# Service bulletin M1559

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: 10219041
- Published by NHTSA: 2022\-09\-01
- Manufacturer's number: M1559
- Manufacturer's date: 2022\-08\-02
- NHTSA component: ELECTRICAL SYSTEM; ELECTRONIC STABILITY CONTROL \(ESC\):CONTROL MODULE:SOFTWARE; POWER TRAIN; ENGINE AND ENGINE COOLING; UNKNOWN OR OTHER

## NHTSA's summary

SERVICE BULLETIN M1559: REVOLUTION MAX ECM UPDATE. PURPOSE: This bulletin informs dealers that Harley\-Davidson has an Electronic Control Module \(ECM\) update that is available on Digital Technician II \(DT II\). This update is to address Diagnostic Trouble Code \(DTC\) P000000 setting and putting the bike into the fast idle position \(4,000 rpm\). The update also addresses the concern of an inadvertent tripping of P227900 for the intake air leak under certain riding conditions when no intake leak is present.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10219041-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10219041-9999.pdf)

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

## Components

Driver assistance, Electrical system, Engine, Transmission and driveline

## Trouble codes named

P0000, P2279

## Vehicles listed

- 2021 to 2022 HARLEY\-DAVIDSON RA1250
- 2021 to 2022 HARLEY\-DAVIDSON RA1250S
- 2022 HARLEY\-DAVIDSON RA975
- 2022 HARLEY\-DAVIDSON RA975S
- 2021 to 2022 HARLEY\-DAVIDSON RH1250S
- 2022 HARLEY\-DAVIDSON RH975

JSON: [/v1/bulletins/10219041](/v1/bulletins/10219041)

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