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What does China IV OBD mean?

1 Answers

DeZachary

07/30/25 12:29am

China IV OBD is translated as On-Board Diagnostics in English. Below is expanded information about the OBD system: 1. This system is primarily used to monitor the operating status of the engine and the exhaust treatment system in real time. If the system detects abnormal data, it indicates that the system is not functioning properly. The OBD will store the fault code, illuminate the malfunction indicator light, and repair personnel can read the fault code using diagnostic equipment to analyze the cause of the fault. 2. Currently, most vehicles on the market are equipped with the OBD-II system, which features a standardized 16PIN diagnostic socket, making it universal. It also supports data transmission and analysis functions, enabling auto repair shops to use a single computer to diagnose multiple vehicle brands. Not only can diagnostic computers read vehicle operating data through the OBD interface, but third parties have also developed numerous OBD-compatible products. From the earliest OBD diagnostic cables used to connect to computers for data reading to current OBD locators, OBD tire pressure monitors, OBD heads-up displays, and OBD Bluetooth diagnostic tools, these modules simply need to be plugged into the vehicle's OBD interface to expand various functions. It's very simple—just plug it in without any wiring modifications. 3. Misusing the OBD interface carries certain risks. Some OBD hardware may pose privacy leakage risks, as the OBD interface can enable remote unlocking and diagnostics.

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