Messed with radio - now no power to radio, PL
 

I was working on my car and had to get behind the factory radio the other day. I put everything back together and expected to enter the security codein the radio and everything woudl go back to normal. This wasn't so.

When I turned the key I didn't see "CODE" on the radio. In fact the radio was totally unresponsive, like it was getting no power. I took everything apart and the connectors were installed correctly and tight. I couldn't get the radio to power up.

I also noticed that my power door locks would only work when the ignition is on. I usually hold the driver's door handle and use the PL switch to lock the door. It woudln't work but did work when I put the key to on.


Anyone seen anything like this? Where should I start? Is there another security system that is affecting the radio and PL?

Re: Messed with radio - now no power to radio, PL
 

"Back Up" fuse in under hood box is open.

Re: Messed with radio - now no power to radio, PL
 

Where is this fuse? What number is it?

I didn't short any wires. What could have caused the fuse to blow?

Re: Messed with radio - now no power to radio, PL
 

I checked my under hood fuse box and you nailed it! The radio works great now. Thanks!

Re: Messed with radio - now no power to radio, PL
 

^^ you should rep him :) click the scale looking thing under his name and leave that man some rep! dont forget to leave your name so he can rep you back too ..

Re: Messed with radio - now no power to radio, PL
 

Thanks for the rep guys !!

I just wish more people would post up what they found wrong, So many threads are left hanging with no final answer.

Re: Messed with radio - now no power to radio, PL
 

do you know which fuse is the back up fuse on an 03 civic

Re: Messed with radio - now no power to radio, PL
 

https://ww2-secure.justanswer.com/up...e_relay_ID.gif

https://cimg2.ibsrv.net/gimg/www.civ...5fcbcf500b.gif

Re: Messed with radio - now no power to radio, PL
 

Almost same situation with my 2012 si coupe. Any suggestions?

Re: Messed with radio - now no power to radio, PL
 

What did you do to it?
Blown back up fuse? Engine compartment fuse box. One of the two marked with a bold outline on the diagram in the lid.

Re: Messed with radio - now no power to radio, PL
 

I was messing with my radio (aftermarket) and I'm pretty sure I shorted something since now I'm not getting 12V into the radio and my key wont work and dome lights wont turn on while engines off. I will definitely look into that fuse though

Re: Messed with radio - now no power to radio, PL
 

UPDATE: it was the backup fuse #29 10A, thanks brother.

Re: Messed with radio - now no power to radio, PL
 

Thank you so much!! Same exact problem, and same exact solution!! FUSE #29 10A!! You guys are the best!!

Re: Messed with radio - now no power to radio, PL
 

I had same/similar issue on 02 Civic... radio, door chime, light chime & door locks were not working. The Back Up fuse(10A) under hood was the culprit.