# 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: 10213260
- Published by NHTSA: 2022\-06\-04
- Manufacturer's number: M1490
- Manufacturer's date: 2022\-05\-23
- NHTSA component: EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE

## 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: Version 22.4 Release Date: • Week of May 23, 2022. Changes: • Rev Max vehicles – Improve error handling for more robust connection to vehicle • RA1250S – Modify Hand Control Module \(HCM\) to prevent heated grip mismatch Diagnostic Trouble Code \(DTC\) from occurring post reflash • Prevent selection of Electro Hydraulic Control Unit \(EHCU\) on RoadTest, due to module which causes unfriendly behavior.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10213260-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10213260-9999.pdf)

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

## Components

Electrical system, Equipment and accessories, Software

## Vehicles listed

- HARLEY\-DAVIDSON HARLEY\-DAVIDSON

JSON: [/v1/bulletins/10213260](/v1/bulletins/10213260)

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