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I have a 2020 Civic and I decided to buy a battery maintainer, a NOCO Genius 5. I measured the current draw after the Civic was parked for several hours and it was 210 mA. It appears excessive to me, as such, a battery maintainer seemed to be a prudent investment.

I currently have it clamped to the battery terminals however, it is cumbersome to raise/lower the hood, clamp/unclamp the connectors every time the Civic is used. I noted that NOCO has an X-Connect OBDII Connector, part number GC012. One end connects to the OBD connector and the other end connects to the Genius 5. This appears to be a much more convenient connection method than the clamp on connectors. There is the following warning on the web site for this connector, “Do not use if the vehicle’s OBDII fuse is below 10A and/or shares a fuse with the ECU or other sensitive equipment. “

I checked the owner’s manual and could not find a fuse that supplies the OBD connector. Can anyone help? I would like to know where it is located, the rating, and what other components are connected to the fuse. An electrical schematic would be appreciated.