Hi have Snap-On MT2500 scanner with MB1 cable and S-20 key, 2003 Mercedes cartridge connecting to 38 pin under hood connector on 96 C280.

Having great problems connecting to HFM module (no communication error). Can easily connect to the diagnostic module (DM).

The DM is only used on US cars. Is this the only module that the MT2500 will properly be able to talk with on this US car.

Any tricks or techniques that I am missing getting the MT2500 to talk to HFM ecu.?

Any help is most welcome and appreciated.

Thanks

__________________
Martineau Gauda
mgauda@sprintmail.com

96 C280 Mercedes
82 Rolls Royce Silver Spur