# Service bulletin B340820

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: 10181224
- Published by NHTSA: 2020\-10\-19
- Manufacturer's number: B340820
- Manufacturer's date: 2020\-09\-01
- NHTSA component: ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM

## NHTSA's summary

SERVICE ACTION \- PROGRAM THE BODY DOMAIN CONTROL \(BDC\) UNIT: Aftermarket scan tools cannot read fault codes in the Dynamic Stability Control \(DSC\) unit via the On\-Board Diagnostic \(OBD\) socket. The DSC data is not processed correctly in the BDC and therefore cannot transmit any diagnostic requests via the OBD using aftermarket scan tools.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10181224-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10181224-9999.pdf)

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

## Components

Electrical system, Body control module

## Vehicles listed

- 2021 BMW R 1250 GS ADVENTURE
- 2021 BMW R 1250 RT
- 2016 to 2020 BMW X1
- 2016 to 2017 BMW X1 SAV
- 2018 to 2021 BMW X2

JSON: [/v1/bulletins/10181224](/v1/bulletins/10181224)

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