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Data link connector, location/task/design/function - GF54.22-P-2100T

MODEL 211.0/2/6 

Fig 1: Locating Data Link Connector
G07253703Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Data link connector, location The data link connector (X11/4) is located in the driver-side footwell.  
Data link connector, task The 16-pin data link connector (X11/4) connects the STAR DIAGNOSIS and the K-lines of the control units in the vehicle.  
Data link connector, design   GF54.22-P-2100-02T 
Data link connector, function The data link connector (X11/4) bundles the K-lines of the control units in the vehicle into a fixed connector. The K-lines must be active for outputting faults so that the fault codes of the control units can be read out.