Preparation For Test (Section 22)

Turn ignition OFF. Disconnect base module (N16/1).
Connect socket box with contact module 1 and contact box according to connection diagram. See Fig 1 and Fig 2 .

Fig 1: Identifying Special Tools

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 2: Connecting Socket Box To Control Module(Models 124, 129, 140.0 & 140.1)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.