Help! Serious Electrical Problems!, The weirdest thing I've ever seen... |
Help! Serious Electrical Problems!, The weirdest thing I've ever seen... |
Apr 12, 2005 - 2:03 AM |
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Administrator Joined Aug 23, '02 From Seattle, WA Currently Offline Reputation: 14 (100%) |
I'm so confused and scared right now...I can't figure out for the life of me what's going on with my car.
It started with me trying to start it, and only the fans turning on. I checked the fuses and none were blown, so I checked the switched wire at the starter, and it was giving me no voltage. I then unplugged the battery and went inside to take a break. When I came back out and plugged the battery back in, I noticed that the trunk light didn't turn on. I looked at the dash and the door open light wasn't on either. I tried turning on the parking lights and they didn't turn on. I tried the horn and it didn't work. Basically, nothing on the car works. This is where it gets confusing. I've got a fuse 6" from the battery, and it's in good shape. Figuring I'd popped some other fuse, I checked all of them in the dash and under the hood, and they were all good. I pulled the main 50 amp fuse under the hood and tested voltage on the hot side. Voltage started at around 10 volts and over a couple seconds rose to 12.4 volts and held there. I then tried the same thing for the horn fuse under the hood, and it started at about 8 volts before rising to 12.4 and staying there. At this point I disconnected the negative cable and came inside. Someone suggested testing voltage between the terminals and the clamps with the headlights on to test for a bad battery connection, but this yielded no voltage. At the battery terminals, I'm getting 12.4 volts. At the battery's fuse and a bolt in my trunk, I'm also getting 12.4 volts. At this point, I'm so confused. I've never seen anything this weird in my life. Anyone have any ideas? -------------------- New Toyota project coming soon...
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Apr 15, 2005 - 10:16 PM |
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Administrator Joined Aug 23, '02 From Seattle, WA Currently Offline Reputation: 14 (100%) |
QUOTE(bufferdan @ Apr 15, 2005 - 6:33 AM) Get a decent sized wire...or even a jumper cable. Hook it to the battery + and then directly to the Alternator +. Try and start the car now [right][snapback]271800[/snapback][/right] Tried this tonight just for testing purposes, and it did nothing. QUOTE(stormtrupr @ Apr 15, 2005 - 7:40 AM) have you checked all of the fuses with a multimeter? i had my amp fuse go and it still looked perfectly fine, also, have you checked to make sure voltage is going accross the fuses to the other side? again with my amp fuse, the one was broke even though it looked fine but the multimeter showed infinite(or really high) resistance(means it was broke) i then proceeded to buy a new fuse and all was good for a couple days until i my amp wouldnt work again. Turns out not only was the first fuse broke but, the connections to the fuse werent making good enough contact. i had 12 volts on the battery side but nothing on the other side of the fuse....you have probably checked this but just trying to help good luck!!! [right][snapback]271824[/snapback][/right] Fuses are all good. I tested them all today with the multimeter. QUOTE(Akimbo @ Apr 15, 2005 - 9:07 AM) last time i had problems it was neither the battery or the alternator, but it was the charging fuse. Maybe that'll help people, cuz we overlooked it. [right][snapback]271860[/snapback][/right] Where's the charging fuse? Today I worked on the car, and now some stuff is working, but some stuff isn't. When I turn the key to accessory, the airbag light turns on. When I turn it to on, the brake light comes on(e-brake), the check engine light comes on(always does when the car is on and not running), etc. When I turn the key to start the fans turn on, but that's it. The door open indicator doesn't turn on when I open a door, the trunk light doesn't come on with the trunk open, etc. The dome light fuse(in the engine bay) is good, but neither side is hot. The little chime thing that sounds when the key is turned to on and your seatbelt isn't on or when you have the key in ACC with the door open doesn't sound either. I spent a couple hours at the Toyota dealer looking through the BGBs for answers, but couldn't find any. This is just a complete nightmare. -------------------- New Toyota project coming soon...
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