Test Preparation For DTC Readout

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1996 Mercedes-Benz SL320, 1996 Mercedes-Benz S320, 1995 Mercedes-Benz SL320, 1995 Mercedes-Benz S320, and 1994 Mercedes-Benz SL320. However, it is still accessible from the selected car via links, so may be relevant.

Connect impulse counter scan tool and adapter or HHT to data link connector (X11/4). See Fig 1.
Connect Yellow wire from impulse counter scan tool as follows:
1. Socket 8
  
  Base Module - BM (N16/1)
2. Socket 6
  
  ABS or ASR control module (N30 or N30/1)
3. Socket 12
  
  SPS control module (N49/1)
4. Socket 11
  
  ADS control module (N51)
5. Socket 4
  
  HFM-SFI control module (N3/4)
Turn ignition ON.
Read DTC memory for BM, ABS, ABS/ASR, SPS, ADS, HFM-SFI control modules.

Fig 1: Identifying Special Tools

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.