Sorry for asking but what is MES ???

Tried whit another laptop and could access Abs and airbag. When i Scan i find the engine iso number but i can't get access to engine ECU. Check Cable and usb port. Could it be something in the ECU to the engine that dosen't work ???

Dont work connection failed

Hi i bought the VAG Usb obd2 and the software just gives me access to the Abs and airbag and i need some help to install the cable. Can't connect to the ECU. Fiat marea weekend 2002 This is the item i bought http://www.ebay.com/itm/FIAT-ALFA-VAG-USB-OBD2-DIAGNOSTIC-LEAD-SWITCH-ECU-AIRBAG-ABS-Multiec...