Preparation For Test With Impulse Counter Scan Tool

NOTE: The DTC memory readout, DTC memory clearing as well as resetting and reactivating the engine control module can be performed with the impulse counter scan tool only on vehicles up to Diagnosis Version 46. On vehicles as of Diagnosis Version 49, it is possible only with the HHT.

Connect the impulse counter scan tool to data link connector (X11/4) according to connection diagram. See Fig 1-Fig 3 .

Fig 1: Identifying Special Tools

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 2: Connection Diagram - Impulse Counter Scan Tool/Hand-Held Tester (HHT) - Model 202

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 3: Connection Diagram - Hand Held Tester (HHT)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.