Service bulletin M1490

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

NHTSA's summary

SERVICE BULLETIN M1490: 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). New Software Update. NOTE: The TECHLINK 3 (PART NUMBER: HD-48650-TL3) supports Controller Area Network (CAN) and J-1850 protocol vehicles. • 6-pin CAN vehicles are recommended to use Techlink 3 (TL-3) • All 2021 (and later) vehicles must use TL-3 (connects to Red DLC on the vehicle) • 4-pin (J-1850) vehicles are recommended to use TL-3. This includes all Fuel Injected Harley-Davidson vehicles 2002 and later. This includes all Fuel Injected Harley-Davidson vehicles 2002 and later. 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). Version 23.0 Release Date: • Week of December 19th, 2022. New Features: Provide support for 2023 VIN's releasing on January 2nd, 2023. • Vehicle Identification Numbers (VINs) • Data Items • Diagnostic Trouble Codes (DTCs) • System Info • Active Diagnostics • Vehicle Setups • Reflash • Guided Diagnostics Partial support for 2020 and 2023 Legal (Parts and Accessories) calibrations (more to follow in future releases). Changes: • Reflash comparison screen – Improvements to Body Control Module (BCM) calibration version logic • Reflash – Alternating Current (AC) Power required – modify screen for more pronounced notification that action is required • 2019 and later Touring – Vehicle Setup – Improvements to Traction Control Telltale operation • 2019 Trike – Reflash – offer BCM version “YM” (Recall 0635) • Vehicle Setup - Trike Configuration – expanded offering to include 2019 vehicles (Recall 0635)

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Components

Electrical system, Equipment and accessories

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