james'99
Well-Known Member
usually you get one +12v, then the dome switch goes from ground or to door switches that ground. Any method it uses a fast check is this:
On the accord we have that:
far left
white/blue to a ground it should light, or you have a bad fuse (or power wire). Then go white/blue to green/red and it should light with any door open. If it does then you have a bad dome light. If it doesn't then you have a problem with the green/red before it splits to multiple doors.
Okay, that makes sense. Haven't ever pulled it apart. Sorry for my misinformation. The bolt ground would be that "third wire".