348 Electrical Question - Ferrari Life
 
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post #1 of 4 Old 05-22-2006, 02:51 PM Thread Starter
 
Join Date: Dec 2005
Location: St. Petersburg, FL
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348 Electrical Question

Hello All,

While installing a new in-dash CD player for my 348tb, I stupidly managed to short the ground & the 'always on' positive power lead. I heard a faint 'pop' when it happened, but that may have (hopefully) been the actual short and not something else dying. I finished the installation, and not too surprisingly there is no power to the radio. I checked the fuses up front (under the hood) - driver's side), and the in-line fuses for the radio, and could not find any that were blown. All of the other electical systems appear to be fine, EXCEPT for the door locks, which no longer activate in either direction, or when the passenger door locked / unlocked with the key. Anyone out there have any idea what could be going on? Is there another block of fuses somewhere in the car, as none of those up in the front appeared to be dedicated to the interior / accessories. Sorry, I'm still new to this, but loving every minute of it!

Thanks,

J.

348tb SS Challenge
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post #2 of 4 Old 05-22-2006, 08:26 PM
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Location: Quebexico, Canada
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J Man….Some may be connected in series and going through a relay who knows. But here is how you fix it…buy a 10$ 12V test light and ground one end and start testing both sides of every fuse, sometimes they don’t look blown but they are. Most cars have 2 fuse boxes, check under the carpets under the front hood also the walls. Check owners manual as well, like you said none seem to be for the interior, usually “engine fuses” are under the hood like fuel pump, wipers etc… but stuff like windows, door locks, mirrors are usually inside, under the dash either side but mostly driver side or when you open the driver side door, look where the dash starts (just above the hinges) sometime there is a fuse panel there. Let me know, I can walk you through it, I have 20k of car audio/video in my truck that I installed myself (80 hours of labor).

Another thing, you need to test your radio again to make sure it still works, plug your radio directly to the car battery both positive wires from the radio to the battery terminal, what I mean by that is your constant + and accessories +. Then plug your negative wire to the – of the battery to see if it still works. If it still does, get a speaker any speaker and test every output (front left speaker, then right front, then rear left, rear right) the reason is your radio might work but you could of fried something else.

Keep me posted…

~
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1990 348 TS (87284)

“I build cars for young men that only old men can afford” - Enzo Ferrari
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post #3 of 4 Old 05-24-2006, 09:28 AM Thread Starter
 
Join Date: Dec 2005
Location: St. Petersburg, FL
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Success!

Hello Magnum,

Thanks very much for the assistance. I was finally able to get to my tech manual, and found the second fuse panel under the passenger-side footrest. New head unit and door-locks were quickly & easily restored to full function!

Cheers,

J.

348tb SS Challenge
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post #4 of 4 Old 05-24-2006, 11:56 AM
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Cool good to know everything went well !

~

1990 348 TS (87284)

“I build cars for young men that only old men can afford” - Enzo Ferrari
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