Does the BMW 320 OBD interface have a fuse?
2 Answers
The BMW 320 OBD interface has a fuse, and the OBD interface fuse is generally located in the fuse box. Location of the BMW 320 OBD interface fuse: The BMW 320 fuse box is located inside the glove compartment on the passenger side. After opening the glove compartment, remove the inner trim panel to see the fuse box. There is also another fuse box on the side of the trunk. Precautions for installing fuses: Installing fuses with different parameters can pose significant risks such as explosions and fires. Installing fuses that exceed the rated current can easily overload and damage components. Do not attempt to repair a damaged fuse, and never use metal strips, paper clips, or similar metal objects as substitutes for fuses.
The OBD interface on the BMW 320 does indeed have a fuse-protected circuit, as I personally experienced a similar issue. Last year, my car's OBD port suddenly lost power, and the scanner couldn't connect. After inspection, I found that the fuse had blown. The fuse is usually located in the car's fuse box, either above the driver's footwell or near the glove compartment. The specific number can be found in the vehicle manual—common fuses for the BMW 320 are F30 or F31. It's recommended to turn off the engine first, use small pliers to pull out the fuse and check if it's broken, then replace it with a fuse of the same amperage. If the fuse blows frequently, it might be due to a short circuit or equipment issue, requiring professional inspection. A faulty OBD interface can affect diagnostics and annual inspections, so timely handling is necessary to avoid potential hazards.
