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Electrical issue?


Fiascoxl
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Galant VR-4 org Post #: 1118535 posted 04/16/13 12:05 PM     Remind Me!  Send Private Message   Edit Post      
I had a alternator problem a few days ago with it most likely being the voltage regulator, the volts would climb up to 17 with anything higher than 3k rpms. So I replaced it with the OEM alternator that came with the car. Now my problem is when I was checking various things, I had the main 100 amp power fuse out and forgot about it and cranked the engine over. As soon as I did this I blew a few fuses instantly, my seat belt stopped working and the light on the door stopped too. Also the sunroof is blowing fuses as soon as I put them in. Does anyone know what I did wrong or where I need to start checking first? Thankfully my seat belt is stuck closed but when I opened the passenger side it open and stayed open, now I have the stupid seat belt light flashing constantly! Any help is appreciated!



92 VR4 #740 Nile Black

Posts: 320 | From: Stuarts Draft, Va | Member Since: 01/26/13 | IP: (71.63.12.108) | Report this post to a Moderator

5OF2k
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Galant VR-4 org Post #: 1118536 posted 04/16/13 12:43 PM     Remind Me!  Send Private Message   Edit Post      
Sounds like a short somewhere, for sure. Time to DL the service manuals and start checking related circuits/wires one at a time! I do believe the windows/belts/radio/etc are on the same circuits, but its been a while since ive had to look at the body wiring diagram so i could be wrong..

-Jake



1993 Talon TSI, FPgreen DD
1957 VW Beetle Sedan Deluxe
1997 Civic EX, B18c/5lug swapped
2002 Yamaha Fz-1
Looking for another GVR4, or 5/2000...PM!

Posts: 664 | From: colorado springs, colorado | Member Since: 03/28/12 | IP: (166.137.209.33) | Report this post to a Moderator

Fiascoxl
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740/1000


Galant VR-4 org Post #: 1118572 posted 04/16/13 04:46 PM     Remind Me!  Send Private Message   Edit Post      
Thanks for the suggestion, I have a short in the sunroof wiring somewhere. I probed both sides of the fuse (+ to one side and - to the other) and got 12v. So this means I have a grounded circuit in the wiring somewhere correct? Both spots on the fuse also get 12v when the negative is grounded too. Ugh, I guess it is time to start tearing into it.



92 VR4 #740 Nile Black

Posts: 320 | From: Stuarts Draft, Va | Member Since: 01/26/13 | IP: (70.32.221.8) | Report this post to a Moderator

5OF2k
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Galant VR-4 org Post #: 1118716 posted 04/17/13 12:38 PM     Remind Me!  Send Private Message   Edit Post   
Wait, what?

What you need to do, is remove the fuse, leave the neg lead of the DVOM on a ground source, and place the pos lead of the DVOM on one sife of the box to see if there's power, then move the lead to the other side and see if there's power. THat will give you a general idea as to which side of the circuit said short is.

For instance, if you try it on a known good circuit(fuse removed, of course), you'll notice only ONE side of the fuse box will have power to it. When you add a fuse, it basically "bridges" the current and completes the circuit.

Does that make sense?

-Jake



1993 Talon TSI, FPgreen DD
1957 VW Beetle Sedan Deluxe
1997 Civic EX, B18c/5lug swapped
2002 Yamaha Fz-1
Looking for another GVR4, or 5/2000...PM!

Posts: 664 | From: colorado springs, colorado | Member Since: 03/28/12 | IP: (140.32.120.188) | Report this post to a Moderator


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