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Messed with radio - now no power to radio, PL

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Old 01-27-2009
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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?
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Old 01-27-2009
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Re: Messed with radio - now no power to radio, PL

"Back Up" fuse in under hood box is open.
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Old 01-27-2009
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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?
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Old 01-27-2009
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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!
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Old 01-27-2009
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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 ..
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Old 01-28-2009
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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.
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Old 01-01-2018
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Re: Messed with radio - now no power to radio, PL

Originally Posted by CraigW View Post
"Back Up" fuse in under hood box is open.
do you know which fuse is the back up fuse on an 03 civic
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Old 01-01-2018
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Re: Messed with radio - now no power to radio, PL

Originally Posted by skypie17 View Post
do you know which fuse is the back up fuse on an 03 civic
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Old 06-21-2018
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Re: Messed with radio - now no power to radio, PL

Almost same situation with my 2012 si coupe. Any suggestions?
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Old 06-21-2018
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Re: Messed with radio - now no power to radio, PL

Originally Posted by brandon816 View Post
Almost same situation with my 2012 si coupe. Any suggestions?
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.
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Re: Messed with radio - now no power to radio, PL

Originally Posted by ezone View Post
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.
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
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Re: Messed with radio - now no power to radio, PL

Originally Posted by ezone View Post
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.
UPDATE: it was the backup fuse #29 10A, thanks brother.
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