all the electrical stuff on my car barring a couple things have stopped working.it happened wen i plugged something into the cigarette lighter.the car starts n runs perfect and i checked the little fuses.what can it be?
When the ignition is off several electrical circuits on a car are inactive - i.e. the wipers don't work for instance - not until you switch the ignition switch.
All these supplementary circuits controlled from the ignition switch could have their power delivered directly from the switch but... that would mean a great big switch and lots of wires connected to it.
So - what car manufacturers do is have the ignition switch control a relay switch on or off and the relay controls power to those other circuits.
My guess is (and it's just a guess) that the relay in question is not operating.
You fail to mention your car make and model.
Good luck...
Peccavi
March 2013
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