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Access to secured vehicle data

By autotech-nath on October 27, 2022

A number of vehicles now require a manufacturer-specific access authorisation in order to perform active diagnostic tasks, such as the calibration of driver assistance systems or resetting of service notifications. This can present most independent workshops with some serious problems. To overcome this, Bosch has developed Bosch Secure Diagnostic Access (SDA) which provides access to security- protected diagnostic contents using ESI[tronic] diagnostic software.

Since August 2021, workshops using ESI[tronic] 2.0 Online, combined with a license for Control Unit Diagnosis, are able to access protected electronic systems of several vehicles produced by the Volkswagen group via SDA. Bosch SDA meets the requirements of the current security level for tasks on vehicles produced by the VW group. Ever since the ESI[tronic] 2.0 Online and KTS 250 software updates released earlier this year, users can now also use SDA to access protected vehicle data of Fiat, Alfa Romeo, Lancia, Abarth, Chrysler, Jeep and Dodge/RAM vehicles, plus Mercedes-Benz vehicles. The company is working closely with the development departments of additional vehicle manufacturers in order to expand the access possibilities via SDA.

Personal Bosch ID

Bosch SDA is a single access point for secure and authorised diagnostics with no extra charges if you have an ESI subscription. To use Secure Diagnostic Access, members of workshop staff need to create a personal free-of-charge Bosch ID consisting of an e-mail address and a self-chosen password. Once registered, they will be granted access to all protected diagnostic data.

To access protected data of Mercedes-Benz vehicles, an additional process step called User Identification for two factor authentication (2FA) is required, besides creating a Bosch ID.

Explanations and hints

There are two ways of accessing SDA via ESI[tronic] workshop software. Users can activate the SDA access within ESI[tronic] right at the beginning of their diagnosis using their Bosch ID. ESI[tronic] also informs users: Once the vehicle is connected for diagnostic purposes, ESI[tronic] opens a pop-up window pointing out that the respective vehicle is equipped with a protected electronic system. By means of a link, users can also access the SDA Help Center providing additional support. It contains important information concerning topics related to Secure Diagnostic Access, such as frequently asked questions as well as explanatory images and videos.

A prerequisite for the use of Bosch Secure Diagnostic Access is ESI[tronic] 2.0 Online diagnostic software and a valid license for Control Unit Diagnosis, as well as a stable internet connection. A diagnostic tester of the current Bosch KTS generation – such as KTS 590, KTS 560, KTS 350 or KTS 250 – is also required.



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