PassThru XL Library Use of Vector XL-Hardware Interfaces for Applications that are based on SAE J2534 If a diagnostic or reprogramming application is built upon a J2534 programming interface, then it is possible to use PassThru hard-ware Properties Overview > Standardized communication driver for the Vector XL hard-ware devices from different manufacturers. This allows to exchange interfaces the communication layer without modifying the application. For these reasons, interest is growing in ECU diagnostics and reprogramming via a PassThru interface in developing and servic-ing > ISO transport protocol implementation > OEM-specific applications based on J2534 can be operated via Vector XL-Hardware interfaces > J2534 applications can be operated simultaneously with various Vector tools, such as CANoe or CANape via a Vector XL-Hardware interface. > Uniform programming interface with reasonable number of functions that conceals the hardware specifics and communication protocols modern vehicles. For vehicles that are sold in the US market, legal requirements have even been in place since 2004 requiring that OEMs provide a PassThru-based application for reprogramming ECUs. Combined with the Vector XL interface hardware, the Vector PassThru XL Library provides a J2534 compliant PassThru Inter-face/ 2/20 Device. Simultaneously, a Vector tool such as CANoe or CANape can be operated over the same hardware interface. Consequently, you only need one hardware interface to operate both your J2534 application and various Vector development tools. This makes the Vector PassThru XL Library a cost-effective solution, especially for OEMs and suppliers who already use a Vector development tool with a XL hardware interface and also utilize or develop J2534-based test and flash applications. Application Areas In the field of vehicle electronics development and vehicle diag-nostics there are many OEM-specific applications that communi-cate with ECUs. If these applications are based on proprietary communication solutions, exchanges between communication components involve considerable effort. A modular and reusable solution can help here to save on costs and development effort. The SAE J2534 PassThru standard defines a common communication driver that can be used for ECU diagnostics and ECU reprogramming. Application architecture utilizing the PassThru XL Library