NHTSA ID Number: 11020175
Manufacturer Communication Number: M1490
TSB/Document Date: 2025-07-03
Summary
SERVICE BULLETIN M1490 (V 25.6.4): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: Revision. 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). Revision includes New Features and Changes. Version 25.6.4, Release Date: Week of June 16, 2025.
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TSB/Document ID: M1490
Replacement Service Bulletin Number:
MFR Communication Date: 2025-06-17
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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SERVICE BULLETIN
M1490
2025-06-17
M1490 (V 25.6.4): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES
Purpose for Service Bulletin
• 2023: CVO Street Glide (FLHXSE), CVO Road Glide
(FLTRXSE)
This bulletin informs dealers that Harley-Davidson has made
a software update to Digital Technician II (DT II).
• 2024: CVO Street Glide (FLHXSE), CVO Road Glide
(FLTRXSE), CVO Road Glide ST (FLTRXSTSE), Road Glide
(FLTRX), Street Glide (FLHX)
DIGITAL TECHNICIAN II (PART NUMBER: HD-48650)
• 2025: CVO Street Glide (FLHXSE), CVO Road Glide
(FLTRXSE), CVO Road Glide ST (FLTRXSTSE), CVO Road
Glide RR (FLTXRRSE), Road Glide (FLTRX), Street Glide
(FLHX), Street Glide Ultra (FLHXU)
Markets Affected
All markets are affected.
Changes
New Software Update
NOTE
The TECHLINK 3 (PART NUMBER: HD-48650-TL3) supports
Controller Area Network (CAN) and J-1850 protocol vehicles.
• Added Vehicle Picture for 2025 fat Boy Gray Ghost (FLSTFI)
• Added support for instrument (Part No. 70901272)
• Updated description text for ECM P&A Calibration 41001085
• 6-pin CAN vehicles are recommended to use Techlink 3
(TL-3)
• Support for LiveWire S2 Vehicle Supervisory Controller
(VSC) (Part No. 41001094A2D)
• All 2021 (and later) vehicles must use TL-3 (connects to Red
DLC on the vehicle)
• Added instruction to Module Replace to run procedure after
reflash when firmware is out of date
• 4-pin (J-1850) vehicles are recommended to use TL-3. This
includes all Fuel Injected Harley-Davidson vehicles 2002
and later.
Version 25.5.1
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).
• Week of May 12, 2025
For dealerships with firewall implementation, the URLs below
need to be white listed:
Changes
• https://hdpublicfacadesvc.bosch-automotive.com
• https://keycloak.bosch-automotive.com
Release Date:
New Features
• LiveWire S2 – Updated calibration release bundle 9.5.8
• LiveWire S2 – Updated configuration values for Body Control
Module (BCM) Module Replace. This enables accessory
power load shed functionality.
• Resolve DT II crash in V25.4.5 which occurred when Vehicle
Identification Number (VIN) not present in ECM
Version 25.6.4
• Week of June 16, 2025
• CVO Pan America (RA1250SE) - Remove Parts and
Accessories (P&A) Quickshifter Vehicle Setup, as this model
is factory equipped
New Features
Version 25.4.5
Updated Electronic Control Module (ECM) Calibration (resolves
post catalyst O2 sensor response)
Release Date:
• 2025: Road King Special (FLHRXS), Road Glide (FLTRT),
FreeWheeler (FLRT), Road Glide 3 (FLTRT), and Tri-Glide
(FLHTCUTG)
New Features
Release Date:
Updated Electro Hydraulic Control Unit (EHCU) Calibration
(Service Bulletin M1691 - Linked Braking Functionality
Improvement)
• Week of May 5, 2025
• Support 2025 CVO Road Glide RR (FLTRXRRSE)
• Support 2025 Fat Boy Gray Ghost (FLSTFI)
• Support “Legal” Stage 4 ECM calibrations for 2017-2020
Softail, Touring, and CVO models for California region
vehicles
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
Changes
Changes
• Tire Pressure Monitoring System (TPMS) Configuration –
Availability limited to vehicles which have optional tire sizes
• Issue fixed for certain 2025 models that were not offered
ECM calibrations
• TPMS Replacement – updated photo to show revised sensor
Version 25.2.1
• Vehicle Setup - Limit PTT/Cruise Swap to 2020 and prior
vehicles
Release Date:
• Infotainment Control Unit (IFCU) – System Info – Add P&A
Software version field
New Features
• Week of January 20, 2025
Release Date:
• Support 2025: Street Glide Ultra (FLHXU), Heritage Classic
(FLHC), Fat Boy (FLFB), Breakout (FXBR), Street Bob
(FXBB), Low Rider S (FXLRS), Low Rider ST (FXLRST),
Sportster S (RH1250S), Pan America ST (RA1250ST), CVO
Pan America (RA1250SE), CVO Road Glide ST
(FLTRXSTSE), CVO Street Glide (FLHXSE), CVO Road
Glide (FLTRXSE), Pan America S (RA1250S), Nightster
(RH975), Nightster S (RH975S) (including Guided
Diagnostics)
• Week of April 7, 2025
Version 25.1.1
Changes
Release Date:
• 2025 Pan America S and CVO Pan America (RA1250S/SE)Update BCM calibration to address Diagnostic Trouble Code
(DTC) C182215. Refer to Service Bulletin M1682 for details.
• Week of January 1, 2025
• Correct issue which caused ECM reflash to fail on 2025
Street Bob (FXBB) (France 35kw)
Version 25.3.3.
• Support 2025: Road King Special (FLHRXS), Street Glide
(FLHX), Road Glide (FLTRX), Tri-Glide Ultra (FLHTCUTG),
Freewheeler (FLRT), Road Glide 3 (FLTRT) (including
Guided Diagnostics)
Release Date:
• Support 2025: LiveWire S2 Alpinista (S2AP)
• Week of March 10, 2025
• Reflash – EHCU: Support P&A Inverted Fork offering for
2025 Road Glide (FLTRX) and 2024 Road Glide (FLTRX),
Street Glide (FLHX)
• 2025 Pan America ST (RA1250ST) and CVO Pan America
(RA1250STSE) – Module Replace – enable Original
Equipment (OE) Quickshift setting
• LiveWire S2 – Correction to various Guided Diagnostic
procedures and callouts
Version 25.3.4
Changes
• Touring ECM - Added DTC description for P250700
• Updated Data Item lists for 2025 Right and Left Hand Control
Modules (R&LHCMs)
• 2025 Softail EHCU – Descriptions added for Diagnostic
Trouble Codes (DTCs)
• LiveWire S2 – Onboard Charger (OBC) – Updated DTC list
• Vehicle Setup – “Gear Indicator Calibration” applied to 2025
Softail and 2025 Street Glide Ultra (FLHXU)
New Features
• IFCU Customization: Support for additional P&A speaker
options
Changes
• S2 Models – Update Telematic Control Unit (TCU) reflash
procedure for additional robustness
Version 25.0.2
Release Date:
• 2025 Softail (JPN) FLFB, FXBR – updated ECM Calibration
4100722D
• Week of December 2, 2024
• Vehicle Setup – TPMS – Updated tire selections to include
2025 Softail
• Support for 2025 Police Electra Glide (FLHTP), Police Road
King (FLHP), Police Road Glide (FLTRXP) and Pan America
S (RA1250S)
• 2024-2025 Touring Hand Control Reflash Support for part
numbers: 71500715A, 71500713A
Version 25.2.4
Release Date:
• Week of February 11, 2025
Changes
New Features
• Module Replace – Now supports Hand Control for applicable
models
• Reflash – Hand Control – enabled for 2024 CVO Street Glide
(FLHXSE), CVO Road Glide (FLTRXSE), Street Glide
(FLHX), Road Glide (FLTRX), and CVO Road Glide ST
(FLTRXSTSE)
• Added support 2025 Revolution® Max ‘MLY’ Vehicle
Identification Numbers (VINs)
• LiveWire 2024 S2DM EV3: Updated calibration for (OBC,
Rechargeable Energy Storage System (RESS), VSC, TCU)
modules
Version 25.2.2.
Changes
Release Date:
• Update to Service Information Portal (SIP) URL
• Week of January 22, 2025
2/3
M1490
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.
• 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).
• 2021 vehicles must use TECHLINK 3 (PART NUMBER:
HD-48650-TL3) (connects to Red DLC on the vehicle).
Digital Technician™ II
• The Digital Technician II software version updates are
automatic and occur while connected to the Internet.
• 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).
M1490
3/3
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