# 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.

- Type: Service bulletin
- NHTSA id: 10228728
- Published by NHTSA: 2023\-01\-05
- Manufacturer's number: M1490
- Manufacturer's date: 2023\-01\-01
- NHTSA component: EQUIPMENT; ELECTRICAL SYSTEM

## 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 \(Recall 0635\)

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10228728-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10228728-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Equipment and accessories

## Vehicles listed

- HARLEY\-DAVIDSON HARLEY\-DAVIDSON

JSON: [/v1/bulletins/10228728](/v1/bulletins/10228728)

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