Universal OBD Tester

The Universal OBD Tester (UOT) is a customizable, scriptable production line test system designed for high-volume manufacturing of OBD-enabled devices. Universal OBD Tester - front view

Having the ability to quickly and accurately test your product on the assembly line is vital to the success of any high-volume project. The UOT can be used for both board-level and final quality control testing, and is capable of automatically measuring dozens of parameters, performing stress tests, identifying defects and pinpointing their cause down to individual components or manufacturing operations.

The Universal OBD Tester is typically used in conjunction with a test fixture, controlling the device-under-test (DUT) via the built-in UART, Bluetooth, Wi-Fi, or USB interface. The C#-based script engine makes it easy to write and edit custom test scripts, and the API enables simple integration with your existing test software.


  • Supported OBD protocols:
    • SAE J1850 VPW & PWM
    • ISO 9141
    • ISO 14230
    • ISO 15765 (HS-CAN)
    • Medium Speed CAN
    • Single Wire CAN
  • DUT interfaces:
    • UART
    • USB (with power isolation)
    • Wi-Fi (802.11)
    • Bluetooth
  • Individual UOT units are interchangeable
  • Test audit database
  • 3 analog inputs
  • 4 digital inputs
  • 4 digital outputs
  • Voltage stress test
  • Open circuit/short circuit detection
  • Wide-range current sensing (from 5 uA to 2A)
  • Visual and audible “Pass/Fail” indicators
  • Automatic or manual start test options (DUT plug-in, lid switch, button press)


  • C#-based test engine (SC-Script)
  • Multi-channel testing (up to 16 channels per test station)
  • Provides abstracted and low level access to hardware
  • API for integration with existing test software (e.g., LabView)

Typical Connection Diagram

Universal OBD Tester Typical Connection Diagram

Shown with optional test fixture and Windows PC (not included). 

User Interface Diagram

UOT user interface diagram - front
Universal OBD Tester Back Diagram
Universal OBD Tester Board Diagram

For more information, or for pricing, please contact us.