How to resolve the OBD light on the car display screen?

2 Answers
StevenFitz
07/28/25 10:09pm
You can use a diagnostic tool to read the fault code and clear it accordingly. Here is some information about OBD: 1. The full English name of OBD is On-Board Diagnostics, which translates to the onboard automatic diagnostic system in Chinese. 2. The primary purpose of the automatic diagnostic system is to monitor the engine's operating condition and check whether the vehicle's exhaust emissions exceed the standard. Once the vehicle's exhaust emissions exceed the standard, the OBD warning light will immediately illuminate. When the OBD light on the vehicle turns on, it indicates an issue with the vehicle's emissions, requiring immediate inspection.
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MacAurora
08/12/25 2:42am
Oh, last time the OBD light in my car came on, it was right after refueling when I didn’t tighten the fuel cap properly. After tightening it, the light went off. The OBD light mainly indicates minor issues detected by the system, like sensor dust buildup or loose connections. You can start by checking if the fuel cap is tight and if the battery connections are secure, as loose connections can trigger false alarms. If that doesn’t work, a simple solution is to buy an inexpensive OBD scanner, plug it into the port, and read the trouble codes—just install an app on your phone to check the specific issue. Common problems like oxygen sensor or throttle issues can often be fixed by cleaning or replacing parts for a few hundred bucks. But if the light stays on, don’t ignore it—it can affect emissions and fuel efficiency. Get to a repair shop for a thorough check to avoid bigger problems down the road.
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