OK let me (try) to explain this. First my courtesy (map) lite comes on when the doors open if the switch on the lite is in the forward position (towards front of the car) as well as the threshhold lites. They also come on if the switch on the light is moved to the rear. And if the headlight switch is turn to the left.
The lite has two wires going to it, one is a org. with two black stripes which is the 12v hot coming from the fuse box. The other is wht with a black stripe which is coming from the door jam switches through the headlamp switch. It is the ground. So when the doors open, headlight sw. is turned or the switch on the courtesy lite is activated it connects the wht. wire to ground and turns on the lite. The hot to the lite is always on as opposed to other lites in the car.
Wen the sw. on the lite is forward the ground is isolated, and when it is moved rearward it connects to grd. by way of the mounting screw.
My bulb reads GE50
__________________
68' Lemans conv.
69' GTO conv.
|