Specification :

GS500 Code Reader (New)
Genuine AutelTech MaxScan GS500 this is an extended GS400 with the ability to display live engine data
The MaxScan GS500 CAN OBD2 / EOBD auto scanner supports all OBD2 protocols, including the newly released Controller Area Network(CAN) protocol, allowing users to keep up with the latest development in automotive diagnostic scanning

Protocols:
Works on any Universal OBD2 or EOBD Vehicle.
Supports ISO, VPW and PWM bus systems as well as can bus systems
U.S. Models - European - Japanese - Asian - German - Korean:
Suitable for almost all US cars after 1996 - European cars after 2000.
CAN-BUS VPW PWM KWP2000 ISO9141 EKWP2000
Product Features:
Works with all 1996 and later OBDII compliant Domestic, European and Asian vehicles
Reads & clears generic OBD II trouble codes (including pending codes)
Reads & clears selected GM/Ford/Chrysler/Toyota OBD II manufacturer-specific codes
Turns off check engine light (MIL)
Views freeze frame data
Displays monitor and I/M readiness status (emissions)
Reads live PCM datastream
Displays live O2 sensor test data
Performs modules present test
Retrieves vehicle information (VIN, CIN and CVN)
Supports CAN (Controller Area Network) and all other current OBD-II protocols
Built-in OBD-II DTC lookup library
Large easy-to-read LCD screen displays DTC definitions
Extremely easy to use and highly reliable
Software upgradeable via internet

Vehicle Coverage
European Vehicles
If your petrol passenger vehicle was manufactured for sale in Europe, with the model year of 2001 or newer (and in some cases 2000), you have the EOBD / OBDII interface. EOBD diesel vehicles start with the 2004 model years. Some Asian models such as Subaru were OBD-II before 2000.
US Vehicles
Generally these went OBD-II from around 1996. For example:
GM/Vauxhall/Opel/Holden '96 - Current Year (OBD-II)
Ford '96 - Current Year (OBD-II)
Chrysler '96 - Current Year (OBD-II)
Toyota '96 - Current Year (OBD-II)
Honda '96 - Current Year (OBD-II)
NISSAN '96 - Current Year (OBD-II)
SUBARU Impreza

All other Asian and European '96 - Current Year (OBD-II) i.e. Porsche, Opel, BMW, Mercedes, Volvo, Renault, Peugeot, Citroen, Daewoo, Alfa Romeo, Hyudai, Daihatsu, Lancia, Mazda, Mitsubishi, Kia, Saab, Subaru, Smart etc