Why does a blown battery fuse make radio and locks work?
This time around, I disconnected the neg. terminal, installed the new 40A fuse and bam, radio and locks are back What exactly is the battery fuse for though, besides making the radio “work” etc?? Also, I heard some spark noises coming from the alternator area when I was hooking the battery terminal back up. I’m hoping I didn’t do anything.
Why did the fuse blow on my fog light?
Well, there was a thirty amp fuze in for the fog lights when it only called for a 15 amp, so, naturally, when the fuze tried to blow because of the short, it couldn’t, and the wires got so hot, it followed the entire engine wiring harness, and melted and burnt wires together.
What should I do if my battery fuse is blown?
If those are the ONLY things broken when the fuse is blown (make sure that turn signals, brake lights, etc DO work), I would leave a blown fuse in there for the long drive and only try to fix it before a short drive. Don’t risk further damage by replacing the fuse without examining the wiring first.
Can a blown fuse be switched back on?
The breakers reset and can be “switched back on”–so there is no need to replace anything. Much of the time, it’s technically inaccurate to refer to a “blown fuse,” so in this article, we’ll offer you some new concepts and vocabulary to describe your various electrical concerns.
When does a short circuit cause a blown fuse?
The short circuit causes blown fuses or intermittent blown fuses when the wiring is touching ground momentarily. Our last term is open circuit. This occurs when the circuit is open (how clever) usually from a cut wire; in most cases the fuse is not disturbed unless the cut side of the wire carrying current touches ground.
Why is my JB fuse not working properly?
It also shows a splice internal to the JB that splits power to the various places it serves, so with the entire M1 circuit deader-n-a-doornail, the problem appears to be within the JB itself. Pull that #12 fuse out to check the terminals for burning or damage.
Why does my amplifier keep blowing a fuse?
You need to look for any bare wire while insulation and trim it back so that insulation could be done properly without causing continuous blowing of stereo fuses. In other common cases, the wire to the battery is grounding that blows a fuse due to a hot connection before ruining the amplifier.
Why are all my fuses working but no power?
Wiring between the underhood fuse block (PDC) and the JB could be broken or burned up. The #12 fuse location is central to the circuit, so finding out if power is present there will tell us which way to go. Here are the other circuits the fuse feeds… just in case one or two may still operate.
Why does my AM2 fuse keep blowing out?
Ok, after some more googling, I found out a common reason for the AM2 fuse blowing is a shorted condenser (capacitor) inside the distributor. All this condenser is supposed to do is to limit static for the radio, so I just clipped the wire. I replaced the fuse, and it started and ran fine. Drove for about two blocks, then the fuse blew again.
Why does the fuse blow every time I start my car?
If I leave the car sit for a few hours and try to start it with a fresh fuse, it will run for ~30 seconds, then the fuse will blow. If I replace the fuse and try to start it right away, it will blow the fuse as soon as I turn the key to “on”.
This time around, I disconnected the neg. terminal, installed the new 40A fuse and bam, radio and locks are back What exactly is the battery fuse for though, besides making the radio “work” etc?? Also, I heard some spark noises coming from the alternator area when I was hooking the battery terminal back up. I’m hoping I didn’t do anything.
If those are the ONLY things broken when the fuse is blown (make sure that turn signals, brake lights, etc DO work), I would leave a blown fuse in there for the long drive and only try to fix it before a short drive. Don’t risk further damage by replacing the fuse without examining the wiring first.
What happens when battery terminals connect wrong way around?
There were a lot of sparks and and it all resulted in the car doing nothing anymore except for the exterior lights and horn. Both large fuses were checked and renewed. The one for the alternator and the one in the passenger footwel but no result. Only the alternator fuse was blown by the way…
What should I do if my alternator blew?
Probably best to get it in with a specialist. Alternator might be damaged but that fuse that blew may have prevented this. It’s likely that every control unit in the car is blown.