Wiring help (1 Viewer)

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AuburnFJsexy

AuburnFJsexy

Joined
Jul 24, 2005
Threads
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Location
Dacula, GA
Well I decided to finally put an extra 12v outlet up front and I attempted to install it this weekend. Once I wired everything up and went to test it out, nothing worked and I and completely confused on why :bang:. I used 12 gauge wire to ground the outlet and to run to the fuse box and then 4 gauge from the fuse box to the battery. I attached some pictures to show what I have done and hopefully give yall an idea of what is going on. 1st pic is of the outlet...2nd pic is of where I grounded it (pass. kick panel)....3rd pic is of the fuse box....4th pic is of the jumper attached to the battery. Any advice will help, thanks!
12voutlet.jpg
wiring1.jpg
wiring2.jpg
 
4th pic
wiring3.jpg
 
Do you have an ohmeter, to see where the circuit is broken? Looks like it should work...
 
Auburn,
Here are some pointers and some advice:
1). Did you chek acroiss the circuit with a DVOM set on the DC scale? If so, what is your reading?
2). Perform a voltage drop test on your -(Negative/ground circuit). Do this by placing one of your leads on the ground bolt and the other lead to the negative terminal on the power outlet. What is your reading?
3). If all this is too much do an ohm-meter test of the power outlet. You will have to disconnect the power source so you do not burn up your meter. Put one lead on the negative side of the power outlet and the otherr lead to the negative ground point. The other test using an ohmeter would be to see if you have a complete circuit across the power out let itself. To do this remove both wires to the power outlet. Put one lead of the DVOM (Ohms) on the negative terminal and probe inside the power outlet on the side wall (metal portion) what is your reading? Then do the same with the positive side. What is your reading?

Thanks Ed
 
firetruck41 said:
Do you have an ohmeter, to see where the circuit is broken? Looks like it should work...
Click to expand...

I agree. Looks like it's wired correctly to me. The only reason I can see that it wouldn't work would be a bad fuse....and I'm sure you checked that; right?

If you have a multimeter then it should be quick work to see where the problem is. I would set it on DC and starting with the fuse holder start checking for current. Just touch the red lead to the wiring and the ground lead to any nearby ground source. If you get to the 12Volt outlet and still have power then you will have to switch to ohms and test your ground wire.
 
Thanks for all the responses, I will run to the parts store after work today and buy a multimeter. Looks like I will have to have that to pinpoint where the problem is located. This is my first electrical wiring attempt, so I am definately learning.
 
If you want to only buy one in your lifetime then buy a Fluke brand. There are lots of them on ebay in "buy it now" stores and auctions.

If you just want the cheapest one you can find and you want it today then you might also try Lowe's, Home Depot or WalMart. They probably have more selection than the parts house.
 
One thing not covered in the answers other members posted, is that DC devices are polarity sensitive and, so if all else fails, try switching the polarity (or move the fuse and your slip-on connector to another set of contacts in the off chance that the position you currently have it connected is shorted or open somehow internally. )
 
The Abbot said:
One thing not covered in the answers other members posted, is that DC devices are polarity sensitive and, so if all else fails, try switching the polarity (or move the fuse and your slip-on connector to another set of contacts in the off chance that the position you currently have it connected is shorted or open somehow internally. )
Click to expand...

Finally got some time to look over the outlet today and it turned out that the polarity had been messed up, so I worked with it and all is up and running and I even ran power wires for my CB too. Thanks Abbot and all that chimed in...:cheers:
 
Many of the 12V outlets that I have looked at are only rated for 15 Amp so I would also be a bit surprised that yours is rated for 30 Amps. I would check the rating, per Jason's suggestion, and change the fuse if necessary.
 
The important thing to remember with the fuse selection is that you want the fuse to blow before you start melting wires and/or whatever device you have hooked up (IE. 12v power outlet, CB, inverter...) and starting a fire.

I found info online to see how much power a specific gauge wire could safely handle.
 
The setup I did, I got from Cruiserdrew's setup that he posted pictures on this thread (https://forum.ih8mud.com/80-series-tech/50486-12v-outlet.html) He has 30 amp fuses, so that was what I put in there. He is running 10 ga. wire in his though, would that make a major difference? I got the outlet from Wal-Mart and I did not see anything about the suggested amp fuse or anything about fuses.
 
I read his thread- see his pictures.

However still believe a 30 amp fuse is overkill will myself errr on the side of caution. Go with a 15 amp, with 12/2 wire.

FYI the factory toyota cig lighter has a 15 amp fuse.
 
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