My 2011 Ford Fusion is only registering ~9.3 V on the headlamp connector, when I’m imagining it should be up around 12. This is a problem as that doesn’t seem to be sufficient to activate the aftermarket HID lights currently installed. I’m not the best with cars but I dabble with electrical stuff, so is there anything anyone can recommend I check?
Other info: I didn’t install this system, and it worked for about a year after I got the car. Also while they don’t turn on at all now, the problem started as an intermittent one, so the problem isn’t blown bulbs.
I measured the low voltage on the connector, but also to the battery terminal which I gather indicates that it isn’t a bad ground?