Where is the Citroen OBD port located?

1 Answers
SanPenelope
07/29/25 9:12pm
Citroen's OBD interface is located in the small compartment in front of the gear lever or under the small cover below the steering wheel near the left knee. Open it to see the plug. OBD stands for On-Board Diagnostics, which monitors the working conditions of the engine's electronic control system and other functional modules of the vehicle in real time. Here is some relevant information: 1. This system can monitor the working conditions of the engine's electronic control system and other functional modules of the vehicle in real time during operation. If any abnormal conditions are found, it will determine the specific fault according to a specific algorithm and store it in the system's memory in the form of diagnostic trouble codes. The useful information obtained after system self-diagnosis can help with vehicle maintenance and repair, and maintenance personnel can read it using the vehicle's original factory-specific instrument. 2. When a system fault occurs, the malfunction indicator lamp or check engine warning light will illuminate, and the OBD system will store the fault information in the memory. Relevant information can be read in the form of fault codes through standard diagnostic instruments and diagnostic interfaces. Based on the fault code prompts, maintenance personnel can quickly and accurately determine the nature and location of the fault. 3. OBD connects various emission-related component information to the Electronic Control Unit (ECU), which has the function of detecting and analyzing emission-related faults. When an emission fault occurs, the ECU records the fault information and related codes and issues a warning through the malfunction indicator lamp to inform the driver.
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