2021 — Multiecuscan Elm327 Port Settings
: Right-click the Windows Start button and select Device Manager . Find your device under Ports (COM & LPT) ; it usually appears as "USB Serial Port (COMX)".
: You’ll see a list of "OK" responses ending with a message that the interface is compatible with ELM 327 version 1.4.
: While any can work, some users prefer setting it to COM1 for simplicity.
: For modern Fiats (like the 500 or Abarth), standard ELM327 readers cannot reach all systems (like Airbags or Body Computers) without colored adapter leads—specifically the Yellow Adapter .
| Vehicle Model (2021) | Protocol | ELM327 Setting in MES | |----------------------|----------|------------------------| | Fiat 500 / Panda | CAN (ISO 15765-4, 500kbps) | Standard CAN | | Jeep Wrangler JL / Grand Cherokee WL | CAN FD + SW-CAN | CAN FD + SW-CAN manually | | Alfa Romeo Giulia/Stelvio | CAN FD (dual-wire) | CAN FD (with OBDLink) | | Maserati Ghibli / Levante | CAN FD + UDS | CAN FD, 1M baud | | Fiat Ducato (2021) | CAN 500k + K-line | Standard CAN |
: Right-click the Windows Start button and select Device Manager . Find your device under Ports (COM & LPT) ; it usually appears as "USB Serial Port (COMX)".
: You’ll see a list of "OK" responses ending with a message that the interface is compatible with ELM 327 version 1.4.
: While any can work, some users prefer setting it to COM1 for simplicity.
: For modern Fiats (like the 500 or Abarth), standard ELM327 readers cannot reach all systems (like Airbags or Body Computers) without colored adapter leads—specifically the Yellow Adapter .
| Vehicle Model (2021) | Protocol | ELM327 Setting in MES | |----------------------|----------|------------------------| | Fiat 500 / Panda | CAN (ISO 15765-4, 500kbps) | Standard CAN | | Jeep Wrangler JL / Grand Cherokee WL | CAN FD + SW-CAN | CAN FD + SW-CAN manually | | Alfa Romeo Giulia/Stelvio | CAN FD (dual-wire) | CAN FD (with OBDLink) | | Maserati Ghibli / Levante | CAN FD + UDS | CAN FD, 1M baud | | Fiat Ducato (2021) | CAN 500k + K-line | Standard CAN |
