Customizable OBD cable
What is OBD?
OBD is the abbreviation of On-Board Diagnostics. This system will monitor the engine's operating status at any time to see if the exhaust gas exceeds the standard. Once it exceeds the standard, it will immediately issue a warning. When a system fails, the fault (MIL) light or the Check Engine warning light will light up, and the powertrain control module (PCM) will store the fault information in the memory. 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 not only involves the automobile technology itself, but also is restricted by related conditions such as oil products, and also puts forward higher requirements for drivers. OBD is a system revolution for automobiles.
How OBD works:
OBD devices monitor multiple systems and components, including engines, catalytic converters, particulate filters, oxygen sensors, emission control systems, fuel systems, EGR, etc.
OBD is connected to the electronic control unit (ECU) through various emission-related component information. The ECU has the function of detecting and analyzing emission-related faults. When an emission fault occurs, the ECU records the fault information and related codes, and issues a warning through the fault light to inform the driver. The ECU ensures access to and processing of fault information through a standard data interface.
The introduction of OBD is closely related to four main aspects: usage environment, fuel characteristics, driving habits, and vehicle conditions. The shortcomings of any of these links will affect the expansion and application of OBD. The introduction of OBD technology requires the following related supporting conditions to be improved accordingly: fuel quality, vehicle maintenance skills, the quality of related parts, the improvement of driver level, the improvement of OBD technology itself, and the support of all aspects of society.
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