LLC- Scan Tools, PC, iPhone, & Android based OBD-II (OBD2) Interfaces, OBD diagnostic software

OBDLink Scan Tool

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  • OBDLink, installation CD, OBD and USB cables.
  • OBDLink: front view.
  • OBDLink: 3/4 view.
  • OBDLink: USB view
  • OBDLink: OBD side view
  • Optional: carrying case

OBDLink Scan Tool

Part number: 4251

Availability: Out of stock


Quick Overview

This item is no longer in production. It had been superseded by OBDLink SX

OBDLink is the perfect tool for professionals and do-it-yourselfers alike. OBDLink includes our exclusive OBDWiz software that reads & clears 'Check Engine' codes, and provides loads of useful information directly from your vehicle's on-board computer. Features a USB 2.0 connectivity. Works with the largest spectrum of vehicles and PCs than any other scan tool on the market.

Product Description


OBDLink CI connection diagram


OBDLink is our latest, most advanced PC-based scan tool that supports all OBD-2 compliant vehicles. Use it to convert your laptop, iPhone, Android, or desktop PC into a sophisticated, easy to use diagnostic system — for a small fraction of the cost of comparable standalone units! The package includes everything you need to diagnose your vehicle's problems.

The free feature-packed OBDwiz diagnostic software included with the scan tool allows you to:

  • Turn off check engine light, and erase stored diagnostic information
  • Read and erase stored, pending, and permanent trouble codes (both generic and manufacturer-specific)
  • Access freeze frame information
  • Display, graph, and log 90+ real-time parameters
  • Create custom digital dashboards
  • Measure and display fuel economy
  • And much more!

Premium diagnostic software, such as ScanXL and ScanMaster, offers a myriad of additional features including Dynometer, multi-language support, and data manipulation tools . ScanXL’s Enhanced Diagnostics Add-ons offer support for thousands of enhanced manufacturer-specific parameters, as well as ABS and other proprietary systems.

The firmware inside the OBDLink unit is upgradeable, which means you can enjoy the latest features by downloading a free update.

Key features

  • USB interface
  • Bluetooth option (Class 1, up to 100 m/330 ft range)
  • WiFi option (802.11b/g)
  • Baud rates from 9600 up to 2M baud
  • Supports all legislated OBD protocols:
    • ISO15765-4 (CAN)
    • ISO14230-4 (Keyword Protocol 2000)
    • ISO9141-2 (Asian, European, Chrysler vehicles)
    • J1850 VPW (GM vehicles)
    • J1850 PWM (Ford vehicles)
  • Compatible with more diagnostic software than any other scan tool
  • Extended command set allows the tool to perform enhanced diagnostics not possible with ELM327-based scan tools
  • User upgradeable via free downloads
  • Can be powered from OBD or USB, for even easier firmware updates
  • Improved automatic protocol detection algorithm
  • Smart keep-alive algorithm helps ensure a stable connection on ISO and KWP vehicles
  • Large CAN memory buffer allows the scan tool to receive large amounts of data
  • Greatly increased data throughput delivers faster screen updates and more graph points
  • Dimensions: 3.75" x 1.7" (95 mm x 43 mm)


OBDLink is compatible with all model year 1996 & newer cars and light trucks sold in the United States, including all American, European, and Asian vehicles. OBD legislation varies from country to country, therefore if you reside outside the United States, make sure that your vehicle is OBD-2 compliant before purchasing this product. If you are in doubt, please remember that you can return the scan tool for a full refund within 90 days of purchase.

Package contents

  • OBDLink unit
  • USB cable (6 feet/1.8 m)
  • OBD-II cable (6 feet/1.8 m)
  • Quick Start Guide
  • Installation CD


OBDLink Quick Start Guide
USB drivers
OBDwiz Diagnostic Software
Finding OBDLink WiFi instructions on your OBDLink CD
Firmware Updates
STN1100 Family Reference Manual

See what other customers say about this tool, and ask questions on the Forum: OBDLink board.


This product comes with an unconditional 90-day money-back guarantee, and a 3 year warranty.

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