Only for Peugeot and Citroen vehicles. This application will not work with bad ELM327 clone adapters which doesn't support extended protocol commands. Supported ECUs: EDC15C2, EDC17C10, EDC17C10_BR2, DCM3. 5, dcm3. 5_br2, hdi_sid803, edc16cp39, dcm3. 4, hdi_sid807_br2, med17. 4. 2, mm6lpb, mev17. 4_euro4, dcm3. 4p, hdi_sid807, mev17. 4_euro5, mev17.