Anyone have access to the horn circuit diagram for a 2010 Civic LX. If you do--could you post it here?

My Daughter's horn has stopped working. Her boyfriend checked and replaced the fuse. Still not working. Is there a relay on this circuit for the horn? If so -where is the relay located and what number relay is involved? Is there anything else that could cause this trouble ?

The panic button doesn't blow the horn.But the lights will flash.

 

bad horns bad relay could be a number of things that could cause it to fail. Google search will find your circuit diagram i googled that for you. ive seen where bees or mud get into a horn and it will fail. the horn if removed and powered directly is an easy test to see if they are bad.

 

Thank you. I did try to Google the ckt--didn't find that model year nor horn ckt. And the fact that the remote will not sound the horn seems to suggest that the clock spring/cable reel isn't the source of the open ckt. No fuse is involved? What is the MICU--Honda name for the fuse/relay panel?

 

Thank you. I did try to Google the ckt--didn't find that model year nor horn ckt. And the fact that the remote will not sound the horn seems to suggest that the clock spring/cable reel isn't the source of the open ckt. No fuse is involved? What is the MICU--Honda name for the fuse/relay panel?

I saw this other old thread: https://www.civicforums.com/forums/1...n-problem.html If my problem is the horn relay--it isn't removable or separate from the MICU or fuse/relay box? I hope that the MICU unplugs from the relay/fuse box.

 

not sure there i had an 08 lx couple years ago. 89k too 180k before i got rid of it and i only ever had transmission problems and a/c problems.

 

the thread you linked sounds like a pretty appropriate description similar to what gm has been doing with an ecm tcm and bcm. instead of a bunch of relays its a single circuit board that alot of the main vehicle functions run through to consolidate space. saves space fine but makes it impossible to fix things cheaper.

 

PerGoogle:"The MICU that is combined with the under-dash fuse/relay box is the one of the B-CAN network components. The MICU controls many systems related to the body controller area and security system."