But 'good' clones may have other problems (for example, USB adapters cannot work faster than on 38400 bps, CAN bus errors etc).
We recommend to obtain either original white-label adapters listed above (Scantool OBDLink, ELS27), or look for ELM327 marked as 'Ford Mazda FORScan' etc compatible - these are usually 'good' clones equipped with HS/MS CAN switch. The problem is that service protocols are more complex than regular OBDII ones and this is why it is physically impossible to make FORScan work using these devices. Other software that uses standard OBDII protocol usually work with these adapters, so people usually don't understand the problem. FORScan uses service level protocols and requires adapters that are fully compatible with original ELM327.
'Bad' clones are not fully compatible with original ELM327 and will not work with FORScan. In past few years 80% of them are 'bad' clones, and unfortunately this ratio grows. Important note: almost all of adapters sold under 'ELM327' label are 'clones' (use not original ELM327 chip).
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