trailer lighting?? - Page 2 - SailNet Community
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post #11 of 16 Old 11-12-2011
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Take an alligator clip, one of those clips with a long nose on it, and reach inside the trailer connector with a hot wire from a battery and also of course connect the ground. See if things light up. If this works and you have a good ground from vehicle to trailer then consider relays and be sure to fuse the circuits.
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post #12 of 16 Old 11-12-2011
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It may not hurt to check that the bulbs are "in place" and haven't rattled out of their sockets due to shipping, handeling etc...

"Might as well take 'er out...If anything is gonna happen...It's gonna happen out there..."
"Captin Ron"
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post #13 of 16 Old 11-12-2011
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What you need to do is test the continuity of the ground. You need a multimeter for this, on ohms range.

Check that you have around 0 ohms (might be 1 ohm, no higher) between the vehicle ground and that pin on the car's 4 way connector.

Then check between the trailer's ground pin and anywhere on the trailer chassis where you can touch exposed metal.

There should be a wire from the trailer's ground pin, to the trailer's chassis. If this is broken (can be broken internally so it looks OK) or has a bad connection this will stop all the lights working.

These things age quickly from regular dipping in water!

There's only so far you can go with a test light. A multimeter is a much more powerful tool.

Bristol 31.1, San Francisco Bay
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post #14 of 16 Old 11-12-2011
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Quote:
Originally Posted by MarkSF View Post
What you need to do is test the continuity of the ground. You need a multimeter for this, on ohms range.

Check that you have around 0 ohms (might be 1 ohm, no higher) between the vehicle ground and that pin on the car's 4 way connector.

There's only so far you can go with a test light. A multimeter is a much more powerful tool.
Nah, Use a piece of wire with two bare ends and look for sparks. (just kidding)


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post #15 of 16 Old 11-12-2011
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Sparks

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Nah, Use a piece of wire with two bare ends and look for sparks. (just kidding)
In reality, I have done this, but the problem is the way I do it, I usually blow a fuse.
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post #16 of 16 Old 11-13-2011 Thread Starter
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well, thanks so much for the suggestions. i couldnt make anything happen, so i purchased the magnetic temp lights, which dont need the ground. plugged them in and still nothing. so, guess the tester was lying. so here i sit on land missing my trip and ready, somewhat, to begin tomorrow on car plug issue. thanks again.
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