211 589 03 21 01 15-pin adapter cable - WS54.00-P-0072-01B

FG54/Set B 

MODEL 199, 211, 219, 230 

Use: 

15-pin adapter cable for connecting the SBC module to the vehicle wiring harness.

Fig 1: Identifying 15-Pin Adapter Cable (211 589 03 21 01)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.