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chefdc1's avatar
chefdc1
Explorer
Nov 12, 2016

No 12 volt power after disconncting coach battery

I recently disconnected my coach battery to check for water levels and no longer have 12 v power. I forgot to disconnect shore power before doing this. All of the fuses are okay and everything works w...
Harvey51's avatar
Harvey51
Explorer
Nov 12, 2016
On my rig, black goes to the positive terminal and white is negative to ground. You could follow the wires to see which one is grounded.

The Ohms ranges on your multimeter could be used to see which wire(s) go to ground. On a low Ohms range check to see what happens when you touch the two leads together - should read near zero. Then hold or connect one lead to to chassis ground and touch the other one to each wire in turn and see which one gives a near zero resistance.

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