2013 FIAT 500e
4-year 500e owner, brand new to a $17 Konnwei KW902 scanner & free AlfaOBD app. So far I've only used them to check & monitor HV batt health, & they seem to work fine, but there are quite a few steps to get the app started each time:
- Car charging, or "on".
- Plug OBD, power it up, start app before of after that, & hit its Bluetooth icon.
- 1st time only: hit "Fiat", "500E", & "BATTERY MANAGEMENT"
- "SELECT CONTROL UNIT"
- "Battery Pack Control Module Var.2"
- "Duracell" icon
- "READ SYSTEM STATUS"
- "OK" (when it shows "OBD interface failure")
- The car must be either charging or with the key "on", but there's no need to "start" it.
- Plug in the scanner & press the power button. I left mine plugged in once when driving, & everything seemed fine, so I just left it there, since it seems okay to just leave it in, at least with its power off, as long as nobody kicks it getting in or out.
- I initially didn't add it to my phone's Bluetooth paired devices list, but it took at least 3 more steps each time*.
- You can start the app before or after turning on the device.
- You need to hit the Bluetooth symbol each time, to connect, & wait for it to show "connected" before proceeding. *I initially didn't pair the device to my phone, so each time I had to hit "OTHER DEVICES", scroll down through any "null" devices, & click "KONNWEI". If it ever asks for a password it's 1234.
- Once you select "Fiat", "500E", & "BATTERY MANAGEMENT" (or presumably any other selection there) it remembers those for next time, but you have to "SELECT CONTROL UNIT" each time (in my case, "Battery Pack Control Module Var.2", as recommended by Ironhydroxide). After selecting V.2 you have to click "CONNECT", then the little "Duracell" icon at the bottom, then "READ SYSTEM STATUS", & when it shows "OBD interface failure" I just hit "OK" & it still seems to work fine since it shows a LOT of data, some of which has changed appropriately with subsequent uses.