What can be connected to the OBD interface?

1 Answers
Jessie
07/29/25 3:55pm
The OBD interface itself cannot be externally connected, and external products may affect the car itself through the OBD interface due to their own malfunctions or issues. OBD is a detection system extended for automotive fault diagnosis. The location of the OBD interface can be in two situations: one is next to the blower above the accelerator pedal, and the other is under the dashboard on the right side of the passenger seat. The position varies by car model and is very hidden, requiring a flashlight to locate. Below is an introduction to the functions of the car's OBD interface: 1. Display of vehicle computer data: The OBD interface can provide various operational data of the vehicle. 2. Reading fault codes: The OBD interface can be used to read fault codes. 3. Changing codes to achieve more functions: It can enable many different 'hidden' functions to achieve 'additional configurations'. 4. Reading and flashing ECU-TCU programs: It allows manufacturers to update the ECU control program at any time.
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