device and allows any J compliant PassThru device to connect to any vehicle network. PassThru Device Physical and Data Link Layer Protocol Support . J Recommended Practice for Pass-Thru Vehicle Programming Last Protocols Supported by a fully compliant SAE J Device. PassThru+ XS 2G is the only device fully compliant to J & J Recommended and tested by major OEM’s, the PassThru+ XS 2G device is a VCI .

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J2534 FAQs

The following features of ISO must be supported by the pass-thru device: This is dependent upon the make and model of vehicle. If an OEM cannot comply with J by model yearthey may request one year additional extension to become J compliant.

Always one start bit and one stop bit. Each OEM is required to make available their ECU reprogramming calibrations on their own service information web sites. Each protocol has different voltage and timing requirements, so this is no trivial task. Even though each printer has different hardware, all printer drivers ‘look the same’ to Windows applications.

More than a requirement, quality is one of the ACTIA group’s true values, and is shared by all its employees in a certified environment. If an OEM cannot retroactively implement the J pass-through reprogramming solution with or without special cables, they must make available to equipment and tool companies any information needed to develop aftermarket equivalents of their OEM-specific reprogramming hardware and software. Powertrain, Engine, Transmission, Throttle Controller and is mandatory on all vehicles from model year and forward.

It also expands the scope of what a J device can do. It is rooted in the group’s international dimension, which provides each and every one of our customers with local support that’s synonymous with proximity, fast response and flexibility.


Support for timer values that are less than or greater than those specified in ISO see Figure 30 in Section 7. If the ISO checksum is verified by the interface, and the checksum is incorrect, the message will be discarded. If the echoed byte received doesn’t match the transmitted byte, or if after a period of T1 no response was received, the transmission will be terminated.

It allows the interface J to be used for other purposes and includes features that are above and beyond emission related reprogramming needs. Interface shall not adjust timer parameters based on keyword values. Matching echoed bytes will not be placed in the receive message queue.

Only the optional features will be described by this document.

How to find the best web hosting service for business websites. This interface also includes some capabilities that may not be required for reprogramming, but allows the interface to be used for other purposes without placing a significant burden on the interface manufacturers. Since it was founded inACTIA’s spirit and policy of innovation have kept the group a length ahead of the competition.

J FAQs | Bosch Diagnostics

Even though each printer has different hardware. A consumer had to rely on prootcol car manufacturers dealership. No work has been initiated for the J conformance test cases. J framework includes application interfaces for the following functionality: The application is required to handle any special timing requirements based on receipt of this response code, including stopping any periodic messages.

J pass-thru reprogramming is only required for emissions based ECUs eg. Older vehicles without CAN can take anywhere from 15 to 60 minutes.

Passthru+ XS 2G & J protocol

A device alone is not enough to reprogram the ECU’s. The maximum sink current to be supported by the interface is mA.


Support odd and even parity in addition to the default of protoco, parity, with seven or eight data bits. No single frame or multi-frame messages can be received without matching a flow control filter. Through close and intensive cooperation with our customersas well as a strategy that is based on quality and innovation, the company has become the market leader in its core business.

When does the legislation take effect? The application needs to handle tester present messages when required. Note that a fee set by the OEM may apply. The EPA is forcing car manufacturers to release software that updates the firmware on their cars.

The following additional features of SAE J must be supported by the pass-thru device: This factor places the freelance dealership in a non competitive position which ultimately will impact a consumers’ freedom of dealership choice. The default bus idle period before the interface shall transmit an address, shall u2534 ms. These devices are not made by car manufacturers, but by any company that sees an opportunity. Please contact us for further information or price request What is an API?

To do that, you have to get the software application from the car manufacturer. Pgotocol programming time varies among vehicles based on communication speed of the protocol used, calibration file size, total number of calibration files, the number of ECUs to reprogram, and Internet connection latter is dependent protocll OEM.

No multi-frame messages can be transmitted without matching a flow control filter. The actual number of messages returned is in NumMsgs.