
• New vehicle setup for Haptic Feedback configuration

• Improved error messaging during Active Tests for modules
requiring internet connection

CAN Reflash:

• Correct condition where LiveWire One (LW1) SPDO SPD
“Instrument replace” Vehicle Setup does not recover

• Automatically save Bus trace of failed updates to be available
for Troubleshooting/investigation

• Handle condition which caused DT II to crash on “BCM –
TPMS replacement” vehicle setup

2024 Revolution® Max:

• Handle condition which caused DT II to crash on 2024 CVO
Road Glide ST (FLTRXSTSE) IFCU customization

• BCM Customization: Add Fog Lamp support to Lighting
Options
2024 Touring:
• Reflash: Updated ECM and BCMreflash

Version 24.5.2
Release Date:
• Week of March 21, 2024
New Features
• Support for 2024 LiveWire S2MH (VIN, Reflash, etc)
• Display Current Speedometer version and available versions
on LiveWire S2DM and S2MH on reflash comparison screen

• Improved reliability for unauthorized tuned vehicles detection
• Improved reliability for HCM reflash and recovery
• Updates to DTC descriptions for various BCM

Version 24.3.3
Release Date:
• Week of February 6, 2024
New Features
• Full Reflash support for 2024 vehicles released on Jan 22,
2024 (FLHX, FLTRX, FLHXSE, FLTRXSE, RA1250SE,
FLTRXSTSE)

• 2020 and later Touring – “Side Stand Enable” Vehicle Setup
to support P&A Vehicle Hold Control offering

• Provide 2023-2024 FLHX, FLTRX, FLHXSE, FLTRXSE, and
FLTRXSTSE ECM reflash to resolve Crank, No Start
condition

• 2024 Revolution® Max – New “Instrument Replacement”
Vehicle Setup for (Part No. 70900896 and 70900897)

• Rev Max: 2021-2024 New LHCM and Right Hand Control
Module (RHCM) calibrations

• 2024 S2DM – Updated TCU and VSC reflash for applicable
regions

• 2024 S2DM: Updated calibrations for all modules

Changes
• Add “Pending Diagnostic Trouble Code (DTC)” support for
LiveWire vehicles
• Add additional state to Vehicle Connection Status for
operations which take extended time
• Update Clutch Switch Status Data item on 2024 Revolution®
Max
• Modification of reflash process for S2DM TCU to account
for module reboot at end of process
• Add QuickShift Vehicle setup for 2024 RA1250SE

• 2020+ ELW and LW1: New Vehicle Setup “Instrument
Replacement” for Hardware (Part No. 70901201)
Changes
• 2024 FLHXSE: Correction of issue where Brazil vehicles
were not offered ECM calibration
• 2024 S2DM: Updated DTC list
• 2024 S2DM: Add RESS Serial number field to System Info
• 2024 S2DM: TCU Reflash procedure timing adjusted for
improved reflash reliability
• 2023 FLTRXS: Correction to Guided Diagnostics for DTC
C1034

• Write Tire Pressure Monitoring System (TPMS) placard
values during BCM replacement procedure on applicable
models

• 2024 FLTRXP: Offer ability to enable “Stealth Mode”

Version 24.4.4

• Modification to TCU reflash process to make module updates
more robust

Release Date:
• Week of March 4, 2024
New Features
• Support for 2024 Hydra Glide Revival (FLI) (VIN, Reflash,
etc.)
• 2023 and 2024 CVO Street Glide (FLHXSE) – Reflash Sign
off page for vehicles impacted by Steering Ballast installation
• 2024 Revolution® Max – Vehicle Setup – Instrument
replacement for 70900896 and 70900897

• TPMS Setup: Additional tire size selections

• TCU: Remove data items which were not supported by the
module
• Resolver Offset Vehicle Setup – Improve error message
display

Version 24.2.4
Release Date:
• Week of January 22, 2024
New Features

Changes

• 2024 VIN support for Touring, Softail and Rev Max models

• Removed HCM reflash for 2024 Street Glide (FLHX), Road
Glide (FLTRX), CVO Road Glide ST (FLTRXSTSE), CVO
Street Glide (FLHXSE), CVO Road Glide (FLTRXSE)

• Active diagnostics for 2 Cam Variable Valve Timing (VVT)
(975cc) and 4 Cam VVT (1250cc)

M1490

3/4

• HCM Customization: Heated Grip enable/disable offered to
2023 and 2024 Touring CVO
• IFCU Customization: Expanded support for 2024 content
• 2023 CVO Touring: Updated ECM calibration
Changes
• 2024 FLTRT Radio Reflash added
• Revolution® Max – VVT Active Tests: Improvements to
stability
• TPMS Setup: Additional tire size selections

Version 24.1.4
Release Date:

• Reflash
• Guided Diagnostics
Changes
• Remove Icon to disable fuel pump on LiveWire vehicles

Required Dealer Action
Techlink
• The TECHLINK 3 (PART NUMBER: HD-48650-TL3) will
support CAN protocol vehicles (6-pin Data Link Connector
(DLC)) at launch. J-1850 protocol (4-pin DLC) support is
planned for early 2020.

New Features

• Techlink 3 will not support Harley-Davidson Buell, Vereinigte
DEUTA–OTA (VDO) and Magneti Marelli vehicles (4-pin
DLC). Support for those vehicles is available via TECHLINK
II (PART NUMBER: HD-48650-1).

Provide support for 2024 Touring, Rev Max, and Softail Vehicle
Identification Numbers (VINs) releasing on January 2nd, 2024

• 2021 vehicles must use TECHLINK 3 (PART NUMBER:
HD-48650-TL3) (connects to Red DLC on the vehicle).

• VINs

Digital Technician™ II

• Data Items

• The Digital Technician II software version updates are
automatic and occur while connected to the Internet.

• Week of January 2, 2023

• DTCs
• System Info
• Active Diagnostics
• Vehicle Setups
• Reflash
• Guided Diagnostics

Version 24.1.3

• If an internet connection is lost, the download continues from
where it stopped.
• If the Digital Technician II software is open, the application
prompts the user to exit before the install can continue.
• All Digital Technician II software updates are deployed
automatically via the XMS agent software and require a
minimum model year software version (example: Model Year
2021 = minimum version v21.0).

Release Date:
• Week of December 14, 2023
Changes
• LiveWire S2DM - Correct condition where Module Replace
was not offered when VSC did not have VIN.
• Correct condition where missing or invalid VIN caused
Unhandled Error (UE) when visiting BCM Customization.
• Correct issue where ABS reflash was not offered to 2023
FLHFB.
• Updated ECM Reflash for 2023 FLHXSE. Corrected Function
Select values.

Version 24.0
Release Date:
• Week of November 30, 2023
New Features
Provide support for 2024 Trike and Softail VINs releasing
on December 1st, 2023.
• VINs
• Data Items
• DTCs
• System Info
• Active Diagnostics
• Vehicle Setups

4/4

M1490