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Where is the diagnostic port located on the C4L?

1 Answers

Avery

07/30/25 9:18am

The OBD port of the Citroën C4L is located in front of the gear shift lever, near the USB port and cigarette lighter. You can find the OBD port by prying open the cover with your finger in the small hole. Below is some relevant information about OBD: 1. Introduction: OBD stands for On-Board Diagnostic, which is an in-vehicle automatic diagnostic system. This port can be connected to a diagnostic computer to read the car's fault codes, making it an important interface in the vehicle. 2. Function: The on-board diagnostic system continuously monitors the engine's operating conditions and the working status of the exhaust after-treatment system. If it detects any situation that might cause excessive emissions, it will immediately issue a warning. The OBD system stores fault information in memory, and this information can be read in the form of fault codes through standard diagnostic tools and interfaces. Based on the fault code prompts, maintenance personnel can quickly and accurately determine the nature and location of the fault.

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