So before placing an order, it is necessary to check with the seller whether their product really has proper version 1.5 and build on appropriate hardware. The problem is that some sellers are still shipping 'fake' interfaces regardless of mentioning the name of good chip in item's description, especially sellers offering lowest price. It is also possible to buy a good ELM327 interface via Ebay or Aliexpress, search using keywords ELM327 PIC18F25K80 (PIC18F25K80 is name of the chip inside majority of 'good' adapters). Just one disadvantage - price of the interface will be higher comparing to online stores. Check it immediately with CVTz50 or CVTz50 DEMO and get moneyback if it unable to connect to transmission. Where to buyДЇastest and most reliable way of getting proper ELM327v1.5 is buying it at local store. Some 'bad' interfaces are still able to provide limited connectivity to CVT in compatibility mode (compatibility mode can be enabled by choosing option 'ELM327 v2.15 workaroud' in CVTz50 menu), however advanced functionality will not be working (like clearing 'CVTF deterioration date', reading engine brake level, list of previously cleared DTCs, some monitoring parameters). This means that many 'bad v2.1' interfaces are able to connect to engine howerer are missing features required for establishing a connection with transmission and other control modules. CVT diagnostic protocol is more complex than standard engine diagnostics so it requires more functionality from ELM327. In order to communicate with majority of CVT transmissions, CVTz50 requires a good ELM327 interface ('good version 1.4 or 1.5').

Elm327 mini app