OBDII Professional Scanner

If your car's Check Engine Light is on, you need this device. This scanner is a handy device for reading and erasing trouble code in  your vehicles. It can also display live data for your vehicle. It is small in size, robust in design, competitive in price and easy to use. This is a stand alone unit, it does not need a laptop computer to operate. By simply connecting the scanner with the diagnostic socket, the user will be able to read the trouble code. The trouble code description will be displayed directly on the screen, no need for search it in the user's manual. Each code will be continuously displayed until the [PREVIOUS] or [NEXT] key is pressed. This is a important advantage to compare with the old type trouble code reading tools.


  • With large LCD display: the trouble code description will be displayed directly on the screen, no need for search it in the user's manual
  • Each code will be continuously displayed until the [↑] or [↓] key is pressed. This is an important advantage to compare with the old type trouble code reading tools
  • With extension cable, comfortable for operation
  • With live data or data stream function
  • Support all four OBD2 protocols: OBD-I, OBD-II, EOBD, and JOBD
  • With professional mode
  • With large DTC database
  • Powered via diagnostic connector, no additional power is needed
  • Plug and play, ease to use
  • Turn off check engine light
  • High reliable and accurate

Main functions

  • Display DTC descriptions in text mode
  • Read DTC
  • Erase DTC
  • Data Stream
  • Freeze Frame Data
  • Oxygen Sensor Test
  • On Board Monitor
  • Request Control Test
  • ECU Information


  • Weight: 135g without package, 190g with package
  • Port: 16-pin OBD II socket
  • Display: LCD
  • Power: Directly supplied by diagnostic socket
  • Protocol: OBD-I, OBD-II, EOBD, and JOBD

Package Includes

  • One scanner with 16PIN Extension Cable
  • Operating Manual
  • Original package


Even if you don't repair the vehicle yourself, knowing the Diagnostic Trouble Code number before taking the vehicle in for repair the less likely you will be ripped off. Once the vehicle is repaired, the Diagnostic Trouble Code(s) can be erased and the Check Engine light extinguished using this scan tool.In area that requires a smog test, an illuminated Check Engine light fails the emission test, even if the repaired vehicle might otherwise pass inspection. This OBD II Scan Tool extinguishes 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 are the only way to obtain the information.

The Diagnostic Port 

Pin 2 - J1850 Bus+
Pin 4 - Chassis Ground
Pin 5 - Signal Ground
Pin 6 - CAN High (J-2284)
Pin 7 - ISO 9141-2 K Line
Pin 10 - J1850 Bus
Pin 14 - CAN Low (J-2284)
Pin 15 - ISO 9141-2 L Line
Pin 16 - Battery Power

Where can I find the OBD II diagnostic socket on my car?

Within OBD II guidelines the diagnostic port should be situated within reach of the driver’s side seating position. Common locations are just under the steering wheel shroud or to the side of the centre console. Check your vehicle’s handbook for specific information.


 What is OBD2?

OBD2 is the second generation of OBD. It is a set of standards issued by the SAE (Society of Automotive Engineers) and ISO (International Organization for Standardization). OBD2 was created to set a standard communication amongst all car manufacturers and to provide a fixed minimum requirement on emission data. OBD2 (also referred to as OBDII) uses a J1962 socket to allow interfacing with a diagnostic reader system – usually a PC based software/hardware or handheld device. OBD2 is the common term now used but vehicles in Europe will normally be labelled as EOBD compatible. And vehicles in Japan will be JOBD compatible. They work the same way as OBD2.
Now while OBD2 has created a set of standards across manufacturers, different manufacturers have still chosen to use their own communication protocols within that system. Put simply, while still using the standard hardware set by OBDII and its data requirements, the communication between the OBD system within the vehicle and the scanning device varies. There are five different communication protocols to date. These are:

  • J1850 PWM
  • J1850 VPW
  • ISO9141-2
  • ISO14230-4 (also known as Keyword Protocol 2000)
  • ISO15765-4/SAE J2480 (also known as CAN and becoming the set standard amongst more manufacturers). 

How do I know what protocol my vehicle uses?

One way is to look at your vehicle’s diagnostic port (the J1962 socket). If all the pins are not present you may be able to determine the protocol from the pins that are used. See the following diagram and list:

  • PWM - The connector must have pins 2, 4, 5, 10, and 16
  • VPW - The connector must have pins 2, 4, 5, and 16, but not 10.
  • ISO - The connector must have pins 4, 5, 7, and 16. Pin 15 may or may not be present.
  • CAN - The connector must have pins 4, 5, 6, 14, and 16.

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.  If your vehicle has this style connector, but doesn't have these pins populated, you probably have a pre-OBDII vehicle. To add some confusion, even having the connector with the contacts shown above is not a guarantee of OBD II compliance. This style connector has been seen on some pre-1996 vehicles which were not OBD II compliant.  

OBDII Manual   

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