PCAN-OBD-2 API

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For on-board diagnostics, the OBD-2 standard defines the exchange of specific vehicle parameters. The client makes a request on the connected control units (ECUs) in the vehicle to which one or several ECUs are answering. As part of OBD-2, the ISO 15765-4 standard describes the CAN bus as a transmission option.

The PCAN-OBD-2 API implements the functionality of the standard on the basis of 15 functions. They are categorized in Tester Allocation, Configuration, Information, Services, and Communication.

According to ISO 15765-4, OBD-2 is based on UDS. Analog to this, PCAN-OBD-2 uses the PCAN-UDS programming interface for the exchange of diagnostic data.


    • Implementation of the OBD-2 protocol (ISO 15765-4) as on-board diagnostics standard
    • Windows® DLLs for the development of 32-bit and 64-bit applications
    • Thread-safe API
    • Physical communication via CAN using a CAN interface of the PCAN series
    • Uses the PCAN-Basic programming interface to access the CAN hardware in the computer
    • Uses the PCAN-ISO-TP programming interface (ISO 15765-2) for the transfer of data packages up to 4095 bytes via the CAN bus
    • Uses the PCAN-UDS programming interface (ISO 14229-1) for the communication with control units

    System Requirements:

    • Windows® 10, 8.1, 7 (32/64-bit)
    • At least 2 GB RAM and 1.5 GHz CPU
    • For the CAN bus connection: PC CAN interface from PEAK-System
    • PCAN-Basic API
    • PCAN-ISO-TP API
    • PCAN-UDS API

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