• Official Launch of OBDLink WiFi

    We are excited to announce that there is now a WiFi option for OBDLink. Currently OBDLink is the only OBD scan tool on the market available with both a WiFi and a USB interface.

    OBDLink WiFi is compatible with a wide range of software, including OBDwiz, ScanXL, and ScanMaster. It is also compatible with diagnostic software for the iPhone: DashCommand and Rev.

  • Switching Communication Baud Rate

    This article describes two methods for changing the communication baud rate. Method 1 is the "safe" method, however it requires firmware v2.0.1 or higher. Method 2 works with older OBDLink firmware, as well as the ElmScan 5 ELM327-based interfaces. However it must be used with caution, as it allows the baud rate to be set to a value not supported by the communication channel in use.

    Note that the baud rate can be set to the same baud rate as the current baud rate. This may be useful when you want to ensure that the baud rate remains the same when you reflash OBDLink with different firmware. For example, if you don't explicitly set the baud rate to 38400 for a unit that currently has v1.2.4 and upgrade it to v2.1.0, the default baud rate would change from 38400 to 115200 bps.

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  • Improve MPG: The Factors Affecting Fuel Efficiency

    Matthew Vea used an ElmScan 5 to log data from his 2006 Jeep Wrangler, and wrote a comprehensive article about it.

  • First Public Release of pyOBD-II (OBD comm library for Python)

    *pyOBD-II (a.k.a. "pyobd2") is a Python library for communicating with OBD-II vehicles. Its goal is to make writing programs for vehicle diagnostics and monitoring vehicle data as easy as possible. Being written entirely in Python, pyobd2 is intended to be portable across many platforms, including Mac OS X, Linux, BSD, and Windows.*

    pyOBD-II is written and maintained by Peter J Creath. You can [download pyOBD-II]( from Sourceforge.

  • Just Launched: Automon, Student Project Based on ElmScan 5 USB.

    Donal O'Connor is a B.Sc. student in the Software Development and Computer Networking program at the [Cork Institute of Technology]( in Ireland. In January of 2009, Donal presented his project idea for a final year student project, a Linux-based in-car diagnostic computer, and asked if would sponsor him. Donal has just finished his project, [Automon]( Read more about it, in Donal's [blog](

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  • Shipments of ElmScan 5 scan tools temporarily delayed.

    Due to a late delivery of a critical component, shipments of ElmScan 5, ElmScan 5 USB, and ElmScan 5 Bluetooth scan tools will be delayed. Orders placed between February 4th and February 10, will ship on Wednesday, February 11th (sooner, if possible).

    Please accept our apologies for the inconvenience. Sale prices in effect during this period, will be honored.

  • Which OBD-II Protocol is Supported By My Vehicle?

    All cars and light trucks built for sale in the United States after 1996 are required to be OBD-II compliant. The European Union OBD legislation is somewhat more complicated.

    An OBD-II compliant vehicle can use any of the five communication protocols: J1850 PWM, J1850 VPW, ISO9141-2, ISO14230-4 (also known as Keyword Protocol 2000), and more recently, ISO15765-4/SAE J2480 (a "flavor" of CAN). US car manufacturers were not allowed to use CAN until model year 2003, but as of model year 2008 and going forward, all vehicles will use the CAN protocol.

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  • How Do I Know Whether My Car is OBD-II Compliant?

    OBDLink® Vehicle Compatibility Chart

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