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> Help! Serious Electrical Problems!, The weirdest thing I've ever seen...
post Apr 12, 2005 - 2:03 AM
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Coomer



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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. frown.gif

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. frown.gif Anyone have any ideas?


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post Apr 22, 2005 - 5:59 PM
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Snarfer

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I will only keep these on my filebox for a week, so people don't link to them. lemme know if you have any questions or find anything out, electrical problems are the worst.

This post has been edited by Snarfer: Apr 22, 2005 - 6:00 PM

Posts in this topic
- Coomer   Help! Serious Electrical Problems!   Apr 12, 2005 - 2:03 AM
- - Batman722   Don't be scared, it'll be OK. It sounds li...   Apr 12, 2005 - 2:11 AM
- - Coomer   I took out my alarm recently and was working on re...   Apr 12, 2005 - 2:17 AM
- - Silvan   The voltages you measure could indicate that the b...   Apr 12, 2005 - 4:42 AM
- - bufferdan   Test main power source going to the alternator...   Apr 12, 2005 - 8:48 AM
- - sapperk   I had that problem on a smaller scale. It turned o...   Apr 12, 2005 - 6:32 PM
- - prez   i had a similar problem and every few days my batt...   Apr 13, 2005 - 2:28 AM
- - slipgun   Prez, I have a simmilar problem... it drains if I ...   Apr 13, 2005 - 4:52 PM
- - Coomer   My battery is fine. I took it out and had it teste...   Apr 13, 2005 - 6:22 PM
- - Snarfer   What is the voltage drop from the hot side of 50A ...   Apr 13, 2005 - 6:29 PM
- - bufferdan   Like i said..test for voltage going to the alterna...   Apr 13, 2005 - 7:54 PM
|- - Coomer   QUOTE(bufferdan @ Apr 13, 2005 - 5:54 PM)Like...   Apr 13, 2005 - 8:14 PM
- - 946thGenGT   If it were me I would be backtracking through all ...   Apr 13, 2005 - 8:21 PM
|- - Coomer   QUOTE(946thGenGT @ Apr 13, 2005 - 6:21 PM)If ...   Apr 13, 2005 - 8:25 PM
|- - 946thGenGT   QUOTE(Coomer @ Apr 13, 2005 - 7:25 PM)QUOTE(9...   Apr 13, 2005 - 8:45 PM
- - bufferdan   IF you are loosing ALL power then it IS a MAIN POW...   Apr 13, 2005 - 11:34 PM
- - von125   I`m with Bufferdan on this. If your getting low vo...   Apr 14, 2005 - 6:09 AM
- - Coomer   The alternator is getting +4 volts when the car is...   Apr 14, 2005 - 11:09 PM
- - BlackCelicaGT94   my dad says "theres a wire that comes off t...   Apr 15, 2005 - 12:49 AM
- - Coomer   Bump. Anyone got an answer for my alternator quest...   Apr 15, 2005 - 7:27 AM
- - bufferdan   Croomer, Im pretty sure you should be pulling 12v...   Apr 15, 2005 - 8:29 AM
- - bufferdan   Get a decent sized wire...or even a jumper cable. ...   Apr 15, 2005 - 8:33 AM
- - stormtrupr   have you checked all of the fuses with a multimete...   Apr 15, 2005 - 9:40 AM
- - Akimbo   last time i had problems it was neither the batter...   Apr 15, 2005 - 11:07 AM
- - Coomer   QUOTE(bufferdan @ Apr 15, 2005 - 6:33 AM)Get ...   Apr 15, 2005 - 10:16 PM
- - Batman722   remember when you got rid of alot of extra wires i...   Apr 15, 2005 - 11:13 PM
- - Coomer   I unwrapped the harness and inspected all of the c...   Apr 15, 2005 - 11:25 PM
- - Coomer   I just realized that even with the four gauge wire...   Apr 16, 2005 - 1:03 AM
- - Dm_Vinny   Coomer, Me personally I'd start off tracing...   Apr 16, 2005 - 1:19 PM
- - madmods   What did you actually wire from your alarm? Starte...   Apr 16, 2005 - 1:22 PM
- - Coomer   QUOTE(Dm_Vinny @ Apr 16, 2005 - 11:19 AM)Coom...   Apr 16, 2005 - 1:43 PM
|- - madmods   QUOTE(Coomer @ Apr 16, 2005 - 6:43 PM)QUOTE(D...   Apr 16, 2005 - 2:16 PM
- - Silvan   Take one cable off from the battery, and measure t...   Apr 17, 2005 - 4:41 PM
- - Coomer   OK, I managed to get the car started and running y...   Apr 17, 2005 - 9:09 PM
- - 946thGenGT   How did you manage to get the car started? Or are...   Apr 17, 2005 - 9:51 PM
|- - Coomer   QUOTE(946thGenGT @ Apr 17, 2005 - 7:51 PM)How...   Apr 17, 2005 - 11:35 PM
- - 946thGenGT   Any updates?   Apr 19, 2005 - 9:37 PM
- - Batman722   QUOTE(Batman722 @ Apr 15, 2005 - 11:13 PM)rem...   Apr 19, 2005 - 9:45 PM
- - Coomer   Not yet. I don't have time to work on the car ...   Apr 20, 2005 - 1:48 PM
- - Coomer   OK, So the car is worse than ever now. On Monday, ...   Apr 21, 2005 - 10:08 PM
- - stormtrupr   sounds like the fuse connections arent good and ca...   Apr 22, 2005 - 10:00 AM
|- - Coomer   QUOTE(stormtrupr @ Apr 22, 2005 - 8:00 AM)sou...   Apr 22, 2005 - 10:51 AM
- - stormtrupr   i thought you had....i just misunderstood you last...   Apr 22, 2005 - 3:50 PM
- - Snarfer   I'm confused at what you mean resistance betwe...   Apr 22, 2005 - 5:05 PM
- - Snarfer   I would check out the integrated relay and jb#1 wh...   Apr 22, 2005 - 5:59 PM
- - Snarfer   I will only keep these on my filebox for a week, s...   Apr 22, 2005 - 5:59 PM
- - Coomer   Snarfer, Thank you so much. I had the component lo...   Apr 22, 2005 - 6:14 PM
- - Coomer   Finally, I made some good progress tonight. I fixe...   Apr 23, 2005 - 12:36 AM
- - Coomer   According to this Toyota god that I just talked to...   Apr 23, 2005 - 2:27 AM
- - Hanyo   good job on finding the electrical problems Christ...   Apr 23, 2005 - 2:56 AM
- - Snarfer   on page 28 of that electrical guide there is somet...   Apr 23, 2005 - 12:40 PM
|- - Coomer   QUOTE(Snarfer @ Apr 23, 2005 - 10:40 AM)on pa...   Apr 23, 2005 - 10:22 PM
- - Consynx   thx coomer, but im not a toyota god   Apr 23, 2005 - 10:55 PM
- - Batman722   QUOTE(Coomer @ Apr 23, 2005 - 10:22 PM)QUOTE(...   Apr 23, 2005 - 11:37 PM
- - Coomer   My ground to my tranny wasn't very good. Why i...   Apr 24, 2005 - 12:44 AM
- - Drocay   good to hear bro, u had us worried.   Apr 24, 2005 - 10:36 AM
- - Snarfer   Heh, after I rebuilt my engine I didn't hook u...   Apr 24, 2005 - 11:41 AM
- - DamDirtyApes   nm   Apr 24, 2005 - 9:31 PM
- - slipgun   YES!!! Great work guys!!!...   Apr 25, 2005 - 8:33 PM


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