how to identify a wire?

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double-j

Member - Posts: 9

Joined: January 01, 2008

Posted: July 07, 2009 at 10:06 AM / IP Logged

Probably a very dumb question but...

I ran about 9 of the same size/color wires thru my fire wall into my truck. I never labeled them so now I need to know which wire is which. They are all in techflex and not able to trace them back to where they originate from. So is there any easy way to do this using a volt meter or something?

I appreciate the help!!!

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i am an idiot

Platinum - Posts: 13,667

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: July 07, 2009 at 10:44 AM / IP Logged

Ground one end of one of the wires. With you meter set to Ohms, touch and hold one lead to the chassis of the vehicle. Now touch the other lead to each wire, one at a time untill you find the one that reads very near 0 Ohms. Label both ends and proceed to the next wire.

Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB

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ckeeler

Gold - Posts: 1,461

Joined: June 20, 2008

Location: New Mexico, United States

Posted: July 07, 2009 at 10:47 AM / IP Logged

set your DMM to continuity and connect one probe to any wire on either side (you may need a long test probe to connect to the other side) with the other probe test each wire until you get continuity. once you do, you have found that that end is from the same wire as the other end, repeat the steps for each wire you have.

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double-j

Member - Posts: 9

Joined: January 01, 2008

Posted: July 07, 2009 at 1:37 PM / IP Logged

Thanks for the reply guys!!!! Makes my life much easier!!!!

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how to identify a wire?

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