Hot answers tagged fuse
5
It sounds to me like a dead battery.
Depending on how accurate your voltmeter is, what you see as 12V may be 11.9V or lower. To give you an idea, an open circuit battery terminal voltage of 11.7V indicates a completely uncharged battery.
What you are describing happened to me once with a Volvo car, due to a faulty switch in the glove-box; the glove-box ...
3
I would just add a comment but I don't have enough points I guess. I just wanted to say you are addressing it correctly. The wrong thing to do (but tempting) is to just throw a bigger fuse in there. Avoid that temptation.
It's possible that someone (previous owner maybe) has tapped into that circuit since it's an easily available 12V source. Trace the ...
1
Do you have a multimeter? Check the current across the fuse (should be zero with nothing plugged in), continuity from fuse-lighter and lighter-ground, and that there isn't any continuity across the lighter.
If you can get to it, unplug the connector from the back of the lighter socket, that way you can check the socket itself separately from the wiring.
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