Monthly Archives: February 2014

Introduction Of OBDII

According to Wikipedia,On-board diagnostics(OBD) is an?automotive?term referring to a vehicle’s self-diagnostic and reporting capability. OBD systems give the vehicle owner or repair technician access to the status of the various vehicle sub-systems. The amount of diagnostic information available via OBD has varied widely since its introduction in the early 1980s’ versions of on-board vehicle computers. Early versions of OBD would simply illuminate a malfunction indicator light or “idiot light” if a problem was detected but would not provide any information as to the nature of the problem. Modern OBD implementations use a standardized digital communications port to provide real-time data in addition to a standardized series of?diagnostic trouble codes, or DTCs, which allow one to rapidly identify and remedy malfunctions within the vehicle.


OBD systems are exist in majority cars and light trucks on the road nowadays. During the 70’s and early 1980’s, manufacturers started using electronic means to control engine functions and diagnose engine problems. This was primarily to meet EPA emission standards. Through the years,OBD systems have become more sophisticated.

OBD-II, a new standard introduced in the mid 90’s, provides almost complete engine control and also monitors parts of the chassis, body and accessory devices, as well as the diagnostic control network of the car.


OBD-II is an improvement over OBD-I in both capability and standardization. The OBD-II standard specifies the type of diagnostic connector and its pinout, the electrical signalling protocols available, and the messaging format. It also provides a candidate list of vehicle parameters to monitor along with how to encode the data for each. There is a pin in the connector that provides power for the scan tool from the vehicle battery, which eliminates the need to connect a scan tool to a power source separately. However, some technicians might still connect the scan tool to an auxiliary power source to protect data in the unusual event that a vehicle experiences a loss of electrical power due to a malfunction. Finally, the OBD-II standard provides an extensible list of DTCs. As a result of this standardization, a single device can query the on-board computer(s) in any vehicle. This OBD-II came in two models OBD-IIA and OBD-IIB. OBD-II standardization was prompted by emissions requirements, and though only emission-related codes and data are required to be transmitted through it, most manufacturers have made the OBD-II?Data Link Connector?the only one in the vehicle through which all systems are diagnosed and programmed. OBD-II Diagnostic Trouble Codes are 4-digit, preceded by a letter: P for engine and transmission (powertrain), B for body, C for chassis, and U for network.

And we have several kinds of OBDII scanner,if you are intrested in that,you can contact us .


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Exclusive Agency GDS VCI Diagnostic Tool

GDS VCI Diagnostic Tool is an advanced service system that provides comprehensive coverage for all Hyundai vehicles including all Hybrid cars. The Global Diagnostic System or “GDS”, for short,offers several new features,GDS provides complete diagnostics, analysis and reprogramming capabilities as well as a huge library of technical, service and repair information. And now buy can get NEW kia GDS software free.

Setting and running “Fault Code Searching” function in the “Vehicle Selection” allows users to continue workflow on the primary system (denoted by a check mark on

the vehicle selection process) while the GDS searches in the background for DTCs in all selected systems. The progress status for the Fault Code Searching will be displayed on the top of the “Fault Code Searching” icon,which is located on the lower section of the GDS screen. First, establish communication with the vehicle. You will need to plug the communication VCI (shown in Figure 2) into the communication port in the vehicle.To turn on the VCI module, depress the main power switch after connecting the main DLC cable from the vehicle to the VCI module

Exclusive Agency GDS VCI

The VCI will run through a test sequence and when it is ready, green lights will be displayed for “PC Comm” and “Veh. Comm” on the unit. When using a USB connection, the“PC Comm” light will be red. If communication between the GDS and the vehicle is interrupted, hold down the power button for five seconds. After you have selected the vehicle information or VIN enter “GO” on the touch screen. This will alert the GDS which vehicle it will be diagnosing. You can also select symptoms from a drop down box or add comments for later review. Select the Diagnosis mode from the welcome screen.In this mode you can select the various components requiring diagnosis to gather Current Data or Flight Recording. The GDS will return values in real time for Current Data. In the Current Data mode, you can record and display graphs for up to six inputs simultaneously via the Basic Inspection function. The data can then be analyzed. Just click the box next to the appropriate sensors. The GDS can return graphs, component location and descriptions,component specifications, circuit information In the Flight Record mode, data from the previous ten minutes is recorded when the trigger is activated.

GDS VCI Diagnostic Tool for KIA Hyundai Features:

1. Completely Integrated Diagnostic System with User Specific information & settings

2. Complete Technical Service Information

3. Comprehensive & Customized Diagnostic Solution

4. Guided Troubleshooting Procedures

5. Mobile Data-recording Function

6. Real-time Software Management

For more diagnostic tool,please visit