Need Help On Funcargo (yaris Verso)

[silvi]

I just puchased a OBD 2 scantool u381 from e-bay uk. Although the scantool is iso 9141-2 compatable and even my Toyota Funcargo(japan import) (yaris verso) year 2003, according to the pins on DLC3 having pin 4,7,9,11,13,15and 16 the scan tool would not establish comunication with ECU. I tried tool on toyota aygo (made in europe) and worked perfectly tried also on another funcargo but did not work. any ideas what type of compatabilty the tool must have?