Which wire to positive on battery
It has been over a year since we got the camper out and I don't remember which wires go to positive and negative. I've got one battery and one red wire and two white wires. I know color doesn't mean m...
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2oldman wrote:fitznj wrote:How?
Get a multimeter from WalMart (real cheap) and use to to test each wire - this will a sure way of knowing which wire is Pos and Neg.
The ground(-) wire will be a short to the chassis. The positive will not.
Assuming the meter is set up to beep when there's a short.
1) Unplug all electricity. No 110, no battery.
2) connect one end of the meter to a clean metal on the frame - a clean bolt or sheet metal screw that goes into the frame.
3) Connect the the other end to each wire, one at a time.
The ground wire(s) should beep. The (+) wire should not.
As a double check, you can find the +12v pin on the tow plug and verify that the the (+) wire is connected to that by putting one lead on the (+) wire and one on the +12v pin.
smkettner wrote:
Set meter to 20 volt DC scale. Plug in the RV and measure voltage between red and white(1) and white(2).
Post the results.
This should work too. Just be sure that the lugs on those three wires don't touch anything during your test....
