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Old 01-03-2006, 12:19 AM   #11
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Oh yah my cruise seems to be affected by this short too. Sometimes it works sometimes it doesn't.
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Old 01-03-2006, 12:22 AM   #12
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Default Compromise

I will perform both methods of finding the short.

Your guys and the internet site.

I will keep track of both volts and amps.

Kill two birds with one stone.
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Old 01-03-2006, 12:27 AM   #13
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Default Using your method

What do I connect the negative and postive probes of multimeter too? (set to measure amps)

How high should I set my multimeter, in terms of amps?

Do I simply stand there holding the probes, while helper disconnects fuses one by one, while I write down the amp loss on each fuse pull?

When helper pulls fuses one by one, does he immediately insert back before he pulls the next fuse?
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Old 01-03-2006, 12:36 AM   #14
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Default Re: Using your method

Quote:
Originally Posted by dougworner
What do I connect the negative and postive probes of multimeter too? (set to measure amps)

How high should I set my multimeter, in terms of amps?

Do I simply stand there holding the probes, while helper disconnects fuses one by one, while I write down the amp loss on each fuse pull?

When helper pulls fuses one by one, does he immediately insert back before he pulls the next fuse?
You connect the ammeter in series. As if it were part of the wire. So disconnect your battery, and connect the ammeter between the battery cable (positive) and the battery terminal (positive) make it part of the circuit.

If it'* a digital multimeter (DMM), simply set it to autoscale. Most of what you'll read will probably be less than 1 amp.

Simply stand there holding it connected, but you'll have to free a hand to write numbers down.

You can do the fuse pulling in one of two ways. Either pull them all until the draw stops (have your helper 'map out' where they were), or simply write down how much the total draw DECREASED for each fuse pulled, then put it back.

That article was probably written in the manner it was in order to cater to the average homeowner who knows how to read volts (in parallel) so they wouldn't have to go into a discourse on measuring current (in series). Most people don't know how to do it. That article was written for the layman as a general guide, but it must be done with current to detect small parasitic draws.
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Old 01-03-2006, 12:54 AM   #15
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How do I know what current drops are significant, and which are not?
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Old 01-03-2006, 01:09 AM   #16
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Quote:
Originally Posted by dougworner
How do I know what current drops are significant, and which are not?
you post em here
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Old 01-03-2006, 01:10 AM   #17
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Write 'em all down. You're pulling 1.56 amps (as an example) and you pull fuse #12, and it drops to 1.43 amps. We want the difference (0.13 amps, or 130 mA) for that fuse.

Doug, we WILL get your problem beat. Nobody is better at it than us. Not even the dealer.
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