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OBDII Port not connecting after install

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I have a working Fortin Evo-One installed on a 2018 Subaru Crosstrek. The unit has worked flawlessly for over a week. Today I had a check engine light appear and I cannot connect to the ECU via my OBD tool. I tried the tool on a different vehicle and it works fine.

Does something need to be done in order for the OBD port to work correctly?


asked Jan 15 in Subaru by Nikolas Croteau (200 points)

1 Answer

+1 vote
Best answer
check fuses:

27 - 15A (ecm fuse)

19 - 10A (obd and a bunch of other things fuse)


Alhtought the remote start is not connected on the CAN of the OBD, disconnect 5 pin white connector on EVO to see if that changes anything.
answered Jan 15 by Robb (262,670 points)
selected Jan 16 by Nikolas Croteau
Thanks for your reply. I disconnected the white 5 pin connector and was able to connect to the ecu through the obd port. The code thrown was a network issue, loss of communication with the instrument cluster. Everything appeared to be fine on the evo-one, so we did some readings at the battery terminal and ended up just cleaning the terminals.

After reconnecting everything I was able to use the obd port with the evo-one still connected. Now we will see if it happens again.

Thanks again.