DIY Diagnostics

Brand New in Package!

Wireless Bluetooth OBDII ELM 327 Code Reader Tool

Get Rid of the Wire! Connect to your computer without the need to run wires or get tangled in cords. The ultimate solution for in-vehicle laptop users!

Wireless Interface, Read & Clear Generic and Manufacture Specific Codes, Monitor Status, and Retrieve VIN Data! CANBUS Support! Works on almost any car from 1996 to present!

  • 100% Unconditional Satisfaction Guaranteed!
  • 30-Day Money Back Guarantee!
  • Full 1 Year Warranty with All Products!

You will receive your package through USPS Priority Mail (for packages shipped within the continental USA) within 2-3 days from when payment is received and has cleared.

Payment methods accepted: PayPal, Credit/Debit Card, Money Order,
Cashiers Check, or Cash.


Even if you don't repair your vehicle yourself, knowing the Diagnostic Trouble Code number before taking the vehicle in for repair is good knowledge to have. Once the vehicle is repaired, the Diagnostic Trouble Code(s) can be erased and the Check Engine light turned off using this scan tool.

In areas that require a smog test, an illuminated Check Engine light fails the emission test, even if the repaired vehicle might otherwise pass inspection. This OBDII Scan Tool turns off the Check Engine light.

Another highly useful application for the scan tool is purchasing used vehicles. Used vehicles can have all sorts of expensive mechanical or electrical problems. Since our scanner is a portable device, the buyer can connect the scan tool to the vehicle and in a few seconds determine if the vehicle has detected a problem. Remember, not all Diagnostic Trouble Codes illuminate the Check Engine light and a scan tool is the only way to obtain the information.

This tool supports all OBDII protocols:

  • SAE J1850 PWM
  • SAE J1850 VPW
  • ISO 9141-2
  • ISO 14230 (KWP2000)


Controller Area Network (or CAN) is the newest automotive communication protocol. CAN Protocol is around 50 times the speed of the older protocols. CAN was used in some cars starting in 2003, and is said to be the only protocol that will be used after 2007.

For other code readers, see our store!


The Bluetooth ELM327 is the newly developed wireless scan tool. It supports all OBDII protocols.

Supported Features Include:

  • Data graphing and logging.
  • Freeze Frame data.
  • Continuous and Non-Continuous Oxygen Sensor test results.
  • Works with all OBDII compliant vehicles.
  • Wireless (Bluetooth)
  • Software included for Palm, PDA
  • Software included for Windows PC.
  • Software included for Windows Smartphone
  • Supports ISO 9141, KWP2000.
  • Supports SAE J1850.
  • Supports CAN Bus.


  • Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database).
  • Clear trouble codes and turn off the MIL ("Check Engine" light).
  • Display current sensor data, including:
    • Engine RPM
    • Calculated Load Value
    • Coolant Temperature
    • Fuel System Status
    • Vehicle Speed
    • Short Term and Long Term Fuel Trim
    • Intake Manifold Pressure
    • Timing Advance
    • Intake Air Temperature
    • Air Flow Rate
    • Absolute Throttle Position
    • Oxygen sensor voltages/associated short term fuel trims
    • Fuel System status
    • Fuel Pressure, and many others.

Available Software – This tool comes with some software, but many other software titles can be downloade for free. Some include:

  • GM Mode 22 Scan Tool by Terry
  • OBD Gauge for PalmOS and Pocket PC by Dana Peters
  • OBD Logger by Jonathan Senkerik
  • OBDII ScanMaster by Wladimir Gurskij (ScanMaster 3.52 – local copy)
  • OBD2 Scantool by Ivan Andrewjeski
  • OBDII for ELM322 by David Huffman
  • pyOBD by Donour Sizemore for MacOSX and Linux
  • RDDTC by Pete Calinski
  • Real Scan by Brent Harris
  • ScanTest for Pocket PC by Ivan Ganev aka a-ser
  • wOBD by WDT, and many others!


Does My Car Have OBDII?

All cars and light trucks built and sold in the United States after January 1, 1996 were required to be OBDII equipped. In general, this means all 1996 model year cars and light trucks are compliant, even if built in late 1995.

Two factors will show if your vehicle is definitely OBDII equipped:

  1. There will be an OBDII connector located under or around the dashboard, and
  2. There will be a note on a sticker or nameplate under the hood: "OBDII compliant".

Where is the connector located? The connector must be located within three feet of the driver and must not require any tools to be revealed. Look under the dash and behind ashtrays.
OBD sticker

The Three Flavors of OBDII

While the parameters, or readings, required by OBDII regulations are uniform, the auto manufacturers had some latitude in the communications protocol they used to transmit those readings to scanners. Naturally, each felt they had the one true way, so we have three different OBDII communications protocols in use.

What Communications Protocol does my vehicle use?

As a rule of thumb, GM cars and light trucks use SAE J1850 VPW (Variable Pulse Width Modulation). Chrysler products and all European and most Asian imports use ISO 9141 circuitry. Fords use SAE J1850 PWM (Pulse Width Modulation) communication patterns.
There are some variations among captive imports such as the Cadillac Catera, a German Opel derivative, which uses the European ISO 9141 protocol.

On 1996 and later vehicles, you can tell which protocol is used by examining the OBDII connector:
J1850 VPW — The connector should have metallic contacts in pins 2, 4, 5, and 16, but not 10.
ISO 9141–2 — The connector should have metallic contacts in pins 4, 5, 7, 15, and 16.
J1850 PWM — The connector should have metallic contacts in pins 2, 4, 5, 10, and 16.

picture of plug

USB ELM327 CAN Computer Based OBDII Tool


Some compatible vehicles include: Ford, Chevrolet, Chrysler, Acura, BMW, Buick, Cadillac, Daewoo, Dodge, Fiat, GMC, Honda, Hyundai, Infinity, Isuzu, Jaguar, Jeep, Kia, Land Rover, Lexus, Mazda, Mercedes-Benz, Mercury, Mini, Mitsubishi, Nissan, Oldsmobile, Peugeot, Pontiac, Porsche, Renault, Saab, Saturn, Seat, Skoda, Smart, Suzuki, Toyota, Volkswagen, Audi, Volvo, and many others.
(Note: may not be compatible with some VW, Audi, and Subaru vehicles)

For a complete list of tested vehicles, click on the link below: ↓

Vehicles Tested with OBDII Scanner

For VW/Audi Specific or CAN Compatible Scanners, see our store!


  • Install supplied or other software on computer.
  • Turn the vehicle ignition off .
  • Locate the 16-pin Data Link Connector and plug the cable into the connector.
  • Turn the ignition on (needn't start the engine) and press enter
  • The scanner will now search for the specific protocol for your vehicle.
  • Follow On-Screen Prompts and Menus!