Where is the OBD port located on the Peugeot 408?
2 Answers
The OBD port of the Peugeot 408 is located under the cover beneath the buttons on the left front side of the driver's seat. The green connector inside the cover is the OBD port. Here is some information about the OBD port: 1. OBD stands for On-Board Diagnostics, which translates to a detection system extended for automotive fault diagnosis. 2. Principle: The OBD system continuously monitors the engine's operating conditions to check if the vehicle's exhaust exceeds the standard. If it does, a warning is immediately issued. When a system fault occurs, the Malfunction Indicator Lamp (MIL) or Check Engine warning light will illuminate, and the Powertrain Control Module (PCM) will store the fault information in memory. The fault code can be read from the PCM through a specific procedure.
I've worked in an auto repair shop for many years and have handled numerous Peugeot models, including the 408. This so-called computer port is actually the vehicle's diagnostic interface, also known as the OBD-II port. On most model years of the Peugeot 408, it's typically located under the driver's seat, near the left side of the dashboard or below the steering wheel. If you look carefully, you'll spot a rectangular connector tucked away there. Why is it designed in that location? Primarily for easy access by technicians to connect scanning tools for reading fault codes, such as engine or electrical issues, while also being positioned to avoid accidental contact, ensuring driving safety. If you're searching for it yourself, crouch down and feel around near your left knee—you should find it. If you can't locate it, don't force it; check if dust might be blocking the port. Remember, there might be slight variations in different model years or versions of the 408—for example, older models might have it slightly offset near the armrest—but the main location is generally consistent. During routine maintenance, take a moment to clean it to prevent connectivity issues.
