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Why Can't the OBD Be Connected During Vehicle Inspection?

1 Answers

ArabellaLee

07/29/25 11:04pm

At the vehicle management office, if the OBD cannot read data during inspection, it might be due to instrument malfunction, incomplete data, or compatibility issues with the vehicle. OBD inspection is a newly added item in recent years, primarily checking if the vehicle meets standards, including exhaust emissions. Here are the relevant details: 1. Reasons for OBD reading failure: The OBD reads information such as the vehicle's engine, emission after-treatment devices, and related fault codes. Since OBD inspection is a new addition, data reading failures are common. 2. Solutions: If the issue is due to instrument malfunction or the OBD diagnostic tool not supporting the communication protocol used by the vehicle's ECU system, try replacing the instrument for inspection. If the vehicle management office's system data is incomplete, you may need to wait for a data upgrade before reattempting the inspection. 3. OBD inspection results: The OBD inspection results directly affect whether the vehicle can be registered and pass the annual inspection. If the OBD data is abnormal, the vehicle will fail the annual inspection. Driving a vehicle without passing the annual inspection violates the "Road Traffic Safety Law," and traffic police can impose a 200-yuan fine and deduct 3 points from the driver's license, along with possible vehicle impoundment. If a vehicle fails to undergo annual inspection for three consecutive years, it will be forcibly scrapped.

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