Battery and alternator both check at autozone and both good!!! My batteries volts drop when I turn on my car.check fuses on drivers kick panel and the ones out side by battery and are all good!!! Check wiring with voltmeter all good. Check ign wire on alt and I am getting oround 11.30v ign open. My alt is putting out 11.30v when car is on. My charge and e brake light are on in my dash!!87 Toyota pu 22r 4cyl 2wd automatic!!! Help going crazy!!!!!