There are many types of GPS locators commonly used on the market, and the prices are different. The wiring types are also different. They are roughly divided into three types: wired, portable and OBD interface type. However, many people are interested in OBD interface type vehicles. GPS trackers are relatively unfamiliar. Many old drivers and friends can’t distinguish the difference between OBD interface type car GPS trackers and OBD. Let's give you a detailed analysis of the differences and features.
First explain "OBD", the full name of OBD: On Board Diagnostics, translated into Chinese is: is a detection system extended for car fault diagnosis. This system will monitor whether the car's exhaust exceeds the limit at any time according to the engine's operating condition, and will immediately issue a warning if it exceeds the limit. When the system fails, the fault light or check engine warning light is on, and the powertrain control module stores the fault information in the memory, and the fault code can be read from the PCM through a certain program. According to the prompt of the fault code, the maintenance personnel can quickly and accurately determine the nature and location of the fault.
OBD diagnostic system
OBD not only involves the automotive technology itself, but is also restricted by related conditions such as oil products, and also puts forward higher requirements for drivers. OBD is a systemic revolution for automobiles. The OBD device monitors multiple systems and components, including engines, catalytic converters, particulate traps, oxygen sensors, emission control systems, fuel systems, EGR, etc. OBD is connected to the electronic control unit through various emission-related component information. The electronic control unit has the function of detecting and analyzing emission-related faults. When an emission failure occurs, the electronic control unit records the failure information and related codes, and issues a warning through the failure lamp to inform the driver. The electronic control unit guarantees the access and processing of the fault information through the standard data interface.
Secondly, the OBD system has an external data output interface, commonly known as the OBD interface, which is generally located below the vehicle steering wheel and above the left foot. Secondly, the line terminal of this interface can output 12V or 24V current, so many other on-board equipment You can get electricity here, but you don’t need to read vehicle data like OBD devices. Today’s OBD interface car GPS locator is this kind of equipment. If customers purchase OBD interface car GPS locators, they must Confirm with the manufacturer whether there is an OBD diagnosis function. The functions of the two devices can be combined, but the price of the product is different.
OBD interface
Finally, OBD interface type car GPS locator, not all vehicle interfaces can be used, after all, the order of OBD line terminals of some vehicles is inconsistent, so it may not get electricity, and some new energy vehicles may not exist. The engine (fuel engine is replaced by a motor), if it is connected to an OBD interface-type car GPS locator, the car may be locked or cannot be put into gear. Therefore, when purchasing in bulk, more testing procedures are required.