My interior lights, radio, and power locks are not working (no power). Everything else works fine. I've checked ALL of the fuses. All are good. I suspect a bad relay. Does anyone have any information about relay locations? I would like to avoid testing every one of them (like I did with the fuses). Thanks

 

Drivers side multi-plex probably has an internal short. Not so common on fits, but have seen it on other Hondas.

 

A harness might have a broken wire; if you have a multimeter, check your wires. If you have the Sport model or the Base with optional Fog Lights, the harness will have a socket for a relay to the fog lamps. If you have Fog Lamps, that harness could be the culprit, for it taps off the door locks, mirrors and other accessories' connections on the fuse block. Did you find the culprit and fix it? I noticed it's been a few months since the post, yet there's no update on it.