Error in toyota and alfa romeo software

[Harrison Ohene]

When I try diagnostics on toyota yaris 2003 and alfa romeo GT 2003, no trouble code appears but, if I try with EOBD it pop up the code
Please any help?

 

[Samson]

Sometimes it takes time for the code to register in the system

 

[Harrison Ohene]

I don't understand please explain fine

 

[MiKeX]

It depends on the error ... sometimes on Fiat the u1600 interface generates a couple of errors ... when connecting

 

[Harrison Ohene]

Please Leo say something