Technical F39 blows after the change. Radio, AC and inside light not working.

[fiatsanna]

I'm new here and have this unfortunate issue with Stilo year model 2004.
The radio, AC and inside light stopped suddenly working. There wasn't any changes or maintenance done in that are recently.
I noticed the F39 fuse was broken. I changed the new fuse, I saw inside light went on and immediately off, the fuse F39 was again blown.

What might cause this issue? Where I can try to locate the problem?

 

[Davren]

Hi, Welcome to the FF.

There must be a short circuit somewhere.

Fuse F39 protects the permanent power supply to the radio, interior lights, climate control ECU (if fitted), alarm siren and volumetric sensors (if fitted) and Bluetooth control unit (if fitted). You will need to disconnect them one at a time to check where the short circuit is. Easiest one to start with is the radio.
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[fiatsanna]

Thanks a lot, it would be nice to be here FF. I'll try to disconnect the radio tomorrow. I don't have special tools for removing the radio... let's see if it will come out with do-it-yourself tools.

 

[Davren]

I'll try to disconnect the radio tomorrow. I don't have special tools for removing the radio... let's see if it will come out with do-it-yourself tools.

If it's the original Fiat Visteon radio, you only need 4 pieces of stiff wire (4 drill bits perhaps?) to fit into the 4 holes on the front of the radio.
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[gsb104]

Thanks a lot, it would be nice to be here FF. I'll try to disconnect the radio tomorrow. I don't have special tools for removing the radio... let's see if it will come out with do-it-yourself tools.

i have found that 4 cocktail sticks work perfectly for removing the radio
push in till you feel a bit of resistance then push about 15mm more

 

[fiatsanna]

Thanks, your hints were good. I found enough stiff metal wire and the radio module is removed from the car now. I put the new F39 fuse in and it is not burning. Inside light and AC button works. It seems the radio was causing the short circuit. I feel the radio is smelling a bit burned. I don't have now enough small torx to open the radio from the metal cover. But when I can get it opened, is there something that typically will go broken in the radio? Radio's own fuse was ok.

 

[Davren]

when I can get it opened, is there something that typically will go broken in the radio? Radio's own fuse was ok.

I've only opened one Visteon radio before. There's not much inside it, if it smells burnt, then you will probably see where the problem is.
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[fiatsanna]

Thanks for the great help here. I found the replacement radio and now everything works.