You have a very high resistance connection to your appliances. When turned off, no current is drawn which allows your multimeter to read the 12 VDC available. When turned on and current is drawn the entire 12 VDC is dropped across the high resistance connection so o VDC will be read at the load terminals. Think of it like a water hose with a spray handle on the end. When the spray handle valve is shut it has full pressure to the sprayer even if there is a kink in the hose. But squeeze the trigger to allow the water to flow and the pressure diminishes to zero with almost zero flow due to the kink in the hose.
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
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2024 Chevrolet Trax 2RS - Soon 2B TOAD
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